Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather near Harlingen

WillacyUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 37 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

One other detection within 20 km in the last 24 hours, 11 km from here.

This alert expired on 27 May 2026 at 14:00 UTC. It is kept here as a record.

It is the 5th strongest of the 14 detections recorded within 20 km of this point since 8 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: Severe Thunderstorm Warning issued May 27 at 8:33AM CDT until May 27 at 9:00AM CDT by NWS Brownsville TX

An estimated 266,667 people live within 50 km of this point.

Nearby, since 8 March 2026

How we know

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

Our own score for this event is 43 out of 100, at 80 % 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)43 / 100
Our confidence80%
Coordinates26.4346, -97.7343
Nearest CityHarlingen (27 km)
Population Exposed266.7K within 50 km
Impact Tiersignificant
Timestamp2026-05-27T13:33:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d40211cdddc98fce5f68c848459d324e

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescKenedy, TX; Willacy, TX; Hidalgo, TX; Kenedy, TX; Willacy, TX
HeadlineSevere Thunderstorm Warning issued May 27 at 8:33AM CDT until May 27 at 9:00AM CDT by NWS Brownsville TX
Expires2026-05-27T09:00:00-05:00
SenderNameNWS Brownsville TX
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.d40211cdddc98fce5f68c848459d324eac626866.001.1","noaa_urn:oid:2.49.0.1.840.0.cf5e39b39c7a253a04b030c5d9f89a31ec451f87.001.1"]

Safety Information

Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.

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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