Aviation API
10 Graphical NZ Significant Weather (GNZSIGWX) GeoJSON
This product provides the forecast information contained in the Graphical New Zealand Significant Weather Chart (GNZSIGWX) in a GeoJSON format, which is GIS compatible. This enables the product to be used by customers as an overlay on a map within a browser, mobile or tablet application.
There is a style document that may be applied to the returned GeoJSON data. The style document can be retrieved from the following URL ``https://api.metservice.com/aviation/assets/style/json/gnzsigwx-nzzc-style.json``.
## **10.1 Latest for a Flight Level Range**
Request the latest GNZSIGWX GeoJSON data for a specific flight level range.
### 10.1.1 API Call:
```
GET /aviation/gnzsigwx/{flightlevel}
```
### 10.1.2 Path Parameter:
|Path Parameter|Example|Description|
|---|---|---|
|**flightlevel**|fl250|A supported flight level: fl100, fl250, fl410.<br><br>This parameter is **Mandatory**.|
### 10.1.3 Example:
This example will return the GNZSIGWX GeoJSON data for flight level range SFC-FL250.
```
GET /aviation/gnzsigwx/fl250
```
### 10.1.4 API Response:
```json
{
"version": "1.0",
"issue-time": "2023-03-20T00:33:19Z",
"path": "/aviation/api/aviation/gnzsigwx/fl250",
"response": [
{
"features": [
{
"geometry": {
"coordinates": [
[
[
[
173.257,
-43.02
],
[
173.025,
-43.137
],
[
172.899,
-43.25
],
[
172.865,
-43.314
],
[
172.845,
-43.379
],
[
172.882,
-43.477
],
[
172.971,
-43.562
],
[
173.06,
-43.599
],
[
173.151,
-43.644
],
[
173.206,
-43.729
],
[
173.206,
-43.826
],
[
173.16,
-43.896
],
[
173.088,
-43.956
],
[
173.0,
-43.981
],
[
172.891,
-43.975
],
[
172.785,
-43.942
],
[
172.668,
-43.917
],
[
172.568,
-43.917
],
[
172.47,
-43.936
],
[
172.184,
-44.008
],
[
172.004,
-44.078
],
[
171.798,
-44.141
],
[
171.629,
-44.225
],
[
171.449,
-44.295
],
[
171.343,
-44.373
],
[
171.272,
-44.469
],
[
171.226,
-44.595
],
[
171.255,
-44.813
],
[
171.172,
-44.971
],
[
171.083,
-45.098
],
[
170.914,
-45.374
],
[
170.797,
-45.85
],
[
170.786,
-45.918
],
[
170.711,
-45.978
],
[
170.6,
-46.015
],
[
170.468,
-46.053
],
[
170.188,
-46.204
],
[
169.925,
-46.449
],
[
169.701,
-46.565
],
[
169.215,
-46.749
],
[
168.38,
-47.039
],
[
167.779,
-47.266
],
[
167.705,
-47.282
],
[
167.613,
-47.315
],
[
167.467,
-47.344
],
[
167.387,
-47.321
],
[
167.319,
-47.29
],
[
167.296,
-47.243
],
[
167.296,
-47.189
],
[
167.342,
-47.119
],
[
167.387,
-47.056
],
[
167.433,
-46.986
],
[
167.559,
-46.753
],
[
167.605,
-46.659
],
[
167.605,
-46.565
],
[
167.513,
-46.449
],
[
167.353,
-46.36
],
[
167.193,
-46.33
],
[
167.035,
-46.315
],
[
166.761,
-46.275
],
[
166.532,
-46.188
],
[
166.418,
-46.061
],
[
166.372,
-45.902
],
[
166.418,
-45.705
],
[
166.543,
-45.537
],
[
166.749,
-45.314
],
[
166.967,
-45.072
],
[
167.356,
-44.742
],
[
167.682,
-44.609
],
[
168.637,
-44.26
],
[
168.981,
-44.129
],
[
169.513,
-43.942
],
[
169.676,
-43.866
],
[
170.148,
-43.553
],
[
170.428,
-43.408
],
[
170.794,
-43.202
],
[
171.074,
-42.993
],
[
171.352,
-42.815
],
[
171.601,
-42.592
],
[
171.858,
-42.394
],
[
171.97,
-42.218
],
[
172.07,
-41.97
],
[
172.15,
-41.887
],
[
172.25,
-41.836
],
[
172.362,
-41.827
],
[
172.476,
-41.844
],
[
172.642,
-41.876
],
[
172.799,
-41.902
],
[
172.98,
-41.887
],
[
173.429,
-41.861
],
[
173.609,
-41.836
],
[
173.775,
-41.844
],
[
173.875,
-41.885
],
[
173.929,
-41.964
],
[
173.964,
-42.044
],
[
173.964,
-42.125
],
[
173.912,
-42.203
],
[
173.795,
-42.383
],
[
173.643,
-42.533
],
[
173.483,
-42.765
],
[
173.383,
-42.928
],
[
173.257,
-43.02
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "STRONG DOWNDRAFTS IN LEE OF MT\n\nCLR S OF NZNV BY 21Z",
"featureType": "turbulence",
"lowerExtentFL": 0,
"lowerExtentText": "SFC",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 130,
"upperExtentText": "130"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
175.508,
-42.497
],
[
175.051,
-42.859
],
[
169.71,
-47.138
],
[
168.291,
-48.135
],
[
168.263,
-48.136
],
[
168.245,
-48.135
],
[
167.808,
-47.811
],
[
167.776,
-47.748
],
[
167.636,
-47.512
],
[
