Alert archive / Connecticut / Flash Flood Warnings in 1990

Flash Flood Warning 15, NWS New York, NY

October 14, 1990Naugatuck Valley Planning Region, Connecticut

NWS New York, NY issued this flash flood warning at Oct 14, 1990, 3:55 AM EDT for Naugatuck Valley Planning Region, Connecticut. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Oct 14, 1990, 3:55 AM EDT (07:55 UTC)
Expired
Oct 14, 1990, 8:00 AM EDT
In force
4 hr
Issued by
NWS New York, NY
Area
Whole counties

County Naugatuck Valley Planning Region, CT

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Albany, NY (KALB), launched 00:00Z, 7.9 hours before the alert went out and 144 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, Albany, NY at 00:00Z on 1990-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 510 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, Albany, NY at 00:00Z on 1990-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
510 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBDR 140758
FFWBDR
CTC007-009-141200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE BRIDGEPORT CT
355 AM EDT SUN OCT 14 1990

THE NATIONAL WEATHER SERVICE HAS EXTENDED THE FLOOD WARNING UNTIL
800 AM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHERN
CONNECTICUT....

      MIDDLESEX AND EXTREME SOUTHEAST NEW HAVEN

HEAVY RAINS OF 3 TO 5 INCHES HAVE OCCURRED IN SOUTHEAST NEW HAVEN AND
MOST OF MIDDLESEX COUNTIES OVERNIGHT.  URBAN AND SMALL STREAM FLOODING
IS OCCURRING OR IMMINENT IN THESE AREAS.

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 I_N RISING WATER SHOULD BE ABANDONED IMMEDIATELY.
.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOOD WATERS.

BINGHAM

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, Oct 14, 12:30 AM EDT, 3 hours 25 minutes before
CTZALL-140600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BRIDGEPORT CT
1230 AM EDT SUN SEP 14 1990

...A FLOOD WATCH CONTINUES IN EFFECT FOR SOUTHWEST AND SOUTH CENTRAL
CONNECTICUT OVERNIGHT...

AT 1220 AM EDT...RADAR INDICATED NUMEROUS SHOWERS AND THUNDERSTORMS...
SOME WITH LOCALLY HEAVY DOWNPOURS...OVER SOUTHEAST NEW HAVEN AND
NORTHERN MIDDLESEX COUNTIES.

HEAVIEST RAINS WERE LOCATED FROM THE SHORELINE AT GUILFORD AND MADISON
NORTH IZNTO HADDAM...EAST HADDAM...AND EAST HAMPTON.

THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN
HOUR...WHILE THE ENTIRE AREA WAS SHOWING A SLOW BUT STEADY EASTWARD
DRIFT.

BINGHAM

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 14, 1:15 AM EDTFlash Flood WarningOKXNaugatuck Valley Planning Region3 hr

Nearby

Flash Flood Warnings in Connecticut, 1990Every flash flood warning in 1990

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.