This alert expired on 16 March 2026 at 23:15 UTC. It is kept here as a record.
It is the 5th strongest of the 67 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 12 March 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued March 16 at 4:06PM EDT until March 16 at 7:15PM EDT by NWS Wakefield VA
An estimated 1,781,719 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 16, 2026 · score 52 · 0.0 km
- August 11, 2026 · score 52 · 3.7 km
- May 28, 2026 · score 52 · 7.1 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 89 % 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) | 52 / 100 |
| Our confidence | 89% |
| Coordinates | 36.6365, -76.2022 |
| Nearest City | Chesapeake (21 km) |
| Population Exposed | 1.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T20:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.d666f31dff4dd9a9cdfe67197315fc3c |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Camden, NC; Currituck, NC; Pasquotank, NC; City of Virginia Beach, VA; City of Chesapeake, VA; City of Norfolk, VA; City of Portsmouth, VA |
| Headline | Flash Flood Warning issued March 16 at 4:06PM EDT until March 16 at 7:15PM EDT by NWS Wakefield VA |
| Expires | 2026-03-16T19:15:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d666f31dff4dd9a9cdfe67197315fc3c5b426ec1.001.1","noaa_urn:oid:2.49.0.1.840.0.345ef37268aed0e09bd8214a4a4fac72ee75e691.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 52 |
| Iem Unit | MPH |
| Iem City | 1 NNE Duck |
| Iem County | AMZ150 |
| Iem State | NC |
| Iem Wfo | MHX |
| Iem Remark | NOS tide gauge in Duck observed a 52 mph / 45 knot marine thunderstorm wind gust. |
| MergedSources | [{"id":"iem_M_37.040_-76.080_1773692700000","source":"iem","severity":"low","severityValue":25,"timestamp":1773692700000,"latitude":37.04,"longitude":-76.08},{"id":"iem_M_36.080_-76.400_1773687300000","source":"iem","severity":"low","severityValue":25,"timestamp":1773687300000,"latitude":36.08,"longitude":-76.4},{"id":"iem_M_37.260_-76.030_1773685020000","source":"iem","severity":"low","severityValue":25,"timestamp":1773685020000,"latitude":37.26,"longitude":-76.03},{"id":"iem_F_36.890_-76.300_1773692700000","source":"iem","severity":"low","severityValue":25,"timestamp":1773692700000,"latitude":36.89,"longitude":-76.3},{"id":"iem_M_36.180_-75.750_1773693360000","source":"iem","severity":"low","severityValue":25,"timestamp":1773693360000,"latitude":36.18,"longitude":-75.75}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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 Chesapeake?
Calamity.live data shows a weather event with CalamityScore 52/100, near Chesapeake (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.