Alert archive / Massachusetts / Special Weather Statements in 2016

Special Weather Statement, NWS Boston/Norton, MA

August 6, 2016Bristol County, Massachusetts; Bristol County, Rhode Island

NWS Boston/Norton, MA issued this special weather statement at Aug 6, 2016, 4:17 PM EDT for Bristol County, Massachusetts; Bristol County, Rhode Island. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 6, 2016, 4:17 PM EDT (20:17 UTC)
Expired
Aug 6, 2016, 4:45 PM EDT
In force
28 min
Issued by
NWS Boston/Norton, MA

Counties Bristol County, MA, Bristol County, RI

The radar

The Boston radar (KBOX), 30 km from the middle of the area, began a volume at 20:17 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.

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.3 hours before the alert went out and 103 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 12:00Z on 2016-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 2016-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
791 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

867 
WWUS81 KBOX 062017
SPSBOX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
417 PM EDT SAT AUG 6 2016
 
MAZ020-RIZ005-062045-
SOUTHERN BRISTOL MA-BRISTOL RI-
417 PM EDT SAT AUG 6 2016

...HEAVY RAIN SHOWER OVER EASTERN RHODE ISLAND MOVING INTO SOUTHEAST
MASSACHUSETTS...

AT 415 PM EDT...DOPPLER RADAR WAS TRACKING A HEAVY RAIN SHOWER OVER
WARREN AND BRISTOL IN EASTERN RHODE ISLAND...MOVING EAST AT 25 MPH.

LOCALLY HEAVY DOWNPOURS MAY CAUSE PONDING OF WATER ON ROADWAYS.
THERE COULD ALSO BE A FEW CLAPS OF THUNDER, PEA SIZE HAIL, AND
WIND GUSTS TO 30 MPH WITH THESE SHOWERS.

LOCATIONS IMPACTED INCLUDE...
FALL RIVER...DARTMOUTH...BRISTOL...SOMERSET...BARRINGTON...SWANSEA...
TIVERTON...WESTPORT...WARREN AND FREETOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE THROUGH FLOODED ROADS OR UNDERPASSES. AVOID LOW LYING
AREAS NEAR SMALL STREAMS.

&&

LAT...LON 4165 7114 4167 7119 4171 7116 4171 7119
      4173 7120 4171 7121 4173 7122 4170 7124
      4172 7127 4167 7124 4166 7127 4168 7128
      4166 7130 4171 7129 4172 7131 4177 7102
      4165 7104
TIME...MOT...LOC 2015Z 264DEG 20KT 4170 7125 

$$
FIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 3:23 PM EDTSpecial Weather StatementBOXMiddlesex22 min
Aug 6, 3:55 PM EDTSpecial Weather StatementBOXEssex35 min
Aug 6, 4:46 PM EDTSpecial Weather StatementBOXWorcester44 min
Aug 6, 5:28 PM EDTAreal Flood AdvisoryBOXHampden, Worcester2 hr
Aug 6, 5:42 PM EDTSevere Thunderstorm WarningBOXNorfolk, Worcester33 min
Aug 6, 6:11 PM EDTSpecial Marine WarningBOX49 min
Aug 6, 6:13 PM EDTSevere Thunderstorm WarningBOXBristol, Norfolk34 min
Aug 6, 6:18 PM EDTSpecial Marine WarningBOX42 min
Aug 6, 3:33 PM EDTSpecial Weather StatementBOXWashington42 min
Aug 6, 6:05 PM EDTSpecial Weather StatementBOXBristol, Kent, Providence55 min
Aug 6, 5:13 PM EDTSpecial Weather StatementBOX47 min

Nearby

Special Weather Statements in Massachusetts, 2016Special Weather Statements in Rhode Island, 2016Every special weather statement in 2016

Sources

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