Right now
The most recent data we hold from NOAA arrived 13 minutes ago, and this point is in it.
One other detection within 20 km in the last 24 hours, 21 km from here.
This alert is in force until 10 September 2026, 20:15 UTC.
It is the 24th strongest of the 72 detections recorded within 20 km of this point since 8 March 2026. Another comparable one was recorded here earlier the same day. 32 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued September 10 at 1:26PM CDT until September 10 at 3:15PM CDT by NWS New Orleans LA
An estimated 95,646 people live within 50 km of this point.
Nearby, since 8 March 2026
- September 8, 2026 · score 45 · 1.3 km
- July 1, 2026 · score 43 · 5.2 km
- June 2, 2026 · score 39 · 11.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 32 out of 100, at 86 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 32 / 100 |
| Our confidence | 86% |
| Coordinates | 30.5083, -90.5100 |
| Nearest City | Hammond (5 km) |
| Population Exposed | 95.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-10T18:26:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.632b40b37c947980b1f8a33f5326df16495bdc95.002.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Livingston, LA; Tangipahoa, LA |
| Headline | Flash Flood Warning issued September 10 at 1:26PM CDT until September 10 at 3:15PM CDT by NWS New Orleans LA |
| Expires | 2026-09-10T15:15:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 1 SW Hammond |
| Iem County | Tangipahoa |
| Iem State | LA |
| Iem Wfo | LIX |
| Iem Remark | Approximately 6 inches of standing water on some roads in downtown Hammond. |
| MergedSources | [{"id":"iem_F_30.500_-90.470_1789062000000","source":"iem","severity":"low","severityValue":25,"timestamp":1789062000000,"latitude":30.5,"longitude":-90.47}] |
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.
Want to know when something happens near Hammond?