Alert archive / Massachusetts / Special Weather Statements in 2013

Special Weather Statement, NWS Boston/Norton, MA

August 9, 2013Bristol County, Massachusetts; Bristol County, Rhode Island

NWS Boston/Norton, MA issued this special weather statement at Aug 9, 2013, 9:43 AM EDT for Bristol County, Massachusetts; Bristol County, Rhode Island. It was in force for 47 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 9, 2013, 9:43 AM EDT (13:43 UTC)
Expired: Aug 9, 2013, 10:30 AM EDT
In force: 47 min
Issued by: NWS Boston/Norton, MA

Counties Bristol County, MA, Bristol County, RI

The radar

The Boston radar (KBOX), 40 km from the middle of the area, began a volume at 13:45 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, 1.7 hours before the alert went out and 115 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 456 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 560 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 weather statement went out at Aug 9, 6:56 AM EDT, 2 hours 47 minutes earlier.

Area forecast discussion, Aug 9, 6:56 AM EDT, 2 hours 47 minutes before

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Hazardous weather outlook, Aug 9, 8:36 AM EDT, 1 hour 7 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
836 AM EDT FRI AUG 9 2013

CTZ002>004-MAZ002>005-008>012-026-NHZ011-012-015-101245-
HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-
EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-
WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-
EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA-NORTHERN MIDDLESEX MA-
CHESHIRE NH-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-
836 AM EDT FRI AUG 9 2013

...FLASH FLOOD WATCH IN EFFECT UNTIL 6 PM EDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN CONNECTICUT...
WESTERN AND CENTRAL MASSACHUSETTS...AND SOUTHERN NEW HAMPSHIRE.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLASH FLOOD WATCH.

SOME THUNDERSTORMS MAY PRODUCE STRONG WIND GUSTS. THERE IS A LOW
PROBABILITY OF DAMAGING WIND GUSTS FROM ANY THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MAZ006-007-013>021-RIZ001>007-101245-
WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN NORFOLK MA-
SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-
SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-NORTHWEST PROVIDENCE RI-
SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI-BRISTOL RI-
WASHINGTON RI-NEWPORT RI-
836 AM EDT FRI AUG 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN AND NORTHEASTERN
MASSACHUSETTS...SOUTHEASTERN MASSACHUSETTS...AND ALL OF RHODE
ISLAND.

.DAY ONE...TODAY AND TONIGHT.

A FEW LOCALLY HEAVY DOWNPOURS COULD PRODUCE FLOODING IN URBAN AND
POOR DRAINAGE AREAS.

SOME THUNDERSTORMS MAY PRODUCE STRONG WIND GUSTS. THERE IS A LOW
PROBABILITY OF DAMAGING WIND GUSTS FROM ANY THUNDERSTORMS WITH A
VERY LOW PROBABILITY OF STORMS PRODUCING A BRIEF TORNADO SPIN-UP.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MAZ022>024-RIZ008-101245-
BARNSTABLE MA-DUKES MA-NANTUCKET MA-BLOCK ISLAND RI-
836 AM EDT FRI AUG 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEASTERN MASSACHUSETTS
AND SOUTHERN RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

SOME THUNDERSTORMS MAY PRODUCE STRONG WIND GUSTS. THERE IS A LOW
PROBABILITY OF DAMAGING WIND GUSTS FROM ANY THUNDERSTORMS WITH A
VERY LOW PROBABILITY OF STORMS PRODUCING A BRIEF TORNADO SPIN-UP.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ANZ230>237-250-251-254>256-101245-
BOSTON HARBOR-CAPE COD BAY-NANTUCKET SOUND-VINEYARD SOUND-
BUZZARDS BAY-RHODE ISLAND SOUND-NARRAGANSETT BAY-BLOCK ISLAND SOUND-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL
MARINE SANCTUARY-MASSACHUSETTS BAY AND IPSWICH BAY-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD AND
NANTUCKET-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO
20 NM SOUTH OF BLOCK ISLAND-
836 AM EDT FRI AUG 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MASSACHUSETTS COASTAL WATERS
AND RHODE ISLAND COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND THUNDERSTORMS WILL PRODUCE POOR VISIBILITY WITH LOCALLY
HEAVY DOWNPOURS.

THERE IS A LOW PROBABILITY FOR THUNDERSTORMS TO CONTAIN GALE FORCE
WIND GUSTS IN ADDITION TO HEAVY RAIN AND LIGHTNING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT
WWW.WEATHER.GOV/BOSTON

YOU CAN FOLLOW US ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV

YOU CAN FOLLOW US ON TWITTER AT
@NWSBOSTON

In the hours before

Special weather statement, Aug 9, 8:15 AM EDT, 1 hour 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
815 AM EDT FRI AUG 9 2013

CTZ004-RIZ001>003-006-091300-
WINDHAM CT-WASHINGTON RI-WESTERN KENT RI-NORTHWEST PROVIDENCE RI-
SOUTHEAST PROVIDENCE RI-
815 AM EDT FRI AUG 9 2013

