Alert archive / Rhode Island / Flash Flood Warnings in 1991
Flash Flood Warning 6, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 19, 1991, 12:54 PM EDT for Kent County, Providence County, Washington County, Rhode Island. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Aug 19, 1991, 12:54 PM EDT (16:54 UTC)
- Expired
- Aug 19, 1991, 7:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
Counties Kent County, RI, Providence County, RI, Washington County, RI
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 4.9 hours before the alert went out and 135 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.
- Mixed-layer CAPE
- 921 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 540 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPVD 191656 RRA FFWPVD RIC003-007-009-192300- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PROVIDENCE RI 1254 PM EDT MON AUG 19 1991 THE NATIONAL WEATHER SERVICE IN PROVIDENCE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 700 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL RHODE ISLAND ...WESTERN KENT COUNTY IN NORTH RHODE ISLAND ...PROVIDENCE COUNTY IN SOUTH RHODE ISLAND ...WESTERN WASHINGTON COUNTY AT 1245 PM RADAR INDICATED TORRENTIAL RAINFALL IN WESTERN WASHINGTON COUNTY FROM WESTERLY NORTH TO HOPKINTON ASSOCIATED WITH HURRICANE BOB. RAINFALL MAY EXCEED 5 INCHES IN SEVERAL HOURS. ROADS WILL BECOME FLOODED AND BEWARE OF RISING STREAMS. 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. SISSON
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 19, 7:19 AM EDT, 5 hours 35 minutes before
MAZALL-192200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BOSTON MA 720 AM EDT MON AUG 19 1991 ...TORNADO WATCH FOR SOUTHERN NEW ENGLAND... TORNADO WATCH NUMBER 736 HAS BEEN ISSUED FOR ALL OF SOUTHERN NEW ENGLAND ...EFFECTIVE TIL 6 PM EDT. WITH THE APPROACH AND PASSAGE OF HURRICANE BOB AND VERY UNSTABLE TROPICAL AIR THROUGHOUT SOUTHERN NEW ENGLAND...CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS. PERSONS IN THE WATCH AREA SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONTITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. THE NEXT STATEMENT ON THIS SITUATION WILL BE ISSUED BY THE NATIONAL WEATHER SERVICEIN BOSTON AROUND 1030 AM EDT. COTE
Nearby
Flash Flood Warnings in Rhode Island, 1991Every flash flood warning in 1991
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.