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 23 May 2026 at 18:45 UTC. It is kept here as a record.
It is the 5th strongest of the 13 detections recorded within 20 km of this point since 11 May 2026. The last comparable one was on 20 May 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 23 at 1:21PM CDT until May 23 at 1:45PM CDT by NWS Brownsville TX
Nearby, since 11 May 2026
- May 11, 2026 · score 43 · 13.7 km
- May 20, 2026 · score 43 · 20.2 km
How we know
5 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.68/1 |
| Coordinates | 27.5652, -96.8926 |
| Nearest City | Portland (55 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-23T18:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.df266b600b1b4782ab7349041da8004f |
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: 2026-05-23T18:21:00.000Z.
First archived: 2026-05-23T18:33:39.757Z. 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 | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Laguna Madre From the Port Of Brownsville to the Arroyo Colorado; Laguna Madre From The Arroyo Colorado To 5 NM North Of Port Mansfield TX; Coastal waters from Port Mansfield TX to the Rio Grande River out 20 NM; Copano, Aransas, and Redfish Bays; San Antonio, Mesquite, and Espiritu Santo Bays; Coastal waters from Baffin Bay to Port Aransas out 20 NM; Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM; San Antonio, Mesquite, and Espiritu Santo Bays; Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM |
| Headline | Special Marine Warning issued May 23 at 1:21PM CDT until May 23 at 1:45PM CDT by NWS Brownsville TX |
| Expires | 2026-05-23T13:45:00-05:00 |
| SenderName | NWS Brownsville TX |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.df266b600b1b4782ab7349041da8004f0dc42ca2.001.1","noaa_urn:oid:2.49.0.1.840.0.9b6e4cca4aafaa6b3c3edfa830a96d1749f05338.001.1","noaa_urn:oid:2.49.0.1.840.0.fb449cd6f4b11f0ed616f0ff20700de328f488c3.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 45 |
| Iem Unit | MPH |
| Iem City | 2 SE Flour Bluff |
| Iem County | Nueces |
| Iem State | TX |
| Iem Wfo | CRP |
| Iem Remark | Correction for the correct LSR event type. Mesonet station XLAG Laguna Shores. |
| MergedSources | [{"id":"iem_M_27.870_-97.320_1779556320000","source":"iem","severity":"low","severityValue":25,"timestamp":1779556320000,"latitude":27.87,"longitude":-97.32},{"id":"iem_G_27.640_-97.290_1779555660000","source":"iem","severity":"low","severityValue":25,"timestamp":1779555660000,"latitude":27.64,"longitude":-97.29},{"id":"iem_G_27.770_-97.500_1779555240000","source":"iem","severity":"low","severityValue":25,"timestamp":1779555240000,"latitude":27.77,"longitude":-97.5},{"id":"iem_M_27.640_-97.290_1779555660000","source":"iem","severity":"low","severityValue":25,"timestamp":1779555660000,"latitude":27.64,"longitude":-97.29}] |
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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