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Sunday, May 24, 2026 11:43:19

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Severe Thunderstorm Warning 0011
Issued by the Boston Forecast Office

Action Issued Starts Expiration
New 2026-05-19 16:51:32 2026-05-19 16:51:00 2026-05-19 17:30:00
Continued 2026-05-19 17:11:03 2026-05-19 17:30:00
Cancelled 2026-05-19 17:17:33 2026-05-19 17:30:00


Action: New
Issued At: 2026-05-19 16:51:32

218 
WUUS51 KBOX 192151
SVRBOX
MAC017-021-027-192230-
/O.NEW.KBOX.SV.W.0011.260519T2151Z-260519T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Boston/Norton MA
551 PM EDT Tue May 19 2026

The National Weather Service in Boston/Norton has issued a

* Severe Thunderstorm Warning for...
  East central Worcester County in central Massachusetts...
  North central Norfolk County in eastern Massachusetts...
  Southeastern Middlesex County in northeastern Massachusetts...

* Until 630 PM EDT.

* At 550 PM EDT, a severe thunderstorm was located over Southborough,
  or near Framingham, moving east at 50 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to trees and power lines.

* Locations impacted include...
  Newton, Framingham, Waltham, Medford, Arlington, Marlborough,
  Woburn, Natick, Watertown, Lexington, Needham, Wellesley, Belmont,
  Dedham, Winchester, Hudson, Westborough, Concord, Sudbury, and
  Ashland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4247 7112 4235 7118 4226 7121 4224 7125
      4222 7163 4240 7167
TIME...MOT...LOC 2150Z 263DEG 43KT 4233 7149 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

FT


Action: Continued
Issued At: 2026-05-19 17:11:03

819 
WWUS51 KBOX 192210
SVSBOX

Severe Weather Statement
National Weather Service Boston/Norton MA
610 PM EDT Tue May 19 2026

MAC017-021-027-192230-
/O.CON.KBOX.SV.W.0011.000000T0000Z-260519T2230Z/
Worcester MA-Norfolk MA-Middlesex MA-
610 PM EDT Tue May 19 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR EASTERN WORCESTER...NORTH CENTRAL NORFOLK AND SOUTHEASTERN
MIDDLESEX COUNTIES...

At 610 PM EDT, a severe thunderstorm was located over Watertown,
moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         trees and power lines.

Locations impacted include...
Newton, Framingham, Waltham, Medford, Arlington, Marlborough, Woburn,
Natick, Watertown, Lexington, Needham, Wellesley, Belmont, Dedham,
Winchester, Hudson, Concord, Sudbury, Ashland, and Westwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4247 7112 4235 7118 4226 7121 4224 7125
      4226 7152 4241 7148
TIME...MOT...LOC 2210Z 263DEG 43KT 4236 7116 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

FT


Action: Cancelled
Issued At: 2026-05-19 17:17:33

098 
WWUS51 KBOX 192217 RRA
SVSBOX

Severe Weather Statement
National Weather Service Boston/Norton MA
617 PM EDT Tue May 19 2026

MAC017-021-027-192226-
/O.CAN.KBOX.SV.W.0011.000000T0000Z-260519T2230Z/
Worcester MA-Norfolk MA-Middlesex MA-
617 PM EDT Tue May 19 2026

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WORCESTER...NORTH
CENTRAL NORFOLK AND SOUTHEASTERN MIDDLESEX COUNTIES IS CANCELLED...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. While the threat for 
severe weather has passed, dangerous cloud to ground lightning 
continues with this storm. 

LAT...LON 4247 7112 4235 7118 4226 7121 4224 7125
      4226 7152 4241 7148
TIME...MOT...LOC 2214Z 263DEG 43KT 4237 7105 

$$

FT



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