Right now
The most recent data we hold from NOAA arrived 1 minute ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 17 March 2026 at 02:30 UTC. It is kept here as a record.
It is the strongest of the 68 detections recorded within 20 km of this point since 17 March 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 10:00PM EDT until March 16 at 10:30PM EDT by NWS State College PA
An estimated 32,899 people live within 50 km of this point.
Nearby, since 17 March 2026
- March 21, 2026 · score 34 · 6.1 km
- June 17, 2026 · score 22 · 9.5 km
- July 23, 2026 · score 34 · 12.0 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 40 out of 100, at 87 % 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 | High |
| Calamity Score (ours) | 40 / 100 |
| Our confidence | 87% |
| Coordinates | 38.1716, -76.0679 |
| Nearest City | Salisbury (46 km) |
| Population Exposed | 32.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T02:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0cf851d3fc8e90d858c09db5990a3453 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lancaster, PA; Berks, PA; Chester, PA; Montgomery, PA; Dorchester, MD; Somerset, MD; Wicomico, MD and 5 more areas |
| Headline | Severe Thunderstorm Warning issued March 16 at 10:00PM EDT until March 16 at 10:30PM EDT by NWS State College PA |
| Expires | 2026-03-16T22:30:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0cf851d3fc8e90d858c09db5990a3453e28009f6.001.1","noaa_urn:oid:2.49.0.1.840.0.140f9e1a5ed1b6954232c428264921ebed8a9a0f.001.1","noaa_urn:oid:2.49.0.1.840.0.94cdb5d93f54a5678c55acc4cfb55a66f2ed8304.001.1","noaa_urn:oid:2.49.0.1.840.0.8acf42f3c561725a6ed1b1e7ceabd8fdd4484fd8.001.1","noaa_urn:oid:2.49.0.1.840.0.89644798b2d8c92e6487fb46968e1b00ba27e203.001.1","noaa_urn:oid:2.49.0.1.840.0.abca594f2c442f596fdd5fa2f9bb1f050565623d.001.1","noaa_urn:oid:2.49.0.1.840.0.ca69b6c848080a38413f768116f9a90e006fe943.002.1","noaa_urn:oid:2.49.0.1.840.0.e41c6ea05a9c323760531aebdb53908d2fb4aedf.002.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 4 SE Tompkinsville |
| Spc County | Charles |
| Spc State | MD |
| Spc Comments | Power lines down at the intersection of MD-254 and MD-257 (LWX) |
| MergedSources | [{"id":"spc_wind_38.27_-76.86_233","source":"spc","severity":"high","severityValue":70,"timestamp":1773710460000,"latitude":38.27,"longitude":-76.86},{"id":"spc_wind_38.28_-76.86_234","source":"spc","severity":"medium","severityValue":45,"timestamp":1773710460000,"latitude":38.28,"longitude":-76.86}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 40/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.