This alert expired on 17 March 2026 at 16:15 UTC. It is kept here as a record.
It is the 5th strongest of the 177 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 41 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Snow Squall Warning issued March 17 at 11:49AM EDT until March 17 at 12:15PM EDT by NWS Charleston WV
An estimated 46,838 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 20, 2026 · score 58 · 11.0 km
- May 27, 2026 · score 34 · 16.7 km
- July 6, 2026 · score 34 · 18.5 km
How we know
Confirmed by 21 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 90% |
| Coordinates | 38.3720, -81.7100 |
| Nearest City | Charleston (7 km) |
| Population Exposed | 46.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T15:49:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.fa357f923dc03b1fc70510c9492f22e4efa5ded8.001.1 |
Score Breakdown
Technical Details
| Event | Snow Squall Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Kanawha, WV; Lincoln, WV; Putnam, WV |
| Headline | Snow Squall Warning issued March 17 at 11:49AM EDT until March 17 at 12:15PM EDT by NWS Charleston WV |
| Expires | 2026-03-17T12:15:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| Iem TypeSummary | S |
| Iem Magnitude | 5 |
| Iem Unit | Inch |
| Iem City | 2 NNW Danville |
| Iem County | Boone |
| Iem State | WV |
| Iem Wfo | RLX |
| Iem Remark | Total snowfall on average across the entire county was reported by DOH. |
| MergedSources | [{"id":"iem_S_38.860_-82.020_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":38.86,"longitude":-82.02},{"id":"iem_S_38.620_-81.970_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":38.62,"longitude":-81.97},{"id":"iem_S_38.070_-81.860_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":38.07,"longitude":-81.86},{"id":"iem_S_38.680_-81.660_1773741600000","source":"iem","severity":"low","severityValue":25,"timestamp":1773741600000,"latitude":38.68,"longitude":-81.66},{"id":"iem_S_38.740_-81.690_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":38.74,"longitude":-81.69},{"id":"iem_S_38.410_-82.380_1773742500000","source":"iem","severity":"low","severityValue":25,"timestamp":1773742500000,"latitude":38.41,"longitude":-82.38},{"id":"iem_S_38.540_-81.930_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":38.54,"longitude":-81.93},{"id":"iem_S_38.380_-81.830_1773747840000","source":"iem","severity":"low","severityValue":25,"timestamp":1773747840000,"latitude":38.38,"longitude":-81.83},{"id":"iem_S_37.870_-81.230_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":37.87,"longitude":-81.23},{"id":"iem_S_38.350_-81.750_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":38.35,"longitude":-81.75},{"id":"iem_S_38.380_-82.280_1773759900000","source":"iem","severity":"low","severityValue":25,"timestamp":1773759900000,"latitude":38.38,"longitude":-82.28},{"id":"iem_S_38.380_-81.530_1773746700000","source":"iem","severity":"low","severityValue":25,"timestamp":1773746700000,"latitude":38.38,"longitude":-81.53},{"id":"iem_S_38.290_-81.790_1773741600000","source":"iem","severity":"low","severityValue":25,"timestamp":1773741600000,"latitude":38.29,"longitude":-81.79},{"id":"iem_S_38.340_-81.680_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":38.34,"longitude":-81.68},{"id":"iem_S_38.420_-82.480_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":38.42,"longitude":-82.48},{"id":"iem_S_38.280_-81.570_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":38.28,"longitude":-81.57},{"id":"iem_S_38.410_-82.400_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":38.41,"longitude":-82.4},{"id":"iem_S_38.350_-81.710_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":38.35,"longitude":-81.71},{"id":"iem_S_38.680_-81.780_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":38.68,"longitude":-81.78},{"id":"iem_S_38.100_-81.850_1773756360000","source":"iem","severity":"low","severityValue":25,"timestamp":1773756360000,"latitude":38.1,"longitude":-81.85}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Charleston?
Calamity.live data shows a weather event with CalamityScore 34/100, near Charleston (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.