Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Burlington, VT

May 26, 20216 counties in Vermont

NWS Burlington, VT issued this severe thunderstorm warning at May 26, 2021, 3:52 PM EDT for 6 counties in Vermont. It was in force for 53 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, 3:52 PM EDT (19:52 UTC)
Expired
May 26, 2021, 4:45 PM EDT
In force
53 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Addison County, VT, Caledonia County, VT, Chittenden County, VT, Lamoille County, VT, Orange County, VT, Washington County, VT

The radar

The Burlington radar (KCXX), 48 km from the middle of the area, began a volume at 19:52 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.

What was reported inside it

TimeReportWhereRemark
May 26, 4:12 PM EDTTSTM WND DMGWaitsfield, VTSEVERAL 12 INCH DIAMETER BRANCHES DOWNED BY THUNDERSTORM WINDS.
May 26, 4:20 PM EDTTSTM WND DMGBarre, VTNUMEROUS REPORTS OF POWER OUTAGES FROM BARRE THROUGH MARSHFIELD BEGINNING AT 420 PM TO 445 PM.
May 26, 4:27 PM EDTTSTM WND DMG1 Ne Barre, VTNUMEROUS TREES DOWNED ON ROUTE 14 IN BARRE.
May 26, 4:33 PM EDTTSTM WND DMGEast Montpelier, VTTREES AND WIRES DOWN, WITH TREES SNAPPED 15 TO 20 FEET ABOVE THE GROUND.
May 26, 4:35 PM EDTTSTM WND DMGPlainfield, VTTREES AND POWERLINES DOWN ON SCHOOL ST/ROUTE 2 IN PLAINFIELD.

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.

IssuedProductOfficeLasted
May 26, 12:59 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.9 hours before the alert went out and 178 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 2021-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 2021-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 square meters per square second.193958Sfc1 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
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

Open this sounding in Storm Lab

The text

As transmitted.

631 
WUUS51 KBTV 261952
SVRBTV
VTC001-005-007-015-017-023-262045-
/O.NEW.KBTV.SV.W.0005.210526T1952Z-210526T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
352 PM EDT Wed May 26 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southern Lamoille County in northwestern Vermont...
  Southwestern Caledonia County in northeastern Vermont...
  Northwestern Orange County in central Vermont...
  Central Addison County in central Vermont...
  Southeastern Chittenden County in northwestern Vermont...
  Washington County in central Vermont...

* Until 445 PM EDT.

* At 352 PM EDT, a severe thunderstorm was located over Bristol,
  moving east at 50 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...
  Barre, Middlebury, Montpelier, Vergennes, Calais, Plainfield,
  Orange, Waltham, Bristol, Waterbury Village, Websterville, Lincoln,
  East Montpelier, Waitsfield, Berlin, Fayston, New Haven, Worcester,
  Middlesex and Barre Town.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4396 7317 4416 7326 4447 7248 4411 7229
TIME...MOT...LOC 1952Z 248DEG 43KT 4410 7307 

HAIL...1.00IN
WIND...60MPH
 
$$

Lahiff
2 follow-up statements
588 
WWUS51 KBTV 262013
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
413 PM EDT Wed May 26 2021

VTC001-005-007-015-017-023-262045-
/O.CON.KBTV.SV.W.0005.000000T0000Z-210526T2045Z/
Lamoille VT-Caledonia VT-Orange VT-Addison VT-Chittenden VT-
Washington VT-
413 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHERN LAMOILLE...SOUTHWESTERN CALEDONIA...NORTHWESTERN
ORANGE...NORTHEASTERN ADDISON...SOUTHEASTERN CHITTENDEN AND
WASHINGTON COUNTIES...

At 413 PM EDT, a severe thunderstorm was located near Waitsfield,
moving east at 50 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Barre, Montpelier, Calais, Plainfield, Orange, Bristol, Waterbury
Village, Websterville, Lincoln, East Montpelier, Waitsfield, Berlin,
Fayston, Worcester, Middlesex, Barre Town, Northfield Village,
Warren, Duxbury and Northfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4399 7301 4422 7312 4447 7248 4411 7229
TIME...MOT...LOC 2013Z 248DEG 43KT 4420 7274 

HAIL...0.75IN
WIND...60MPH
 
$$

Lahiff
863 
WWUS51 KBTV 262024
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
424 PM EDT Wed May 26 2021

VTC001-005-007-015-017-023-262045-
/O.CON.KBTV.SV.W.0005.000000T0000Z-210526T2045Z/
Lamoille VT-Caledonia VT-Orange VT-Addison VT-Chittenden VT-
Washington VT-
424 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHERN LAMOILLE...SOUTHWESTERN CALEDONIA...NORTHWESTERN
ORANGE...EASTERN ADDISON...SOUTHEASTERN CHITTENDEN AND WASHINGTON
COUNTIES...

At 424 PM EDT, a severe thunderstorm was located over Montpelier,
moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Barre, Montpelier, Calais, Plainfield, Orange, Waterbury Village,
Websterville, East Montpelier, Waitsfield, Berlin, Fayston,
Worcester, Middlesex, Barre Town, Northfield Village, Warren,
Duxbury, Northfield, Moretown and Barre City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. This storm is producing widespread 
wind damage across eastern Addison and western Washington Counties. 
SEEK SHELTER NOW inside a sturdy structure and stay away from 
windows.

&&

LAT...LON 4402 7283 4429 7294 4447 7248 4411 7229
TIME...MOT...LOC 2024Z 248DEG 43KT 4425 7257 

HAIL...<.75IN
WIND...60MPH
 
$$

Lahiff

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 1:56 PM EDTSpecial Weather StatementBTVAddison, Washington64 min
May 26, 2:46 PM EDTSpecial Weather StatementBTVRutland59 min
May 26, 3:15 PM EDTSpecial Weather StatementBTVAddison45 min
May 26, 3:46 PM EDTSpecial Weather StatementBTVRutland44 min
May 26, 4:39 PM EDTSevere Thunderstorm WarningBTVCaledonia, Essex, Orange, Washington51 min
May 26, 4:48 PM EDTSpecial Weather StatementBTVWindsor42 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.