Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 3, NWS Burlington, VT

March 26, 20217 counties in Vermont; Clinton County, Essex County, New York

NWS Burlington, VT issued this severe thunderstorm warning at Mar 26, 2021, 1:11 PM EDT for 7 counties in Vermont; Clinton County, Essex County, New York. It was in force for 49 min. 6 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, 1:11 PM EDT (17:11 UTC)
Expired
Mar 26, 2021, 2:00 PM EDT
In force
49 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clinton County, NY, Essex County, NY, Addison County, VT, Chittenden County, VT, Lamoille County, VT, Orange County, VT, Rutland County, VT, Washington County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 71 km from the middle of the area, began a volume at 17:13 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, 1:20 PM EDTTSTM WND DMGCrown Point, NYREPORTS OF A LOT OF TREES DOWN BETWEEN SCHROON LAKE, CROWN POINT AND TICODEROGA.
Mar 26, 1:40 PM EDTTSTM WND DMG2 Ne Middlebury, VT*** 1 INJ *** REPORTS OF STRUCTURAL DAMAGE ON PAINTER ROAD IN MIDDLEBURY. LOTS OF DOWNED TREES ARE ALSO BEING REPORTED.
Mar 26, 1:40 PM EDTTORNADO1 Nne Middlebury, VT*** 2 INJ *** 0.6 MILE LONG TRACK, EF-1 AND 110 MPH ESTIMATED MAXIMUM WIND SPEED. CORRECTION TO TIME AND PATH LENGTH.
Mar 26, 1:50 PM EDTTORNADO2 Ene Middlebury, VT*** 2 INJ *** 1 MILE LONG TRACK, EF-1 AND 110 MPH ESTIMATED MAXIMUM WIND SPEED.
Mar 26, 2:00 PM EDTTSTM WND DMGNew Haven, VTSEVERAL TREES DOWN IN THE NEW HAVEN AND CORNWALL AREAS.
Mar 26, 2:02 PM EDTTSTM WND DMGWaitsfield, VTSTATE POLICE REPORTED POWER LINES DOWN ACROSS VT ROUTE 100 NEAR ROLSTON ROAD

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

Albany, NY (KALY), launched 12:00Z, 5.2 hours before the alert went out and 140 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 2021-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 2021-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 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
2 J/kg
Mixed-layer CIN
-438 J/kg
Mixed-layer LCL
578 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
311 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

364 
WUUS51 KBTV 261711
SVRBTV
NYC019-031-VTC001-007-015-017-021-023-027-261800-
/O.NEW.KBTV.SV.W.0003.210326T1711Z-210326T1800Z/

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

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Clinton County in northern New York...
  Eastern Essex County in northern New York...
  Southwestern Lamoille County in northwestern Vermont...
  Northwestern Orange County in central Vermont...
  Addison County in central Vermont...
  Northern Rutland County in southern Vermont...
  Chittenden County in northwestern Vermont...
  Northwestern Windsor County in southern Vermont...
  Western Washington County in central Vermont...

* Until 200 PM EDT.

* At 110 PM EDT, severe thunderstorms were located along a line
  extending from Deerhead to near Ironville to near Pharoah Mountain,
  moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and powerlines.

* Locations impacted include...
  Essex Junction, Burlington International Airport, Middlebury, South
  Burlington, Burlington, Vergennes, Rutland, Moriah, Willsboro,
  Crown Point, Westport, Elizabethtown, Braintree Hill, Killington,
  Salisbury, Waterbury Village, Orwell, Essex Junction Village,
  Middlesex and Addison.

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 4367 7341 4369 7341 4373 7337 4374 7337
      4377 7335 4379 7336 4381 7338 4378 7370
      4397 7360 4452 7363 4460 7265 4398 7257
      4363 7276
TIME...MOT...LOC 1710Z 268DEG 43KT 4435 7358 4398 7353 4376 7365 

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

JMG
2 follow-up statements
616 
WWUS51 KBTV 261737
SVSBTV

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

NYC019-261747-
/O.CAN.KBTV.SV.W.0003.000000T0000Z-210326T1800Z/
Clinton NY-
137 PM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLINTON COUNTY 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
northern New York...and central, southern and northwestern Vermont.

