Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 41, NWS Burlington, VT

September 8, 2021Rutland County, Windsor County, Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Sep 8, 2021, 7:51 PM EDT for Rutland County, Windsor County, Vermont. It was in force for 39 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
Sep 8, 2021, 7:51 PM EDT (23:51 UTC)
Expired
Sep 8, 2021, 8:30 PM EDT
In force
39 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Rutland County, VT, Windsor County, VT

The radar

The Albany radar (KENX), 124 km from the middle of the area, began a volume at 23:52 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

Albany, NY (KALY), launched 12:00Z, 11.9 hours before the alert went out and 103 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1380 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

561 
WUUS51 KBTV 082351
SVRBTV
VTC021-027-090030-
/O.NEW.KBTV.SV.W.0041.210908T2351Z-210909T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
751 PM EDT Wed Sep 8 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Rutland County in southern Vermont...
  Southwestern Windsor County in southern Vermont...

* Until 830 PM EDT.

* At 750 PM EDT, a severe thunderstorm was located over Tinmouth,
  moving northeast at 30 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and powerlines.

* Locations impacted include...
  Rutland, Pawlet, Mount Holly, Mount Tabor, Tinmouth, Shrewsbury,
  Middletown Springs, Wallingford, Mt. Holly, Mt. Tabor, Danby,
  Rutland - Southern Vermont Airport, Plymouth, Mendon, Clarendon,
  Reading, Wells, Rutland City, Killington and Ira.

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 4330 7298 4331 7326 4340 7325 4368 7287
      4351 7256 4330 7291 4330 7297 4329 7298
      4329 7299
TIME...MOT...LOC 2350Z 234DEG 25KT 4343 7306 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hammond
2 follow-up statements
287 
WWUS51 KBTV 090018
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
818 PM EDT Wed Sep 8 2021

VTC021-027-090030-
/O.CON.KBTV.SV.W.0041.000000T0000Z-210909T0030Z/
Rutland VT-Windsor VT-
818 PM EDT Wed Sep 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHEASTERN RUTLAND AND SOUTHWESTERN WINDSOR COUNTIES...

At 818 PM EDT, a severe thunderstorm was located over Plymouth Union,
moving northeast at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Mount Holly, Mount Tabor, Shrewsbury, Wallingford, Mt. Holly, Mt.
Tabor, Danby, Plymouth, Reading, Ludlow, Killington, Weston,
Tinmouth, Bridgewater, Pawlet, Clarendon, Mendon, Plymouth Union,
Belmont and South Sherburne.

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 4330 7298 4331 7315 4348 7295 4363 7277
      4351 7256 4330 7291 4330 7297 4329 7298
      4329 7299
TIME...MOT...LOC 0018Z 241DEG 32KT 4350 7278 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hammond
941 
WWUS51 KBTV 090026
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
826 PM EDT Wed Sep 8 2021

VTC021-027-090036-
/O.EXP.KBTV.SV.W.0041.000000T0000Z-210909T0030Z/
Rutland VT-Windsor VT-
826 PM EDT Wed Sep 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RUTLAND AND
SOUTHWESTERN WINDSOR COUNTIES WILL EXPIRE AT 830 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 4330 7298 4331 7315 4348 7295 4363 7277
      4351 7256 4330 7291 4330 7297 4329 7298
      4329 7299
TIME...MOT...LOC 0026Z 234DEG 25KT 4352 7274 

$$

Hammond

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 8, 5:31 PM EDTSpecial Weather StatementBTVChittenden29 min
Sep 8, 5:49 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Lamoille, Washington41 min
Sep 8, 6:03 PM EDTAreal Flood WarningBTVChittenden3 hr
Sep 8, 6:25 PM EDTSpecial Weather StatementBTVLamoille, Orleans35 min
Sep 8, 6:46 PM EDTSpecial Weather StatementBTVAddison29 min
Sep 8, 7:10 PM EDTSpecial Weather StatementBTVRutland35 min
Sep 8, 7:38 PM EDTSpecial Weather StatementBTVWindsor37 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.