Alert archive / Massachusetts / Flash Flood Warnings in 1992

Flash Flood Warning 5, NWS Boston/Norton, MA

August 9, 1992Bristol County, Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this flash flood warning at Aug 9, 1992, 4:45 PM EDT for Bristol County, Plymouth County, Massachusetts. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Aug 9, 1992, 4:45 PM EDT (20:45 UTC)
Expired
Aug 9, 1992, 5:45 PM EDT
In force
60 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

Counties Bristol County, MA, Plymouth County, MA

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.8 hours before the alert went out and 81 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 1992-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 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 1992-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
7 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
510 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBOS 092106
FFWBOS
MAC023-005-092145-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BOSTON MA
445 PM EDT SUN AUG 9 1992

THE NATIONAL WEATHER SERVICE IN BOSTON HAS CONTINUED THE
FLASH FLOOD WARNING EFFECTIVE UNTIL  545 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN EAST MASSACHUSETTS

   ...SOUTHWESTERN PLYMOUTH COUNTY

IN SOUTHEAST MASSACHUSETTS

   ...BRISTOL COUNTY

POLICE REPORTS FROM SOUTH COASTAL MASSACHUSETTS INDICATES THAT INTERSTATE
195 FROM ABOUT DARTHMOUTH TO MATTAPOISETT HAS FLOODED RAOS CONDITIONS.
IN ADDITION RADAR PICTURES INDICATE THAT MORE HEAVY RAIN IS FALLING
ALONG THE COAST BACK INTO RHODE ISLAND AND CONNECTICUT.  THUS THE
FLOODING WILL BE SLOW TO GO DOWN.  CARS ARE STRANDED ON SEVERAL
ROADS AND TRAVEL IN SOUTHERN BRISTOL AND SOUTHERN PLYMOUTH COUNTIES
SHOULD BE UNDERTAKEN WITH EXTREME CAUTION.  2 TO 4 INCHES OF RAIN
HAS FALLEN IN THOSE AREAS SINCE EARLY THIS AFTERNOON AND ADDITIONAL
RAIN WILL FALL FOR THE NEXT HOUR OR SO.

IF HEAVY RAIN HAS FALLEN NEARBY...DO NOT DRIVE YOUR VEHICLE INTO
AREAS WHERE WATER COVERS THE ROADWAY.  THE WATER DEPTH MAY BE TOO
GREAT TO ALLOW YOUR CAR TO CROSS SAFELY.  VEHICLES CAUGHT IN RISING
WATER SHOULD BE ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

JRS

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 9, 1:55 PM EDT, 2 hours 50 minutes before
CTZALL-092100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
155 PM EDT SUN AUG 9 1992

...THE SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR WESTERN
MASSACHUSETTS AND WESTERN CONNECTICUT UNTIL 5 PM THIS AFTERNOON...

AT 145 PM...NATIONAL WEATHER SERVICE RADAR INDICATED THUNDERSTORMS WITH
LOCALLY HEAVY RAIN AND GUSTY WINDS ACOSS NORTHERN NEW JERSEY AND
SOUTHEAST NEW YORK STATE.  THE STRONGEST CELL WAS LOCATED ABOUT 30 MILES
SOUTH OF ALBANY NEAR CATSKILL.  THE MOVEMENT OF THE SHOWERS AND
THUNDERSTORMS WAS TOWARD THE EAST AT 30 MILES AN HOUR.

IN ADDITION NUMEROUS SHOWERS ALONG WITH A FEW THUNDERSTORMS WERE LOCATED
IN EASTERN CONNECTICUT.  LOCALLY TORRENTIAL RAIN WAS FALLING IN THE
GROTON AND NEW LONDON AREA AS WELL AS UP INTO NORWICH.  THIS AREA OF
PRECIPITATION WAS ALSO MOVING EAST AT ABOUT 30 MILES AN HOUR.

THE LOCALLY HEAVY RAINS WILL CAUSE SOME MINOR FLOODING IN POOR DRAINAGE
LOCATIONS.

IF YOU LIVE IN OR AROUND THE WATCH LOCATION...STAY TUNED TO NOAA
WEATHER RADIO OR YOUR LOCAL RADIO/TV STATION FOR FURTHER UPDATES
ON THIS WEATHER SITUATION.  IF THREATENING WEATHER APPROACHES...
TAKE COVER QUICKLY.

SEKELSKY
Special weather statement, Aug 9, 2:20 PM EDT, 2 hours 25 minutes before
SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE PROVIDENCE RI
220 PM EDT SUN AUG 9 1992

...STRONG THUNDERSTORMS CONTINUED OVER SOUTH COASTAL RHODE ISLAND...