167.193,
-46.834
],
[
166.984,
-46.545
],
[
166.892,
-46.257
],
[
166.938,
-46.063
],
[
167.024,
-45.854
],
[
167.259,
-45.533
],
[
167.462,
-45.298
],
[
167.65,
-45.052
],
[
168.045,
-44.813
],
[
168.268,
-44.687
],
[
168.537,
-44.526
],
[
168.852,
-44.342
],
[
169.021,
-44.279
],
[
169.167,
-44.197
],
[
169.244,
-44.133
],
[
169.524,
-43.964
],
[
169.93,
-43.721
],
[
170.213,
-43.564
],
[
170.417,
-43.445
],
[
170.697,
-43.289
],
[
170.969,
-43.137
],
[
171.212,
-42.888
],
[
171.406,
-42.758
],
[
171.612,
-42.624
],
[
171.915,
-42.263
],
[
172.124,
-41.778
],
[
172.356,
-41.221
],
[
172.402,
-41.081
],
[
172.45,
-40.958
],
[
172.519,
-40.87
],
[
172.613,
-40.835
],
[
172.705,
-40.852
],
[
172.822,
-40.904
],
[
172.937,
-40.958
],
[
173.537,
-41.189
],
[
174.044,
-41.449
],
[
174.39,
-41.637
],
[
174.853,
-41.915
],
[
175.314,
-42.223
],
[
175.508,
-42.497
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "IN MTW\n\nCLR S OF NZNV BY 21Z",
"featureType": "mountainWaves",
"icing": {
"lowerExtentFL": 110,
"lowerExtentText": "110",
"upperExtentFL": 260,
"upperExtentText": "XXX"
},
"productKey": "GraphicalNZSigwx",
"turbulence": {
"lowerExtentFL": 130,
"lowerExtentText": "130",
"upperExtentFL": 400,
"upperExtentText": "XXX"
}
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
168.46,
-43.227
],
[
170.391,
-41.423
],
[
170.457,
-40.937
],
[
170.705,
-41.027
],
[
170.891,
-41.187
],
[
170.986,
-41.412
],
[
170.98,
-41.661
],
[
170.78,
-42.311
],
[
170.685,
-42.521
],
[
170.591,
-42.817
],
[
170.511,
-42.966
],
[
170.228,
-43.377
],
[
169.919,
-43.669
],
[
169.516,
-43.872
],
[
169.37,
-43.901
],
[
169.221,
-43.901
],
[
169.101,
-43.872
],
[
169.006,
-43.804
],
[
168.941,
-43.709
],
[
168.886,
-43.611
],
[
168.686,
-43.398
],
[
168.497,
-43.271
],
[
168.46,
-43.227
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "BECMG FM W",
"featureType": "icing",
"lowerExtentFL": 110,
"lowerExtentText": "110",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 210,
"upperExtentText": "210"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
167.608,
-47.661
],
[
165.299,
-45.916
],
[
166.798,
-44.687
],
[
167.922,
-43.717
],
[
168.051,
-43.603
],
[
168.457,
-43.231
],
[
168.537,
-43.279
],
[
168.846,
-43.572
],
[
168.983,
-43.758
],
[
169.101,
-43.993
],
[
169.147,
-44.195
],
[
169.078,
-44.377
],
[
168.869,
-44.493
],
[
168.612,
-44.593
],
[
168.125,
-44.841
],
[
167.705,
-45.104
],
[
167.473,
-45.382
],
[
167.356,
-45.709
],
[
167.356,
-46.338
],
[
167.405,
-46.722
],
[
167.565,
-46.961
],
[
167.705,
-47.229
],
[
167.705,
-47.497
],
[
167.613,
-47.653
],
[
167.608,
-47.661
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "",
"featureType": "cumulonimbus",
"frequency": "isolatedEmbedded",
"lowerExtentFL": 20,
"lowerExtentText": "2000FT",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 380,
"upperExtentText": "XXX"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
176.572,
-40.614
],
[
176.355,
-40.872
],
[
176.123,
-41.198
],
[
175.869,
-41.449
],
[
175.651,
-41.56
],
[
175.411,
-41.62
],
[
175.154,
-41.612
],
[
174.925,
-41.601
],
[
174.71,
-41.629
],
[
174.304,
-41.844
],
[
174.164,
-41.889
],
[
174.084,
-41.949
],
[
173.984,
-41.989
],
[
173.938,
-41.949
],
[
173.892,
-41.906
],
[
173.843,
-41.868
],
[
173.752,
-41.832
],
[
173.657,
-41.821
],
[
173.306,
-41.878
],
[
173.243,
-41.885
],
[
172.879,
-41.889
],
[
172.599,
-41.861
],
[
172.502,
-41.842
],
[
172.407,
-41.812
],
[
172.299,
-41.791
],
[
172.247,
-41.751
],
[
172.247,
-41.68
],
[
172.273,
-41.601
],
[
172.313,
-41.509
],
[
172.353,
-41.419
],
[
172.396,
-41.329
],
[
172.407,
-41.157
],
[
172.396,
-41.004
],
[
172.422,
-40.679
],
[
172.462,
-40.586
],
[
172.542,
-40.514
],
[
172.691,
-40.464
],
[
172.879,
-40.464
],
[
173.065,
-40.494
],
[
173.323,
-40.603
],
[
173.494,
-40.655
],
[
173.672,
-40.679
],
[
173.861,
-40.666
],
[
174.009,
-40.679
],
[
174.141,
-40.72
],
[
174.21,
-40.772
],
[
174.287,
-40.85
],
[
174.373,
-40.909
],
[
174.561,
-40.956
],
[
174.793,
-40.984
],
[
174.933,
-40.96
],
[
