Severe Thunderstorm Warning 114, NWS Boston/Norton, MA

Issued

Sep 16, 2021, 7:13 AM EDT (11:13 UTC)

Expired

Sep 16, 2021, 8:15 AM EDT

In force

62 min

Issued by

NWS Boston/Norton, MA

Area

Storm-based polygon

Hail

0.75 in

Wind

60.0 mph

Counties Barnstable County, MA, Bristol County, MA, Dukes County, MA, Plymouth County, MA

The Boston radar (KBOX), 60 km from the middle of the area, began a volume at 11:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

770 
WUUS51 KBOX 161113
SVRBOX
MAC001-005-007-023-161215-
/O.NEW.KBOX.SV.W.0114.210916T1113Z-210916T1215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Boston/Norton MA
713 AM EDT Thu Sep 16 2021

The National Weather Service in Boston/Norton has issued a

* Severe Thunderstorm Warning for...
  North central Dukes County in southeastern Massachusetts...
  Southern Barnstable County in southeastern Massachusetts...
  South central Plymouth County in southeastern Massachusetts...
  Southeastern Bristol County in southeastern Massachusetts...

* Until 815 AM EDT.

* At 713 AM EDT, a severe thunderstorm was located near Mattapoisett,
  or 7 miles south of Marion, moving east at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  New Bedford, Barnstable, Dartmouth, Falmouth, Brewster, Marion,
  Yarmouth, Sandwich, Bourne, Fairhaven, Dennis, Mashpee, Harwich,
  Acushnet, Mattapoisett, Gosnold and Hyannis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4165 7026 4161 7026 4163 7027 4162 7043
      4149 7072 4149 7077 4151 7070 4151 7098
      4152 7087 4152 7098 4167 7096 4169 7076
      4164 7077 4161 7066 4168 7062 4170 7067
      4171 7026 4177 7008 4166 7007
TIME...MOT...LOC 1113Z 264DEG 27KT 4159 7078 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Loconto

069 
WWUS51 KBOX 161206
SVSBOX

Severe Weather Statement
National Weather Service Boston/Norton MA
806 AM EDT Thu Sep 16 2021

MAC001-005-007-023-161215-
/O.EXP.KBOX.SV.W.0114.000000T0000Z-210916T1215Z/
Dukes MA-Barnstable MA-Plymouth MA-Bristol MA-
806 AM EDT Thu Sep 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL DUKES...SOUTHERN
BARNSTABLE...SOUTH CENTRAL PLYMOUTH AND SOUTHEASTERN BRISTOL COUNTIES
WILL EXPIRE AT 815 AM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However heavy 
rain and street flooding is still possible with this thunderstorm.

LAT...LON 4165 7026 4161 7026 4163 7027 4162 7043
      4149 7072 4149 7077 4151 7070 4151 7098
      4152 7087 4152 7098 4167 7096 4169 7076
      4164 7077 4161 7066 4168 7062 4170 7067
      4171 7026 4177 7008 4166 7007
TIME...MOT...LOC 1205Z 264DEG 27KT 4163 7027 

$$

Frank

Severe Thunderstorm Warnings in Massachusetts, 2021Every severe thunderstorm warning in 2021

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.