CHECKWIND.API v2 now live

CHECKWIND.API v2 endpoints are now live. New features and enhancements include:

  • Significantly reduced response time.
  • Data is grouped by category (e.g. terrain, shielding, topography).
  • View your request history for a specific day or month with the “/history” endpoint.
  • Return Google’s elevation data to plot your own terrain profiles by adding includeElevationData=true to your request.

The legacy endpoints will continue to work side-by-side with the v2 endpoints for a transition period while existing customers migrate to the v2 endpoints, after which they will be removed.

Here’s an example response generated using the CHECKWIND.API v2 ASNZS1170 endpoint:

{
    "results": {
        "windRegion": "A2",
        "critical": "NORTH WEST",
        "regionalWindSpeed": {
            "vr10": 34,
            "vr25": 37,
            "vr50": 39,
            "vr100": 41,
            "vr200": 43,
            "vr500": 45,
            "vr1000": 46,
            "vr2500": 48
        },
        "north": {
            "md": 0.8,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 2.8,
                        "mzcat": 0.846,
                        "zones": [
                            {
                                "extent": 400.0,
                                "category": 3.0
                            },
                            {
                                "extent": 600.0,
                                "category": 2.5
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 0.0,
                        "hs": 0.0,
                        "bs": 0.0,
                        "ms": 1.0
                    },
                    "topography": {
                        "critical": "NORTH NORTH WEST",
                        "type": "RIDGE",
                        "h": 87.0,
                        "lu": 254.44,
                        "x": -20.0,
                        "upwindSlope": 0.171,
                        "mh": 1.2433,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.2433,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 3.0,
                    "elevation": 84.0,
                    "footprint": [
                        {
                            "lat": -33.834123,
                            "lng": 151.25611
                        },
                        {
                            "lat": -33.83404,
                            "lng": 151.256328
                        },
                        {
                            "lat": -33.834111,
                            "lng": 151.256367
                        },
                        {
                            "lat": -33.834194,
                            "lng": 151.25615
                        },
                        {
                            "lat": -33.834123,
                            "lng": 151.25611
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 85.5,
                    "footprint": [
                        {
                            "lat": -33.834258,
                            "lng": 151.256118
                        },
                        {
                            "lat": -33.834169,
                            "lng": 151.256282
                        },
                        {
                            "lat": -33.834217,
                            "lng": 151.25632
                        },
                        {
                            "lat": -33.834307,
                            "lng": 151.256156
                        },
                        {
                            "lat": -33.834258,
                            "lng": 151.256118
                        }
                    ]
                }
            ]
        },
        "northEast": {
            "md": 0.8,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 2.6,
                        "mzcat": 0.862,
                        "zones": [
                            {
                                "extent": 200.0,
                                "category": 3.0
                            },
                            {
                                "extent": 600.0,
                                "category": 2.5
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 0.0,
                        "hs": 0.0,
                        "bs": 0.0,
                        "ms": 1.0
                    },
                    "topography": {
                        "critical": "EAST NORTH EAST",
                        "type": "ESCARPMENT",
                        "h": 83.5,
                        "lu": 163.57,
                        "x": 140.0,
                        "upwindSlope": 0.2552,
                        "mh": 1.2847,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.2847,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 3.0,
                    "elevation": 86.5,
                    "footprint": [
                        {
                            "lat": -33.83425,
                            "lng": 151.256389
                        },
                        {
                            "lat": -33.834145,
                            "lng": 151.256814
                        },
                        {
                            "lat": -33.834217,
                            "lng": 151.256839
                        },
                        {
                            "lat": -33.834321,
                            "lng": 151.256415
                        },
                        {
                            "lat": -33.83425,
                            "lng": 151.256389
                        }
                    ]
                }
            ]
        },
        "east": {
            "md": 0.8,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 1.71,
                        "mzcat": 0.95,
                        "zones": [
                            {
                                "extent": 100.0,
                                "category": 3.0
                            },
                            {
                                "extent": 200.0,
                                "category": 2.0
                            },
                            {
                                "extent": 400.0,
                                "category": 2.5
                            },
                            {
                                "extent": 600.0,
                                "category": 1.0
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 1.0,
                        "hs": 9.0,
                        "bs": 26.07,
                        "ms": 0.8632
                    },
                    "topography": {
                        "critical": "EAST",
                        "type": "ESCARPMENT",
                        "h": 85.5,
                        "lu": 165.29,
                        "x": 100.0,
                        "upwindSlope": 0.2586,
                        "mh": 1.3151,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.3151,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 3.0,
                    "elevation": 89.0,
                    "footprint": [
                        {
                            "lat": -33.834373,
                            "lng": 151.256624
                        },
                        {
                            "lat": -33.834244,
                            "lng": 151.256847
                        },
                        {
                            "lat": -33.834307,