175.076,
-40.915
],
[
175.288,
-40.77
],
[
175.46,
-40.579
],
[
175.628,
-40.355
],
[
175.952,
-40.001
],
[
176.032,
-39.882
],
[
176.123,
-39.775
],
[
176.232,
-39.704
],
[
176.495,
-39.764
],
[
176.758,
-39.858
],
[
176.864,
-39.931
],
[
176.941,
-40.001
],
[
176.99,
-40.084
],
[
176.958,
-40.202
],
[
176.864,
-40.32
],
[
176.741,
-40.438
],
[
176.572,
-40.614
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "STRONG DOWNDRAFTS IN LEE OF MT",
"featureType": "turbulence",
"lowerExtentFL": 0,
"lowerExtentText": "SFC",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 80,
"upperExtentText": "8000FT"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
177.343,
-37.452
],
"type": "Point"
},
"properties": {
"alertLevel2Plus": true,
"featureType": "volcano",
"productKey": "GraphicalNZSigwx",
"volcanoName": "WHAKAARI - WHITE ISLAND"
},
"type": "Feature"
}
],
"metadata": {
"alerts": [
"Volcano Alert Level 2+, see NOTAM for VHZ information"
],
"information": [
"Chart valid for NZZC FIR only",
"Heights in FL unless otherwise specified",
"The use of CB implies severe turbulence and icing"
],
"isAmendment": true,
"issueTime": "2023-03-19T18:20:01Z",
"notes": [
"Please refer to GSM for any SIGMET information"
],
"referenceVersion": "2022-12-09",
"remarks": "LOWERED MTW TURB BASE SOUTH ISLAND",
"validFromTime": "2023-03-19T15:00:00Z",
"validToTime": "2023-03-19T21:00:00Z",
"validUpToFL": 250,
"version": "2022-12-09"
},
"type": "FeatureCollection"
},
{
"features": [
{
"geometry": {
"coordinates": [
[
[
[
170.777,
-45.86
],
[
170.74,
-45.944
],
[
170.654,
-45.996
],
[
170.365,
-46.107
],
[
170.179,
-46.23
],
[
169.99,
-46.364
],
[
169.804,
-46.52
],
[
169.533,
-46.667
],
[
169.244,
-46.757
],
[
168.955,
-46.828
],
[
168.663,
-46.826
],
[
168.489,
-46.773
],
[
168.314,
-46.706
],
[
167.771,
-46.48
],
[
167.344,
-46.346
],
[
167.015,
-46.319
],
[
166.707,
-46.265
],
[
166.492,
-46.144
],
[
166.415,
-46.037
],
[
166.375,
-45.902
],
[
166.415,
-45.713
],
[
166.532,
-45.525
],
[
166.958,
-45.074
],
[
167.133,
-44.89
],
[
167.359,
-44.746
],
[
167.496,
-44.693
],
[
167.636,
-44.585
],
[
167.745,
-44.44
],
[
167.862,
-44.279
],
[
168.111,
-44.117
],
[
168.294,
-44.032
],
[
168.56,
-43.948
],
[
168.84,
-43.847
],
[
169.089,
-43.707
],
[
169.387,
-43.56
],
[
169.647,
-43.427
],
[
169.893,
-43.302
],
[
170.065,
-43.2
],
[
170.291,
-43.05
],
[
170.462,
-42.981
],
[
170.677,
-42.861
],
[
170.883,
-42.681
],
[
171.0,
-42.554
],
[
171.117,
-42.396
],
[
171.16,
-42.301
],
[
171.226,
-42.22
],
[
171.355,
-42.148
],
[
171.515,
-42.102
],
[
171.741,
-42.061
],
[
172.01,
-41.972
],
[
172.127,
-41.917
],
[
172.247,
-41.861
],
[
172.365,
-41.829
],
[
172.505,
-41.844
],
[
172.645,
-41.876
],
[
172.805,
-41.902
],
[
172.98,
-41.887
],
[
173.429,
-41.861
],
[
173.609,
-41.836
],
[
173.775,
-41.844
],
[
173.878,
-41.887
],
[
173.932,
-41.961
],
[
173.975,
-42.038
],
[
173.932,
-42.165
],
[
173.846,
-42.278
],
[
173.683,
-42.396
],
[
173.566,
-42.571
],
[
173.394,
-42.832
],
[
173.32,
-42.926
],
[
173.234,
-43.012
],
[
173.06,
-43.1
],
[
172.879,
-43.194
],
[
172.814,
-43.262
],
[
172.771,
-43.341
],
[
172.759,
-43.418
],
[
172.794,
-43.483
],
[
172.857,
-43.528
],
[
172.954,
-43.56
],
[
173.051,
-43.599
],
[
173.137,
-43.661
],
[
173.18,
-43.731
],
[
173.168,
-43.8
],
[
173.125,
-43.861
],
[
173.051,
-43.917
],
[
172.942,
-43.948
],
[
172.837,
-43.954
],
[
172.665,
-43.94
],
[
172.493,
-43.923
],
[
172.31,
-43.948
],
[
172.136,
-44.001
],
[
171.784,
-44.147
],
[
171.546,
-44.264
],
[
171.375,
-44.393
],
[
171.289,
-44.51
],
[
171.235,
-44.624
],
[
171.226,
-44.738
],
[
171.215,
-44.851
],
[
171.14,
-44.983
],
[
171.049,
-45.112
],
[
171.0,
-45.304
],
[
170.909,
-45.442
],
[
170.814,
-45.579
],
[
170.786,
-45.763
],
[
170.777,
-45.86
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "STRONG DOWNDRAFTS IN LEE OF MT\n\nCLR S OF NZMO BY 02Z",
"featureType": "turbulence",
"lowerExtentFL": 0,
"lowerExtentText": "SFC",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 130,
