Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 22, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jun 23, 2012, 4:16 PM EDT for Cheshire County, Hillsborough County, New Hampshire. It was in force for 17 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
- Jun 23, 2012, 4:16 PM EDT (20:16 UTC)
- Expired
- Jun 23, 2012, 4:33 PM EDT
- In force
- 17 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Cheshire County, NH, Hillsborough County, NH
The radar
The Boston radar (KBOX), 134 km from the middle of the area, began a volume at 20:18 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
Gray, ME (KGYX), launched 12:00Z, 8.3 hours before the alert went out and 153 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1265 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
056
WUUS51 KBOX 232016
SVRBOX
NHC005-011-232100-
/O.NEW.KBOX.SV.W.0022.120623T2016Z-120623T2100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
416 PM EDT SAT JUN 23 2012
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EAST CENTRAL CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
NORTHERN HILLSBOROUGH COUNTY IN SOUTHERN NEW HAMPSHIRE...
* UNTIL 500 PM EDT
* AT 414 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM HILLSBOROUGH TO BENNINGTON TO DUBLIN...OR ALONG A LINE
EXTENDING FROM HENNIKER TO 13 MILES NORTHEAST OF JAFFREY TO 7 MILES
NORTHWEST OF JAFFREY...AND WAS MOVING EAST AT 30 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...DEERING...PETERBOROUGH...
WEARE...FRANCESTOWN...GREENFIELD...WILTON...LYNDEBOROUGH...
GOFFSTOWN...NEW BOSTON AND MONT VERNON.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL...AS WELL
AS DEADLY LIGHTNING AND TORRENTIAL RAIN. GET TO SAFE SHELTER NOW...
INSIDE A STURDY BUILDING OR IN A VEHICLE. DO NOT SEEK SHELTER UNDER
TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING. DRIVERS SHOULD BE ALERT FOR PONDING OF WATER AND AVOID
FLOODED ROADS.
&&
LAT...LON 4312 7185 4315 7167 4314 7166 4306 7164
4307 7152 4305 7150 4305 7148 4283 7172
4284 7224 4297 7205 4319 7202 4321 7191
TIME...MOT...LOC 2017Z 258DEG 24KT 4317 7186 4299 7189
4290 7207
$$
SIPPRELL1 follow-up statement
624
WWUS51 KBOX 232033
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
433 PM EDT SAT JUN 23 2012
NHC005-011-232043-
/O.CAN.KBOX.SV.W.0022.000000T0000Z-120623T2100Z/
CHESHIRE NH-HILLSBOROUGH NH-
433 PM EDT SAT JUN 23 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HILLSBOROUGH AND EAST
CENTRAL CHESHIRE COUNTIES IS CANCELLED...
THE STORM HAS WEAKENED ACROSS THE PREVIOUSLY WARNED AREA.
LAT...LON 4312 7185 4315 7167 4314 7166 4306 7164
4307 7152 4305 7150 4305 7148 4283 7172
4284 7224 4297 7205 4319 7202 4321 7191
TIME...MOT...LOC 2033Z 258DEG 24KT 4319 7172 4301 7175
4292 7193
$$
SIPPRELLThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 3:18 PM EDT | Special Weather Statement | BOX | Cheshire | 42 min |
| Jun 23, 3:25 PM EDT | Special Weather Statement | BOX | Rockingham | 50 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.