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 17 June 2026 at 01:30 UTC. It is kept here as a record.
It is the 5th strongest of the 11 detections recorded within 20 km of this point since 27 May 2026. The last comparable one was on 27 May 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued June 16 at 2:28AM CDT until June 17 at 8:20PM CDT by NWS Houston/Galveston TX
Urban PEI: 436,140 within a heuristic 50 km radius; not unique people.
Nearby, since 27 May 2026
- June 18, 2026 · score 43 · 4.5 km
- July 14, 2026 · score 48 · 17.1 km
- May 27, 2026 · score 63 · 20.0 km
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.
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) | 43 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 29.4931, -95.9615 |
| Nearest City | Rosenberg (16 km) |
| Urban exposure index (PEI) | 436.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T13:18:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.9908bad5b075f244a8a0cf0048ae3038 |
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: 2026-06-18T13:18:00.000Z.
First archived: 2026-06-16T07:30:22.035Z. 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 | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Matagorda, TX; Wharton, TX; Burleson, TX; Washington, TX; Brazoria, TX; Fort Bend, TX; Wharton, TX and 11 more areas |
| Headline | Flood Warning issued June 16 at 2:28AM CDT until June 17 at 8:20PM CDT by NWS Houston/Galveston TX |
| Expires | 2026-06-16T20:30:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 15 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9908bad5b075f244a8a0cf0048ae30387a1bb72e.001.1","noaa_urn:oid:2.49.0.1.840.0.8f225378aa66628e137b17d29b53476c716bf6e6.001.1","noaa_urn:oid:2.49.0.1.840.0.c4e7e87010b542a90c2eac61ec505274fe4d55d5.001.1","noaa_urn:oid:2.49.0.1.840.0.f5daf72c0f722df94de550a45b104de4196d9c50.002.1","noaa_urn:oid:2.49.0.1.840.0.f5daf72c0f722df94de550a45b104de4196d9c50.004.1","noaa_urn:oid:2.49.0.1.840.0.e4e42727ded15e7abc2a3f538940454001685db8.001.1","noaa_urn:oid:2.49.0.1.840.0.c0eee25f227e7f8c152ad63f866c0080d267e830.001.1","noaa_urn:oid:2.49.0.1.840.0.b60e9d0773ebd2e35cc2bec9b9bab0c8ba2d9115.002.1","noaa_urn:oid:2.49.0.1.840.0.b60e9d0773ebd2e35cc2bec9b9bab0c8ba2d9115.001.1","noaa_urn:oid:2.49.0.1.840.0.9c433f5e1a39f96ee547b72176b5096ac02a8814.001.1","noaa_urn:oid:2.49.0.1.840.0.e12f5585b900de203345aa070eafda52b98f21dd.001.1","noaa_urn:oid:2.49.0.1.840.0.90c4773869df1be2da7ceb23e664f0c95e9fccb8.001.1","noaa_urn:oid:2.49.0.1.840.0.cd1d1bf940cd46da8a6a8860850d294376b4cf37.001.1","noaa_urn:oid:2.49.0.1.840.0.f5daf72c0f722df94de550a45b104de4196d9c50.003.1","noaa_urn:oid:2.49.0.1.840.0.f5daf72c0f722df94de550a45b104de4196d9c50.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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