"upperExtentText": "130"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
175.508,
-42.497
],
[
175.051,
-42.859
],
[
169.87,
-47.013
],
[
169.796,
-47.0
],
[
169.556,
-46.926
],
[
169.244,
-46.826
],
[
168.88,
-46.704
],
[
168.597,
-46.612
],
[
168.234,
-46.512
],
[
168.005,
-46.447
],
[
167.682,
-46.334
],
[
167.482,
-46.251
],
[
167.319,
-46.148
],
[
167.239,
-46.017
],
[
167.224,
-45.878
],
[
167.347,
-45.549
],
[
167.63,
-45.235
],
[
167.696,
-45.161
],
[
168.114,
-44.827
],
[
168.483,
-44.597
],
[
168.706,
-44.454
],
[
168.929,
-44.35
],
[
169.198,
-44.18
],
[
169.693,
-43.915
],
[
169.962,
-43.754
],
[
170.142,
-43.657
],
[
170.365,
-43.518
],
[
170.591,
-43.396
],
[
170.894,
-43.233
],
[
171.106,
-43.11
],
[
171.466,
-42.905
],
[
171.689,
-42.765
],
[
171.87,
-42.641
],
[
172.027,
-42.442
],
[
172.139,
-42.244
],
[
172.273,
-41.661
],
[
172.319,
-41.408
],
[
172.396,
-41.07
],
[
172.442,
-40.969
],
[
172.508,
-40.902
],
[
172.599,
-40.876
],
[
172.699,
-40.893
],
[
172.822,
-40.917
],
[
172.934,
-40.96
],
[
173.54,
-41.189
],
[
174.044,
-41.449
],
[
174.39,
-41.637
],
[
174.853,
-41.915
],
[
175.314,
-42.223
],
[
175.508,
-42.497
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "IN MTW\n\nCLR S OF NZMO BY 02Z",
"featureType": "mountainWaves",
"icing": {
"lowerExtentFL": 110,
"lowerExtentText": "110",
"upperExtentFL": 270,
"upperExtentText": "XXX"
},
"productKey": "GraphicalNZSigwx",
"turbulence": {
"lowerExtentFL": 130,
"lowerExtentText": "130",
"upperExtentFL": 410,
"upperExtentText": "XXX"
}
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
169.204,
-42.499
],
[
170.391,
-41.423
],
[
170.394,
-41.144
],
[
170.439,
-40.865
],
[
170.517,
-40.59
],
[
170.517,
-40.588
],
[
170.74,
-40.605
],
[
171.089,
-40.718
],
[
171.532,
-40.924
],
[
171.801,
-41.045
],
[
172.03,
-41.165
],
[
172.287,
-41.419
],
[
172.436,
-41.742
],
[
172.476,
-41.942
],
[
172.436,
-42.131
],
[
172.282,
-42.345
],
[
171.927,
-42.601
],
[
171.721,
-42.744
],
[
171.486,
-42.888
],
[
171.209,
-43.052
],
[
171.054,
-43.148
],
[
170.871,
-43.262
],
[
170.771,
-43.304
],
[
170.674,
-43.354
],
[
170.651,
-43.366
],
[
170.634,
-43.383
],
[
170.614,
-43.393
],
[
170.597,
-43.398
],
[
170.58,
-43.391
],
[
170.565,
-43.375
],
[
170.551,
-43.356
],
[
170.505,
-43.233
],
[
170.457,
-43.166
],
[
170.399,
-43.127
],
[
170.302,
-43.058
],
[
170.205,
-42.999
],
[
170.108,
-42.96
],
[
169.962,
-42.888
],
[
169.87,
-42.84
],
[
169.727,
-42.758
],
[
169.544,
-42.662
],
[
169.244,
-42.531
],
[
169.204,
-42.499
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "",
"featureType": "icing",
"lowerExtentFL": 90,
"lowerExtentText": "9000FT",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 220,
"upperExtentText": "FL220"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
166.981,
-44.469
],
[
169.138,
-42.558
],
[
169.224,
-42.569
],
[
169.418,
-42.628
],
[
169.79,
-42.807
],
[
170.131,
-42.972
],
[
170.371,
-43.114
],
[
170.502,
-43.244
],
[
170.565,
-43.396
],
[
170.534,
-43.514
],
[
170.437,
-43.607
],
[
170.308,
-43.7
],
[
169.916,
-43.874
],
[
169.272,
-44.168
],
[
169.038,
-44.295
],
[
168.806,
-44.369
],
[
168.431,
-44.536
],
[
168.308,
-44.622
],
[
168.18,
-44.677
],
[
168.048,
-44.677
],
[
167.917,
-44.65
],
[
167.693,
-44.583
],
[
167.339,
-44.556
],
[
167.19,
-44.571
],
[
167.058,
-44.524
],
[
166.981,
-44.469
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "",
"featureType": "cumulonimbus",
"frequency": "frequentEmbedded",
"lowerExtentFL": 20,
"lowerExtentText": "2000FT",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 390,
"upperExtentText": "XXX"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
174.006,
-40.679
],
[
174.141,
-40.72
],
[
174.21,
-40.772
],
[
174.287,
-40.85
],
[
174.373,
-40.909
],
[
174.561,
-40.956
],
[
174.793,
-40.984
],
[
174.933,
-40.96
],
[
175.073,
-40.915
],
[
175.288,
-40.77
],
[
175.465,
-40.575
],
[
175.625,
-40.362
],
[
175.909,
-40.104
],
[
176.097,
-40.073
],
[
176.312,
-40.115
],
[
176.541,
-40.196
],
[
176.635,
-40.218
],
[
176.715,
-40.268
],
[
176.755,
-40.34
