Alert archive / Connecticut / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 13, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at May 29, 2013, 8:53 PM EDT for Capitol Planning Region, Connecticut. It was in force for 67 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
- May 29, 2013, 8:53 PM EDT (00:53 UTC)
- Expired
- May 29, 2013, 10:00 PM EDT
- In force
- 67 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
County Capitol Planning Region, CT
The radar
The Brookhaven radar (KOKX), 110 km from the middle of the area, began a volume at 00:54 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 |
|---|---|---|---|
| May 29, 9:20 PM EDT | TSTM WND DMG | Suffield, CT | TREE DOWN ON HILL STREET AND OTHER LOCATIONS. |
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 |
|---|---|---|---|
| May 29, 6:56 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.9 hours before the alert went out and 110 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
- 179 J/kg
- Mixed-layer CIN
- -211 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
377
WUUS51 KBOX 300053
SVRBOX
CTC003-013-300200-
/O.NEW.KBOX.SV.W.0013.130530T0053Z-130530T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
853 PM EDT WED MAY 29 2013
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
HARTFORD COUNTY IN NORTHERN CONNECTICUT...
TOLLAND COUNTY IN NORTHERN CONNECTICUT...
* UNTIL 1000 PM EDT
* AT 852 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 NORFOLK...OR 11 MILES
NORTHWEST OF TORRINGTON...AND MOVING EAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
HARTFORD...NEW BRITAIN...WEST HARTFORD...BRISTOL...EAST HARTFORD...
MANCHESTER...NEWINGTON...WINDSOR LOCKS...MANSFIELD...VERNON...
FARMINGTON...PLAINVILLE...SOUTH WINDSOR...WETHERSFIELD...
WILLINGTON...BERLIN...ENFIELD...ROCKY HILL...GLASTONBURY AND
SOUTHINGTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. GO INSIDE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. IF
DRIVING BE PREPARED FOR LOW VISIBILITY AND DO NOT DRIVE THROUGH
FLOODED ROADS.
MINOR FLOODING CAN BE EXPECTED FROM TORRENTIAL RAINFALL. DO NOT DRIVE
THROUGH FLOODED ROADS.
&&
LAT...LON 4204 7301 4204 7301 4204 7282 4200 7281
4204 7275 4203 7210 4196 7210 4196 7222
4175 7216 4172 7225 4160 7233 4158 7246
4165 7251 4164 7266 4155 7285 4156 7295
4180 7302 4181 7295 4197 7289 4197 7303
TIME...MOT...LOC 0052Z 291DEG 31KT 4199 7322
$$
FRANK4 follow-up statements
055
WWUS51 KBOX 300124
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
924 PM EDT WED MAY 29 2013
CTC003-013-300200-
/O.CON.KBOX.SV.W.0013.000000T0000Z-130530T0200Z/
HARTFORD CT-TOLLAND CT-
924 PM EDT WED MAY 29 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR HARTFORD AND TOLLAND COUNTIES...
AT 921 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE ENTERING NORTHERN HARTFORD AND NORTHERN
WINDHAM COUNTIES. THESE STORMS WILL PUSH SOUTH THROUGH THE REST OF
HARTFORD AND TOLLAND COUNTIES.
IN ADDITION...DANGEROUS CLOUD TO GROUND LIGHTNING AND HEAVY RAIN
WILL RESULT IN POOR DRAINAGE STREET FLOODING.
LOCATIONS IMPACTED INCLUDE...
HARTFORD...NEW BRITAIN...WEST HARTFORD...BRISTOL...EAST HARTFORD...
MANCHESTER...NEWINGTON...WINDSOR LOCKS...MANSFIELD...VERNON...
FARMINGTON...PLAINVILLE...SOUTH WINDSOR...WETHERSFIELD...
WILLINGTON...BERLIN...ENFIELD...ROCKY HILL...GLASTONBURY AND
SOUTHINGTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL. GO
INSIDE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. DRIVERS SHOULD EXPECT POOR VISIBILITY AND AVOID FLOODED
ROADS.
&&
LAT...LON 4204 7301 4204 7282 4200 7281 4204 7275
4203 7210 4196 7210 4196 7222 4175 7216
4172 7225 4160 7233 4158 7246 4165 7251
4164 7266 4155 7285 4156 7295 4180 7302
4181 7295 4197 7289 4197 7303
TIME...MOT...LOC 0121Z 291DEG 31KT 4190 7290
$$
FRANK324
WWUS51 KBOX 300143
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
943 PM EDT WED MAY 29 2013
CTC003-013-300200-
/O.CON.KBOX.SV.W.0013.000000T0000Z-130530T0200Z/
HARTFORD CT-TOLLAND CT-
943 PM EDT WED MAY 29 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR HARTFORD AND TOLLAND COUNTIES...
AT 939 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THIS LINE OF STORMS WAS MOVING THROUGH HARTFORD AND
TOLLAND COUNTIES...MOVING SOUTHEAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
HARTFORD...NEW BRITAIN...WEST HARTFORD...BRISTOL...EAST HARTFORD...