AT 810 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A LINE OF HEAVY SHOWERS FROM NEAR WINDHAM CONNECTICUT TO LEDYARD TO
NEAR LEDYARD CONNECTICUT...MOVING NORTHEAST AT 40 MPH. BRIEF HEAVY
DOWNPOURS WILL BE AFFECTING PORTIONS OF WESTERN RHODE ISLAND BETWEEN
820 AM AND 9 AM. BRIEF TORRENTIAL DOWNPOURS ARE LIKELY WITH THESE
SHOWERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LOCALIZED HEAVY RAINFALL WAS OCCURRING WITH THESE STORMS. SLOW DOWN
AND EXERCISE CAUTION IF DRIVING. DO NOT ATTEMPT TO DRIVE THROUGH
FLOODED ROADS.

&&

LAT...LON 4131 7189 4133 7190 4132 7185 4134 7183
      4141 7184 4142 7180 4164 7179 4163 7195
      4166 7216 4170 7221 4201 7171 4201 7162
      4185 7151 4154 7158 4132 7182 4131 7188
TIME...MOT...LOC 1204Z 220DEG 35KT 4165 7214 4147 7197 4118 7204

FIELD

Special weather statement, Aug 9, 9:43 AM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
943 AM EDT FRI AUG 9 2013

MAZ017-020-RIZ004>007-091430-
NORTHERN BRISTOL MA-SOUTHERN BRISTOL MA-WASHINGTON RI-BRISTOL RI-
EASTERN KENT RI-NEWPORT RI-
943 AM EDT FRI AUG 9 2013

...STRONG THUNDERSTORMS APPROACHING NARRAGANSETT BAY AND SOUTHEAST
MASSACHUSETTS...

AT 940 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR NORTH KINGSTOWN...MOVING NORTHEAST AT 30
MPH.

BRIEF DOWNPOURS AND WIND GUSTS UP TO 30 MPH CAN BE EXPECTED WITH
THIS STORM. BE ALERT FOR MINOR URBAN FLOODING...ESPECIALLY IN THE
FALL RIVER AND NEW BEDFORD AREAS.

LOCATIONS IMPACTED INCLUDE...
FALL RIVER...WARWICK...BRISTOL...BARRINGTON...EAST GREENWICH...
WARREN...SWANSEA...SOMERSET...DIGHTON...TIVERTON...WESTPORT...
PORTSMOUTH AND PRUDENCE ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE THROUGH FLOODED ROADS.

&&

LAT...LON 4149 7144 4171 7152 4174 7138 4173 7139
      4172 7137 4177 7133 4184 7110 4163 7099
      4150 7140 4162 7133 4160 7137 4160 7137
      4163 7134 4166 7135 4165 7141 4159 7140
      4158 7145 4153 7141
TIME...MOT...LOC 1339Z 239DEG 24KT 4157 7145

JWD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 4:11 AM EDT	Flash Flood Watch	BOX	Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more	15 hr
Aug 9, 7:31 AM EDT	Areal Flood Advisory	BOX	Franklin, Hampshire, Worcester	119 min
Aug 9, 8:25 AM EDT	Areal Flood Advisory	BOX	Hampden	3 hr
Aug 9, 10:44 AM EDT	Special Weather Statement	BOX	Bristol	46 min
Aug 9, 11:21 AM EDT	Flash Flood Warning	BOX	Hampden, Hampshire	3 hr
Aug 9, 11:35 AM EDT	Special Weather Statement	BOX	Norfolk, Plymouth	40 min
Aug 9, 11:58 AM EDT	Areal Flood Advisory	BOX	Bristol, Norfolk, Plymouth, Suffolk, Worcester	3 hr
Aug 9, 12:33 PM EDT	Flash Flood Warning	BOX	Franklin, Hampden, Hampshire, Worcester	3 hr
Aug 9, 12:40 PM EDT	Special Weather Statement	BOX	Hampden	50 min
Aug 9, 1:05 PM EDT	Special Weather Statement	BOX	Worcester	40 min
Aug 9, 2:14 PM EDT	Flash Flood Warning	BOX	Hampden, Hampshire	3 hr
Aug 9, 3:01 PM EDT	Areal Flood Advisory	BOX	Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk	3 hr
Aug 9, 3:05 PM EDT	Areal Flood Advisory	BOX	Middlesex, Worcester	3 hr
Aug 9, 4:29 PM EDT	Special Weather Statement	BOX	Barnstable	46 min
Aug 9, 5:22 PM EDT	Areal Flood Advisory	BOX	Hampden	3 hr
Aug 9, 8:15 AM EDT	Special Weather Statement	BOX	Kent, Providence	45 min
Aug 9, 1:54 PM EDT	Special Weather Statement	BOX		36 min
Aug 9, 10:16 AM EDT	Areal Flood Advisory	BOX	Cheshire, Hillsborough	119 min

Nearby

Special Weather Statements in Massachusetts, 2013 Special Weather Statements in Rhode Island, 2013 Every special weather statement in 2013

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.