Right now
The most recent data we hold from NOAA arrived 2 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 20 June 2026 at 05:45 UTC. It is kept here as a record.
It is the 21st strongest of the 87 detections recorded within 20 km of this point since 8 May 2026. Another comparable one was recorded here earlier the same day. 16 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 19 at 9:41PM CDT until June 20 at 12:45AM CDT by NWS Mobile AL
Urban PEI: 46,805 within a heuristic 50 km radius; not unique people.
Nearby, since 8 May 2026
- May 8, 2026 · score 34 · 6.4 km
- June 29, 2026 · score 34 · 9.3 km
- May 11, 2026 · score 22 · 10.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 30.9537, -89.2844 |
| Nearest City | Hattiesburg (42 km) |
| Urban exposure index (PEI) | 46.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-20T02:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.b8c91042def01a01c1d83e78ade32e76 |
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: 2026-06-20T02:41:00.000Z.
First archived: 2026-06-20T02:47:17.604Z. 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 | Stone, MS; George, MS; Perry, MS; Stone, MS; Washington, LA; Pearl River, MS and 3 more areas |
| Headline | Flash Flood Warning issued June 19 at 9:41PM CDT until June 20 at 12:45AM CDT by NWS Mobile AL |
| Expires | 2026-06-20T00:45:00-05:00 |
| SenderName | NWS Mobile AL |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b8c91042def01a01c1d83e78ade32e7666c2c9a6.001.1","noaa_urn:oid:2.49.0.1.840.0.dd43287a9c85f09e915ce3cfb73a9819854b40db.001.1","noaa_urn:oid:2.49.0.1.840.0.1d613c8809deb3d539c4e0d0985de996711a1046.001.1","noaa_urn:oid:2.49.0.1.840.0.0b7d97ed22c2802ae7197516321dd151bff57721.001.1","noaa_urn:oid:2.49.0.1.840.0.acc284149882a2a97066e153876ceea1fa0650c1.001.1","noaa_urn:oid:2.49.0.1.840.0.dfb6403a4fca728fc02d27fe416387f5a6d64f62.001.1"] |
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.
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