                            "lng": 151.256899
                        },
                        {
                            "lat": -33.834436,
                            "lng": 151.256677
                        },
                        {
                            "lat": -33.834373,
                            "lng": 151.256624
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 90.0,
                    "footprint": [
                        {
                            "lat": -33.834494,
                            "lng": 151.256464
                        },
                        {
                            "lat": -33.834422,
                            "lng": 151.256596
                        },
                        {
                            "lat": -33.834496,
                            "lng": 151.256654
                        },
                        {
                            "lat": -33.834568,
                            "lng": 151.256522
                        },
                        {
                            "lat": -33.834494,
                            "lng": 151.256464
                        }
                    ]
                }
            ]
        },
        "southEast": {
            "md": 0.95,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 2.15,
                        "mzcat": 0.898,
                        "zones": [
                            {
                                "extent": 200.0,
                                "category": 3.0
                            },
                            {
                                "extent": 500.0,
                                "category": 2.5
                            },
                            {
                                "extent": 600.0,
                                "category": 1.0
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 1.0,
                        "hs": 9.0,
                        "bs": 54.69,
                        "ms": 0.8127
                    },
                    "topography": {
                        "critical": "EAST SOUTH EAST",
                        "type": "ESCARPMENT",
                        "h": 86.5,
                        "lu": 262.0,
                        "x": 60.0,
                        "upwindSlope": 0.1651,
                        "mh": 1.233,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.233,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 9.0,
                    "elevation": 90.0,
                    "footprint": [
                        {
                            "lat": -33.834892,
                            "lng": 151.25637
                        },
                        {
                            "lat": -33.834693,
                            "lng": 151.256732
                        },
                        {
                            "lat": -33.83464,
                            "lng": 151.256689
                        },
                        {
                            "lat": -33.834628,
                            "lng": 151.25671
                        },
                        {
                            "lat": -33.83458,
                            "lng": 151.256672
                        },
                        {
                            "lat": -33.834529,
                            "lng": 151.256764
                        },
                        {
                            "lat": -33.834889,
                            "lng": 151.257051
                        },
                        {
                            "lat": -33.834938,
                            "lng": 151.256961
                        },
                        {
                            "lat": -33.834922,
                            "lng": 151.256948
                        },
                        {
                            "lat": -33.834936,
                            "lng": 151.256923
                        },
                        {
                            "lat": -33.834959,
                            "lng": 151.256942
                        },
                        {
                            "lat": -33.835155,
                            "lng": 151.256586
                        },
                        {
                            "lat": -33.835077,
                            "lng": 151.256525
                        },
                        {
                            "lat": -33.835014,
                            "lng": 151.256641
                        },
                        {
                            "lat": -33.834996,
                            "lng": 151.256627
                        },
                        {
                            "lat": -33.834968,
                            "lng": 151.256678
                        },
                        {
                            "lat": -33.834903,
                            "lng": 151.256626
                        },
                        {
                            "lat": -33.834933,
                            "lng": 151.256573
                        },
                        {
                            "lat": -33.834919,
                            "lng": 151.256562
                        },
                        {
                            "lat": -33.834984,
                            "lng": 151.256444
                        },
                        {
                            "lat": -33.834892,
                            "lng": 151.25637
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 90.5,
                    "footprint": [
                        {
                            "lat": -33.835182,
                            "lng": 151.256453
                        },
                        {
                            "lat": -33.835138,
                            "lng": 151.256531
                        },
                        {
                            "lat": -33.835172,
                            "lng": 151.256558
                        },
                        {
                            "lat": -33.835216,
                            "lng": 151.25648
                        },
                        {
                            "lat": -33.835182,
                            "lng": 151.256453
                        }
                    ]
                }
            ]
        },
        "south": {
            "md": 0.9,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 2.15,
                        "mzcat": 0.898,
                        "zones": [
                            {
                                "extent": 100.0,
                                "category": 3.0
                            },
                            {
                                "extent": 400.0,
                                "category": 2.5
                            },
                            {
                                "extent": 500.0,
                                "category": 3.0
                            },
                            {
                                "extent": 600.0,
                                "category": 1.0
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 2.0,
                        "hs": 6.0,
                        "bs": 26.31,
                        "ms": 0.8327
                    },
                    "topography": {
                        "critical": "SOUTH SOUTH EAST",
