Right now
The most recent data we hold from NOAA arrived 5 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 21 June 2026 at 13:00 UTC. It is kept here as a record.
No stronger detection stands among the 23 recorded within 20 km of this point since 1 May 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 21 at 6:17AM CDT until June 21 at 8:00AM CDT by NWS Houston/Galveston TX
Urban PEI: 67,574 within a heuristic 50 km radius; not unique people.
Nearby, since 1 May 2026
- June 21, 2026 · score 39 · 0.2 km
- May 29, 2026 · score 39 · 3.2 km
- May 21, 2026 · score 39 · 17.5 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 39 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 28.5836, -96.7019 |
| Nearest City | Victoria (38 km) |
| Urban exposure index (PEI) | 67.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-21T11:17:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.b8c537c7fb12fb5af34d5591d215b0ac |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-21T11:17:00.000Z.
First archived: 2026-06-21T11:23:03.380Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Brazoria, TX; Matagorda, TX; Aransas, TX; Refugio, TX; Refugio, TX; San Patricio, TX and 2 more areas |
| Headline | Flash Flood Warning issued June 21 at 6:17AM CDT until June 21 at 8:00AM CDT by NWS Houston/Galveston TX |
| Expires | 2026-06-21T08:00:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b8c537c7fb12fb5af34d5591d215b0acf33d8894.001.1","noaa_urn:oid:2.49.0.1.840.0.b8685e37802ff61f19ecf19c5ca933772a906276.001.1","noaa_urn:oid:2.49.0.1.840.0.53554c57f1d80c18bdf8eb54f298ec3419529e49.001.1","noaa_urn:oid:2.49.0.1.840.0.af621605c91fb889e4db73203e81a539d67f562c.001.1","noaa_urn:oid:2.49.0.1.840.0.bd0cf7ebb1726f3b5182b8574274fdd7ea826b75.001.1","noaa_urn:oid:2.49.0.1.840.0.d68a27f6f98ed7eff9a44eeaed93b9763b2a7ba5.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 44 |
| Iem Unit | MPH |
| Iem City | 21 SSW Palacios |
| Iem County | GMZ330 |
| Iem State | TX |
| Iem Wfo | HGX |
| Iem Remark | A mesonet station near Port OConnor Waterway measured a 38 knot wind gust. |
| MergedSources | [{"id":"iem_F_28.200_-97.290_1782028200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782028200000,"latitude":28.2,"longitude":-97.29},{"id":"iem_M_28.450_-96.400_1782030600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782030600000,"latitude":28.45,"longitude":-96.4}] |
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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