Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 23, NWS Burlington, VT

June 30, 2021Addison County, Rutland County, Windsor County, Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jun 30, 2021, 2:24 PM EDT for Addison County, Rutland County, Windsor County, Vermont. It was in force for 66 min. 3 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 30, 2021, 2:24 PM EDT (18:24 UTC)
Expired: Jun 30, 2021, 3:30 PM EDT
In force: 66 min
Issued by: NWS Burlington, VT
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Addison County, VT, Rutland County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 115 km from the middle of the area, began a volume at 18:28 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 30, 3:03 PM EDT	TSTM WND DMG	1 Sw Quechee, VT	ABOUT 100 TREES SNAPPED/UPROOTED NEAR THE INTERSECTION OF MARSH FAMILY RD. AND DEVENPORT LANE. STRAIGHT LINE WIND GUSTS OF 70-80 MPH ESTIMATED FROM NWS SURVEY.
Jun 30, 3:03 PM EDT	TSTM WND DMG	5 W Hartland, VT	TREE DOWN ON DENSMORE HILL RD
Jun 30, 3:08 PM EDT	TSTM WND DMG	1 Sw Quechee, VT	TREE DOWN ON MARSH FAMILY RD.

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 30, 12:06 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.4 hours before the alert went out and 146 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 113 J/kg
Mixed-layer CIN: -257 J/kg
Mixed-layer LCL: 1162 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

613 
WUUS51 KBTV 301824
SVRBTV
VTC001-021-027-301930-
/O.NEW.KBTV.SV.W.0023.210630T1824Z-210630T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
224 PM EDT Wed Jun 30 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Addison County in central Vermont...
  Northeastern Rutland County in southern Vermont...
  Central Windsor County in southern Vermont...

* Until 330 PM EDT.

* At 223 PM EDT, a severe thunderstorm was located near Chittenden, 
  moving east at 30 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect wind 
           damage to trees and powerlines.

* Locations impacted include...
  Woodstock, Rutland, White River Junction, Hartland Four Corners,
  Killington, Rutland City, Pomfret, Plymouth, Hartland, Chittenden,
  West Rutland, Barnard, Windsor, Woodstock Village, Quechee,
  Stockbridge, Proctor, Brandon, Bridgewater and Mendon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

&&

LAT...LON 4359 7311 4382 7308 4371 7229 4369 7231
      4367 7231 4360 7234 4357 7238 4354 7238
      4353 7240 4351 7240 4350 7238 4348 7238
      4346 7239
TIME...MOT...LOC 1823Z 285DEG 26KT 4370 7287 

HAIL...1.25IN
WIND...60MPH
 
$$

Kutikoff

3 follow-up statements

741 
WWUS51 KBTV 301847
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
247 PM EDT Wed Jun 30 2021

VTC001-021-027-301930-
/O.CON.KBTV.SV.W.0023.000000T0000Z-210630T1930Z/
Addison VT-Rutland VT-Windsor VT-
247 PM EDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTHEASTERN ADDISON...NORTHEASTERN RUTLAND AND CENTRAL WINDSOR
COUNTIES...

At 247 PM EDT, a severe thunderstorm was located over South Pomfret,
moving east at 35 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and powerlines.

Locations impacted include...
Woodstock, Rutland, White River Junction, Hartland Four Corners,
Killington, Rutland City, Pomfret, Plymouth, Hartland, Chittenden,
West Rutland, Barnard, Windsor, Woodstock Village, Quechee,
Stockbridge, Proctor, Brandon, Bridgewater and Mendon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4359 7311 4382 7308 4371 7229 4369 7231
      4367 7231 4360 7234 4357 7238 4354 7238
      4353 7240 4351 7240 4350 7238 4348 7238
      4346 7239
TIME...MOT...LOC 1847Z 283DEG 32KT 4366 7256 

HAIL...1.25IN
WIND...60MPH
 
$$

Kutikoff

634 
WWUS51 KBTV 301905
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
305 PM EDT Wed Jun 30 2021

VTC001-021-301914-
/O.CAN.KBTV.SV.W.0023.000000T0000Z-210630T1930Z/
Addison VT-Rutland VT-
305 PM EDT Wed Jun 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADDISON AND
NORTHEASTERN RUTLAND COUNTIES 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 700 PM EDT for
southern Vermont.

LAT...LON 4353 7275 4376 7264 4373 7241 4371 7229
      4369 7231 4367 7231 4360 7234 4357 7238
      4354 7238 4353 7240 4351 7240 4350 7238
      4348 7238 4346 7239
TIME...MOT...LOC 1904Z 288DEG 31KT 4360 7232 

$$

VTC027-301930-
/O.CON.KBTV.SV.W.0023.000000T0000Z-210630T1930Z/
Windsor VT-
305 PM EDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR CENTRAL WINDSOR COUNTY...

At 304 PM EDT, a severe thunderstorm was located over North Hartland,
moving east at 35 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Law enforcement.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and powerlines.

Law enforcement reported damaging winds in Brandon around 2 PM.

Locations impacted include...
White River Junction, Woodstock, Barnard, Hartland Four Corners,
Windsor, Woodstock Village, Quechee, Pomfret, Hartland, Bridgewater,
Hartford, West Windsor, Plymouth, Reading, Norwich, Sharon, Plymouth
Union, Queechee State Park, North Hartland Dam Recreation Area and
West Woodstock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4353 7275 4376 7264 4373 7241 4371 7229
      4369 7231 4367 7231 4360 7234 4357 7238
      4354 7238 4353 7240 4351 7240 4350 7238
      4348 7238 4346 7239
TIME...MOT...LOC 1904Z 288DEG 31KT 4360 7232 

HAIL...1.25IN
WIND...60MPH
 
$$

Kutikoff

914 
WWUS51 KBTV 301923
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
323 PM EDT Wed Jun 30 2021

VTC027-301933-
/O.EXP.KBTV.SV.W.0023.000000T0000Z-210630T1930Z/
Windsor VT-
323 PM EDT Wed Jun 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WINDSOR COUNTY WILL
EXPIRE AT 330 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 700 PM EDT for
southern Vermont.

LAT...LON 4353 7275 4376 7264 4373 7241 4371 7229
      4369 7231 4367 7231 4360 7234 4357 7238
      4354 7238 4353 7240 4351 7240 4350 7238
      4348 7238 4346 7239
TIME...MOT...LOC 1923Z 285DEG 26KT 4357 7218 

$$

Kutikoff

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 12:44 PM EDT	Special Weather Statement	BTV	Chittenden	46 min
Jun 30, 12:46 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland	59 min
Jun 30, 1:15 PM EDT	Severe Thunderstorm Warning	BTV	Chittenden, Lamoille, Washington	60 min
Jun 30, 1:37 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland, Windsor	53 min
Jun 30, 1:45 PM EDT	Special Weather Statement	BTV	Orange	60 min
Jun 30, 2:17 PM EDT	Special Weather Statement	BTV	Caledonia	58 min
Jun 30, 2:56 PM EDT	Special Weather Statement	BTV	Windsor	49 min
Jun 30, 7:28 PM EDT	Special Weather Statement	BTV	Caledonia, Essex, Lamoille, Orleans	62 min

Nearby

Severe Thunderstorm Warnings in Vermont, 2021 Every 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.