Alert archive / Massachusetts / Flash Flood Warnings in 1992

Flash Flood Warning 8, NWS Boston/Norton, MA

August 9, 1992Bristol County, Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this flash flood warning at Aug 9, 1992, 5:45 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, 5:45 PM EDT (21:45 UTC)
Expired
Aug 9, 1992, 6:45 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, 9.8 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 092148
FFWBOS
MAC023-005-092245-

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

THE NATIONAL WEATHER SERVICE IN BOSTON HAS CONTINUED THE
FLASH FLOOD WARNING EFFECTIVE UNTIL  645 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN EAST MASSACHUSETTS

   ...SOUTHWESTERN PLYMOUTH COUNTY

IN SOUTHEAST MASSACHUSETTS

   ...BRISTOL COUNTY

RAIN CONTINUES TO FALL ALONG THE SOUTH COAST OF MASSACHUSETTS.  SINCE
ROADS ARE STILL FLOODED IN MANY AREAS ALONG THE COAST AND ADDITIONAL
RAIN WILL FALL...THE FLOOD WATERS WILL BE SLOW TO GO DOWN.

THE RAIN EXTENDS BACK TO ABOUT STONINGTON CONNECTICUT.  THIS BACK
EDGE OF THE RAIN IS SLOWLY MOVING EAST AND WILL END EARLY TONIGHT.

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 ROADWAbY.  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, 3:33 PM EDT, 2 hours 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, 1 hour 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
Special weather statement, Aug 9, 5:04 PM EDT, 41 minutes before
SPECIAL WEATHER STATMENT
NATIONAL WEATHER SERVICE PROVIDENCE RI
503 PM EDT SUN AUG 9 1992

...THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUE TO AFFECT THE RHODE
ISLAND COAST...

AT 450 PM...WEATHER RADAR SHOWED STRONG THUNDERSTORMS ACCOMPANIED BY
TORRENTIAL RAINS AFFECTING MUCH OF COASTAL RHODE ISLAND OVER WASHINGTON
AND NEWPORT COUNTIES.  THESE STORMS HAVE DUMPED VERY HEAVY AMOUNTS OF
RAIN...ESPECIALLY OVER NEWPORT COUNTY RESULTING IN STREET FLOODING.  A
WEATHER SPOTTER IN ADAMSVILLE REPORTED 2.1 INCHES OF RAIN IN 1 HOUR
BETWEEN 3 AND 4 PM.  ANOTHER SPOTTER IN TIVERTON REPORTED 3 INCHES IN
A 2 HOUR PERIOD BETWEEN 230 AND 430 PM.

THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 15 TO 20 MPH...AND
OCCASIONAL TORRENTIAL DOWNPOURS WILL CONTINUE TO AFFECT WASHINGTON AND
NEWPORT COUNTIES THROUGH 6 PM.

IF YOU ARE TRAVELING ACROSS THE RHODE ISLAND COAST EARLY THIS EVENING...
USE EXTRA CAUTION AND TIME DUE TO VERY HEAVY RAIN AND FLOODED ROADS.

CADIMA
Special weather statement, Aug 9, 5:25 PM EDT, 20 minutes before
CTZALL-092300-

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

...THE SEVERE THUNDERSTORM WATCH CONTINUES FOR WESTERN MASSACHUSETTS
AND WESTERN CONNECTICUT HAS EXPIRED...

AT 525 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST NEW LONDON COUNTY.
TORRENTIAL DOWNPOURS HAVE CAUSED SOME POOR DRAINAGE PROBLEMS IN THE
NEW LONDON AND GROTON AREA AND ON UP INTO NORWICH.  THE MOVEMENT OF
PRECIPITATION HAS BEEN EAST AT 15 MILE AN HOUR.

OTHER SHOWERS AND A FEW THUNDERSTORMS WERE MOVING ACROSS LITCHFIELD
COUNTY.  BRIEF HEAVY DOWNPOURS CAN BE EXPECTED AS THIS LINE CONTINUES
TO MOVE EASTWARD ACROSS NORTHWEST CONNECTICUT.

DO NOT ATTEMPT TO CROSS ROADWAYS IF WATER COVERS THE ROADS.
SEKELSKY
Special weather statement, Aug 9, 5:30 PM EDT, 15 minutes before
CTZALL-092300-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE HARTFORD CT
525 PM EDT SUN AUG 9 1992

...THE SEVERE THUNDERSTORM WATCH CONTINUES FOR WESTERN MASSACHUSETTS
AND WESTERN CONNECTICUT HAS EXPIRED...

AT 525 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST NEW LONDON COUNTY.
TORRENTIAL DOWNPOURS HAVE CAUSED SOME POOR DRAINAGE PROBLEMS IN THE
NEW LONDON AND GROTON AREA AND ON UP INTO NORWICH.  THE MOVEMENT OF
PRECIPITATION HAS BEEN EAST AT 15 MILE AN HOUR.

OTHER SHOWERS AND A FEW THUNDERSTORMS WERE MOVING ACROSS LITCHFIELD
COUNTY.  BRIEF HEAVY DOWNPOURS CAN BE EXPECTED AS THIS LINE CONTINUES
TO MOVE EASTWARD AC6ROSS NORTHWEST CONNECTICUT.

DO NOT ATTEMPT TO CROSS ROADWAYS IF WATER COVERS THE ROADS.
SEKELSKY
...CORRECTED FOR HEADER...
Special weather statement, Aug 9, 5:32 PM EDT, 13 minutes before
CTZALL-092300-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE HARTFORD CT
525 PM EDT SUN AUG 9 1992

...THE SEVERE THUNDERSTORM WATCH FOR WESTERN MASSACHUSETTS
AND WESTERN CONNECTICUT HAS EXPIRED...

AT 525 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST NEW LONDON COUNTY.
TORRENTIAL DOWNPOURS HAVE CAUSED SOME POOR DRAINAGE PROBLEMS IN THE
NEW LONDON AND GROTON AREA AND ON UP INTO NORWICH.  THE MOVEMENT OF
PRECIPITATION HAS BEEN EAST AT 15 MILE AN HOUR.

OTHER SHOWERS AND A FEW THUNDERSTORMS WERE MOVING ACROSS LITCHFIELD
COUNTY.  BRIEF HEAVY DOWNPOURS CAN BE EXPECTED AS THIS LINE CONTINUES
TO MOVE EASTWARD ACROSS NORTHBWEST CONNECTICUT.

DO NOT ATTEMPT TO CROSS ROADWAYS IF WATER COVERS THE ROADS.
SEKELSKY
...CORRECTED FOR HEADER...

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, 4:45 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.