Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 14, NWS Burlington, VT

June 21, 2021Essex County, New York; 4 counties in Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jun 21, 2021, 5:12 PM EDT for Essex County, New York; 4 counties in Vermont. It was in force for 63 min. 2 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 21, 2021, 5:12 PM EDT (21:12 UTC)
Expired: Jun 21, 2021, 6:15 PM EDT
In force: 63 min
Issued by: NWS Burlington, VT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Essex County, NY, Addison County, VT, Orange County, VT, Rutland County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 100 km from the middle of the area, began a volume at 21:12 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 21, 5:54 PM EDT	TSTM WND DMG	2 Sse Pittsford, VT	TREES AND POWERLINES DOWN ON STEVENS ROAD.
Jun 21, 6:06 PM EDT	TSTM WND DMG	Poultney, VT	TREES DOWN AND A PHONE LINE KNOCKED DOWN IN POULTNEY. TRAINED SPOTTER ALSO REPORTS TREES DOWN IN CASTLETON AND FAIR HAVEN.

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 21, 1:11 PM EDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.2 hours before the alert went out and 111 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: 524 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 990 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 162 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

115 
WUUS51 KBTV 212112
SVRBTV
NYC031-VTC001-017-021-027-212215-
/O.NEW.KBTV.SV.W.0014.210621T2112Z-210621T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
512 PM EDT Mon Jun 21 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Essex County in northern New York...
  West central Orange County in central Vermont...
  Southern Addison County in central Vermont...
  Rutland County in southern Vermont...
  Western Windsor County in southern Vermont...

* Until 615 PM EDT.

* At 512 PM EDT, a severe thunderstorm was located over West Haven,
  moving east at 40 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...
  Rutland, Woodstock, Sudbury, Killington, Ludlow Village, Rutland
  City, Wallingford, Orwell, Rutland - Southern Vermont Airport,
  Benson, Plymouth, Chittenden, West Rutland, Whiting, Ira, West
  Castleton, Mount Holly, Hancock, Poultney Village and Mount Tabor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4331 7325 4353 7324 4356 7326 4358 7330
      4360 7329 4363 7331 4363 7337 4357 7340
      4359 7343 4362 7342 4364 7343 4373 7337
      4377 7335 4379 7336 4381 7340 4378 7374
      4379 7374 4396 7265 4339 7259 4331 7318
TIME...MOT...LOC 2112Z 258DEG 35KT 4361 7340 

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

Neiles

2 follow-up statements

258 
WWUS51 KBTV 212151
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
551 PM EDT Mon Jun 21 2021

NYC031-212200-
/O.CAN.KBTV.SV.W.0014.000000T0000Z-210621T2215Z/
Essex NY-
551 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ESSEX COUNTY 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 900 PM EDT for
central and southern Vermont.

LAT...LON 4378 7336 4382 7331 4387 7322 4396 7265
      4339 7259 4331 7318 4331 7325 4353 7324
      4356 7326 4358 7330 4360 7329 4363 7331
      4363 7337 4357 7340 4359 7343 4362 7342
      4364 7343 4373 7337 4377 7335
TIME...MOT...LOC 2150Z 258DEG 35KT 4369 7289 

$$

VTC001-017-021-027-212215-
/O.CON.KBTV.SV.W.0014.000000T0000Z-210621T2215Z/
Orange VT-Addison VT-Rutland VT-Windsor VT-
551 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR WEST CENTRAL ORANGE...SOUTHEASTERN ADDISON...RUTLAND AND WESTERN
WINDSOR COUNTIES...

