Alert archive / Massachusetts / Special Marine Warnings in 2025

Special Marine Warning 21, NWS Boston/Norton, MA

July 10, 2025

NWS Boston/Norton, MA issued this special marine warning at Jul 10, 2025, 2:43 AM EDT. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 10, 2025, 2:43 AM EDT (06:43 UTC)
Expired
Jul 10, 2025, 3:45 AM EDT
In force
62 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Hail
0.75 in
Wind
40.0 mph

What forecasters said that day

The local office's own words before this special marine warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boston/Norton, MA wrote its last area forecast discussion before this special marine warning went out at Jul 10, 1:13 AM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, Jul 10, 1:13 AM EDT, 1 hour 30 minutes before
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The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 2:10 AM EDTFlood WatchBOXBristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more8 hr
Jul 10, 6:01 AM EDTFlash Flood WarningBOXBristol, Middlesex, Norfolk, Plymouth, Suffolk, Worcester3 hr
Jul 10, 8:15 AM EDTFlash Flood Warning Considerable damage threatBOXNorfolk, Plymouth, Suffolk3 hr
Jul 10, 5:48 AM EDTFlash Flood WarningBOXProvidence107 min

Nearby

Special Marine Warnings in Massachusetts, 2025Every special marine warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.