This alert expired on 21 July 2026 at 05:15 UTC. It is kept here as a record.
No stronger detection stands among the 27 recorded within 20 km of this point since 16 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tropical Storm Watch issued July 20 at 10:05AM CDT by NWS New Orleans LA
An estimated 261,531 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 25, 2026 · score 43 · 4.7 km
- August 7, 2026 · score 32 · 5.9 km
- May 9, 2026 · score 43 · 11.8 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 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 30.2460, -87.9787 |
| Nearest City | Fairhope (31 km) |
| Population Exposed | 261.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-20T15:05:00.000Z |
Score Breakdown
Technical Details
| Event | Tropical Storm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Mississippi Sound; Lake Borgne; Breton Sound; Chandeleur Sound; 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 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; Southern Harrison; Lower Plaquemines and 16 more areas |
| Headline | Tropical Storm Watch issued July 20 at 10:05AM CDT by NWS New Orleans LA |
| Expires | 2026-07-21T00:15:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | false |
| MergedCount | 19 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.51da7c0f197d2edbf5e19b900d33a65b715403f8.001.1","noaa_urn:oid:2.49.0.1.840.0.493382d4c0432c78d6999237ed1f4a9c245c3196.006.2","noaa_urn:oid:2.49.0.1.840.0.493382d4c0432c78d6999237ed1f4a9c245c3196.001.2","noaa_urn:oid:2.49.0.1.840.0.493382d4c0432c78d6999237ed1f4a9c245c3196.004.2","noaa_urn:oid:2.49.0.1.840.0.493382d4c0432c78d6999237ed1f4a9c245c3196.005.2","noaa_urn:oid:2.49.0.1.840.0.493382d4c0432c78d6999237ed1f4a9c245c3196.007.2","noaa_urn:oid:2.49.0.1.840.0.493382d4c0432c78d6999237ed1f4a9c245c3196.002.2","noaa_urn:oid:2.49.0.1.840.0.493382d4c0432c78d6999237ed1f4a9c245c3196.003.2","noaa_urn:oid:2.49.0.1.840.0.7b335e36f7de6ef527295ebd7a206a2fdbcd4bb9.003.1","noaa_urn:oid:2.49.0.1.840.0.7b335e36f7de6ef527295ebd7a206a2fdbcd4bb9.002.2","noaa_urn:oid:2.49.0.1.840.0.7b335e36f7de6ef527295ebd7a206a2fdbcd4bb9.005.1","noaa_urn:oid:2.49.0.1.840.0.7b335e36f7de6ef527295ebd7a206a2fdbcd4bb9.001.2","noaa_urn:oid:2.49.0.1.840.0.7b335e36f7de6ef527295ebd7a206a2fdbcd4bb9.007.1","noaa_urn:oid:2.49.0.1.840.0.7b335e36f7de6ef527295ebd7a206a2fdbcd4bb9.006.1","noaa_urn:oid:2.49.0.1.840.0.7b335e36f7de6ef527295ebd7a206a2fdbcd4bb9.004.1","noaa_urn:oid:2.49.0.1.840.0.5ec728f71d111c4818710fd62db91afdac850acf.002.1","noaa_urn:oid:2.49.0.1.840.0.5ec728f71d111c4818710fd62db91afdac850acf.001.1","noaa_urn:oid:2.49.0.1.840.0.5ec728f71d111c4818710fd62db91afdac850acf.004.1","noaa_urn:oid:2.49.0.1.840.0.5ec728f71d111c4818710fd62db91afdac850acf.003.1"] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 43/100, near Fairhope (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.