Right now
The most recent data we hold from NOAA arrived 6 hours 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 11 May 2026 at 09:00 UTC. It is kept here as a record.
No stronger detection stands among the 6 recorded within 20 km of this point since 11 May 2026 — 5 others scored the same.
What the source measured
NOAA reported: Special Marine Warning issued May 11 at 2:56AM CDT until May 11 at 4:00AM CDT by NWS Corpus Christi TX
How we know
7 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 | 0.71/1 |
| Coordinates | 27.5114, -96.6079 |
| Nearest City | Portland (81 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-11T07:56:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.de4414a8792ec9443db786d2d2052343 |
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: 2026-05-11T07:56:00.000Z.
First archived: 2026-05-11T08:21:29.761Z. 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 | Coastal waters from Baffin Bay to Port Aransas out 20 NM; Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM; Waters from Baffin Bay to Port Aransas from 20 to 60 NM; Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM; 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; Laguna Madre From 5 nm North Of Port Mansfield To Baffin Bay TX; Coastal waters from Port Mansfield TX to the Rio Grande River out 20 NM; Coastal waters from Baffin Bay to Port Mansfield TX out 20 NM; Waters from Port Mansfield TX to the Rio Grande River from 20 to 60 NM; Waters from Baffin Bay to Port Mansfield TX from 20 to 60 NM; Matagorda Bay; Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM; Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM |
| Headline | Special Marine Warning issued May 11 at 2:56AM CDT until May 11 at 4:00AM CDT by NWS Corpus Christi TX |
| Expires | 2026-05-11T04:00:00-05:00 |
| SenderName | NWS Corpus Christi TX |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.de4414a8792ec9443db786d2d20523435942eeb9.001.1","noaa_urn:oid:2.49.0.1.840.0.1cb74c66788271b43dfeef2bcc455084479650cc.001.1","noaa_urn:oid:2.49.0.1.840.0.5fe2d717e0385f6b3d3c7db894a1d7e57b1a2f8e.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 84 |
| Iem Unit | MPH |
| Iem City | 1 ESE Cc Nas |
| Iem County | Nueces |
| Iem State | TX |
| Iem Wfo | CRP |
| Iem Remark | AWOS station KNGP C. Christi NAS. |
| MergedSources | [{"id":"iem_M_27.630_-97.240_1778483160000","source":"iem","severity":"low","severityValue":25,"timestamp":1778483160000,"latitude":27.63,"longitude":-97.24},{"id":"iem_M_27.630_-97.240_1778482800000","source":"iem","severity":"low","severityValue":25,"timestamp":1778482800000,"latitude":27.63,"longitude":-97.24},{"id":"iem_G_27.690_-97.280_1778483220000","source":"iem","severity":"low","severityValue":25,"timestamp":1778483220000,"latitude":27.69,"longitude":-97.28},{"id":"iem_M_27.840_-97.070_1778483520000","source":"iem","severity":"low","severityValue":25,"timestamp":1778483520000,"latitude":27.84,"longitude":-97.07},{"id":"iem_G_27.640_-97.290_1778482560000","source":"iem","severity":"low","severityValue":25,"timestamp":1778482560000,"latitude":27.64,"longitude":-97.29},{"id":"iem_G_27.680_-97.270_1778482560000","source":"iem","severity":"low","severityValue":25,"timestamp":1778482560000,"latitude":27.68,"longitude":-97.27}] |
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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