Alert archive / Connecticut / Flash Flood Warnings in 2012
Flash Flood Warning 20, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 15, 2012, 5:59 PM EDT for Capitol Planning Region, Connecticut. It was in force for 68 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 15, 2012, 5:59 PM EDT (21:59 UTC)
- Expired
- Aug 15, 2012, 7:07 PM EDT
- In force
- 68 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
County Capitol Planning Region, CT
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 105 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.
- Mixed-layer CAPE
- 1897 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 686 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
526
WGUS51 KBOX 152159
FFWBOX
CTC003-160100-
/O.NEW.KBOX.FF.W.0020.120815T2159Z-120816T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
559 PM EDT WED AUG 15 2012
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WEST CENTRAL HARTFORD COUNTY IN NORTHERN CONNECTICUT...
THIS INCLUDES THE CITY OF BRISTOL...
* UNTIL 900 PM EDT
* AT 555 PM EDT...THUNDERSTORMS WITH TORRENTIAL RAINFALL WERE LINING
UP FROM CANTON TO BURLINGTON...AND WERE MOVING SLOWLY SOUTHEAST AT
10 MPH. DOPPLER RADAR ESTIMATES RAINFALL RATES OF 2 TO 3 INCHES
PER HOUR...WHICH IS ENOUGH TO CAUSE FLASH FLOODING OF STREAMS AND
URBAN AREAS.
THIS INCLUDES...BUT IS NOT LIMITED TO...THE WEST BRANCH OF THE
FARMINGTON RIVER...PHELPS BROOK...BURLINGTON BROOK AND CHERRY
BROOK.
FLASH FLOODING OF SMALL STREAMS AND URBAN AREAS IS OCCURRING OR
IMMINENT. THOSE NEAR STREAMS AND CREEKS...OR IN AREAS PRONE TO
FLOODING SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. AVOID FLOODED
ROADS. THE WATER MAY BE TOO DEEP TO ALLOW VEHICLES TO CROSS SAFELY...
OR THE ROADWAY MAY BE UNDERMINED. TURN AROUND...DONT DROWN!
&&
LAT...LON 4181 7295 4184 7295 4185 7296 4186 7296
4189 7295 4191 7279 4166 7280 4165 7299
4177 7302 4180 7302
$$
JWD1 follow-up statement
730
WGUS71 KBOX 152307
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
707 PM EDT WED AUG 15 2012
CTC003-152317-
/O.CAN.KBOX.FF.W.0020.000000T0000Z-120816T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARTFORD CT-
707 PM EDT WED AUG 15 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WEST CENTRAL
HARTFORD COUNTY...
HEAVY RAINFALL HAS ENDED IN WESTERN HARTFORD COUNTY AND THERE IS NO
LONGER THE THREAT OF FLASH FLOODING.
&&
LAT...LON 4181 7295 4184 7295 4185 7296 4186 7296
4189 7295 4191 7279 4166 7280 4165 7299
4177 7302 4180 7302
$$
JWDThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 3:48 AM EDT | Areal Flood Advisory | BOX | Capitol Planning Region | 3 hr |
| Aug 15, 5:16 AM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 44 min |
| Aug 15, 5:28 AM EDT | Areal Flood Advisory | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 3 hr |
| Aug 15, 6:58 AM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 113 min |
| Aug 15, 5:43 PM EDT | Special Weather Statement | BOX | 62 min |
Nearby
Flash Flood Warnings in Connecticut, 2012Every flash flood warning in 2012
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.