Calamity
MediumSevere WeatherCalamity Score: 28

Severe Weather in United States

HoustonUnited StatesNOAA

This alert is in force until 3 September 2026, 16:30 UTC.

It is one of only 4 we have recorded within 20 km of this point since 23 May 2026. Another comparable one was recorded here earlier the same day.

What the source measured

NOAA reported: Flash Flood Warning issued September 3 at 9:16AM CDT until September 3 at 11:30AM CDT by NWS Fort Worth TX

An estimated 40,938 people live within 50 km of this point.

Nearby, since 23 May 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 28 out of 100, at 82 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)28 / 100
Our confidence82%
Coordinates31.1056, -95.3862
Nearest CityHuntsville (46 km)
Population Exposed40.9K within 50 km
Impact Tiersignificant
Timestamp2026-09-03T14:16:00.000Z
Sourcehttps://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.3a2fd5ab9e5b815b5ed0064131c21e5d8ae1b969.001.1

Score Breakdown

35
intensity
40
population
0
cascading
18
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescLeon, TX; Freestone, TX; Liberty, TX; Polk, TX; San Jacinto, TX and 2 more areas
HeadlineFlash Flood Warning issued September 3 at 9:16AM CDT until September 3 at 11:30AM CDT by NWS Fort Worth TX
Expires2026-09-03T11:30:00-05:00
SenderNameNWS Fort Worth TX
HasExactCoordstrue
MergedCount5
MergedIds["noaa_urn:oid:2.49.0.1.840.0.3a2fd5ab9e5b815b5ed0064131c21e5d8ae1b969.001.1","noaa_urn:oid:2.49.0.1.840.0.3bf20bfe4ced9209026caf8603974bc9f6dd3df1.001.1","noaa_urn:oid:2.49.0.1.840.0.52837ba6db9462869809c6c3d7c1b327c33afd5e.001.1","noaa_urn:oid:2.49.0.1.840.0.961d555857daa24058f4420fde62e960e132a961.001.1","noaa_urn:oid:2.49.0.1.840.0.18fcacc99bd61b0a9440e1e7ea843849a8a77e28.001.1"]

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 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.