Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 8, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at May 29, 2012, 3:19 PM EDT for Cheshire County, New Hampshire. It was in force for 41 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, 3:19 PM EDT (19:19 UTC)
- Expired
- May 29, 2012, 4:00 PM EDT
- In force
- 41 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 19:22 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, 7.3 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.
254
WUUS51 KBOX 291919
SVRBOX
NHC005-292000-
/O.NEW.KBOX.SV.W.0008.120529T1919Z-120529T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
319 PM EDT TUE MAY 29 2012
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
* UNTIL 400 PM EDT
* AT 316 PM EDT...NATIONAL WEATHER SERVICE 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
WALPOLE...OR NEAR BELLOWS FALLS...AND WAS MOVING EAST AT 25 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...ALSTEAD...SURRY AND MARLOW.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT LIGHTNING WAS
OCCURRING WITH THIS STORM. GET INDOORS OR INSIDE A VEHICLE NOW! DO
NOT SEEK SHELTER UNDER TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 4314 7217 4313 7204 4311 7204 4301 7246
4302 7247 4306 7247 4308 7245 4311 7244
4314 7246 4316 7246 4316 7242 4314 7242
4314 7238 4316 7238 4319 7216
TIME...MOT...LOC 1919Z 257DEG 21KT 4311 7241
$$
FRANK1 follow-up statement
447
WWUS51 KBOX 291928
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
328 PM EDT TUE MAY 29 2012
NHC005-292000-
/O.CON.KBOX.SV.W.0008.000000T0000Z-120529T2000Z/
CHESHIRE NH-
328 PM EDT TUE MAY 29 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTH CENTRAL CHESHIRE COUNTY...
AT 325 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR ALSTEAD...OR NEAR BELLOWS FALLS...MOVING EAST AT 25 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARLOW
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4314 7217 4313 7204 4311 7204 4305 7242
4307 7243 4308 7244 4308 7245 4311 7244
4314 7246 4316 7246 4316 7242 4314 7242
4314 7238 4316 7238 4319 7216
TIME...MOT...LOC 1928Z 257DEG 21KT 4312 7234
$$
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, 3:30 PM EDT | Tornado Warning | BOX | Cheshire | 45 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
Severe Thunderstorm Warnings in New Hampshire, 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.