Alert archive / Connecticut / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 51, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 18, 2012, 2:29 PM EDT for Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It was in force for 61 min. 2 reports 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
- Jul 18, 2012, 2:29 PM EDT (18:29 UTC)
- Expired
- Jul 18, 2012, 3:30 PM EDT
- In force
- 61 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT
The radar
The Brookhaven radar (KOKX), 91 km from the middle of the area, began a volume at 18:32 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 2:53 PM EDT | TSTM WND DMG | Burlington, CT | LARGE TREE DOWN ACROSS WEST CHIPPENS HILL ROAD |
| Jul 18, 3:12 PM EDT | HAIL 0.75 | Ashford, CT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 12:20 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.5 hours before the alert went out and 91 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
- 2129 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1491 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
228
WUUS51 KBOX 181829
SVRBOX
CTC003-013-015-181930-
/O.NEW.KBOX.SV.W.0051.120718T1829Z-120718T1930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
229 PM EDT WED JUL 18 2012
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
HARTFORD COUNTY IN NORTHERN CONNECTICUT...
SOUTHWESTERN TOLLAND COUNTY IN NORTHERN CONNECTICUT...
SOUTHWESTERN WINDHAM COUNTY IN NORTHERN CONNECTICUT...
* UNTIL 330 PM EDT
* AT 225 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ROCKY HILL...OR 6
MILES EAST OF NEWINGTON...AND MOVING EAST AT 25 MPH.
* THIS SEVERE THUNDERSTORM WILL BE NEAR...
EAST HARTFORD...WETHERSFIELD...GLASTONBURY AND ROCKY HILL AROUND
235 PM EDT.
MARLBOROUGH AND BOLTON AROUND 250 PM EDT.
HEBRON AND ANDOVER AROUND 300 PM EDT.
COLUMBIA AROUND 310 PM EDT.
WILLIMANTIC AROUND 320 PM EDT.
WINDHAM AROUND 325 PM EDT.
SCOTLAND AROUND 330 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
ROCKVILLE AND STORRS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 4180 7296 4185 7294 4189 7207 4165 7201
4166 7216 4171 7224 4164 7233 4161 7233
4159 7239 4158 7246 4165 7253 4163 7271
4158 7275 4155 7282 4157 7285 4155 7285
4156 7295 4163 7293 4164 7299 4180 7302
TIME...MOT...LOC 1825Z 272DEG 21KT 4166 7261
$$
FRANK1 follow-up statement
885
WWUS51 KBOX 181909
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
309 PM EDT WED JUL 18 2012
CTC003-013-015-181930-
/O.CON.KBOX.SV.W.0051.000000T0000Z-120718T1930Z/
HARTFORD CT-WINDHAM CT-TOLLAND CT-
309 PM EDT WED JUL 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM
EDT FOR SOUTHEASTERN HARTFORD...SOUTHWESTERN WINDHAM AND
SOUTHWESTERN TOLLAND COUNTIES...
AT 308 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LEBANON...OR 5 MILES
SOUTHWEST OF WILLIMANTIC...MOVING EAST AT 25 MPH.
THIS SEVERE STORM WILL BE NEAR...
WILLIMANTIC...COLUMBIA AND HEBRON AROUND 235 PM EDT.
WINDHAM AROUND 245 PM EDT.
SCOTLAND AROUND 255 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
ROCKVILLE AND STORRS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MILES
PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY
RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 4163 7293 4172 7276 4185 7277 4189 7206
4165 7201 4166 7216 4171 7224 4164 7233
4161 7233 4159 7239 4160 7241 4158 7245
4164 7250 4165 7253 4163 7271 4158 7275
4156 7281 4157 7285 4155 7285 4156 7294
TIME...MOT...LOC 1908Z 272DEG 21KT 4165 7228
$$
FRANKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 12:41 PM EDT | Heat Advisory | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 6 hr |
| Jul 18, 2:04 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 56 min |
| Jul 18, 2:21 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 54 min |
| Jul 18, 2:24 PM EDT | Flash Flood Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 3 hr |
| Jul 18, 2:44 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 61 min |
| Jul 18, 3:46 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 59 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 2012Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.