AT 210 PM...WEATHER RADAR SHOWED STRONG THUNDERSTORMS ACCOMPANIED BY
TORRENTIAL RAINS FROM SOUTH KINGSTOWN TO LITTLE COMPTON.  THEY WERE
MOVING EAST NEAR 35 MPH AND WILL CONTINUE TO AFFECT SOUTHEAST COASTAL
RHODE ISLAND THROUGH 3 PM.

THESE STORMS CONTINUE TO PRODUCE STREET FLOODING...AS REPORTED BY
WEATHER SPOTTERS FROM WESTERLY TO NEWPORT.

MARINERS OVER THE LOWER BAY AND THE SOUTH SHORE SHOULD REMAIN IN PORT
UNTIL THESE STORMS PASS.

ELSEWHERE ACROSS RHODE ISLAND...MOSTLY LIGHT TO MODERATE RAIN WAS
FALLING.  THE BACK EDGE OF DTHE RAIN AND THUNDERSTORMS WAS MOVING SLOWLY
ACROSS EASTERN CONNECTICUT.  THE RAIN SHOULD BEGIN TO SUBSIDE OVER
NORTHERN RHODE ISLAND BY 230 PM...AND MAY END ACROSS EXTREME NORTHWEST
RHODE ISLAND BY 3 PM.

VALLEE
Special weather statement, Aug 9, 2:52 PM EDT, 1 hour 53 minutes before
SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE PROVIDENCE RI
252 PM EDT SUN AUG 9 1992

...STRONG THUNDERSTORMS CONTINUED OVER SOUTHEAST RHODE ISLAND...

AT 245 PM...WEATHER RADAR SHOWED STRONG THUNDERSTORMS ACCOMPANIED BY
TORRENTIAL RAINS AFFECTING SOUTHEAST RHODE ISLAND FROM NEWPORT TO
LITTLE COMPTON.  THESE STORMS CONTINUED TO DUMP RAINFALL AMOUNTS OF
1 INCH IN 45 MINUTES AS REPORTED BY A WEATHER SPOTTER IN ADAMSVILLE.

THESE STORMS WILL CONTINUE TO PRODUCE STREET FLOODING FROM TORRENTIAL
RAINS AS THEY HEAD EASTWARD INTO NEIGHBORING MASSACHUSETTS BY 330 PM.

ELSEWHERE ACROSS RHODE ISLAND...RAIN HAD LIGHTENED UP CONSIDERABLY
OVER NORTHERN RHODE ISLAND...AND WAS ABOUT TO END IN THE NORTHWEST
CORNER OF THE STATE.  DUE TO THE SLOW MOVEMENT OF THE RAIN AREA...
IT APPEARS THAT MUCH OF CENTRAL AND SOUTHERN RHODE ISLAND WILL CONTINUE
TO EXPERIENCE RAIN THROUGH 4 PM.
.
ANYONE TRAVELING THROUGH NEWPORT COUNTY SHOULD PLAN ON SLOW TRAVEL
AND LOCALIZED STREET FLOODING UNTIL THE HEAVY RAINS SUBSIDE.

VALLEE
Special weather statement, Aug 9, 3:23 PM EDT, 1 hour 22 minutes before
MAZ009-002-092100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BOSTON MA
320 PM EDT SUN AUG 9 1992

...HEAVY RAINSHOWERS ARE CROSSING SOUTHEAST AND SOUTH COASTAL
   MASSACHUSETTS...

AT 3 PM RADAR SHOWED A MODERATE TO HEAVY RAINSHOWER OVER BRISTOL
COUNTY JUST EAST OF BUZZARDS BAY...MOVING NORTHEAST AT ABOUT 25 MPH.
BY 4 PM...THIS SHOWER WILL LIKELY MOVE JUST SOUTH OF MIDDLEBORO...
THEN CONTINUE ACROSS PLYMOUTH COUNTY.

AN OBSERVER IN TAUNTON REPORTED ABOUT AN INCH AND A HALF OF RAIN
IN AN HOUR EARLIER TODAY...THUS BRIEF HEAVY RAIN HAS ALREADY FALLEN.
LOCALIZED FLOODING IN POOR DRAINAGE AND LOW LYING AREAS IS POSSIBLE.

