Alert archive / Massachusetts / Special Marine Warnings in 2021

Special Marine Warning 58, NWS Boston/Norton, MA

July 30, 2021

NWS Boston/Norton, MA issued this special marine warning at Jul 30, 2021, 12:55 AM EDT. It was in force for 65 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 30, 2021, 12:55 AM EDT (04:55 UTC)
Expired
Jul 30, 2021, 2:00 AM EDT
In force
65 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Hail
0.75 in
Wind
34.0 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 29, 10:10 PM EDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 29, 10:10 PM EDT, 2 hours 45 minutes before
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Hazardous weather outlook, Jul 29, 5:30 PM EDT, 7 hours 25 minutes before
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In the hours before

Special weather statement, Jul 29, 10:22 PM EDT, 2 hours 33 minutes before
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Special weather statement, Jul 29, 10:44 PM EDT, 2 hours 11 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
1044 PM EDT Thu Jul 29 2021

CTZ002-MAZ008>011-300330-
Hartford CT-Western Hampshire MA-Western Hampden MA-
Eastern Hampden MA-Eastern Hampshire MA-
1044 PM EDT Thu Jul 29 2021

...STRONG THUNDERSTORM...

At 1043 PM EDT, Doppler radar was tracking a strong thunderstorm near
Otis, or 14 miles west of Westfield, moving east at 35 mph.

Pea size hail and winds in excess of 40 mph will accompany this
storm. Torrential rainfall may result in street flooding too.

Locations impacted include...
Springfield, Chicopee, Enfield, Westfield, Holyoke, Windsor, Agawam,
West Springfield, South Windsor, Simsbury, Bloomfield, Longmeadow,
Suffield, East Longmeadow, Windsor Locks, Granby, East Windsor,
Canton, Southwick and Southampton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

&&

LAT...LON 4212 7306 4215 7307 4215 7303 4227 7300
      4216 7249 4182 7263 4190 7292 4197 7289
      4197 7303 4204 7301 4204 7306 4206 7305
      4211 7307
TIME...MOT...LOC 0243Z 291DEG 35KT 4216 7304

Frank
Special weather statement, Jul 29, 11:15 PM EDT, 1 hour 40 minutes before
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Special weather statement, Jul 29, 11:19 PM EDT, 1 hour 36 minutes before
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      </p>
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Special weather statement, Jul 30, 12:22 AM EDT, 33 minutes before
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      <p id="message1">
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Special weather statement, Jul 30, 12:34 AM EDT, 21 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
1234 AM EDT Fri Jul 30 2021

MAZ005>007-014-300515-
Eastern Essex MA-Central Middlesex County MA-Western Essex MA-
Southeast Middlesex MA-
1234 AM EDT Fri Jul 30 2021

...LINE OF STRONG THUNDERSTORMS AFFECTING ESSEX COUNTY...

At 1234 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Essex to Wakefield. Movement was east at
50 mph.

Pea size hail and winds in excess of 30 mph will accompany these
storms.

Locations impacted include...
Peabody, Billerica, Beverly, Woburn, Andover, Tewksbury, Gloucester,
North Andover, Danvers, Reading, Burlington, Wilmington, North
Reading, Bedford, Ipswich, Lynnfield, Middleton, Georgetown, Boxford
and Hamilton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when these storms approach. Winds may be strong enough to
produce minor damage, such as a few downed branches.

&&

LAT...LON 4277 7080 4270 7077 4271 7078 4276 7081
      4270 7083 4271 7080 4267 7073 4264 7076
      4266 7069 4269 7063 4265 7059 4258 7066
      4259 7066 4260 7065 4261 7068 4258 7070
      4256 7080 4255 7080 4251 7131 4277 7085
TIME...MOT...LOC 0434Z 256DEG 45KT 4271 7073 4252 7107

Chai

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 9:12 PM EDTSpecial Weather StatementBOXFranklin48 min
Jul 29, 9:30 PM EDTSpecial Weather StatementBOXFranklin, Hampden, Hampshire45 min
Jul 29, 10:01 PM EDTSpecial Weather StatementBOXHampden, Hampshire44 min
Jul 29, 10:22 PM EDTSpecial Weather StatementBOXHampden, Hampshire38 min
Jul 29, 10:44 PM EDTSpecial Weather StatementBOXHampden46 min
Jul 29, 11:15 PM EDTSpecial Weather StatementBOXEssex45 min
Jul 29, 11:19 PM EDTSpecial Weather StatementBOXMiddlesex41 min
Jul 29, 11:30 PM EDTFlash Flood WarningBOXEssex96 min
Jul 29, 11:49 PM EDTSpecial Marine WarningBOX56 min
Jul 29, 11:52 PM EDTSpecial Marine WarningBOX53 min
Jul 30, 12:22 AM EDTSpecial Weather StatementBOXDukes, Nantucket38 min
Jul 30, 12:34 AM EDTSpecial Weather StatementBOXEssex41 min
Jul 30, 12:43 AM EDTSpecial Marine WarningBOX62 min

Nearby

Special Marine Warnings in Massachusetts, 2021Every special marine warning in 2021

Sources

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