Alert archive / Connecticut / Flash Flood Warnings in 2006

Flash Flood Warning 7, NWS Boston/Norton, MA

June 23, 2006Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this flash flood warning at Jun 23, 2006, 3:56 PM EDT for Northeastern Connecticut Planning Region, Connecticut. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2006, 3:56 PM EDT (19:56 UTC)
Expired
Jun 23, 2006, 8:00 PM EDT
In force
4 hr
Issued by
NWS Boston/Norton, MA
Area
Counties, with a storm outline in the text

County Northeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 89 km from the middle of the area, began a volume at 19:58 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, 7.9 hours before the alert went out and 122 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 2006-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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 2006-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939Sfc1 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
22 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
1315 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KBOX 231958
FFWBOX
CTC013-015-240000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
356 PM EDT FRI JUN 23 2006

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL TOLLAND COUNTY IN NORTHERN CONNECTICUT
  THIS INCLUDES THE CITY OF MANSFIELD
  NORTHERN WINDHAM COUNTY IN NORTHERN CONNECTICUT
  THIS INCLUDES THE CITY OF PUTNAM

* UNTIL 800 PM EDT

* AT 354 PM EDT...THUNDERSTORMS WERE REDEVELOPING AND MOVING OVER
  PORTIONS OF TOLLAND AND WINDHAM COUNTIES FROM VERNON TO THOMPSON.
  THE AREA WAS ONLY DRIFTING SOUTHEAST.  A NATIONAL WEATHER SERVICE
  SKYWARN SPOTTER INDICATED 3.62 INCHES IN JUST 45 MINUTES. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  KILLINGLY...WOODSTOCK...WILLINGTON...TOLLAND...THOMPSON...
  POMFRET...ELLINGTON...EASTFORD AND ASHFORD

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.

LAT...LON 4174 7245 4178 7179 4202 7180 4192 7249

$$

VALLEE
2 follow-up statements
000 
WGUS71 KBOX 232059
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
455 PM EDT FRI JUN 23 2006

CTC013-015-240000-
TOLLAND CT-WINDHAM CT-
455 PM EDT FRI JUN 23 2006

...A FLASH FLOOD WARNING CONTINUES UNTIL 800 PM EDT FOR WINDHAM AND
TOLLAND COUNTIES...

AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS WITH TORRENTIAL RAINFALL STRETCHING FROM 
BOLTON TO WILLINGTON EAST TO WOODSTOCK AND PUTNAM.  WHILE THE LINE 
HAS DRIFTED SOUTHWARD IN THE PAST HOUR...NEW STORMS CONTINUE TO 
DEVELOP TO THE SOUTHWEST AND WILL MOVE ACROSS TOLLAND AND WINDHAM 
COUNTIES THIS EVENING. 

SMALL RIVER BASINS WHICH HAVE RECEIVED TORRENTIAL RAINFALL INCLUDE 
OGDEN BROOK...THE TANKERHOOSEN RIVER AND THE HOP RIVER.  SMALL RIVER 
BASINS LIKELY TO EXPERIENCE HEAVY RAINFALL IN THE NEXT FEW HOURS 
INCLUDE THE MOUNT HOPE RIVER...THE BEAR SWAMP RIVER AND THE HOP 
RIVER BASIN.  

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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.

$$

VALLEE
000 
WGUS71 KBOX 232219
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
618 PM EDT FRI JUN 23 2006

CTC013-015-240000-
TOLLAND CT-WINDHAM CT-
618 PM EDT FRI JUN 23 2006

...A FLASH FLOOD WARNING CONTINUES UNTIL 800 PM EDT FOR WINDHAM AND
TOLLAND COUNTIES...

AT 615 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES 
THAT SHOWERS AND THUNDERSTORMS...WHICH HAVE BEEN AFFECTING TOLLAND 
AND WINDHAM COUNTIES...ARE WEAKENING AS THEY MOVE SLOWLY EAST.  
HOWEVER...WHILE RAINFALL RATES HAVE DIMINISHED THE RUNOFF FROM OVER 
5 INCHES OF RAINFALL IN JUST A FEW HOURS WILL CONTINUE TO RUNOFF 
RAPIDLY INTO AREA SMALL RIVERS AND STREAMS PRODUCING SOME LOCALIZED 
FLASH FLOODING. 

AREAS HARDEST HIT BY HEAVY RAINS INCLUDE THE TOWNS IN THE FOLLOWING
RIVER BASINS...OGDEN BROOK...THE TANKERHOOSEN AND HOP RIVER BASINS 
AS WELL AS THE MOUNT HOPE BASIN. 

SHOWERS DO EXTEND SOUTHWEST INTO NEW HAVEN COUNTY...BUT RAINFALL 
RATES ARE SIGNIFICANTLY LOWER.  A SKYWARN SPOTTER IN TOLLAND 
CONNECTICUT REPORTED 4.53 INCHES IN 1.5 HOURS THIS AFTERNOON.

PEOPLE WITH INTERESTS IN THE WARNING AREA SHOULD STAY TUNED TO NOAA 
WEATHER RADIO FOR THE LATEST ON THIS EVOLVING FLOOD EVENT.

$$

VALLEE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 5:00 AM EDTFlood WatchBOXCapitol Planning Region, Northeastern Connecticut Planning Region60 hr
Jun 23, 2:52 PM EDTSevere Thunderstorm WarningBOX23 min
Jun 23, 4:07 PM EDTSevere Thunderstorm WarningBOX23 min

Nearby

Flash Flood Warnings in Connecticut, 2006Every flash flood warning in 2006

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.