Alert archive / Vermont / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 43, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at Sep 15, 2021, 2:07 PM EDT for Rutland County, Windsor County, Vermont. It was in force for 53 min. 2 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
- Sep 15, 2021, 2:07 PM EDT (18:07 UTC)
- Expired
- Sep 15, 2021, 3:00 PM EDT
- In force
- 53 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Rutland County, VT, Windsor County, VT
The radar
The Burlington radar (KCXX), 114 km from the middle of the area, began a volume at 18:09 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 |
|---|---|---|---|
| Sep 15, 2:09 PM EDT | TSTM WND DMG | Bridgewater, VT | TREES AND POWERLINES DOWN IN BRIDGEWATER. |
| Sep 15, 2:20 PM EDT | TSTM WND DMG | Woodstock, VT | TREES AND POWERLINES DOWN IN WOODSTOCK. |
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 |
|---|---|---|---|
| Sep 15, 11:55 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 6.1 hours before the alert went out and 155 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
- 856 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 766 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.3
The text
As transmitted.
987
WUUS51 KBTV 151807
SVRBTV
VTC021-027-151900-
/O.NEW.KBTV.SV.W.0043.210915T1807Z-210915T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
207 PM EDT Wed Sep 15 2021
The National Weather Service in Burlington has issued a
* Severe Thunderstorm Warning for...
Eastern Rutland County in southern Vermont...
Central Windsor County in southern Vermont...
* Until 300 PM EDT.
* At 207 PM EDT, a severe thunderstorm was located over Bridgewater
Corners, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
* Locations impacted include...
White River Junction, Woodstock, Hartland Four Corners, Woodstock
Village, Quechee, Plymouth, Hartland, Bridgewater, Hartford,
Pomfret, Norwich, Reading, Killington, West Windsor, Plymouth
Union, Queechee State Park, South Sherburne, North Hartland Dam
Recreation Area, West Woodstock and South Woodstock.
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 4361 7279 4376 7221 4375 7222 4374 7225
4370 7231 4367 7231 4362 7233 4360 7234
4358 7238 4354 7238 4353 7239 4352 7275
TIME...MOT...LOC 1807Z 253DEG 22KT 4359 7267
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hammond2 follow-up statements
743
WWUS51 KBTV 151825
SVSBTV
Severe Weather Statement
National Weather Service Burlington VT
225 PM EDT Wed Sep 15 2021
VTC021-151834-
/O.CAN.KBTV.SV.W.0043.000000T0000Z-210915T1900Z/
Rutland VT-
225 PM EDT Wed Sep 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN RUTLAND COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southern Vermont.
LAT...LON 4376 7221 4375 7222 4374 7225 4370 7231
4367 7231 4362 7233 4360 7234 4358 7238
4354 7238 4353 7239 4356 7259 4367 7257
TIME...MOT...LOC 1824Z 254DEG 28KT 4364 7244
$$
VTC027-151900-
/O.CON.KBTV.SV.W.0043.000000T0000Z-210915T1900Z/
Windsor VT-
225 PM EDT Wed Sep 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR EAST CENTRAL WINDSOR COUNTY...
At 224 PM EDT, a severe thunderstorm was located over Quechee, moving
east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
Locations impacted include...
White River Junction, Woodstock, Hartland Four Corners, Woodstock
Village, Hartland, Hartford, Quechee, Pomfret, Norwich, Queechee
State Park, Taftsville, North Hartland Dam Recreation Area, West
Woodstock, South Pomfret, South Woodstock, Pompanoosuc and North
Hartland.
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 4376 7221 4375 7222 4374 7225 4370 7231
4367 7231 4362 7233 4360 7234 4358 7238
4354 7238 4353 7239 4356 7259 4367 7257
TIME...MOT...LOC 1824Z 254DEG 28KT 4364 7244
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hammond908
WWUS51 KBTV 151852
SVSBTV
Severe Weather Statement
National Weather Service Burlington VT
252 PM EDT Wed Sep 15 2021
VTC027-151902-
/O.EXP.KBTV.SV.W.0043.000000T0000Z-210915T1900Z/
Windsor VT-
252 PM EDT Wed Sep 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WINDSOR COUNTY
WILL EXPIRE AT 300 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southern Vermont.
LAT...LON 4376 7221 4375 7222 4374 7225 4370 7231
4367 7231 4362 7233 4360 7234 4358 7238
4354 7238 4353 7239 4356 7259 4367 7257
TIME...MOT...LOC 1852Z 253DEG 22KT 4369 7223
$$
HammondThe office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 4:22 AM EDT | Special Weather Statement | BTV | Grand Isle | 23 min |
| Sep 15, 4:50 AM EDT | Special Weather Statement | BTV | Grand Isle | 40 min |
| Sep 15, 5:33 AM EDT | Special Weather Statement | BTV | Chittenden, Franklin, Lamoille | 42 min |
| Sep 15, 7:20 AM EDT | Special Weather Statement | BTV | Orleans | 25 min |
| Sep 15, 7:54 AM EDT | Special Weather Statement | BTV | Essex | 36 min |
| Sep 15, 1:08 PM EDT | Special Weather Statement | BTV | Rutland | 52 min |
| Sep 15, 1:15 PM EDT | Severe Thunderstorm Warning | BTV | Rutland, Windsor | 60 min |
| Sep 15, 1:54 PM EDT | Special Weather Statement | BTV | Washington | 66 min |
| Sep 15, 2:03 PM EDT | Special Weather Statement | BTV | Orange | 27 min |
| Sep 15, 2:23 PM EDT | Special Weather Statement | BTV | Lamoille | 37 min |
| Sep 15, 2:32 PM EDT | Severe Thunderstorm Warning | BTV | Orange | 34 min |
| Sep 15, 3:02 PM EDT | Severe Thunderstorm Warning | BTV | Windsor | 28 min |
| Sep 15, 3:16 PM EDT | Special Weather Statement | BTV | Essex | 29 min |
| Sep 15, 3:30 PM EDT | Special Weather Statement | BTV | Windsor | 30 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.