Alert archive / Connecticut / Flash Flood Warnings in 2017
Flash Flood Warning 20, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 2, 2017, 4:44 PM EDT for Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It was in force for 3 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
- Aug 2, 2017, 4:44 PM EDT (20:44 UTC)
- Expired
- Aug 2, 2017, 7:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT
The radar
The Boston radar (KBOX), 107 km from the middle of the area, began a volume at 20:48 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, 8.7 hours before the alert went out and 113 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
- 823 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 1051 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
941
WGUS51 KBOX 022044
FFWBOX
CTC003-013-015-022345-
/O.NEW.KBOX.FF.W.0020.170802T2044Z-170802T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Taunton MA
444 PM EDT WED AUG 2 2017
The National Weather Service in Taunton has issued a
* Flash Flood Warning for...
West central Windham County in northern Connecticut...
Central Tolland County in northern Connecticut...
Northeastern Hartford County in northern Connecticut...
* Until 745 PM EDT
* At 443 PM EDT, Doppler radar indicated thunderstorms producing
torrential rain across north central Connecticut. Flash flooding
is expected to begin shortly, including rapid inundation of roads
and underpasses. Several locations have already picked up over 2
inches of rain in the past hour.
* Some locations that will experience flooding include...
Hartford, Manchester, East Hartford, Glastonbury, Vernon, Windsor,
Wethersfield, Mansfield, South Windsor, Windham, Ellington,
Tolland, Windsor Locks, Coventry, East Windsor, Hebron, Willington,
Columbia, Bolton and Ashford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flash Flood Warning means that flooding will occur quickly, and
could be life threatening for those who try to drive through flooded
roads or underpasses. Find alternate routes. Those near small streams
need to get to higher ground immediately.
&&
LAT...LON 4193 7266 4194 7209 4174 7210 4172 7236
4171 7265
$$
JWD1 follow-up statement
839
WGUS71 KBOX 022201
FFSBOX
Flash Flood Statement
National Weather Service Taunton MA
601 PM EDT WED AUG 2 2017
CTC003-013-015-022210-
/O.CAN.KBOX.FF.W.0020.000000T0000Z-170802T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Windham CT-Tolland CT-Hartford CT-
601 PM EDT WED AUG 2 2017
...THE FLASH FLOOD WARNING FOR WEST CENTRAL WINDHAM...CENTRAL TOLLAND
AND NORTHEASTERN HARTFORD COUNTIES IS CANCELLED...
As of 6 PM, the heavy rain has moved into southern Connecticut. Rain
will continue into this evening, but flooding is no longer expected
to pose a threat. Avoid flooded roadways.
&&
LAT...LON 4193 7266 4194 7209 4174 7210 4172 7236
4171 7265
$$
JWDThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 11:55 AM EDT | Flash Flood Watch | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 8 hr |
| Aug 2, 1:07 PM EDT | Special Weather Statement | BOX | 23 min | |
| Aug 2, 1:11 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 49 min |
| Aug 2, 1:45 PM EDT | Special Weather Statement | BOX | 45 min | |
| Aug 2, 2:45 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 45 min |
| Aug 2, 2:54 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 51 min |
| Aug 2, 3:10 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 50 min |
| Aug 2, 3:56 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 49 min |
| Aug 2, 4:56 PM EDT | Special Weather Statement | BOX | 49 min |
Nearby
Flash Flood Warnings in Connecticut, 2017Every flash flood warning in 2017
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.