Alert archive / Connecticut / Flash Flood Warnings in 1998

Flash Flood Warning 10, NWS Boston/Norton, MA

March 9, 1998Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this flash flood warning at Mar 9, 1998, 8:28 AM EST for Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It was in force for 6 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
Mar 9, 1998, 8:28 AM EST (13:28 UTC)
Expired
Mar 9, 1998, 2:30 PM EST
In force
6 hr
Issued by
NWS Boston/Norton, MA
Area
Whole counties

Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 1.5 hours before the alert went out and 117 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, Brookhaven, NY at 12:00Z on 1998-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 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, Brookhaven, NY at 12:00Z on 1998-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 332 square meters per square second.19395878Sfc1 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
4 J/kg
Mixed-layer CIN
-208 J/kg
Mixed-layer LCL
489 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
332 m²/s²
0-3 km storm-relative helicity
334 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 091330
FFWBOS
CTC003-013-015-091930-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
828 AM EST MON MAR 9 1998
 
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  230 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL CONNECTICUT
 
   ...HARTFORD COUNTY...TOLLAND COUNTY
 
IN NORTHEAST CONNECTICUT
 
   ...WINDHAM COUNTY
 
AT 825 AM...BANDS OF HEAVY RAIN CONTINUED TO PROGRESS THROUGH
CONNECTICUT WHERE RAINFALL OF 2 TO 2.5 INCHES HAS BEEN REPORTED. IN
ELLINGTON...THE BROAD BROOK WAS REPORTED TO BE RISING OUT OF ITS BANKS.
RUNOFF FROM FALLEN RAINFALL WILL CONTINUE TO CAUSE RIVERS AND STREAMS TO
RISE OUT OF BANKS.  FURTHER RAINFALL WILL ONLY AGGRAVATE THE
SITUATION AS THE DAY PROGRESSES.
 
A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
 
VALLEE
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 9, 2:24 PM ESTFlash Flood WarningBOXCapitol Planning Region, Northeastern Connecticut Planning Region4 hr
Mar 9, 6:08 PM ESTFlash Flood WarningBOXCapitol Planning Region5 hr
Mar 9, 6:08 PM ESTFlash Flood WarningBOXNortheastern Connecticut Planning Region5 hr

Nearby

Flash Flood Warnings in Connecticut, 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.