Alert archive / Connecticut / Flash Flood Warnings in 2003

Flash Flood Warning 1, NWS Boston/Norton, MA

May 28, 2003Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this flash flood warning at May 28, 2003, 5:20 PM EDT for Capitol Planning Region, Connecticut. It was in force for 115 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: May 28, 2003, 5:20 PM EDT (21:20 UTC)
Expired: May 28, 2003, 7:15 PM EDT
In force: 115 min
Issued by: NWS Boston/Norton, MA
Area: Whole counties

County Capitol Planning Region, CT

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.3 hours before the alert went out and 109 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 737 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 11 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 282121
FFWBOX
CTC003-282315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
520 PM EDT WED MAY 28 2003

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL HARTFORD COUNTY IN NORTHERN CONNECTICUT
    INCLUDING WEST HARTFORD...NEWINGTON...MANCHESTER...HARTFORD...
    EAST HARTFORD

* UNTIL 715 PM EDT.

* AT 520 PM EDT...SKYWARN WEATHER SPOTTERS REPORTED THAT FLASH   
FLOODING WAS OCCURRING IN URBAN AREAS OF THE BLOOMFIELD AREA. CARS 
WERE REPORTED SUBMERGED DUE TO EXCESSIVE RAINS IN A SHORT PERIOD OF 
TIME. TRAINING SHOWERS AND THUNDERSTORMS HAVE BEEN MOVING OVER 
CENTRAL HARTFORD COUNTY. THE SHOWERS WERE MOVING EAST AT 25 MPH. 
ADDITIONAL SHOWERS AND THUNDERSTORMS MAY PRODUCE AN EXTRA INCH OF 
RAIN IN CENTRAL HARTFORD COUNTY INCLUDING THE BLOOMFIELD...WEST 
HARTFORD...AND HARTFORD AREAS THROUGH 615 PM. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.

THE HEAVY RAINFALL AND SLOW MOVEMENT OF THESE STORMS MAY RESULT IN
FLOODING OF ROAD INTERSECTIONS AND LOW LYING AREAS...INCLUDING
UNDERPASSES AND TUNNELS. KNOW ALTERNATE ROUTES FOR TRAVEL IN CASE
ROADS BECOME IMPASSABLE.

$$

LAT...LON 4182 7295 4193 7252 4181 7251 4171 7247
          4166 7289

NMB

2 follow-up statements

000 
WGUS71 KBOX 282212
FFSBOX
CTC003-282315-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
610 PM EDT WED MAY 28 2003

...A FLASH FLOOD WARNING REMAINS IN EFFECT IN CENTRAL HARTFORD 
COUNTY IN NORTHERN CONNECTICUT UNTIL 715 PM EDT...

TRAINING SHOWERS AND THUNDERSTORMS PRODUCED EXCESSIVE RAINFALL LATE 
THIS AFTERNOON. THIS IS RESULTING IN FLASH FLOODING IN CENTRAL 
HARTFORD COUNTY.  CARS HAVE BEEN REPORTED SUBMERGED ON ROADWAYS IN 
THE BLOOMFIELD AND HARTFORD AREAS. 

WIDESPREAD LIGHT TO MODERATE RAIN IS EXPECTED TO PERSIST ACROSS THE 
AREA THROUGH 7 PM...WITH RAINFALL AMOUNTS OF UP TO AN ADDITIONAL 
HALF OF AN INCH BETWEEN 6 AND 7 PM. AS A RESULT...URBAN FLASH 
FLOODING WILL REMAIN LIKELY IN CENTRAL HARTFORD COUNTY UNTIL 715 PM. 

LIGHTER RAIN IS THEN EXPECTED TO TAPER OFF ACROSS MUCH OF CENTRAL 
HARTFORD COUNTY TOWARDS 730 PM. 

THE HEAVY RAINFALL AND SLOW MOVEMENT OF THESE STORMS MAY RESULT IN 
FLOODING OF ROAD INTERSECTIONS AND LOW LYING AREAS...INCLUDING 
UNDERPASSES AND TUNNELS. KNOW ALTERNATE ROUTES FOR TRAVEL IN CASE 
ROADS BECOME IMPASSABLE.

DO NOT ATTEMPT TO WALK OR DRIVE THROUGH ANY FLOWING WATER BECAUSE 
OBJECTS AS HEAVY AS AN AUTOMOBILE CAN EASILY BE SWEPT AWAY.

$$

BELK

000 
WGUS71 KBOX 282324
FFSBOX
CTC003-290015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
720 PM EDT WED MAY 28 2003

...THE FLASH FLOOD WARNING FOR CENTRAL HARTFORD COUNTY HAS BEEN 
ALLOWED TO EXPIRE...

WHILE LIGHT SHOWERS AND A FEW MODERATE SHOWERS WILL REMAIN POSSIBLE 
IN CENTRAL HARTFORD COUNTY EARLY THIS EVENING...THE STEADY TRAINING 
THUNDERSTORMS EXPERIENCED EARLIER IS COMING TO AN END. 

MINOR FLOODING ACROSS URBAN AREAS AND SMALL STREAMS WILL REMAIN 
POSSIBLE EARLY THIS EVENING. HOWEVER...WITH THE HEAVY RAINFALL 
OVER...THESE FLOODWATERS ARE EXPECTED TO CONTINUE TO RECEDE.
AS A RESULT...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. 

NEVER ATTEMPT TO CROSS BRIDGES OR ROADS WHERE WATER COVERS THE 
ROADWAY. IT ONLY TAKES A FOOT OR TWO OF WATER TO WASH MOST CARS AWAY.

$$

NMB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 4:56 PM EDT	Severe Thunderstorm Warning	BOX	Capitol Planning Region	34 min

Nearby

Flash Flood Warnings in Connecticut, 2003 Every 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.