Alert archive / Vermont / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 145, NWS Albany, NY
NWS Albany, NY issued this severe thunderstorm warning at Aug 12, 2021, 4:01 PM EDT for Bennington County, Windham County, Vermont. It was in force for 59 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
- Aug 12, 2021, 4:01 PM EDT (20:01 UTC)
- Expired
- Aug 12, 2021, 5:00 PM EDT
- In force
- 59 min
- Issued by
- NWS Albany, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bennington County, VT, Windham County, VT
The radar
The Albany radar (KENX), 122 km from the middle of the area, began a volume at 20:03 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 12, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 8.0 hours before the alert went out and 101 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
- 58 J/kg
- Mixed-layer CIN
- -212 J/kg
- Mixed-layer LCL
- 1178 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
619
WUUS51 KALY 122001
SVRALY
VTC003-025-122100-
/O.NEW.KALY.SV.W.0145.210812T2001Z-210812T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
401 PM EDT Thu Aug 12 2021
The National Weather Service in Albany has issued a
* Severe Thunderstorm Warning for...
Southeastern Bennington County in southern Vermont...
Southern Windham County in southern Vermont...
* Until 500 PM EDT.
* At 400 PM EDT, a severe thunderstorm was located over Wilmington,
or 12 miles south of Stratton, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Brattleboro, Putney, Vernon, Wilmington, Stamford, Readsboro,
Newfane, Guilford Center, Guilford, Whitingham, Dover, Marlboro,
Halifax, Woodford, Jacksonville, Searsburg, Glastenbury, Somerset,
Goose City and East Putney.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
Please report hail size...damaging winds and reports of trees down to
the National Weather Service by email at Alb.Stormreport@noaa.gov...
On Facebook at www.facebook.com/nwsalbany or twitter @nwsalbany
LAT...LON 4274 7317 4302 7312 4300 7246 4298 7246
4297 7247 4296 7252 4295 7253 4292 7252
4290 7253 4288 7255 4285 7256 4281 7254
4278 7251 4277 7252 4276 7251 4277 7249
4273 7246
TIME...MOT...LOC 2000Z 270DEG 27KT 4287 7292
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NAS1 follow-up statement
146
WWUS51 KALY 122022
SVSALY
Severe Weather Statement
National Weather Service Albany NY
422 PM EDT Thu Aug 12 2021
VTC003-122032-
/O.CAN.KALY.SV.W.0145.000000T0000Z-210812T2100Z/
Bennington VT-
422 PM EDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BENNINGTON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southern Vermont.
LAT...LON 4275 7291 4301 7291 4300 7246 4298 7246
4297 7247 4296 7252 4295 7253 4292 7252
4290 7253 4288 7255 4285 7256 4281 7254
4278 7251 4277 7252 4276 7251 4277 7249
4273 7246
TIME...MOT...LOC 2022Z 270DEG 27KT 4287 7269
$$
VTC025-122100-
/O.CON.KALY.SV.W.0145.000000T0000Z-210812T2100Z/
Windham VT-
422 PM EDT Thu Aug 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SOUTHERN WINDHAM COUNTY...
At 422 PM EDT, a severe thunderstorm was located near Brattleboro,
moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Brattleboro, Putney, Vernon, Wilmington, Newfane, Guilford Center,
Guilford, Whitingham, Dover, Marlboro, Halifax, Jacksonville, North
Vernon, South Newfane, Goose City, East Dummerston, East Putney,
Fairview Village, Williamsville and East Dover.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4275 7291 4301 7291 4300 7246 4298 7246
4297 7247 4296 7252 4295 7253 4292 7252
4290 7253 4288 7255 4285 7256 4281 7254
4278 7251 4277 7252 4276 7251 4277 7249
4273 7246
TIME...MOT...LOC 2022Z 270DEG 27KT 4287 7269
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NASThe office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 3:29 PM EDT | Severe Thunderstorm Warning | ALY | Bennington | 61 min |
| Aug 12, 4:00 PM EDT | Heat Advisory | ALY | Bennington, Windham | 28 hr |
Nearby
Severe Thunderstorm Warnings in Vermont, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.