Alert archive / Connecticut / Flash Flood Warnings in 2000

Flash Flood Warning 25, NWS New York, NY

August 12, 2000Greater Bridgeport Planning Region, Naugatuck Valley Planning Region, Connecticut

NWS New York, NY issued this flash flood warning at Aug 12, 2000, 12:43 AM EDT for Greater Bridgeport Planning Region, Naugatuck Valley Planning Region, Connecticut. 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
Aug 12, 2000, 12:43 AM EDT (04:43 UTC)
Expired
Aug 12, 2000, 4:00 AM EDT
In force
3 hr
Issued by
NWS New York, NY
Area
Whole counties

Counties Greater Bridgeport Planning Region, CT, Naugatuck Valley Planning Region, CT

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 4.7 hours before the alert went out and 63 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 00:00Z on 2000-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 383 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 00:00Z on 2000-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
383 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
984 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KOKX 120450 COR
FFWNYC
CTC001-009-120800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1243 AM EDT SAT AUG 12 2000

THE NATIONAL WEATHER SERVICE IN UPTON NY EXTENDS THE

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...

  IN SOUTHERN CONNECTICUT...
     WESTERN NEW HAVEN...
     EASTERN FAIRFIELD...

* UNTIL 400 AM EDT...

* AT 1230 AM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  CLUSTER OF   SHOWERS AND THUNDERSTORMS OVER EASTERN FAIRFIELD AND
  WESTERN NEW HAVEN COUNTY SHOWING LITTLE MOVEMENT AND DUMPING
  TORRENTIAL RAINFALL. DOPPLER RADAR ESTIMATES THAT 4 TO 6 INCHES OF
  RAIN HAS FALLEN OVER EXTREME SOUTHEASTERN FAIRFIELD COUNTY INTO 
  EXTREME SOUTHWESTERN NEW HAVEN WITH ISOLATED AMOUNTS OF UP TO 8
  INCHES. 

  THE BRIDGEPORT POLICE DEPARTMENT REPORTED WIDESPREAD FLOODING IN
  BRIDGEPORT AND STRATFORD. WATER LEVELS WHERE UP TO CAR WINDOWS AND
  PEOPLE WERE TRAPPED IN HIGH WATER. 
  
  DOPPLER RADAR INDICATES THE HEAVIEST RAINFALL WAS MOVING GRADUALLY
  EASTWARD. IT WILL TAKE SEVERAL HOURS FOR FLOOD WATERS TO RECEDE
  ONCE THE RAIN HAS ENDED.   
  
EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS...STREETS AND UNDERPASSES.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS.

$$

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY 
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECASTX 
OFFICE IN UPTON NY.

LAT...LON 4142 7299 4122 7289 4107 7333 4132 7335


...CORRECTED TYPOS IN FIRST PARAGRAPH...

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 11:19 PM EDTFlash Flood WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region86 min
Aug 12, 2:17 AM EDTFlash Flood WarningOKXGreater Bridgeport Planning Region3 hr

Nearby

Flash Flood Warnings in Connecticut, 2000Every flash flood warning in 2000

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.