This alert expired on 10 August 2026 at 23:46 UTC. It is kept here as a record.
No stronger detection stands among the 159 recorded within 20 km of this point since 12 March 2026 — 111 others scored the same. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 10 at 7:36PM EDT until August 10 at 7:45PM EDT by NWS Mount Holly NJ
An estimated 1,609,932 people live within 50 km of this point.
Nearby, since 12 March 2026
- June 19, 2026 · score 52 · 8.6 km
- August 28, 2026 · score 52 · 12.4 km
- August 28, 2026 · score 48 · 15.9 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 88 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 88% |
| Coordinates | 37.1917, -76.2738 |
| Nearest City | East Hampton (18 km) |
| Population Exposed | 1.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T23:36:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sussex, DE; Accomack, VA; Northampton, VA; City of Norfolk, VA; City of Portsmouth, VA; City of Suffolk, VA and 4 more areas |
| Headline | Severe Thunderstorm Warning issued August 10 at 7:36PM EDT until August 10 at 7:45PM EDT by NWS Mount Holly NJ |
| Expires | 2026-08-10T19:46:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.396be8f7a0f6d03ba79a74b763c08f792bf6dfc0.001.1","noaa_urn:oid:2.49.0.1.840.0.8cfbd569a391b42c8fd1a4bd4b76e57b6c72fa23.001.1","noaa_urn:oid:2.49.0.1.840.0.636eacf71df574c160681e4d77bc3054ee306fea.001.1","noaa_urn:oid:2.49.0.1.840.0.e47e1b680879d0a96ca91281595825071246a948.001.1","noaa_urn:oid:2.49.0.1.840.0.80efadfc88d5090e117da7e46bcc4866aa13dc82.002.1","noaa_urn:oid:2.49.0.1.840.0.cea5f9672d3b36d6af0799114fb563b8270232f3.002.1","noaa_urn:oid:2.49.0.1.840.0.7b17df5e23c1bb00ac4c2d5f49516c805c7ca6fe.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 64 |
| Iem Unit | MPH |
| Iem City | 3 N Poquoson |
| Iem County | ANZ632 |
| Iem State | VA |
| Iem Wfo | AKQ |
| Iem Remark | Weatherflow sensor at Poquoson River Light reported a gust to 56 knots. |
| MergedSources | [{"id":"iem_M_37.030_-76.090_1786404480000","source":"iem","severity":"low","severityValue":25,"timestamp":1786404480000,"latitude":37.03,"longitude":-76.09},{"id":"iem_M_37.240_-76.010_1786402920000","source":"iem","severity":"low","severityValue":25,"timestamp":1786402920000,"latitude":37.24,"longitude":-76.01},{"id":"iem_M_37.180_-76.370_1786401840000","source":"iem","severity":"low","severityValue":25,"timestamp":1786401840000,"latitude":37.18,"longitude":-76.37}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 52/100, near East Hampton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.