Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 4, NWS Burlington, VT

March 26, 20217 counties in Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Mar 26, 2021, 1:57 PM EDT for 7 counties in Vermont. It was in force for 48 min. 8 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
Mar 26, 2021, 1:57 PM EDT (17:57 UTC)
Expired
Mar 26, 2021, 2:45 PM EDT
In force
48 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Addison County, VT, Caledonia County, VT, Chittenden County, VT, Orange County, VT, Rutland County, VT, Washington County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 79 km from the middle of the area, began a volume at 17:57 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
Mar 26, 2:02 PM EDTTSTM WND DMGWaitsfield, VTSTATE POLICE REPORTED POWER LINES DOWN ACROSS VT ROUTE 100 NEAR ROLSTON ROAD
Mar 26, 2:18 PM EDTTSTM WND DMGBarre, VTTREES AND POWERLINES DOWN
Mar 26, 2:24 PM EDTTSTM WND DMGEast Montpelier, VTTREES AND POWERLINES DOWN
Mar 26, 2:26 PM EDTTSTM WND DMGPlainfield, VTTREES AND POWERLINES DOWN
Mar 26, 2:30 PM EDTTSTM WND DMG1 Sse Montpelier, VTTREE LIMB DAMAGE AND POWERLINE DOWN.
Mar 26, 2:30 PM EDTTSTM WND DMG1 Ssw Montpelier, VTEXTENSIVE TREE LIMB DAMAGE AND POWERLINES DOWN.
Mar 26, 2:30 PM EDTTSTM WND DMGMontpelier Junction, VTMULTIPLE TREES DOWN
Mar 26, 2:32 PM EDTTSTM WND DMGMontpelier, VTTREES AND POWERLINES DOWN ALL OVER MONTPELIER.

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
Mar 26, 11:11 AM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 6.0 hours before the alert went out and 169 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, Gray, ME at 12:00Z on 2021-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Gray, ME at 12:00Z on 2021-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 305 square meters per square second.1939587897Sfc1 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
485 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
305 m²/s²
0-3 km storm-relative helicity
356 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

742 
WUUS51 KBTV 261757
SVRBTV
VTC001-005-007-017-021-023-027-261845-
/O.NEW.KBTV.SV.W.0004.210326T1757Z-210326T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
157 PM EDT Fri Mar 26 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southwestern Caledonia County in northeastern Vermont...
  Orange County in central Vermont...
  Eastern Addison County in central Vermont...
  North central Rutland County in southern Vermont...
  Southeastern Chittenden County in northwestern Vermont...
  Northwestern Windsor County in southern Vermont...
  Washington County in central Vermont...

* Until 245 PM EDT.

* At 156 PM EDT, severe thunderstorms were located along a line
  extending from Camels Hump State Park to near East Warren to Lower
  Granville to near Hancock to near Sudbury, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and powerlines.

* Locations impacted include...
  Barre, Montpelier, Calais, Braintree Hill, Bradford, Orange,
  Websterville, Middlesex, Granville, Marshfield, Cabot Village,
  Tunbridge, Hancock, Corinth Corners, Washington, Ryegate, Cabot,
  Moretown, Newbury and Newbury Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is also occurring with these storms, and will 
greatly reduce visibility. Drivers are urged to use caution and 
adjust speeds accordingly due to the possibility of hydroplaning.

&&

LAT...LON 4400 7211 4384 7257 4377 7309 4395 7293
      4408 7285 4427 7302 4447 7218 4431 7203
      4428 7207 4424 7205 4419 7207 4413 7203
      4410 7205 4410 7203
TIME...MOT...LOC 1756Z 257DEG 37KT 4423 7290 4409 7278 4397 7287 4388
7293 4378 7322

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

JMG
2 follow-up statements
198 
WWUS51 KBTV 261824
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
224 PM EDT Fri Mar 26 2021

VTC001-007-021-261833-
/O.CAN.KBTV.SV.W.0004.000000T0000Z-210326T1845Z/
Addison VT-Rutland VT-Chittenden VT-
224 PM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ADDISON...NORTH
CENTRAL RUTLAND AND SOUTHEASTERN CHITTENDEN COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 400 PM EDT for
central and southern Vermont.

LAT...LON 4400 7211 4384 7257 4383 7264 4399 7260
      4411 7258 4436 7264 4447 7218 4431 7203
      4428 7207 4424 7205 4419 7207 4413 7203
      4410 7205 4410 7203
TIME...MOT...LOC 1823Z 257DEG 37KT 4429 7255 4415 7243 4403 7252 4394
7258 4384 7287

$$

VTC005-017-023-027-261845-
/O.CON.KBTV.SV.W.0004.000000T0000Z-210326T1845Z/
Caledonia VT-Orange VT-Windsor VT-Washington VT-
224 PM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR SOUTHWESTERN CALEDONIA...ORANGE...NORTH CENTRAL WINDSOR AND
NORTHEASTERN WASHINGTON COUNTIES...

At 223 PM EDT, severe thunderstorms were located along a line
extending from East Montpelier Center to East Barre to near East
Brookfield to East Randolph to near Rochester, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Barre, Montpelier, Calais, Bradford, Plainfield, Orange, Chelsea,
Websterville, East Montpelier, Corinth, Marshfield Village, Randolph,
Topsham, Groton, Middlesex, Marshfield, Cabot Village, Barre Town,
Tunbridge and Vershire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is also occurring with these storms, and will 
greatly reduce visibility. Drivers are urged to use caution and 
adjust speeds accordingly due to the possibility of hydroplaning.

&&

LAT...LON 4400 7211 4384 7257 4383 7264 4399 7260
      4411 7258 4436 7264 4447 7218 4431 7203
      4428 7207 4424 7205 4419 7207 4413 7203
      4410 7205 4410 7203
TIME...MOT...LOC 1823Z 257DEG 37KT 4429 7255 4415 7243 4403 7252 4394
7258 4384 7287

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

JMG
473 
WWUS51 KBTV 261841
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
241 PM EDT Fri Mar 26 2021

VTC005-017-023-027-261851-
/O.EXP.KBTV.SV.W.0004.000000T0000Z-210326T1845Z/
Caledonia VT-Orange VT-Windsor VT-Washington VT-
241 PM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CALEDONIA...
ORANGE...NORTH CENTRAL WINDSOR AND NORTHEASTERN WASHINGTON COUNTIES
WILL EXPIRE AT 245 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 400 PM EDT for
central and southern Vermont.

LAT...LON 4400 7211 4384 7257 4383 7264 4399 7260
      4411 7258 4436 7264 4447 7218 4431 7203
      4428 7207 4424 7205 4419 7207 4413 7203
      4410 7205 4410 7203
TIME...MOT...LOC 1841Z 257DEG 37KT 4433 7231 4419 7219 4407 7228 4398
7234 4388 7263

$$

JMG

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 3:03 AM EDTWind AdvisoryBTVCaledonia, Orange, Rutland19 hr
Mar 26, 10:05 AM EDTSpecial Weather StatementBTVRutland25 min
Mar 26, 10:18 AM EDTSpecial Weather StatementBTVWindsor27 min
Mar 26, 1:00 PM EDTSpecial Weather StatementBTVAddison, Chittenden, Grand Isle45 min
Mar 26, 1:11 PM EDTSevere Thunderstorm WarningBTVAddison, Chittenden, Lamoille, Orange, Rutland, Washington and 1 more49 min
Mar 26, 3:12 PM EDTSpecial Weather StatementBTVRutland, Windsor48 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.