                        "type": "ESCARPMENT",
                        "h": 87.5,
                        "lu": 271.67,
                        "x": 80.0,
                        "upwindSlope": 0.161,
                        "mh": 1.2233,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.2233,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 6.0,
                    "elevation": 92.0,
                    "footprint": [
                        {
                            "lat": -33.835114,
                            "lng": 151.255775
                        },
                        {
                            "lat": -33.834916,
                            "lng": 151.256127
                        },
                        {
                            "lat": -33.835126,
                            "lng": 151.256298
                        },
                        {
                            "lat": -33.835324,
                            "lng": 151.255945
                        },
                        {
                            "lat": -33.83525,
                            "lng": 151.255885
                        },
                        {
                            "lat": -33.835131,
                            "lng": 151.256097
                        },
                        {
                            "lat": -33.83508,
                            "lng": 151.256055
                        },
                        {
                            "lat": -33.835199,
                            "lng": 151.255843
                        },
                        {
                            "lat": -33.835114,
                            "lng": 151.255775
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 91.5,
                    "footprint": [
                        {
                            "lat": -33.835225,
                            "lng": 151.255587
                        },
                        {
                            "lat": -33.835183,
                            "lng": 151.255666
                        },
                        {
                            "lat": -33.835216,
                            "lng": 151.255693
                        },
                        {
                            "lat": -33.835188,
                            "lng": 151.255745
                        },
                        {
                            "lat": -33.835252,
                            "lng": 151.255795
                        },
                        {
                            "lat": -33.83527,
                            "lng": 151.255762
                        },
                        {
                            "lat": -33.835278,
                            "lng": 151.255768
                        },
                        {
                            "lat": -33.83527,
                            "lng": 151.255784
                        },
                        {
                            "lat": -33.835324,
                            "lng": 151.255825
                        },
                        {
                            "lat": -33.835311,
                            "lng": 151.255849
                        },
                        {
                            "lat": -33.835381,
                            "lng": 151.255904
                        },
                        {
                            "lat": -33.83541,
                            "lng": 151.25585
                        },
                        {
                            "lat": -33.83544,
                            "lng": 151.255874
                        },
                        {
                            "lat": -33.835484,
                            "lng": 151.25579
                        },
                        {
                            "lat": -33.835411,
                            "lng": 151.255733
                        },
                        {
                            "lat": -33.835421,
                            "lng": 151.255715
                        },
                        {
                            "lat": -33.835372,
                            "lng": 151.255677
                        },
                        {
                            "lat": -33.835362,
                            "lng": 151.255694
                        },
                        {
                            "lat": -33.835225,
                            "lng": 151.255587
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 91.5,
                    "footprint": [
                        {
                            "lat": -33.834857,
                            "lng": 151.256168
                        },
                        {
                            "lat": -33.834806,
                            "lng": 151.256259
                        },
                        {
                            "lat": -33.835095,
                            "lng": 151.256497
                        },
                        {
                            "lat": -33.835147,
                            "lng": 151.256405
                        },
                        {
                            "lat": -33.834857,
                            "lng": 151.256168
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 90.5,
                    "footprint": [
                        {
                            "lat": -33.834719,
                            "lng": 151.256038
                        },
                        {
                            "lat": -33.834525,
                            "lng": 151.256397
                        },
                        {
                            "lat": -33.8346,
                            "lng": 151.256456
                        },
                        {
                            "lat": -33.834795,
                            "lng": 151.256097
                        },
                        {
                            "lat": -33.834719,
                            "lng": 151.256038
                        }
                    ]
                }
            ]
        },
        "southWest": {
            "md": 0.95,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 2.7,
                        "mzcat": 0.854,
                        "zones": [
                            {
                                "extent": 300.0,
                                "category": 3.0
                            },
                            {
                                "extent": 600.0,
                                "category": 2.5
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 2.0,
                        "hs": 6.0,
                        "bs": 12.09,
                        "ms": 0.8957
                    },
                    "topography": {
                        "critical": "SOUTH SOUTH WEST",
                        "type": "RIDGE",
                        "h": 89.0,
                        "lu": 292.5,
                        "x": 40.0,
                        "upwindSlope": 0.1521,
                        "mh": 1.2086,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.2086,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 6.0,
                    "elevation": 93.0,
                    "footprint": [
                        {
                            "lat": -33.834908,
                            "lng": 151.255615
                        },
                        {
