Calamity
mediumSevere weatherCalamity Score: 37

Severe Weather near Nederland

JeffersonUnited StatesNOAA

This alert is in force until 2 September 2026, 00:45 UTC.

It is the 14th strongest of the 23 detections recorded within 20 km of this point since 20 May 2026. Another comparable one was recorded here earlier the same day.

What the source measured

NOAA reported: Flash Flood Warning issued September 1 at 4:50PM CDT until September 1 at 7:45PM CDT by NWS Lake Charles LA

An estimated 222,915 people live within 50 km of this point.

Nearby, since 20 May 2026

How we know

Confirmed by 2 independent sources, including NOAA.

Our own score for this event is 37 out of 100, at 85 % confidence.

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

Event Data

TypeSevere weather
Severitymedium
Calamity Score (ours)37 / 100
Our confidence85%
Coordinates29.9811, -94.0673
Nearest CityNederland (8 km)
Population Exposed222.9K within 50 km
Impact Tiersignificant
Timestamp2026-09-01T21:50:00.000Z
Sourcehttps://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.1567469b67f07449ad214e9528ec220321fc8bb2.001.1

Score Breakdown

35
intensity
70
population
0
cascading
18
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescJefferson, TX; Jefferson, TX; Orange, TX
HeadlineFlash Flood Warning issued September 1 at 4:50PM CDT until September 1 at 7:45PM CDT by NWS Lake Charles LA
Expires2026-09-01T19:45:00-05:00
SenderNameNWS Lake Charles LA
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.1567469b67f07449ad214e9528ec220321fc8bb2.001.1","noaa_urn:oid:2.49.0.1.840.0.3b22843006337a06f73e20bd8b10f975530c2dde.001.1"]
Iem TypeSummaryN
Iem Magnitude90
Iem UnitMPH
Iem City2 S Port Arthur
Iem CountyJefferson
Iem StateTX
Iem WfoLCH
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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 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.

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Calamity.live data shows a weather event with CalamityScore 37/100, near Nederland (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.