MANCHESTER...NEWINGTON...WINDSOR LOCKS...MANSFIELD...VERNON...
FARMINGTON...PLAINVILLE...SOUTH WINDSOR...WETHERSFIELD...
WILLINGTON...BERLIN...ENFIELD...ROCKY HILL...GLASTONBURY AND
SOUTHINGTON.
IN ADDITION...DANGEROUS CLOUD TO GROUND LIGHTNING AND HEAVY RAIN
WILL RESULT IN POOR DRAINAGE STREET FLOODING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL. GO
INSIDE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. DRIVERS SHOULD EXPECT POOR VISIBILITY AND AVOID FLOODED
ROADS.
&&
LAT...LON 4180 7296 4191 7279 4193 7268 4196 7268
4203 7210 4196 7210 4196 7222 4184 7222
4183 7218 4175 7216 4172 7225 4160 7233
4158 7246 4165 7251 4164 7266 4155 7285
4156 7294 4163 7293 4164 7297 4180 7301
TIME...MOT...LOC 0139Z 291DEG 31KT 4184 7270
$$
FRANK942
WWUS51 KBOX 300150
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
950 PM EDT WED MAY 29 2013
CTC003-013-300200-
/O.CON.KBOX.SV.W.0013.000000T0000Z-130530T0200Z/
HARTFORD CT-TOLLAND CT-
950 PM EDT WED MAY 29 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR CENTRAL HARTFORD AND TOLLAND COUNTIES...
AT 947 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THIS LINE OF STORMS WAS MOVING THROUGH HARTFORD AND TOLLAND
COUNTIES...MOVING SOUTHEAST AT 35 MPH.
IN ADDITION...DANGEROUS CLOUD TO GROUND LIGHTNING AND HEAVY RAIN
WILL RESULT IN POOR DRAINAGE STREET FLOODING.
LOCATIONS IMPACTED INCLUDE...
HARTFORD...NEW BRITAIN...WEST HARTFORD...BRISTOL...EAST HARTFORD...
MANCHESTER...NEWINGTON...MANSFIELD...VERNON...FARMINGTON...
PLAINVILLE...SOUTH WINDSOR...WETHERSFIELD...WILLINGTON...BERLIN...
ROCKY HILL...GLASTONBURY...SOUTHINGTON...EAST WINDSOR AND HEBRON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL. GO
INSIDE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. DRIVERS SHOULD EXPECT POOR VISIBILITY AND AVOID FLOODED
ROADS.
&&
LAT...LON 4180 7301 4185 7278 4186 7260 4184 7249
4197 7228 4196 7210 4196 7222 4184 7222
4183 7218 4175 7216 4172 7225 4164 7233
4160 7233 4158 7246 4165 7251 4164 7266
4155 7285 4156 7294 4163 7293 4164 7297
TIME...MOT...LOC 0147Z 291DEG 31KT 4181 7260
$$
FRANK375
WWUS51 KBOX 300201
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1001 PM EDT WED MAY 29 2013
CTC003-013-300209-
/O.EXP.KBOX.SV.W.0013.000000T0000Z-130530T0200Z/
HARTFORD CT-TOLLAND CT-
1001 PM EDT WED MAY 29 2013
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HARTFORD AND TOLLAND
COUNTIES WILL EXPIRE AT 1000 PM EDT...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED AND
WAS PUSHING SOUTH OF THE REGION. THEREFORE...THE SEVERE
THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER...AREAS OF
HEAVY RAIN AND DANGEROUS CLOUD TO GROUND LIGHTNING WILL CONTINUE FOR
ANOTHER HALF HOUR. THIS MAY RESULT IN ADDITIONAL POOR DRAINAGE
STREET FLOODING.
LAT...LON 4180 7301 4185 7278 4186 7260 4184 7249
4197 7228 4196 7210 4196 7222 4184 7222
4183 7218 4175 7216 4172 7225 4164 7233
4160 7233 4158 7246 4165 7251 4164 7266
4155 7285 4156 7294 4163 7293 4164 7297
TIME...MOT...LOC 0159Z 291DEG 31KT 4181 7260
$$
FRANKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 8:45 PM EDT | Areal Flood Advisory | BOX | Capitol Planning Region | 60 min |
| May 29, 9:19 PM EDT | Special Weather Statement | BOX | 56 min | |
| May 29, 9:29 PM EDT | Areal Flood Advisory | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 61 min |
| May 29, 11:00 PM EDT | Areal Flood Advisory | BOX | Capitol Planning Region | 2 hr |
| May 30, 7:41 PM EDT | Special Weather Statement | BOX | 34 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 2013Every severe thunderstorm 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.