],
[
176.73,
-40.433
],
[
176.661,
-40.525
],
[
176.567,
-40.616
],
[
176.486,
-40.709
],
[
176.352,
-40.872
],
[
176.123,
-41.198
],
[
175.869,
-41.449
],
[
175.651,
-41.56
],
[
175.411,
-41.62
],
[
175.154,
-41.61
],
[
174.925,
-41.601
],
[
174.707,
-41.629
],
[
174.304,
-41.844
],
[
174.164,
-41.889
],
[
174.087,
-41.949
],
[
173.984,
-41.989
],
[
173.892,
-41.908
],
[
173.843,
-41.868
],
[
173.752,
-41.832
],
[
173.657,
-41.821
],
[
173.306,
-41.878
],
[
173.246,
-41.885
],
[
172.879,
-41.889
],
[
172.599,
-41.861
],
[
172.502,
-41.842
],
[
172.407,
-41.812
],
[
172.353,
-41.802
],
[
172.302,
-41.791
],
[
172.247,
-41.751
],
[
172.247,
-41.68
],
[
172.273,
-41.601
],
[
172.313,
-41.509
],
[
172.353,
-41.419
],
[
172.396,
-41.329
],
[
172.407,
-41.157
],
[
172.396,
-41.004
],
[
172.422,
-40.679
],
[
172.462,
-40.586
],
[
172.542,
-40.514
],
[
172.691,
-40.464
],
[
172.879,
-40.464
],
[
173.065,
-40.494
],
[
173.323,
-40.601
],
[
173.494,
-40.655
],
[
173.672,
-40.679
],
[
173.861,
-40.666
],
[
174.006,
-40.679
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "STRONG DOWNDRAFTS IN LEE OF MT\n\nGRADUALLY INTSF",
"featureType": "turbulence",
"lowerExtentFL": 0,
"lowerExtentText": "SFC",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 80,
"upperExtentText": "8000FT"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
170.877,
-46.232
],
[
169.71,
-47.138
],
[
168.268,
-48.15
],
[
165.299,
-45.916
],
[
166.798,
-44.687
],
[
167.645,
-43.958
],
[
167.931,
-44.143
],
[
168.303,
-44.363
],
[
168.546,
-44.524
],
[
168.886,
-44.801
],
[
169.081,
-44.949
],
[
169.37,
-45.132
],
[
169.71,
-45.36
],
[
169.905,
-45.497
],
[
170.193,
-45.689
],
[
170.582,
-46.013
],
[
170.877,
-46.232
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "",
"featureType": "clearAirTurbulence",
"lowerExtentFL": 120,
"lowerExtentText": "120",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 320,
"upperExtentText": "XXX"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
170.631,
-46.36
],
[
168.266,
-48.15
],
[
165.474,
-46.049
],
[
165.502,
-46.045
],
[
165.662,
-46.065
],
[
165.811,
-46.101
],
[
166.134,
-46.186
],
[
166.392,
-46.269
],
[
166.661,
-46.297
],
[
166.85,
-46.259
],
[
167.024,
-46.186
],
[
167.467,
-45.99
],
[
167.656,
-45.82
],
[
167.791,
-45.615
],
[
167.951,
-45.501
],
[
168.168,
-45.444
],
[
168.357,
-45.454
],
[
168.546,
-45.501
],
[
169.055,
-45.699
],
[
169.367,
-45.822
],
[
169.681,
-45.964
],
[
169.996,
-46.071
],
[
170.265,
-46.198
],
[
170.365,
-46.259
],
[
170.488,
-46.313
],
[
170.591,
-46.344
],
[
170.631,
-46.36
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "",
"featureType": "cumulonimbus",
"frequency": "isolatedEmbedded",
"lowerExtentFL": 20,
"lowerExtentText": "2000FT",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 350,
"upperExtentText": "XXX"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
177.343,
-37.452
],
"type": "Point"
},
"properties": {
"alertLevel2Plus": true,
"featureType": "volcano",
"productKey": "GraphicalNZSigwx",
"volcanoName": "WHAKAARI - WHITE ISLAND"
},
"type": "Feature"
}
],
"metadata": {
"alerts": [
"Volcano Alert Level 2+, see NOTAM for VHZ information"
],
"information": [
"Chart valid for NZZC FIR only",
"Heights in FL unless otherwise specified",
"The use of CB implies severe turbulence and icing"
],
"isAmendment": true,
"issueTime": "2023-03-20T00:21:53Z",
"notes": [
"Please refer to GSM for any SIGMET information"
],
"referenceVersion": "2022-12-09",
"remarks": "updated mtw icing height, cb areas South Island ",
"validFromTime": "2023-03-19T21:00:00Z",
"validToTime": "2023-03-20T03:00:00Z",
"validUpToFL": 250,
"version": "2022-12-09"
},
"type": "FeatureCollection"
},
{
"features": [
{
"geometry": {
"coordinates": [
[
[
[
170.328,
-46.119
],
[
170.188,
-46.236
],
[
170.122,
-46.313
],
[
170.056,
-46.384
],
[
169.973,
-46.429
],
[
169.879,
-46.461
],
[
169.767,
-46.449
],
[
169.647,
-46.409
],
[
169.367,
-46.281
],
[
169.178,
-46.21
],
[
168.795,
-46.061
],
[
168.72,
-46.029
],
[
168.411,
-45.924
],
[
