Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

HolmesUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 3 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 24 May 2026 at 13:00 UTC. It is kept here as a record.

No stronger detection stands among the 12 recorded within 20 km of this point since 28 April 2026 — 9 others scored the same. The last comparable one was on 23 May 2026. 4 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 23 at 7:53PM CDT until May 28 at 12:00PM CDT by NWS Jackson MS

Nearby, since 28 April 2026

How we know

Confirmed by 4 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 70 % 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)22 / 100
Our confidence70%
Coordinates33.0657, -89.8600
Nearest CityGreenwood (59 km)
Impact Tierminor
Timestamp2026-05-24T00:53:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.181548754fe3c13e308fe4c19c0c323e2e3920c4.001.1

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescAttala, MS; Holmes, MS
HeadlineFlood Warning issued May 23 at 7:53PM CDT until May 28 at 12:00PM CDT by NWS Jackson MS
Expires2026-05-24T08:00:00-05:00
SenderNameNWS Jackson MS
HasExactCoordstrue
Iem TypeSummaryD
Iem City3 E Ridgeland
Iem CountyMadison
Iem StateMS
Iem WfoJAN
Iem RemarkUtility pole and lines downed across Post Rd near Overlook Pointe.
MergedSources[{"id":"iem_D_32.880_-89.980_1779566880000","source":"iem","severity":"low","severityValue":25,"timestamp":1779566880000,"latitude":32.88,"longitude":-89.98},{"id":"iem_D_32.590_-89.860_1779565740000","source":"iem","severity":"low","severityValue":25,"timestamp":1779565740000,"latitude":32.59,"longitude":-89.86},{"id":"iem_D_32.430_-90.080_1779564360000","source":"iem","severity":"low","severityValue":25,"timestamp":1779564360000,"latitude":32.43,"longitude":-90.08}]

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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Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.