At 550 PM EDT, a severe thunderstorm was located over East Pittsford,
moving east at 40 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...
Rutland, Woodstock, Sudbury, Killington, Ludlow Village, Rutland
City, Wallingford, Orwell, Rutland - Southern Vermont Airport,
Benson, Plymouth, Chittenden, West Rutland, Whiting, Ira, West
Castleton, Mount Holly, Poultney Village, Mount Tabor and Shrewsbury.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4378 7336 4382 7331 4387 7322 4396 7265
      4339 7259 4331 7318 4331 7325 4353 7324
      4356 7326 4358 7330 4360 7329 4363 7331
      4363 7337 4357 7340 4359 7343 4362 7342
      4364 7343 4373 7337 4377 7335
TIME...MOT...LOC 2150Z 258DEG 35KT 4369 7289 

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

Neiles

581 
WWUS51 KBTV 212220
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
620 PM EDT Mon Jun 21 2021

VTC001-017-021-027-212229-
/O.EXP.KBTV.SV.W.0014.000000T0000Z-210621T2215Z/
Orange VT-Addison VT-Rutland VT-Windsor VT-
620 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ORANGE...
SOUTHEASTERN ADDISON...RUTLAND AND WESTERN WINDSOR COUNTIES HAS
EXPIRED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central and southern Vermont.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Burlington.

Remember, a Severe Thunderstorm Warning still remains in effect for
Southern Rutland County. 

LAT...LON 4378 7336 4382 7331 4387 7322 4396 7265
      4339 7259 4331 7318 4331 7325 4353 7324
      4356 7326 4358 7330 4360 7329 4363 7331
      4363 7337 4357 7340 4359 7343 4362 7342
      4364 7343 4373 7337 4377 7335
TIME...MOT...LOC 2219Z 258DEG 35KT 4374 7254 

$$

Neiles

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 7:59 AM EDT	Special Weather Statement	BTV	St. Lawrence	61 min
Jun 21, 9:12 AM EDT	Special Weather Statement	BTV	Clinton, Franklin	48 min
Jun 21, 10:08 AM EDT	Special Weather Statement	BTV	Clinton	37 min
Jun 21, 1:06 PM EDT	Special Weather Statement	BTV	St. Lawrence	39 min
Jun 21, 1:28 PM EDT	Special Weather Statement	BTV	St. Lawrence	62 min
Jun 21, 1:41 PM EDT	Severe Thunderstorm Warning	BTV	Franklin, St. Lawrence	49 min
Jun 21, 2:08 PM EDT	Special Weather Statement	BTV	St. Lawrence	67 min
Jun 21, 2:35 PM EDT	Severe Thunderstorm Warning	BTV	Franklin, St. Lawrence	55 min
Jun 21, 3:13 PM EDT	Severe Thunderstorm Warning	BTV	Essex	62 min
Jun 21, 3:25 PM EDT	Severe Thunderstorm Warning	BTV	Clinton, Essex, Franklin, St. Lawrence	54 min
Jun 21, 4:40 PM EDT	Severe Thunderstorm Warning	BTV	Essex	65 min
Jun 21, 4:57 PM EDT	Special Weather Statement	BTV	Essex	48 min
Jun 21, 7:50 PM EDT	Special Weather Statement	BTV	Essex	25 min
Jun 21, 3:07 PM EDT	Special Weather Statement	BTV	Franklin	23 min
Jun 21, 3:47 PM EDT	Special Weather Statement	BTV	Lamoille	58 min
Jun 21, 4:15 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden, Lamoille, Orange, Washington	60 min
Jun 21, 4:54 PM EDT	Special Weather Statement	BTV	Chittenden, Franklin, Lamoille	51 min
Jun 21, 5:17 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Caledonia, Chittenden, Lamoille, Orange, Orleans and 2 more	58 min
Jun 21, 5:39 PM EDT	Special Weather Statement	BTV	Essex	36 min
Jun 21, 6:01 PM EDT	Severe Thunderstorm Warning	BTV	Caledonia, Essex	59 min
Jun 21, 6:18 PM EDT	Severe Thunderstorm Warning	BTV	Rutland, Windsor	57 min
Jun 21, 6:47 PM EDT	Severe Thunderstorm Warning	BTV	Orange, Windsor	28 min
Jun 21, 7:04 PM EDT	Special Weather Statement	BTV	Caledonia	26 min
Jun 21, 7:29 PM EDT	Special Weather Statement	BTV	Caledonia	16 min
Jun 21, 7:50 PM EDT	Special Weather Statement	BTV	Rutland	25 min

Nearby

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