Alert archive / Connecticut / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 72, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 23, 2017, 12:13 AM EDT for Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It was in force for 19 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 23, 2017, 12:13 AM EDT (04:13 UTC)
- Expired
- Aug 23, 2017, 12:32 AM EDT
- In force
- 19 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT
The radar
The Brookhaven radar (KOKX), 89 km from the middle of the area, began a volume at 04:14 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 00:00Z, 4.2 hours before the alert went out and 89 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
- 1278 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 845 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 4.6
The text
As transmitted.
341
WUUS51 KBOX 230413
SVRBOX
CTC003-013-015-230500-
/O.NEW.KBOX.SV.W.0072.170823T0413Z-170823T0500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Taunton MA
1213 AM EDT WED AUG 23 2017
The National Weather Service in Taunton has issued a
* Severe Thunderstorm Warning for...
Southwestern Windham County in northern Connecticut...
Southern Tolland County in northern Connecticut...
Southern Hartford County in northern Connecticut...
* Until 100 AM EDT
* At 1213 AM EDT, a severe thunderstorm was located over Wolcott,
moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Hartford, New Britain, West Hartford, Meriden, Bristol, Manchester,
East Hartford, Middletown, Southington, Glastonbury, Newington,
Vernon, Wethersfield, Mansfield, South Windsor, Farmington,
Windham, Wolcott, Colchester and Berlin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4187 7240 4163 7194 4166 7216 4171 7224
4164 7233 4160 7234 4158 7246 4165 7251
4164 7266 4163 7271 4160 7272 4155 7282
4157 7285 4155 7285 4156 7288 4156 7294
4163 7293 4164 7298 4170 7300
TIME...MOT...LOC 0413Z 255DEG 40KT 4161 7294
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
Nocera1 follow-up statement
827
WWUS51 KBOX 230432
SVSBOX
Severe Weather Statement
National Weather Service Taunton MA
1232 AM EDT WED AUG 23 2017
CTC003-013-015-230441-
/O.CAN.KBOX.SV.W.0072.000000T0000Z-170823T0500Z/
Windham CT-Tolland CT-Hartford CT-
1232 AM EDT WED AUG 23 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WINDHAM...
SOUTHERN TOLLAND AND SOUTHERN HARTFORD COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been cancelled.
LAT...LON 4187 7240 4163 7194 4166 7216 4171 7224
4164 7233 4160 7234 4158 7246 4165 7251
4164 7266 4163 7271 4160 7272 4155 7282
4157 7285 4155 7285 4156 7288 4156 7294
4163 7293 4164 7298 4170 7300
TIME...MOT...LOC 0430Z 255DEG 40KT 4166 7267
$$
NoceraThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 11:47 PM EDT | Special Weather Statement | BOX | 43 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 2017Every severe thunderstorm 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.