Alert archive / Rhode Island / Flash Flood Warnings in 1998

Flash Flood Warning 2, NWS Boston/Norton, MA

February 18, 1998Bristol County, Rhode Island

NWS Boston/Norton, MA issued this flash flood warning at Feb 18, 1998, 8:25 AM EST for Bristol County, Rhode Island. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 18, 1998, 8:25 AM EST (13:25 UTC)
Expired
Feb 18, 1998, 11:30 AM EST
In force
3 hr
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Bristol County, RI

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 1.4 hours before the alert went out and 109 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 1998-02-18Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 1998-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.1939587897Sfc1 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
488 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBOS 181326
FFWBOS
MAC005-RIC001-005-181630-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
825 AM EST WED FEB 18 1998
 
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1130 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST MASSACHUSETTS
 
   ...BRISTOL COUNTY
 
 
IN EAST CENTRAL RHODE ISLAND
 
   ...BRISTOL COUNTY
 
IN SOUTH RHODE ISLAND
 
   ...NEWPORT COUNTY
 
HEAVY RAINFALL AS HIGH AS 3.1 INCHES HAS CAUSED THE MAIDFORD RIVER IN
MIDDLETOWN RHODE ISLAND TO GO OVER ITS BANKS AND FLOOD PARADISE AVENUE.
OTHER SMALL STREAMS IN SOUTHEAST RHODE ISLAND AND BRISTOL COUNTY IN
SOUTHEAST MASSACHUSETTS WILL LIKELY OVERFLOW. AN ADDITIONAL HALF TO EVEN
AN INCH OF RAIN WILL FALL IN THIS AREA DURING THE MORNING.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUTGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
YOUNG/THOMPSON
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 18, 8:25 AM ESTFlash Flood WarningBOXNewport3 hr

Nearby

Flash Flood Warnings in Rhode Island, 1998Every flash flood warning in 1998

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.