Alert archive / Connecticut / Flash Flood Warnings in 2013

Flash Flood Warning 52, NWS Boston/Norton, MA

September 2, 2013Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this flash flood warning at Sep 2, 2013, 11:36 AM EDT for Capitol Planning Region, Connecticut. It was in force for 114 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Sep 2, 2013, 11:36 AM EDT (15:36 UTC)
Expired
Sep 2, 2013, 1:30 PM EDT
In force
114 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Flood severity
None

County Capitol Planning Region, CT

The radar

The Brookhaven radar (KOKX), 97 km from the middle of the area, began a volume at 15:38 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.

What was reported inside it

TimeReportWhereRemark
Sep 2, 12:10 PM EDTFLOODNew Britain, CTSEVERAL STREETS FLOODED WITH 4 TO 8 INCHES OF WATER. A CAR WAS STUCK IN FLOOD WATERS ON GOLDEN HILL STREET.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 3.6 hours before the alert went out and 97 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 2013-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 791 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 2013-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
791 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
538 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

751 
WGUS51 KBOX 021536
FFWBOX
CTC003-021730-
/O.NEW.KBOX.FF.W.0052.130902T1536Z-130902T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1136 AM EDT MON SEP 2 2013

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HARTFORD COUNTY IN NORTHERN CONNECTICUT...

* UNTIL 130 PM EDT

* AT 1133 AM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
  HEAVY RAIN ACROSS THE CENTRAL AND SOUTHERN HARTFORD COUNTY. THESE 
  THUNDERSTORMS CAN PRODUCE RAINFALL OF 1 TO 2 INCHES PER HOUR.
  
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HARTFORD...NEW BRITAIN...WEST HARTFORD...BRISTOL...MANCHESTER... 
  ENFIELD...SOUTHINGTON...GLASTONBURY...NEWINGTON... 
  WINDSOR...WETHERSFIELD...SOUTH WINDSOR...FARMINGTON...SIMSBURY... 
  BLOOMFIELD...BERLIN...ROCKY HILL...AVON...PLAINVILLE...WINDSOR 
  LOCKS...EAST WINDSOR...CANTON AND BURLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN VEHICLES. TURN AROUND...DONT DROWN.

A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.

&&

LAT...LON 4195 7256 4168 7249 4163 7267 4163 7271
      4162 7272 4156 7292 4179 7299

$$

AED

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 4:21 AM EDTFlash Flood WatchBOXCapitol Planning Region, Northeastern Connecticut Planning Region21 hr
Sep 2, 11:33 AM EDTSpecial Weather StatementBOX42 min

Nearby

Flash Flood Warnings in Connecticut, 2013Every flash flood warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.