168.011,
-45.775
],
[
167.602,
-45.633
],
[
167.359,
-45.539
],
[
167.118,
-45.378
],
[
167.01,
-45.302
],
[
166.93,
-45.217
],
[
166.915,
-45.151
],
[
166.955,
-45.056
],
[
167.05,
-44.971
],
[
167.184,
-44.884
],
[
167.319,
-44.809
],
[
167.602,
-44.569
],
[
167.765,
-44.416
],
[
168.194,
-44.078
],
[
168.477,
-43.942
],
[
168.72,
-43.913
],
[
168.921,
-43.835
],
[
169.084,
-43.709
],
[
169.232,
-43.632
],
[
169.393,
-43.564
],
[
169.647,
-43.427
],
[
169.893,
-43.302
],
[
170.065,
-43.2
],
[
170.291,
-43.05
],
[
170.462,
-42.981
],
[
170.677,
-42.861
],
[
170.883,
-42.681
],
[
171.0,
-42.554
],
[
171.117,
-42.396
],
[
171.16,
-42.301
],
[
171.226,
-42.22
],
[
171.355,
-42.148
],
[
171.515,
-42.102
],
[
171.741,
-42.061
],
[
172.01,
-41.972
],
[
172.127,
-41.917
],
[
172.247,
-41.861
],
[
172.365,
-41.829
],
[
172.505,
-41.844
],
[
172.645,
-41.876
],
[
172.805,
-41.902
],
[
172.98,
-41.887
],
[
173.429,
-41.861
],
[
173.609,
-41.836
],
[
173.775,
-41.844
],
[
173.878,
-41.887
],
[
173.932,
-41.961
],
[
173.975,
-42.038
],
[
173.932,
-42.165
],
[
173.846,
-42.278
],
[
173.683,
-42.396
],
[
173.566,
-42.571
],
[
173.394,
-42.832
],
[
173.32,
-42.926
],
[
173.234,
-43.012
],
[
173.06,
-43.1
],
[
172.879,
-43.194
],
[
172.814,
-43.262
],
[
172.771,
-43.341
],
[
172.759,
-43.418
],
[
172.794,
-43.483
],
[
172.857,
-43.528
],
[
172.954,
-43.56
],
[
173.051,
-43.599
],
[
173.137,
-43.661
],
[
173.18,
-43.731
],
[
173.168,
-43.8
],
[
173.125,
-43.861
],
[
173.051,
-43.917
],
[
172.942,
-43.948
],
[
172.837,
-43.954
],
[
172.665,
-43.94
],
[
172.493,
-43.923
],
[
172.31,
-43.948
],
[
172.136,
-44.001
],
[
171.784,
-44.147
],
[
171.544,
-44.262
],
[
171.375,
-44.395
],
[
171.28,
-44.503
],
[
171.235,
-44.622
],
[
171.243,
-44.768
],
[
171.215,
-44.876
],
[
171.16,
-44.981
],
[
171.112,
-45.074
],
[
171.02,
-45.251
],
[
170.897,
-45.448
],
[
170.794,
-45.585
],
[
170.757,
-45.737
],
[
170.768,
-45.806
],
[
170.768,
-45.872
],
[
170.748,
-45.924
],
[
170.691,
-45.95
],
[
170.608,
-45.964
],
[
170.514,
-45.97
],
[
170.328,
-46.119
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "STRONG DOWNDRAFTS IN LEE OF MT\n\nCLR S OF NZDN BY 06Z",
"featureType": "turbulence",
"lowerExtentFL": 0,
"lowerExtentText": "SFC",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 130,
"upperExtentText": "130"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
175.909,
-42.18
],
[
175.051,
-42.859
],
[
169.87,
-47.013
],
[
169.796,
-47.0
],
[
169.556,
-46.926
],
[
169.244,
-46.826
],
[
168.88,
-46.704
],
[
168.597,
-46.612
],
[
168.234,
-46.512
],
[
168.005,
-46.447
],
[
167.682,
-46.334
],
[
167.482,
-46.251
],
[
167.319,
-46.148
],
[
167.239,
-46.017
],
[
167.224,
-45.878
],
[
167.347,
-45.549
],
[
167.63,
-45.235
],
[
167.696,
-45.161
],
[
168.114,
-44.827
],
[
168.483,
-44.597
],
[
168.706,
-44.454
],
[
168.929,
-44.35
],
[
169.198,
-44.18
],
[
169.693,
-43.915
],
[
169.962,
-43.754
],
[
170.142,
-43.657
],
[
170.365,
-43.518
],
[
170.591,
-43.396
],
[
170.894,
-43.233
],
[
171.106,
-43.11
],
[
171.466,
-42.905
],
[
171.689,
-42.765
],
[
171.87,
-42.641
],
[
172.027,
-42.442
],
[
172.139,
-42.244
],
[
172.216,
-41.917
],
[
172.216,
-41.812
],
[
172.427,
-41.027
],
[
172.519,
-40.642
],
[
172.705,
-40.501
],
[
172.94,
-40.429
],
[
173.194,
-40.464
],
[
173.449,
-40.57
],
[
173.683,
-40.694
],
[
173.961,
-40.852
],
[
174.567,
-41.256
],
[
175.311,
-41.691
],
[
175.588,
-41.829
],
[
175.823,
-41.987
],
[
175.909,
-42.18
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "IN MTW\n\nCLR S OF NZDN BY 06Z",
"featureType": "mountainWaves",
"icing": {
"lowerExtentFL": 110,
"lowerExtentText": "110",
"upperExtentFL": 260,
"upperExtentText": "XXX"
},
"productKey": "GraphicalNZSigwx",
"turbulence": {
"lowerExtentFL": 130,
"lowerExtentText": "130",
"upperExtentFL": 410,
"upperExtentText": "XXX"
}
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
167.23,
-44.315
],
[
167.922,
-43.717
],
[
168.051,
-43.603
],
[
170.391,
-41.423
],
[
170.485,
-40.731
],
[
170.545,
-40.59
],
[
170.74,
-40.607
],
