This alert expired on 6 July 2026 at 03:30 UTC. It is kept here as a record.
No stronger detection stands among the 233 recorded within 20 km of this point since 12 March 2026 — 138 others scored the same. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 5 at 10:57PM EDT until July 5 at 11:30PM EDT by NWS Baltimore MD/Washington DC
An estimated 3,277,493 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 8, 2026 · score 52 · 3.6 km
- July 9, 2026 · score 52 · 4.1 km
- July 10, 2026 · score 52 · 4.1 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 90 % 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) | 52 / 100 |
| Our confidence | 90% |
| Coordinates | 39.6308, -75.1392 |
| Nearest City | Glassboro (8 km) |
| Population Exposed | 3.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-06T02:57:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.bef502bdc145f8dc93bcc7261b0a099a |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Chesapeake Bay north of Pooles Island MD; Chester River to Queenstown MD; Delaware Bay waters north of East Point NJ to Slaughter Beach DE; Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM; Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM; Waters from Sandy Hook NJ to Manasquan Inlet NJ from 20 to 40 NM; Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM |
| Headline | Special Marine Warning issued July 5 at 10:57PM EDT until July 5 at 11:30PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-07-05T23:30:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bef502bdc145f8dc93bcc7261b0a099a3bcb953d.002.1","noaa_urn:oid:2.49.0.1.840.0.97b9e56dd1d2656006b198cee9f7091e101750f4.001.1","noaa_urn:oid:2.49.0.1.840.0.a22a4226e7e826408b725a67bc39efbba280daff.001.1"] |
| Google News RssFeed | weather |
| Google News SourceName | CBS News |
| MergedSources | [{"id":"gnews_weather_495360_181","source":"google_news","severity":"medium","severityValue":40,"timestamp":1783296484000,"latitude":39.95,"longitude":-75.16},{"id":"gnews_weather_495360_183","source":"google_news","severity":"medium","severityValue":40,"timestamp":1783297080000,"latitude":39.95,"longitude":-75.16}] |
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 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 52/100, near Glassboro (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.