LAT...LON 4381 7341 4408 7336 4454 7335 4460 7265
      4398 7257 4363 7276 4367 7341 4369 7341
      4373 7337 4374 7337 4377 7335 4379 7336
      4381 7338
TIME...MOT...LOC 1737Z 268DEG 43KT 4436 7315 4399 7311 4377 7323 

$$

NYC031-VTC001-007-015-017-021-023-027-261800-
/O.CON.KBTV.SV.W.0003.000000T0000Z-210326T1800Z/
Essex NY-Lamoille VT-Orange VT-Addison VT-Rutland VT-Chittenden VT-
Windsor VT-Washington VT-
137 PM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR EASTERN ESSEX...SOUTHWESTERN LAMOILLE...NORTHWESTERN ORANGE...
ADDISON...NORTHERN RUTLAND...CHITTENDEN...NORTHWESTERN WINDSOR AND
WESTERN WASHINGTON COUNTIES...

At 137 PM EDT, severe thunderstorms were located along a line
extending from near St. George to East Middlebury to Hortonia, moving
east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Essex Junction, Burlington International Airport, Middlebury, South
Burlington, Burlington, Vergennes, Rutland, Braintree Hill,
Killington, Salisbury, Waterbury Village, Orwell, Essex Junction
Village, Middlesex, Addison, Shoreham, Ripton, Shelburne, Charlotte
and Waltham.

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 4381 7341 4408 7336 4454 7335 4460 7265
      4398 7257 4363 7276 4367 7341 4369 7341
      4373 7337 4374 7337 4377 7335 4379 7336
      4381 7338
TIME...MOT...LOC 1737Z 268DEG 43KT 4436 7315 4399 7311 4377 7323 

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

JMG
348 
WWUS51 KBTV 261758
SVSBTV

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

NYC031-VTC001-007-015-017-021-023-027-261807-
/O.EXP.KBTV.SV.W.0003.000000T0000Z-210326T1800Z/
Essex NY-Lamoille VT-Orange VT-Addison VT-Rutland VT-Chittenden VT-
Windsor VT-Washington VT-
158 PM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ESSEX...SOUTHWESTERN
LAMOILLE...NORTHWESTERN ORANGE...ADDISON...NORTHERN RUTLAND...
CHITTENDEN...NORTHWESTERN WINDSOR AND WESTERN WASHINGTON COUNTIES
WILL EXPIRE AT 200 PM EDT...
    
The storms which prompted the warning have moved east of the area 
and are now covered by another warning. Therefore, the original 
warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 400 PM EDT for
northern New York...and central, southern and northwestern Vermont.

LAT...LON 4381 7341 4408 7336 4454 7335 4460 7265
      4398 7257 4363 7276 4367 7341 4369 7341
      4373 7337 4374 7337 4377 7335 4379 7336
      4381 7338
TIME...MOT...LOC 1757Z 268DEG 43KT 4437 7281 4400 7278 4378 7290 

$$

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, 1:57 PM EDTSevere Thunderstorm WarningBTVAddison, Caledonia, Chittenden, Orange, Rutland, Washington and 1 more48 min
Mar 26, 3:12 PM EDTSpecial Weather StatementBTVRutland, Windsor48 min
Mar 26, 11:08 AM EDTSpecial Weather StatementBTVSt. Lawrence37 min
Mar 26, 11:30 AM EDTSevere Thunderstorm WarningBTVEssex, Franklin, St. Lawrence45 min
Mar 26, 12:13 PM EDTSevere Thunderstorm WarningBTVClinton, Essex, Franklin, St. Lawrence47 min

Nearby

Severe Thunderstorm Warnings in Vermont, 2021Severe Thunderstorm Warnings in New York, 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.