Calamity
MediumSevere WeatherCalamity Score: 37

Severe Weather near Long Beach

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 17 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 21 July 2026 at 08:00 UTC. It is kept here as a record.

It is the 32nd strongest of the 52 detections recorded within 20 km of this point since 16 March 2026. 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: Storm Surge Watch issued July 20 at 6:57PM CDT by NWS Mobile AL

An estimated 222,013 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 37 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

TypeSevere Weather
SeverityMedium
Calamity Score (ours)37 / 100
Our confidence80%
Coordinates30.1692, -89.1123
Nearest CityLong Beach (20 km)
Population Exposed222.0K within 50 km
Impact Tiersignificant
Timestamp2026-07-20T23:57:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Storm Surge Watch_noaa_urn:oid:2.49.0.1.840.0.a63525c0d2dc6250111e0c0660137f61

Score Breakdown

35
intensity
70
population
0
cascading
18
historical

Technical Details

EventStorm Surge Watch
UrgencyFuture
CertaintyPossible
AreaDescMobile Coastal; Baldwin Coastal; Lower St. Bernard and 6 more areas
HeadlineStorm Surge Watch issued July 20 at 6:57PM CDT by NWS Mobile AL
Expires2026-07-21T03:00:00-05:00
SenderNameNWS Mobile AL
HasExactCoordstrue
MergedCount9
MergedIds["noaa_urn:oid:2.49.0.1.840.0.a63525c0d2dc6250111e0c0660137f61996a2eba.002.1","noaa_urn:oid:2.49.0.1.840.0.a63525c0d2dc6250111e0c0660137f61996a2eba.001.1","noaa_urn:oid:2.49.0.1.840.0.32a25de450c4b7ff9021e07420cad4d6fae88cf9.002.1","noaa_urn:oid:2.49.0.1.840.0.32a25de450c4b7ff9021e07420cad4d6fae88cf9.007.1","noaa_urn:oid:2.49.0.1.840.0.32a25de450c4b7ff9021e07420cad4d6fae88cf9.003.1","noaa_urn:oid:2.49.0.1.840.0.32a25de450c4b7ff9021e07420cad4d6fae88cf9.001.1","noaa_urn:oid:2.49.0.1.840.0.32a25de450c4b7ff9021e07420cad4d6fae88cf9.004.1","noaa_urn:oid:2.49.0.1.840.0.32a25de450c4b7ff9021e07420cad4d6fae88cf9.006.1","noaa_urn:oid:2.49.0.1.840.0.32a25de450c4b7ff9021e07420cad4d6fae88cf9.005.1"]

Safety Information

Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.

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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