[
171.089,
-40.718
],
[
171.801,
-41.045
],
[
172.03,
-41.165
],
[
172.287,
-41.419
],
[
172.436,
-41.742
],
[
172.476,
-41.942
],
[
172.436,
-42.131
],
[
172.284,
-42.343
],
[
171.924,
-42.601
],
[
171.521,
-42.838
],
[
171.298,
-42.978
],
[
171.117,
-43.102
],
[
170.937,
-43.2
],
[
170.668,
-43.348
],
[
170.311,
-43.551
],
[
170.008,
-43.704
],
[
169.693,
-43.89
],
[
169.47,
-44.012
],
[
169.221,
-44.158
],
[
168.829,
-44.397
],
[
168.514,
-44.597
],
[
168.2,
-44.774
],
[
168.134,
-44.813
],
[
168.065,
-44.837
],
[
167.988,
-44.829
],
[
167.899,
-44.796
],
[
167.819,
-44.742
],
[
167.742,
-44.679
],
[
167.281,
-44.367
],
[
167.23,
-44.315
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "CLR BY 09Z",
"featureType": "icing",
"lowerExtentFL": 90,
"lowerExtentText": "9000FT",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 220,
"upperExtentText": "FL220"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
165.468,
-45.779
],
[
166.798,
-44.687
],
[
167.922,
-43.717
],
[
168.051,
-43.603
],
[
170.391,
-41.423
],
[
170.485,
-40.731
],
[
170.763,
-40.067
],
[
170.777,
-40.047
],
[
170.889,
-40.104
],
[
171.049,
-40.183
],
[
171.235,
-40.353
],
[
171.403,
-40.503
],
[
171.552,
-40.61
],
[
171.721,
-40.772
],
[
171.812,
-40.857
],
[
172.001,
-40.991
],
[
172.084,
-41.103
],
[
172.15,
-41.223
],
[
172.233,
-41.419
],
[
172.29,
-41.616
],
[
172.262,
-41.859
],
[
172.233,
-42.006
],
[
172.262,
-42.104
],
[
172.319,
-42.199
],
[
172.373,
-42.394
],
[
172.31,
-42.71
],
[
172.282,
-42.792
],
[
172.179,
-43.018
],
[
171.89,
-43.256
],
[
171.795,
-43.325
],
[
171.458,
-43.528
],
[
171.329,
-43.624
],
[
171.177,
-43.698
],
[
171.029,
-43.746
],
[
170.843,
-43.839
],
[
170.608,
-43.948
],
[
170.374,
-44.049
],
[
170.233,
-44.121
],
[
170.002,
-44.229
],
[
169.813,
-44.303
],
[
169.627,
-44.383
],
[
169.235,
-44.522
],
[
168.869,
-44.577
],
[
168.683,
-44.609
],
[
168.497,
-44.662
],
[
168.217,
-44.776
],
[
168.077,
-44.841
],
[
167.759,
-45.054
],
[
167.413,
-45.402
],
[
167.221,
-45.631
],
[
167.093,
-45.902
],
[
166.978,
-46.148
],
[
166.881,
-46.228
],
[
166.769,
-46.237
],
[
166.624,
-46.228
],
[
166.495,
-46.182
],
[
166.349,
-46.127
],
[
165.96,
-45.958
],
[
165.622,
-45.856
],
[
165.468,
-45.779
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "BECMG FM 05Z",
"featureType": "cumulonimbus",
"frequency": "isolatedEmbedded",
"lowerExtentFL": 20,
"lowerExtentText": "2000FT",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 360,
"upperExtentText": "XXX"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
174.006,
-40.679
],
[
174.141,
-40.72
],
[
174.21,
-40.772
],
[
174.287,
-40.85
],
[
174.373,
-40.909
],
[
174.561,
-40.956
],
[
174.793,
-40.984
],
[
174.933,
-40.96
],
[
175.073,
-40.915
],
[
175.288,
-40.77
],
[
175.465,
-40.575
],
[
175.625,
-40.362
],
[
175.909,
-40.104
],
[
176.097,
-40.073
],
[
176.312,
-40.115
],
[
176.541,
-40.196
],
[
176.635,
-40.218
],
[
176.715,
-40.268
],
[
176.755,
-40.34
],
[
176.73,
-40.433
],
[
176.661,
-40.525
],
[
176.567,
-40.616
],
[
176.486,
-40.709
],
[
176.352,
-40.872
],
[
176.123,
-41.198
],
[
175.869,
-41.449
],
[
175.651,
-41.56
],
[
175.411,
-41.62
],
[
175.154,
-41.61
],
[
174.925,
-41.601
],
[
174.707,
-41.629
],
[
174.304,
-41.844
],
[
174.164,
-41.889
],
[
174.087,
-41.949
],
[
173.984,
-41.989
],
[
173.892,
-41.908
],
[
173.843,
-41.868
],
[
173.752,
-41.832
],
[
173.657,
-41.821
],
[
173.306,
-41.878
],
[
173.246,
-41.885
],
[
172.879,
-41.889
],
[
172.599,
-41.861
],
[
172.502,
-41.842
],
[
172.407,
-41.812
],
[
172.353,
-41.802
],
[
172.302,
-41.791
],
[
172.247,
-41.751
],
[
172.247,
-41.68
],
[
172.273,
-41.601
],
[
172.313,
-41.509
],
[
172.353,
-41.419
],
[
172.396,
-41.329
],
[
172.407,
-41.157
],
[
172.396,
-41.004
],
[
172.422,
-40.679
],
[
172.462,
-40.586
],
[
172.542,
-40.514
],
[
172.691,
-40.464
],
[
172.879,
-40.464
],
[
173.065,
-40.494
],
[
173.323,
-40.601
],
[
173.494,
-40.655
],
[
173.672,
-40.679
],
[
173.861,
-40.666
],
[
174.006,
-40.679
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "STRONG DOWNDRAFTS IN LEE OF MT\n",
