Alert archive / New Hampshire / Tornado Warnings in 2012
Tornado Warning 1, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at May 29, 2012, 3:30 PM EDT for Cheshire County, New Hampshire. It was in force for 45 min. 6 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
- May 29, 2012, 3:30 PM EDT (19:30 UTC)
- Expired
- May 29, 2012, 4:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
County Cheshire County, NH
The radar
The Albany radar (KENX), 153 km from the middle of the area, began a volume at 19:31 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, 3:30 PM EDT | HAIL 1.75 | Bellows Falls, VT | |
| May 29, 3:30 PM EDT | HAIL 2 | Bellows Falls, VT | |
| May 29, 3:35 PM EDT | HAIL 1 | 3 S Langdon, NH | QUARTER SIZED HAIL OFF MELLISH ROAD |
| May 29, 3:40 PM EDT | HAIL 1.75 | Bellows Falls, VT | |
| May 29, 3:45 PM EDT | HAIL 1.75 | Bellows Falls, VT | |
| May 29, 3:45 PM EDT | HAIL 1 | Alstead, NH | FALLING CONTINUOUSLY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 7.5 hours before the alert went out and 131 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
- 1908 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1026 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
575
WFUS51 KBOX 291930
TORBOX
NHC005-292015-
/O.NEW.KBOX.TO.W.0001.120529T1930Z-120529T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
330 PM EDT TUE MAY 29 2012
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* TORNADO WARNING FOR...
NORTH CENTRAL CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
* UNTIL 415 PM EDT
* AT 325 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR WALPOLE...
OR NEAR BELLOWS FALLS...MOVING NORTHEAST AT 30 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...ALSTEAD.
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS A
TORNADO MAY ALREADY BE ON THE GROUND OR IS EXPECTED TO DEVELOP
SHORTLY. TAKE COVER NOW! MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE
OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4318 7215 4314 7217 4306 7246 4308 7245
4311 7244 4314 7246 4316 7246 4316 7242
4314 7242 4314 7238 4316 7238 4319 7217
TIME...MOT...LOC 1930Z 238DEG 24KT 4311 7245
$$
FRANK3 follow-up statements
891
WWUS51 KBOX 291939
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
339 PM EDT TUE MAY 29 2012
NHC005-292015-
/O.CON.KBOX.TO.W.0001.000000T0000Z-120529T2015Z/
CHESHIRE NH-
339 PM EDT TUE MAY 29 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR NORTH
CENTRAL CHESHIRE COUNTY...
AT 334 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION. THIS TORNADO WAS LOCATED
NEAR WALPOLE...OR NEAR BELLOWS FALLS...MOVING NORTHEAST AT 25 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALSTEAD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING HAIL
UP TO OR LARGER THAN GOLF BALL SIZE AND DESTRUCTIVE STRAIGHT LINE
WINDS.
&&
LAT...LON 4318 7215 4314 7217 4306 7246 4308 7245
4311 7244 4314 7246 4316 7246 4316 7242
4314 7242 4314 7238 4316 7238 4319 7217
TIME...MOT...LOC 1939Z 243DEG 20KT 4312 7240
$$
FRANK570
WWUS51 KBOX 291956
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
356 PM EDT TUE MAY 29 2012
NHC005-292015-
/O.CON.KBOX.TO.W.0001.000000T0000Z-120529T2015Z/
CHESHIRE NH-
356 PM EDT TUE MAY 29 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR NORTH
CENTRAL CHESHIRE COUNTY...
AT 353 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ALSTEAD...OR 8
MILES EAST OF BELLOWS FALLS...MOVING NORTHEAST AT 25 MPH.
THE POSSIBLE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. AT 345
PM...CONTINUOUS 1 INCH DIAMETER HAIL WAS REPORTED AT ALSTEAD BY LAW
ENFORCEMENT.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
TUESDAY EVENING FOR SOUTHERN NEW HAMPSHIRE.
&&
LAT...LON 4318 7215 4314 7217 4310 7235 4310 7236
4311 7236 4311 7238 4312 7239 4314 7238
4316 7238 4319 7217
TIME...MOT...LOC 1955Z 243DEG 20KT 4316 7229
$$
FRANK722
WWUS51 KBOX 292013
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
413 PM EDT TUE MAY 29 2012
NHC005-292022-
/O.EXP.KBOX.TO.W.0001.000000T0000Z-120529T2015Z/
CHESHIRE NH-
413 PM EDT TUE MAY 29 2012
...THE TORNADO WARNING FOR NORTH CENTRAL CHESHIRE COUNTY WILL EXPIRE
AT 415 PM EDT...
THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED SOME AND
WILL EXIT THE COUNTY WARNING AREA SHORTLY. THEREFORE...THE TORNADO
WILL EXPIRE AT 415 PM. A SEVERE THUNDERSTORM WARNING REMAINS IN
EFFECT FOR ANOTHER STORM FURTHER SOUTH IN CHESHIRE COUNTY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
TUESDAY EVENING FOR SOUTHERN NEW HAMPSHIRE.
LAT...LON 4318 7215 4314 7217 4310 7235 4310 7236
4311 7236 4311 7238 4312 7239 4314 7238
4316 7238 4319 7217
TIME...MOT...LOC 2012Z 243DEG 20KT 4320 7217
$$
FRANKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 3:04 PM EDT | Special Weather Statement | BOX | Cheshire | 41 min |
| May 29, 3:16 PM EDT | Special Weather Statement | BOX | Cheshire | 44 min |
| May 29, 3:19 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 41 min |
| May 29, 3:42 PM EDT | Special Weather Statement | BOX | Cheshire | 48 min |
| May 29, 3:51 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 54 min |
| May 29, 4:24 PM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 3 hr |
| May 29, 4:37 PM EDT | Tornado Warning | BOX | Cheshire | 38 min |
| May 29, 4:45 PM EDT | Flash Flood Warning | BOX | Cheshire | 3 hr |
| May 29, 5:09 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 66 min |
| May 29, 6:13 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 62 min |
| May 29, 6:39 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 66 min |
| May 29, 7:09 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 25 min |
| May 29, 7:32 PM EDT | Areal Flood Advisory | BOX | Hillsborough | 3 hr |
| May 29, 7:44 PM EDT | Areal Flood Warning | BOX | Cheshire | 6 hr |
Nearby
Tornado Warnings in New Hampshire, 2012Every tornado warning in 2012Tornadoes 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.