Alert archive / New Hampshire / Tornado Warnings in 2011
Tornado Warning 1, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Jun 1, 2011, 2:52 PM EDT for Cheshire County, New Hampshire. It was in force for 23 min. 8 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
- Jun 1, 2011, 2:52 PM EDT (18:52 UTC)
- Expired
- Jun 1, 2011, 3:15 PM EDT
- In force
- 23 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
County Cheshire County, NH
The radar
The Boston radar (KBOX), 146 km from the middle of the area, began a volume at 18:54 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 |
|---|---|---|---|
| Jun 1, 3:07 PM EDT | HAIL 0.75 | Swanzey, NH | HAM RADIO |
| Jun 1, 3:12 PM EDT | HAIL 0.75 | Keene, NH | HAM RADIO |
| Jun 1, 3:14 PM EDT | HAIL 1 | Keene, NH | HAM RADIO |
| Jun 1, 3:16 PM EDT | HAIL 1.5 | Keene, NH | |
| Jun 1, 3:16 PM EDT | HAIL 1.75 | Keene, NH | |
| Jun 1, 3:17 PM EDT | HAIL 0.75 | Keene, NH | REPORTED FROM PARK AVENUE |
| Jun 1, 3:20 PM EDT | HAIL 1 | Keene, NH | |
| Jun 1, 3:21 PM EDT | HAIL 1.5 | Keene, NH | HAM RADIO |
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 |
|---|---|---|---|
| Jun 1, 12:58 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 6.9 hours before the alert went out and 127 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
- 2410 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 836 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 189 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
200
WFUS51 KBOX 011852
TORBOX
NHC005-011915-
/O.NEW.KBOX.TO.W.0001.110601T1852Z-110601T1915Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
252 PM EDT WED JUN 1 2011
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
THIS INCLUDES THE CITY OF KEENE...
* UNTIL 315 PM EDT
* AT 250 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
CHESTERFIELD...OR NEAR BRATTLEBORO...MOVING EAST AT 30 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...WESTMORELAND...SWANZEY...
TROY...SULLIVAN...ROXBURY...NELSON...MARLBOROUGH...HARRISVILLE AND
DUBLIN.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE
AND CENTRAL RHODE ISLAND.
&&
LAT...LON 4303 7206 4295 7206 4294 7204 4292 7204
4280 7205 4284 7256 4288 7256 4292 7253
4295 7254 4298 7247 4299 7247 4301 7245
4302 7246
TIME...MOT...LOC 1852Z 272DEG 27KT 4293 7250
$$
BELK1 follow-up statement
991
WWUS51 KBOX 011913
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
313 PM EDT WED JUN 1 2011
NHC005-011920-
/O.EXP.KBOX.TO.W.0001.000000T0000Z-110601T1915Z/
CHESHIRE NH-
313 PM EDT WED JUN 1 2011
...THE TORNADO WARNING FOR CENTRAL CHESHIRE COUNTY WILL EXPIRE AT 315
PM EDT...
THIS IS STILL A STRONG THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND STRAIGHT-LINE WINDS IN EXCESS OF 60 MPH. RESIDENTS
ARE URGED TO TAKE COVER FROM THIS STORM...EVEN THOUGH THE TORNADO
WARNING WILL EXPIRE SOON. A SEVERE THUNDERSTORM WARNING REMAINS IN
EFFECT THROUGH 330 PM EDT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING
FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE
AND CENTRAL RHODE ISLAND.
LAT...LON 4303 7206 4295 7206 4294 7204 4292 7204
4280 7205 4284 7256 4288 7256 4292 7253
4295 7254 4298 7247 4299 7247 4301 7245
4302 7246
TIME...MOT...LOC 1910Z 272DEG 27KT 4293 7232
$$
BELKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 8:32 AM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 43 min |
| Jun 1, 2:29 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 61 min |
| Jun 1, 3:24 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 51 min |
| Jun 1, 3:32 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire | 40 min |
| Jun 1, 3:55 PM EDT | Special Weather Statement | BOX | Cheshire | 35 min |
| Jun 1, 5:31 PM EDT | Special Weather Statement | BOX | Cheshire | 59 min |
| Jun 1, 5:54 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 52 min |
| Jun 1, 6:44 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 30 min |
| Jun 1, 7:12 PM EDT | Tornado Warning | BOX | Cheshire, Hillsborough | 48 min |
| Jun 1, 7:15 PM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 104 min |
Nearby
Tornado Warnings in New Hampshire, 2011Every tornado warning in 2011Tornadoes in 2011
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.