Right now
The most recent data we hold from NOAA arrived 2 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 22 May 2026 at 02:45 UTC. It is kept here as a record.
It is the 31st strongest of the 45 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 21 at 6:49PM CDT until May 21 at 9:45PM CDT by NWS Austin/San Antonio TX
Nearby, since 16 March 2026
- May 22, 2026 · score 22 · 0.0 km
- May 7, 2026 · score 45 · 20.3 km
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
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 70% |
| Coordinates | 30.6187, -98.3950 |
| Nearest City | Leander (52 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-21T23:49:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.c0d4358d03cbc7b2b854bd62060d8773d25245dc.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Blanco, TX; Burnet, TX; Llano, TX |
| Headline | Flash Flood Warning issued May 21 at 6:49PM CDT until May 21 at 9:45PM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-21T21:45:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | Granite Shoals |
| Iem County | Burnet |
| Iem State | TX |
| Iem Wfo | EWX |
| Iem Remark | Burnet County EMC reports flooding throughout the city of Granite Shoals with multiple low water crossings also having issues within the flash flood warning. County roads 120, 122, 202, 203, US 281 at |
| Google News RssFeed | weather |
| Google News SourceName | FOX 7 Austin |
| MergedSources | [{"id":"iem_F_30.590_-98.390_1779406920000","source":"iem","severity":"low","severityValue":25,"timestamp":1779406920000,"latitude":30.59,"longitude":-98.39},{"id":"gnews_weather_494280_154","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779408531000,"latitude":30.27,"longitude":-97.74},{"id":"gnews_weather_494275_158","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779391438000,"latitude":30.27,"longitude":-97.74}] |
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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