Alert archive / Connecticut / Flash Flood Warnings in 1997

Flash Flood Warning 4, NWS New York, NY

July 9, 1997Greater Bridgeport Planning Region, Connecticut

NWS New York, NY issued this flash flood warning at Jul 9, 1997, 6:03 PM EDT for Greater Bridgeport Planning Region, Connecticut. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 9, 1997, 6:03 PM EDT (22:03 UTC)
Expired
Jul 9, 1997, 8:00 PM EDT
In force
117 min
Issued by
NWS New York, NY
Area
Whole counties

County Greater Bridgeport Planning Region, CT

The radar

The Brookhaven radar (KOKX), 52 km from the middle of the area, began a volume at 22:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.1 hours before the alert went out and 52 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 1997-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 64 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, Brookhaven, NY at 12:00Z on 1997-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
64 J/kg
Mixed-layer CIN
-104 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KNYC 092205
FFWNYC
CTC001-100000-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
603 PM EDT WED JUL 9 1997
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  800 PM EDT
FOR THE PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST CONNECTICUT
 
   ...NORTHERN FAIRFIELD COUNTY
 
AT 600 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF
THUNDERSTORMS MOVING ACROSS NORTHERN PORTIONS OF THE COUNTY. THESE
THUNDERSTORMS ARE MOVING OVER AREAS THAT RECEIVED BETWEEN 2 AND 3 INCHES
OF RAIN EARLIER IN THE AFTERNOON.
 
BE ON THE ALERT FOR FLOODING ALONG STREAMS AND RIVERS...AS WELL AS LOW
LYING AREAS.
 
MOVEMENT OF THE STORMS WAS EAST AT 20 TO 25 MILES AN HOUR.
 
MOST DEATHS IN FLASH FLOODING 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,.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 3:30 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region60 min
Jul 9, 3:58 PM EDTSevere Thunderstorm WarningOKXNaugatuck Valley Planning Region62 min
Jul 9, 4:28 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region62 min
Jul 9, 5:11 PM EDTFlash Flood WarningOKXNaugatuck Valley Planning Region64 min
Jul 9, 5:11 PM EDTSevere Thunderstorm WarningOKXNaugatuck Valley Planning Region64 min
Jul 9, 6:12 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region63 min
Jul 9, 6:14 PM EDTSevere Thunderstorm WarningOKXNaugatuck Valley Planning Region61 min

Nearby

Flash Flood Warnings in Connecticut, 1997Every flash flood warning in 1997

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; radar from the NEXRAD Level II archive.