Calamity
MediumSevere WeatherCalamity Score: 52

Severe Weather in United States

HaysUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 4 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 27 May 2026 at 07:00 UTC. It is kept here as a record.

It is the 2nd strongest of the 29 detections recorded within 20 km of this point since 11 May 2026. The last comparable one was on 20 May 2026. 6 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued May 26 at 10:49PM CDT until May 27 at 2:00AM CDT by NWS Austin/San Antonio TX

An estimated 1,308,270 people live within 50 km of this point.

Nearby, since 11 May 2026

How we know

Confirmed by 3 independent sources, including NOAA.

Our own score for this event is 52 out of 100, at 90 % 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)52 / 100
Our confidence90%
Coordinates30.2302, -98.1090
Nearest CityKyle (35 km)
Population Exposed1.3M within 50 km
Impact Tiersignificant
Timestamp2026-05-27T03:49:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.6515014914cfc510d0cfc7a4597e4903

Score Breakdown

35
intensity
100
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescComal, TX; Guadalupe, TX; Bexar, TX; Bell, TX and 2 more areas
HeadlineFlash Flood Warning issued May 26 at 10:49PM CDT until May 27 at 2:00AM CDT by NWS Austin/San Antonio TX
Expires2026-05-27T02:00:00-05:00
SenderNameNWS Austin/San Antonio TX
HasExactCoordstrue
MergedCount5
MergedIds["noaa_urn:oid:2.49.0.1.840.0.6515014914cfc510d0cfc7a4597e490350565121.001.1","noaa_urn:oid:2.49.0.1.840.0.c5106f1b6f5d853795dc3b4ef27134483b7a1984.001.1","noaa_urn:oid:2.49.0.1.840.0.e0db8a543be7195cd1b9b37965ce3cd5070327fd.001.1","noaa_urn:oid:2.49.0.1.840.0.ddd6037c68105941dd944335d9e948bde686a893.001.1","noaa_urn:oid:2.49.0.1.840.0.16cb725e9e9682aa954ebafc6c4a93dc160bf8de.001.1"]
Iem TypeSummaryH
Iem Magnitude2
Iem UnitInch
Iem City2 W LBJ State Park
Iem CountyGillespie
Iem StateTX
Iem WfoEWX
Iem Remark2 inch hail reported via Photo on FB.
Google News RssFeedweather
Google News SourceNameKXAN Austin

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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