Also... if you click the link above, it takes you to the NWS json file from which the data is extracted.
Which looks something like this....
{
"@context": [
"https://geojson.org/geojson-ld/geojson-context.jsonld",
{
"@version": "1.1",
"wx": "https://api.weather.gov/ontology#",
"@vocab": "https://api.weather.gov/ontology#"
}
],
"id": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.89be51b0f5f4da67f84715443376f89ffb2727bf.001.1",
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
-78.450000000000003,
39.390000000000001
],
[
-78.5,
39.450000000000003
],
[
-78.2099999,
39.720000000000006
],
[
-78.060000000000002,
39.530000000000008
],
[
-78.450000000000003,
39.390000000000001
]
]
]
},
"properties": {
"@id": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.89be51b0f5f4da67f84715443376f89ffb2727bf.001.1",
"@type": "wx:Alert",
"id": "urn:oid:2.49.0.1.840.0.89be51b0f5f4da67f84715443376f89ffb2727bf.001.1",
"areaDesc": "Washington, MD; Frederick, VA; Berkeley, WV; Hampshire, WV; Morgan, WV",
"geocode": {
"SAME": [
"024043",
"051069",
"054003",
"054027",
"054065"
],
"UGC": [
"MDC043",
"VAC069",
"WVC003",
"WVC027",
"WVC065"
]
},
"affectedZones": [
"https://api.weather.gov/zones/county/MDC043",
"https://api.weather.gov/zones/county/VAC069",
"https://api.weather.gov/zones/county/WVC003",
"https://api.weather.gov/zones/county/WVC027",
"https://api.weather.gov/zones/county/WVC065"
],
"references": [],
"sent": "2024-08-03T13:47:00-04:00",
"effective": "2024-08-03T13:47:00-04:00",
"onset": "2024-08-03T13:47:00-04:00",
"expires": "2024-08-03T14:30:00-04:00",
"ends": "2024-08-03T14:30:00-04:00",
"status": "Actual",
"messageType": "Alert",
"category": "Met",
"severity": "Severe",
"certainty": "Observed",
"urgency": "Immediate",
"event": "Severe Thunderstorm Warning",
"sender": "
[email protected]",
"senderName": "NWS Baltimore MD/Washington DC",
"headline": "Severe Thunderstorm Warning issued August 3 at 1:47PM EDT until August 3 at 2:30PM EDT by NWS Baltimore MD/Washington DC",
"description": "SVRLWX\n\nThe National Weather Service in Sterling Virginia has issued a\n\n* Severe Thunderstorm Warning for...\nNorthwestern Washington County in north central Maryland...\nNorthern Frederick County in northwestern Virginia...\nMorgan County in the Panhandle of West Virginia...\nNorthwestern Berkeley County in the Panhandle of West Virginia...\nNortheastern Hampshire County in eastern West Virginia...\n\n* Until 230 PM EDT.\n\n* At 146 PM EDT, a severe thunderstorm was located near Paw Paw,\nmoving northeast at 25 mph.\n\nHAZARD...60 mph wind gusts.\n\nSOURCE...Radar indicated.\n\nIMPACT...Damaging winds will cause some trees and large branches\nto fall. This could injure those outdoors, as well as\ndamage homes and vehicles. Roadways may become blocked by\ndowned trees. Localized power outages are possible.\nUnsecured light objects may become projectiles.\n\n* Locations impacted include...\nHancock, Berkeley Springs, Great Cacapon, Johnsons Mill, Omps,\nValley View, Fishers Bridge, Spohrs Crossroads, Oakland, Rock Gap,\nStotlers Crossroads, Highland Ridge, Largent, Smith Crossroads,\nBerryville, New Hope, Shady Grove, and Ridge.",
"instruction": "For your protection move to an interior room on the lowest floor of a\nbuilding.\n\nLarge hail, damaging wind, and continuous cloud to ground lightning\nare occurring with this storm. Move indoors immediately. Lightning is\none of nature's leading killers. Remember, if you can hear thunder,\nyou are close enough to be struck by lightning.",
"response": "Shelter",
"parameters": {
"AWIPSidentifier": [
"SVRLWX"
],
"WMOidentifier": [
"WUUS51 KLWX 031747"
],
"eventMotionDescription": [
"2024-08-03T17:46:00-00:00...storm...238DEG...22KT...39.46,-78.41"
],
"windThreat": [
"RADAR INDICATED"
],
"maxWindGust": [
"60 MPH"
],
"hailThreat": [
"RADAR INDICATED"
],
"maxHailSize": [
"Up to .75"
],
"BLOCKCHANNEL": [
"EAS",
"NWEM",
"CMAS"
],
"EAS-ORG": [
"WXR"
],
"VTEC": [
"/O.NEW.KLWX.SV.W.0212.240803T1747Z-240803T1830Z/"
],
"eventEndingTime": [
"2024-08-03T18:30:00+00:00"
]
},
"replacedBy": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ad3ea6c6293b26bfedf6da533870ba899c31e24c.001.1",
"replacedAt": "2024-08-03T14:10:00-04:00"
}
}