Right now
The most recent data we hold from NOAA arrived 30 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 18 June 2026 at 21:15 UTC. It is kept here as a record.
It is the 24th strongest of the 99 detections recorded within 20 km of this point since 6 May 2026. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 18 at 1:01PM CDT until June 18 at 4:15PM CDT by NWS New Orleans LA
Nearby, since 6 May 2026
- June 23, 2026 · score 34 · 11.6 km
- June 22, 2026 · score 34 · 15.8 km
- June 1, 2026 · score 22 · 18.1 km
How we know
2 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 | 0.64/1 |
| Coordinates | 30.9872, -90.2503 |
| Nearest City | Hammond (58 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-18T18:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.d1434cb4a6cd1ad809113ee9e22e1f7d |
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: 2026-06-18T18:01:00.000Z.
First archived: 2026-06-18T18:05:27.058Z. 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 | Hancock, MS; Harrison, MS; Forrest, MS; Lamar, MS; Rankin, MS; Scott, MS; Simpson, MS; Smith, MS and 10 more areas |
| Headline | Flash Flood Warning issued June 18 at 1:01PM CDT until June 18 at 4:15PM CDT by NWS New Orleans LA |
| Expires | 2026-06-18T16:15:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d1434cb4a6cd1ad809113ee9e22e1f7d7eaffd86.001.1","noaa_urn:oid:2.49.0.1.840.0.46cfffe6f996e4dff9632ba6a935e098b3497d6a.001.1","noaa_urn:oid:2.49.0.1.840.0.42dda50d706c15677f3314930bfd5277b89ae131.001.1","noaa_urn:oid:2.49.0.1.840.0.bf156dfb02f426c9a586c9e8428873d315085c80.001.1","noaa_urn:oid:2.49.0.1.840.0.697202a08d3b6f791452fe328583d6a5021d3754.001.1","noaa_urn:oid:2.49.0.1.840.0.fc24dd06712f332b2129b5d1c9a776bc5a4f12b1.001.1","noaa_urn:oid:2.49.0.1.840.0.fe69fa63080d273ea7de3974c41b70344618ba39.001.1","noaa_urn:oid:2.49.0.1.840.0.b800a122ac2363332472cdab2d0a071a0364b26b.001.1","noaa_urn:oid:2.49.0.1.840.0.1964ae9d9c277cf4b9eed5024de5102e65bff196.001.1","noaa_urn:oid:2.49.0.1.840.0.5104578183d3c5b4845b8074fcd14a79dbd9b4bb.001.1","noaa_urn:oid:2.49.0.1.840.0.7cf240a3f505cf79337fa0fa717b1c0e6d7bc730.001.1","noaa_urn:oid:2.49.0.1.840.0.301581bdcd78d5ac689f94b100d593a91624ae31.001.1","noaa_urn:oid:2.49.0.1.840.0.8fd64ac27ff7dd2fccc881222d197b1d8b96526d.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 WNW Bush |
| Iem County | St. Tammany |
| Iem State | LA |
| Iem Wfo | LIX |
| Iem Remark | Tree fell on a car on Hwy 21 and Fairgrounds, in Bush. |
| MergedSources | [{"id":"iem_D_30.620_-89.920_1781800200000","source":"iem","severity":"low","severityValue":25,"timestamp":1781800200000,"latitude":30.62,"longitude":-89.92}] |
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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