Alert archive / Connecticut / Flash Flood Warnings in 2003

Flash Flood Warning 13, NWS New York, NY

August 8, 2003Naugatuck Valley Planning Region, Connecticut

NWS New York, NY issued this flash flood warning at Aug 8, 2003, 4:37 AM EDT for Naugatuck Valley Planning Region, Connecticut. It was in force for 83 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 8, 2003, 4:37 AM EDT (08:37 UTC)
Expired
Aug 8, 2003, 6:00 AM EDT
In force
83 min
Issued by
NWS New York, NY
Area
Counties, with a storm outline in the text

County Naugatuck Valley Planning Region, CT

The radar

The Brookhaven radar (KOKX), 51 km from the middle of the area, began a volume at 08:38 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 00:00Z, 8.6 hours before the alert went out and 51 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 2003-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 560 joules per kilogram.LCLEL10008507005003002001001 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 2003-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
560 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
486 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KOKX 080839
FFWOKX
CTC009-081000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE UPTON NY
437 AM EDT FRI AUG 8 2003

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN NEW HAVEN COUNTY IN SOUTHERN CONNECTICUT

* UNTIL 600 AM EDT

* AT 437 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
VERY HEAVY RAIN OVER SOUTHERN NEW HAVEN COUNTY...ESPECIALLY JUST 
EAST OF THE CITY OF NEW HAVEN...NEAR THE TOWN OF BRANFORD. NATIONAL 
WEATHER SERVICE DOPPLER RADAR INDICATES THAT RAINFALL RATES NEAR 2 
INCHES PER HOUR ARE OCCURING WITH THESE SHOWERS AND THUNDERSTORMS.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE...  
SOUTHEAST OF A LINE FROM MILFORD TO WALLINGFORD THROUGH 600 AM.

SOME OTHER LOCATIONS IN THE WARNING INCLUDE 
ROCKLAND...BRANFORD...AND NORTH BRANFORD.

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 CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
UPTON NY.

LAT...LON 4126 7287 4129 7261 4144 7276 4136 7303

$$
EKSTER
2 follow-up statements
000 
WGUS71 KOKX 080922
FFSOKX
CTC009-081000-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE UPTON NY
520 AM EDT FRI AUG 8 2003

...A FLASH FLOOD WARNING CONTINUES UNTIL 600 AM EDT FOR SOUTHERN NEW 
HAVEN COUNTY...

AT 517 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
CLUSTER OF SHOWERS AND THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL 
OVER THE CITY OF EAST HAVEN AND BRANFORD. LOCAL LAW ENFORCEMENT 
OFFICIALS IN BRANFORD REPORTED THAT SOME STREETS ARE FLOODING...WITH 
UP TO 2 FEET OF WATER COVERING PARTS OF ROUTE 1. 

THE HEAVY RAINFALL WILL CONTINUE TO AFFECT SOUTHERN NEW HAVEN COUNTY 
UNTIL AROUND 6 AM. CITIES MOST LIKELY TO EXPEREINCE FLASH FLOODING 
ARE BRANFORD...NORTH BRANFORD...EAST HAVEN...ROCKLAND...AND NEW 
HAVEN.  

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. NEVER ATTEMPT TO CROSS HIGH WATER IN A VEHICLE OR ON FOOT

$$
EKSTER

LAT...LON 4128 7290 4126 7275 4140 7264 4142 7275
000 
WGUS71 KOKX 080959
FFSOKX
CTC009-081045-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE UPTON NY
556 AM EDT FRI AUG 8 2003

...THE FLASH FLOOD WARNING FOR SOUTHERN NEW HAVEN COUNTY WILL BE 
ALLOWED TO EXPIRE AT 600 AM...

AT 555 AM...NATIONAL WEATHER DOPPLER RADAR HAS INDICATED THAT THE 
HEAVY RAIN HAS DIMINISHED OVER THE WARNED AREA. HOWEVER...SCATTERED 
SHOWERS CONTAINING LOCALLY HEAVY DOWNPOURS MAY STILL PERSIST OVER 
SOUTHERN NEW HAVEN COUNTY UNTIL AROUND 730 AM...CAUSING LOCALIZED 
STREET FLOODING...ESPECIALLY IN THE CITIES OF NEW HAVEN...EAST 
HAVEN...BRANFORD...AND NORTH BRANFORD. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. MORNING COMMUTERS SHOULD BE ALERT FOR THE POSSIBILITY OF 
HYDROPLANING.

$$
EKSTER

LAT...LON 4126 7294 4127 7274 4134 7263 4141 7275

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 1:08 AM EDTFlash Flood WarningOKXLower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region97 min

Nearby

Flash Flood Warnings in Connecticut, 2003Every flash flood warning in 2003

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.