                            "lat": -33.834792,
                            "lng": 151.255826
                        },
                        {
                            "lat": -33.834766,
                            "lng": 151.255805
                        },
                        {
                            "lat": -33.834688,
                            "lng": 151.255941
                        },
                        {
                            "lat": -33.83481,
                            "lng": 151.256042
                        },
                        {
                            "lat": -33.835006,
                            "lng": 151.255689
                        },
                        {
                            "lat": -33.834908,
                            "lng": 151.255615
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 90.5,
                    "footprint": [
                        {
                            "lat": -33.835034,
                            "lng": 151.255481
                        },
                        {
                            "lat": -33.835019,
                            "lng": 151.255557
                        },
                        {
                            "lat": -33.835068,
                            "lng": 151.255571
                        },
                        {
                            "lat": -33.835072,
                            "lng": 151.255552
                        },
                        {
                            "lat": -33.835093,
                            "lng": 151.255558
                        },
                        {
                            "lat": -33.835104,
                            "lng": 151.255502
                        },
                        {
                            "lat": -33.835034,
                            "lng": 151.255481
                        }
                    ]
                }
            ]
        },
        "west": {
            "md": 1.0,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 2.9,
                        "mzcat": 0.838,
                        "zones": [
                            {
                                "extent": 200.0,
                                "category": 2.5
                            },
                            {
                                "extent": 600.0,
                                "category": 3.0
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 0.0,
                        "hs": 0.0,
                        "bs": 0.0,
                        "ms": 1.0
                    },
                    "topography": {
                        "critical": "WEST NORTH WEST",
                        "type": "RIDGE",
                        "h": 35.5,
                        "lu": 350.0,
                        "x": 0.0,
                        "upwindSlope": 0.0507,
                        "mh": 1.0774,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.0774,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 3.0,
                    "elevation": 89.5,
                    "footprint": [
                        {
                            "lat": -33.834505,
                            "lng": 151.255665
                        },
                        {
                            "lat": -33.834418,
                            "lng": 151.255824
                        },
                        {
                            "lat": -33.83447,
                            "lng": 151.255865
                        },
                        {
                            "lat": -33.834557,
                            "lng": 151.255706
                        },
                        {
                            "lat": -33.834505,
                            "lng": 151.255665
                        }
                    ]
                },
                {
                    "height": 3.0,
                    "elevation": 90.5,
                    "footprint": [
                        {
                            "lat": -33.83465,
                            "lng": 151.255513
                        },
                        {
                            "lat": -33.834601,
                            "lng": 151.255597
                        },
                        {
                            "lat": -33.834622,
                            "lng": 151.255615
                        },
                        {
                            "lat": -33.834628,
                            "lng": 151.255604
                        },
                        {
                            "lat": -33.834645,
                            "lng": 151.255619
                        },
                        {
                            "lat": -33.834688,
                            "lng": 151.255546
                        },
                        {
                            "lat": -33.83465,
                            "lng": 151.255513
                        }
                    ]
                }
            ]
        },
        "northWest": {
            "md": 0.95,
            "points": [
                {
                    "z": 5.0,
                    "terrain": {
                        "category": 3.0,
                        "mzcat": 0.83,
                        "zones": [
                            {
                                "extent": 100.0,
                                "category": 2.5
                            },
                            {
                                "extent": 600.0,
                                "category": 3.0
                            }
                        ]
                    },
                    "shielding": {
                        "ns": 0.0,
                        "hs": 0.0,
                        "bs": 0.0,
                        "ms": 1.0
                    },
                    "topography": {
                        "critical": "NORTH NORTH WEST",
                        "type": "RIDGE",
                        "h": 87.0,
                        "lu": 254.44,
                        "x": -20.0,
                        "upwindSlope": 0.171,
                        "mh": 1.2433,
                        "mlee": 1.0,
                        "mel": 1.0,
                        "mt": 1.2433,
                        "comment": null
                    }
                }
            ],
            "structures": [
                {
                    "height": 3.0,
                    "elevation": 79.5,
                    "footprint": [
                        {
                            "lat": -33.833895,
                            "lng": 151.255355
                        },
                        {
                            "lat": -33.833922,
                            "lng": 151.255213
                        },
                        {
                            "lat": -33.833993,
                            "lng": 151.255229
                        },
                        {
                            "lat": -33.833967,
                            "lng": 151.255371
                        },
                        {
                            "lat": -33.833895,
                            "lng": 151.255355
                        }
                    ]
                }
            ]
        }
    },
    "elevationData": null,
    "version": "2.0.0.0"
}

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