Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

HalifaxUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 5 minutes 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 26 May 2026 at 09:30 UTC. It is kept here as a record.

It is the 4th strongest of the 33 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 25 at 11:24PM EDT until May 26 at 5:30AM EDT by NWS Blacksburg VA

An estimated 42,082 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 5 independent sources, including NOAA.

Our own score for this event is 34 out of 100, at 91 % 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

TypeSevere Weather
SeverityMedium
Calamity Score (ours)34 / 100
Our confidence91%
Coordinates36.7413, -78.9688
Nearest CityDanville (42 km)
Population Exposed42.1K within 50 km
Impact Tiersignificant
Timestamp2026-05-26T03:24:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.94148e91c45511b7d29679d86786f02f0e855482.001.1

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyExpected
CertaintyLikely
AreaDescHalifax, VA
HeadlineFlood Warning issued May 25 at 11:24PM EDT until May 26 at 5:30AM EDT by NWS Blacksburg VA
Expires2026-05-26T05:30:00-04:00
SenderNameNWS Blacksburg VA
HasExactCoordstrue
Iem TypeSummaryF
Iem City1 W Meherrin
Iem CountyPrince Edward
Iem StateVA
Iem WfoAKQ
Iem RemarkThe 911 call center reported flooding on Love Road.
MergedSources[{"id":"iem_F_36.700_-78.910_1779762600000","source":"iem","severity":"low","severityValue":25,"timestamp":1779762600000,"latitude":36.7,"longitude":-78.91},{"id":"iem_F_37.110_-78.360_1779753000000","source":"iem","severity":"low","severityValue":25,"timestamp":1779753000000,"latitude":37.11,"longitude":-78.36},{"id":"iem_F_36.780_-79.000_1779762600000","source":"iem","severity":"low","severityValue":25,"timestamp":1779762600000,"latitude":36.78,"longitude":-79},{"id":"iem_F_37.090_-78.380_1779757500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779757500000,"latitude":37.09,"longitude":-78.38}]

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.

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