PEOPLE IN BRISTOL AND PLYMOUTH COUNTIES SHOULD EXPECT BRIEF HEAVY
RAINS THE NEXT HOUR OR SO...AND ADAPT ACCORDINGLY.  WHILE LIGHTNING
DETECTION EQUIPMENT HAS SHOWN LITTLE LIGHTNING...IT WOULD BE BEST TO
STAY INSIDE UNTIL THE SHOWERS PASS.

ANYONE OUT ON BUZZARDS BAY SHOULD EXPECT HEAVY RAIN AND CHOPPY WATER
THE NEXT HOUR AS WELL.

RW
Special weather statement, Aug 9, 3:33 PM EDT, 1 hour 12 minutes before
CTZALL-092300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARTFORD CT
330 PM EDT SUN AUG 9 1992

...THE SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR WESTERN
MASSACHUSETTS AND WESTERN CONNECTICUT UNTIL 5 PM THIS AFTERNOON...

AT 330 PM...NATIONAL WEATHER SERVICE RADAR INDICATED SEVERAL LINES OF
SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST NEW YORK STATE AND NORTHERN
NEW JERSEY.  A THUNDERSTORM WITH VERY HEAVY RAIN AND FREQUENT LIGHTNING
WAS LOCATED IN NORTHERN BERGEN COUNTY OF NEW JERSEY.  ANOTHER
THUNDERSTORM WITH LOCALLY HEAVY RAIN WAS IN ULSTER COUNTY NEW YORK NEAR
KINGSTON.

THE INDIVIDUAL CELLS WERE MOVING NORTHEAST AT 30 MPH...WHILE THE LINES
WERE MOVING SLOWLY EAST AT 15 MPH.

THE NUMEROUS SHOWERS AND THUNDERSTORMS IN EASTERN CONNECTICUT WERE
MOVING EAST AND WILL BE EXITING CONNECTICUT BY 415 PM.
ALSO SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN STRETCHED FROM EAST
HAVEN CONNECTICUT SOUTHWARD INTO CENTRAL LONG ISLAND AND WERE SHOWING A
MOVEMENT TOWARD THE EAST.

IF YOU LIVE IN OR AROUND THE WATCH AREA...STAY TUNED TO NOAA
WEATHER RADIO OR YOUR LOCAL RADIO/TV STATION FOR FURTHER UPDATES
ON THIS WEATHER SITUATION.  IF THREATENING WEATHER APPROACHES...
TAKE
COVER QUICKLY.

SEKELSKY
Special weather statement, Aug 9, 4:00 PM EDT, 45 minutes before
SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE PROVIDENCE RI
358 PM EDT SUN AUG 9 1992

...STRONG THUNDERSTORMS WERE EXITING SOUTHEAST RHODE ISLAND...

AT 355 PM...WEATHER RADAR SHOWED STRONG THUNDERSTORMS ACCOMPANIED BY
TORRENTIAL RAINS AFFECTING SOUTHEAST RHODE ISLAND FROM NEWPORT TO
LITTLE COMPTON.  THESE STORMS CONTINUED TO DUMP HEAVY RAINFALL OF
UP TO 1 INCH PER HOUR.  A SPOTTER IN NEWPORT CONTINUED TO REPORT A
CONSIDERABLE AMOUNT OF STREET FLOODING AND SOME MINOR URBAN FLOODING.
CONDITIONS WILL BEGIN TO IMPROVE BY 430 PM...AS THESE STORMS MOVE
SLOWLY INTO SOUTHEAST MASSACHUSETTS.

ELSEWHERE ACROSS RHODE ISLAND...RAIN HAD LIGHTENED UP CONSIDERABLY.
AREAS OF LIGHT RAIN CONTINUE AS FAR WEST AS THE RHODE ISLAND BORDER.
THOUGH THERE MAY BE A BRIEF BREAK IN RAIN...MORE THUNDERSTORMS WERE
HEADING EAST ACROSS COASTAL CONNECTICUT AND MAY AFFECT RHODE ISLAND
EARLY THIS EVENING.
.
IF YOU WILL BE TRAVELING TONIGHT...ALLOW EXTRA TIME F>OR THE POTENTIAL
OF MORE HEAVY RAIN.

VALLEE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 3:39 PM EDTFlash Flood WarningBOXBristol, Plymouth66 min
Aug 9, 5:45 PM EDTFlash Flood WarningBOXBristol, Plymouth60 min
Aug 9, 6:45 PM EDTFlash Flood WarningBOXBristol, Plymouth2 hr
Aug 9, 7:54 PM EDTFlash Flood WarningBOXBarnstable2 hr

Nearby

Flash Flood Warnings in Massachusetts, 1992Every flash flood warning in 1992

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.