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 July 2026 at 11:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 42 detections recorded within 20 km of this point since 16 March 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: Tropical Storm Warning issued July 21 at 4:19PM CDT by NWS New Orleans LA
An estimated 222,013 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 20, 2026 · score 37 · 10.0 km
- June 20, 2026 · score 43 · 11.9 km
- June 3, 2026 · score 43 · 12.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 80% |
| Coordinates | 30.1009, -89.1799 |
| Nearest City | Long Beach (28 km) |
| Population Exposed | 222.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T21:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tropical Storm Warning_noaa_urn:oid:2.49.0.1.840.0.e9b9c0ee439931423c0c37a84f1b7974 |
Score Breakdown
Technical Details
| Event | Tropical Storm Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Pontchartrain; Lake Salvador and Lake Cataouatche; Terrebonne Bay; Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm; Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM; Mississippi Sound; Lake Borgne; Breton Sound; Chandeleur Sound; Barataria Bay; Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM; Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm; Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM; Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM; Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm; Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM; Lower Lafourche and 27 more areas |
| Headline | Tropical Storm Warning issued July 21 at 4:19PM CDT by NWS New Orleans LA |
| Expires | 2026-07-22T06:30:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | false |
| MergedCount | 30 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e9b9c0ee439931423c0c37a84f1b79741ec31414.001.2","noaa_urn:oid:2.49.0.1.840.0.e9b9c0ee439931423c0c37a84f1b79741ec31414.002.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.003.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.006.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.005.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.016.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.021.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.011.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.014.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.013.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.022.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.010.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.015.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.008.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.012.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.019.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.020.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.007.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.009.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.017.1","noaa_urn:oid:2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.001.1","noaa_urn:oid:2.49.0.1.840.0.65b6e03b8c9fc37cc5ec45ae4b72ad30e8e68eb5.002.1","noaa_urn:oid:2.49.0.1.840.0.65b6e03b8c9fc37cc5ec45ae4b72ad30e8e68eb5.001.1","noaa_urn:oid:2.49.0.1.840.0.65b6e03b8c9fc37cc5ec45ae4b72ad30e8e68eb5.007.1","noaa_urn:oid:2.49.0.1.840.0.65b6e03b8c9fc37cc5ec45ae4b72ad30e8e68eb5.003.1","noaa_urn:oid:2.49.0.1.840.0.65b6e03b8c9fc37cc5ec45ae4b72ad30e8e68eb5.004.1","noaa_urn:oid:2.49.0.1.840.0.65b6e03b8c9fc37cc5ec45ae4b72ad30e8e68eb5.005.1","noaa_urn:oid:2.49.0.1.840.0.65b6e03b8c9fc37cc5ec45ae4b72ad30e8e68eb5.006.1","noaa_urn:oid:2.49.0.1.840.0.69434cde6b092f29ebd36b1733c19b76a831aaa4.001.1","noaa_urn:oid:2.49.0.1.840.0.69434cde6b092f29ebd36b1733c19b76a831aaa4.002.1"] |
Safety Information
During a tropical cyclone: shelter in a sturdy interior room away from windows. Stock emergency supplies including water, food, medications, and flashlights. Do not venture outdoors during the eye of the storm. After passage, beware of downed power lines, flooding, and structural damage. Follow official guidance for evacuation and shelter.
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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