Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 8, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at May 26, 2021, 5:14 PM EDT for 4 counties in New Hampshire. It was in force for 46 min. 5 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 26, 2021, 5:14 PM EDT (21:14 UTC)
- Expired
- May 26, 2021, 6:00 PM EDT
- In force
- 46 min
- Issued by
- NWS Gray, ME
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cheshire County, NH, Hillsborough County, NH, Merrimack County, NH, Sullivan County, NH
The radar
The Albany radar (KENX), 143 km from the middle of the area, began a volume at 21:15 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 26, 5:40 PM EDT | TSTM WND DMG | Spofford, NH | DELAYED REPORT. MAPLE TREE SNAPPED 40 FEET ABOVE GROUND. |
| May 26, 5:42 PM EDT | TSTM WND DMG | 2 S Goshen, NH | TREES AND WIRES DOWN ON BALL PARK RD. |
| May 26, 5:48 PM EDT | TSTM WND DMG | 1 Sse Swanzey, NH | TREES, LARGE BRANCHES AND OTHER DEBRIS SCATTERED ACROSS HWY 32 NEAR SOUTH RD. |
| May 26, 5:53 PM EDT | TSTM WND DMG | 1 Nw Stoddard, NH | SEVERAL TREES DOWN. |
| May 26, 6:06 PM EDT | TSTM WND DMG | Warner, NH | SEVERAL TREES AND WIRES DOWN. |
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 26, 3:56 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 9.2 hours before the alert went out and 121 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
- 6 J/kg
- Mixed-layer CIN
- -291 J/kg
- Mixed-layer LCL
- 1196 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
804
WUUS51 KGYX 262114
SVRGYX
NHC005-011-013-019-262200-
/O.NEW.KGYX.SV.W.0008.210526T2114Z-210526T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gray ME
514 PM EDT Wed May 26 2021
The National Weather Service in Gray Maine has issued a
* Severe Thunderstorm Warning for...
Southern Sullivan County in central New Hampshire...
Cheshire County in southern New Hampshire...
Northwestern Hillsborough County in southern New Hampshire...
Southwestern Merrimack County in central New Hampshire...
* Until 600 PM EDT.
* At 514 PM EDT, severe thunderstorms were located along a line
extending from 11 miles west of Charlestown to 12 miles west of
Chesterfield to 20 miles southwest of Hinsdale, moving east at 45
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Keene, Jaffrey, Henniker, Peterborough, Rindge, Charlestown,
Winchester, Antrim, Greenfield, Bradford, Dublin, Bennington,
Richmond, Harrisville, Nelson, Walpole, Alstead, Westmoreland,
Swanzey and Marlow.
This includes Interstate 89 between mile markers 17 and 25.
This also includes...
Mount Monadnock and Mount Sunapee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4292 7252 4295 7253 4297 7248 4300 7244
4305 7247 4308 7244 4312 7243 4315 7246
4323 7243 4325 7244 4328 7241 4336 7174
4292 7193 4271 7207 4273 7246 4277 7249
4277 7252 4278 7251 4281 7254 4287 7256
TIME...MOT...LOC 2114Z 268DEG 38KT 4318 7264 4293 7269 4267 7287
HAIL...<.75IN
WIND...60MPH
$$
Ekster1 follow-up statement
259
WWUS51 KGYX 262200
SVSGYX
Severe Weather Statement
National Weather Service Gray ME
600 PM EDT Wed May 26 2021
NHC005-011-013-019-262210-
/O.EXP.KGYX.SV.W.0008.000000T0000Z-210526T2200Z/
Sullivan NH-Cheshire NH-Hillsborough NH-Merrimack NH-
600 PM EDT Wed May 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SULLIVAN...
CHESHIRE...NORTHWESTERN HILLSBOROUGH AND SOUTHWESTERN MERRIMACK
COUNTIES HAS EXPIRED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southern and central New Hampshire.
LAT...LON 4292 7252 4295 7253 4297 7248 4300 7244
4305 7247 4308 7244 4312 7243 4315 7246
4323 7243 4325 7244 4328 7241 4336 7174
4292 7193 4271 7207 4273 7246 4277 7249
4277 7252 4278 7251 4281 7254 4287 7256
TIME...MOT...LOC 2200Z 268DEG 38KT 4319 7206 4294 7212 4268 7230
$$The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 4:46 PM EDT | Special Weather Statement | GYX | Grafton | 29 min |
| May 26, 4:51 PM EDT | Severe Thunderstorm Warning | GYX | Coos, Grafton | 54 min |
| May 26, 5:07 PM EDT | Severe Thunderstorm Warning | GYX | Grafton, Merrimack, Sullivan | 53 min |
| May 26, 5:52 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Grafton, Merrimack, Strafford | 53 min |
| May 26, 5:58 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Cheshire, Hillsborough, Merrimack, Rockingham, Strafford and 1 more | 62 min |
| May 26, 6:30 PM EDT | Severe Thunderstorm Warning | GYX | Carroll, Strafford | 60 min |
| May 26, 6:59 PM EDT | Severe Thunderstorm Warning | GYX | Belknap, Carroll, Hillsborough, Merrimack, Rockingham, Strafford | 61 min |
Nearby
Severe Thunderstorm Warnings in New Hampshire, 2021Every severe thunderstorm warning in 2021
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.