"featureType": "turbulence",
"lowerExtentFL": 0,
"lowerExtentText": "SFC",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 80,
"upperExtentText": "8000FT"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
170.877,
-46.232
],
[
169.71,
-47.138
],
[
168.268,
-48.15
],
[
165.299,
-45.916
],
[
166.798,
-44.687
],
[
167.645,
-43.958
],
[
167.931,
-44.143
],
[
168.303,
-44.363
],
[
168.546,
-44.524
],
[
168.886,
-44.801
],
[
169.081,
-44.949
],
[
169.37,
-45.132
],
[
169.71,
-45.36
],
[
169.905,
-45.497
],
[
170.193,
-45.689
],
[
170.582,
-46.013
],
[
170.877,
-46.232
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "MOV E, CLR BY 09Z",
"featureType": "clearAirTurbulence",
"lowerExtentFL": 120,
"lowerExtentText": "120",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 320,
"upperExtentText": "XXX"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
170.677,
-46.388
],
[
169.896,
-46.994
],
[
169.616,
-46.982
],
[
169.132,
-46.838
],
[
168.898,
-46.753
],
[
168.626,
-46.677
],
[
168.357,
-46.585
],
[
168.045,
-46.39
],
[
167.819,
-46.283
],
[
167.662,
-46.142
],
[
167.608,
-46.002
],
[
167.619,
-45.854
],
[
167.719,
-45.667
],
[
167.942,
-45.501
],
[
168.168,
-45.446
],
[
168.326,
-45.438
],
[
168.483,
-45.47
],
[
168.549,
-45.501
],
[
169.055,
-45.697
],
[
169.367,
-45.822
],
[
169.681,
-45.964
],
[
169.996,
-46.073
],
[
170.265,
-46.196
],
[
170.365,
-46.259
],
[
170.488,
-46.313
],
[
170.591,
-46.344
],
[
170.668,
-46.376
],
[
170.677,
-46.388
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "",
"featureType": "cumulonimbus",
"frequency": "isolatedEmbedded",
"lowerExtentFL": 20,
"lowerExtentText": "2000FT",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 350,
"upperExtentText": "XXX"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
[
[
[
176.172,
-40.084
],
[
176.072,
-40.084
],
[
175.986,
-40.049
],
[
175.923,
-40.001
],
[
175.877,
-39.924
],
[
175.86,
-39.828
],
[
175.823,
-39.649
],
[
175.691,
-39.48
],
[
175.605,
-39.427
],
[
175.525,
-39.367
],
[
175.488,
-39.312
],
[
175.48,
-39.252
],
[
175.534,
-39.185
],
[
175.62,
-39.137
],
[
175.737,
-39.101
],
[
175.854,
-39.083
],
[
176.103,
-39.003
],
[
176.415,
-38.859
],
[
176.592,
-38.785
],
[
176.732,
-38.725
],
[
176.921,
-38.633
],
[
177.107,
-38.537
],
[
177.293,
-38.389
],
[
177.365,
-38.342
],
[
177.551,
-38.201
],
[
177.825,
-37.949
],
[
177.917,
-37.856
],
[
178.105,
-37.684
],
[
178.206,
-37.634
],
[
178.251,
-37.623
],
[
178.291,
-37.63
],
[
178.323,
-37.659
],
[
178.346,
-37.702
],
[
178.354,
-37.752
],
[
178.354,
-37.852
],
[
178.331,
-37.944
],
[
178.277,
-38.016
],
[
178.151,
-38.165
],
[
177.911,
-38.378
],
[
177.831,
-38.463
],
[
177.599,
-38.604
],
[
177.41,
-38.714
],
[
177.27,
-38.781
],
[
177.084,
-38.89
],
[
176.99,
-38.961
],
[
176.858,
-39.101
],
[
176.695,
-39.287
],
[
176.578,
-39.48
],
[
176.469,
-39.751
],
[
176.452,
-39.852
],
[
176.415,
-39.948
],
[
176.312,
-40.025
],
[
176.172,
-40.084
]
]
]
],
"type": "MultiPolygon"
},
"properties": {
"caption": "BECMG FM 04Z",
"featureType": "turbulence",
"lowerExtentFL": 0,
"lowerExtentText": "SFC",
"productKey": "GraphicalNZSigwx",
"upperExtentFL": 100,
"upperExtentText": "100"
},
"type": "Feature"
},
{
"geometry": {
"coordinates": [
177.343,
-37.452
],
"type": "Point"
},
"properties": {
"alertLevel2Plus": true,
"featureType": "volcano",
"productKey": "GraphicalNZSigwx",
"volcanoName": "WHAKAARI - WHITE ISLAND"
},
"type": "Feature"
}
],
"metadata": {
"alerts": [
"Volcano Alert Level 2+, see NOTAM for VHZ information"
],
"information": [
"Chart valid for NZZC FIR only",
"Heights in FL unless otherwise specified",
"The use of CB implies severe turbulence and icing"
],
"isAmendment": false,
"issueTime": "2023-03-19T20:00:44Z",
"notes": [
"Please refer to GSM for any SIGMET information"
],
"referenceVersion": "2022-12-09",
"validFromTime": "2023-03-20T03:00:00Z",
"validToTime": "2023-03-20T09:00:00Z",
"validUpToFL": 250,
"version": "2022-12-09"
},
"type": "FeatureCollection"
}
]
}
```