Right now
The most recent data we hold from NOAA arrived 3 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 18:45 UTC. It is kept here as a record.
It is the 4th strongest of the 43 detections recorded within 20 km of this point since 25 April 2026. The last comparable one was on 9 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 22 at 12:13PM CDT until May 22 at 1:45PM CDT by NWS New Orleans LA
Urban PEI: 262,709 within a heuristic 50 km radius; not unique people.
Nearby, since 25 April 2026
- May 22, 2026 · score 43 · 0.3 km
- May 24, 2026 · score 43 · 8.8 km
- June 18, 2026 · score 49 · 11.9 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
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 | 0.85/1 |
| Coordinates | 30.3621, -88.6880 |
| Nearest City | Gautier (8 km) |
| Urban exposure index (PEI) | 262.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-22T17:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.ecad3b36c4e31ae6605f581279a898ee |
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: 2026-05-22T17:13:00.000Z.
First archived: 2026-05-22T17:28:05.351Z. 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 | Mississippi Sound |
| Headline | Special Marine Warning issued May 22 at 12:13PM CDT until May 22 at 1:45PM CDT by NWS New Orleans LA |
| Expires | 2026-05-22T13:45:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ecad3b36c4e31ae6605f581279a898ee21e4e7d6.001.1","noaa_urn:oid:2.49.0.1.840.0.9a3eb30b42ff90da130a04e114117a17355b22bc.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 41 |
| Iem Unit | MPH |
| Iem City | 3 E Long Beach |
| Iem County | Harrison |
| Iem State | MS |
| Iem Wfo | LIX |
| Iem Remark | The Weatherflow mesonet XGPT in Gulfport on Highway 90 measured a thunderstorm wind gusts of 41 mph or 36 knots. |
| MergedSources | [{"id":"iem_M_30.360_-89.120_1779466200000","source":"iem","severity":"low","severityValue":25,"timestamp":1779466200000,"latitude":30.36,"longitude":-89.12}] |
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.
Review the area, threshold and delivery channel in your account.
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