Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 17, NWS Burlington, VT

June 21, 2021Rutland County, Windsor County, Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jun 21, 2021, 6:18 PM EDT for Rutland County, Windsor County, Vermont. It was in force for 57 min. 1 report 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, 6:18 PM EDT (22:18 UTC)
Expired: Jun 21, 2021, 7:15 PM EDT
In force: 57 min
Issued by: NWS Burlington, VT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Rutland County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 111 km from the middle of the area, began a volume at 22:22 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, 6:30 PM EDT	TSTM WND DMG	Tinmouth, VT	TREES AND POWERLINES DOWN IN TINMOUTH AND SOUTHERN RUTLAND.

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, 10.3 hours before the alert went out and 110 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.

254 
WUUS51 KBTV 212218
SVRBTV
VTC021-027-212315-
/O.NEW.KBTV.SV.W.0017.210621T2218Z-210621T2315Z/

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

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Rutland County in southern Vermont...
  Southwestern Windsor County in southern Vermont...

* Until 715 PM EDT.

* At 618 PM EDT, a severe thunderstorm was located over Tinmouth,
  moving east at 20 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, Killington, Ludlow Village, Rutland City, Middletown
  Springs, Wallingford, Mt. Holly, Rutland - Southern Vermont
  Airport, Poultney, Plymouth, Clarendon, Ira, Wells, Pawlet, Mount
  Holly, Ludlow, Poultney Village, Tinmouth, Shrewsbury and Lake St.
  Catherine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4353 7325 4353 7324 4355 7325 4371 7267
      4338 7261 4335 7325
TIME...MOT...LOC 2218Z 258DEG 19KT 4347 7308 

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

Neiles

3 follow-up statements

472 
WWUS51 KBTV 212238
SVSBTV

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

VTC021-027-212315-
/O.CON.KBTV.SV.W.0017.000000T0000Z-210621T2315Z/
Rutland VT-Windsor VT-
638 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHEASTERN RUTLAND AND SOUTHWESTERN WINDSOR COUNTIES...

At 638 PM EDT, a severe thunderstorm was located over East Clarendon,
moving east at 20 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, Mount Holly, Ludlow, Killington, Tinmouth, Shrewsbury,
Ludlow Village, Rutland City, Wallingford, Mt. Holly, Rutland -
Southern Vermont Airport, Plymouth, Bridgewater, Mendon, Clarendon,
Ira, Cavendish, West Rutland, Danby and Mount Tabor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4371 7267 4338 7261 4336 7304 4359 7309
TIME...MOT...LOC 2238Z 258DEG 19KT 4349 7296 

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

Neiles

247 
WWUS51 KBTV 212255
SVSBTV

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

VTC021-027-212315-
/O.CON.KBTV.SV.W.0017.000000T0000Z-210621T2315Z/
Rutland VT-Windsor VT-
655 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHEASTERN RUTLAND AND SOUTHWESTERN WINDSOR COUNTIES...

At 654 PM EDT, a severe thunderstorm was located over North
Shrewsbury, moving east at 20 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...
Mount Holly, Ludlow, Killington, Shrewsbury, Ludlow Village, Mt.
Holly, Plymouth, Bridgewater, Mendon, Cavendish, Reading, Barnard,
Wallingford, Mount Tabor, Weston, Stockbridge, Plymouth Union,
Belmont, South Sherburne and Cuttingsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Burlington.

&&

LAT...LON 4337 7287 4364 7292 4371 7267 4338 7261
TIME...MOT...LOC 2254Z 258DEG 19KT 4351 7284 

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

Neiles

666 
WWUS51 KBTV 212317
SVSBTV

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

VTC021-027-212327-
/O.EXP.KBTV.SV.W.0017.000000T0000Z-210621T2315Z/
Rutland VT-Windsor VT-
717 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RUTLAND AND
SOUTHWESTERN WINDSOR COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.

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

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

LAT...LON 4337 7287 4364 7292 4371 7267 4338 7261
TIME...MOT...LOC 2317Z 258DEG 19KT 4353 7269 

$$

Neiles

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 10:08 AM EDT	Special Weather Statement	BTV	Grand Isle	37 min
Jun 21, 3:07 PM EDT	Special Weather Statement	BTV	Franklin	23 min
Jun 21, 3:13 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Chittenden, Washington	62 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, 4:40 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland, Washington, Windsor	65 min
Jun 21, 4:54 PM EDT	Special Weather Statement	BTV	Chittenden, Franklin, Lamoille	51 min
Jun 21, 5:12 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Orange, Rutland, Windsor	63 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, 6:47 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 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.