Alert archive / Vermont / Special Weather Statements in 2021

Special Weather Statement, NWS Burlington, VT

June 30, 20214 counties in Vermont

NWS Burlington, VT issued this special weather statement at Jun 30, 2021, 7:28 PM EDT for 4 counties in Vermont. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 30, 2021, 7:28 PM EDT (23:28 UTC)
Expired: Jun 30, 2021, 8:30 PM EDT
In force: 62 min
Issued by: NWS Burlington, VT

Counties Caledonia County, VT, Essex County, VT, Lamoille County, VT, Orleans County, VT

The radar

The Burlington radar (KCXX), 119 km from the middle of the area, began a volume at 23:29 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.

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 11.5 hours before the alert went out and 144 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: 906 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1312 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Burlington, VT wrote its last area forecast discussion before this special weather statement went out at Jun 30, 6:45 PM EDT, 43 minutes earlier.

Area forecast discussion, Jun 30, 6:45 PM EDT, 43 minutes before

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Hazardous weather outlook, Jun 30, 4:34 PM EDT, 2 hours 54 minutes before

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In the hours before

Special weather statement, Jun 30, 2:17 PM EDT, 5 hours 11 minutes before

Special Weather Statement
National Weather Service Burlington VT
217 PM EDT Wed Jun 30 2021

VTZ004-007-008-010-301915-
Essex-Caledonia-Washington-Orange-
217 PM EDT Wed Jun 30 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN CALEDONIA...
NORTHEASTERN ORANGE...SOUTHERN ESSEX AND NORTHEASTERN WASHINGTON
COUNTIES...

At 216 PM EDT, a strong thunderstorm was located over Marshfield,
moving east at 35 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Barre, St. Johnsbury, Calais, Waterford, Plainfield, Marshfield
Village, Groton, Marshfield, Cabot Village, Lower Waterford, Barre
Town, Wells River Village, Ryegate, Cabot, Barnet, Groton Village,
Ricker State Park, Peacham, Barre City and East Montpelier.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4438 7181 4435 7181 4434 7185 4435 7191
      4434 7193 4434 7198 4432 7201 4432 7203
      4430 7204 4428 7207 4424 7205 4419 7207
      4415 7204 4418 7251 4443 7248 4440 7180
      4439 7180
TIME...MOT...LOC 1816Z 275DEG 30KT 4431 7235

Banacos

Special weather statement, Jun 30, 2:56 PM EDT, 4 hours 32 minutes before

Special Weather Statement
National Weather Service Burlington VT
256 PM EDT Wed Jun 30 2021

VTZ011-012-019-301945-
Eastern Rutland-Western Rutland-Windsor-
256 PM EDT Wed Jun 30 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN RUTLAND AND
SOUTHWESTERN WINDSOR COUNTIES...

At 256 PM EDT, a strong thunderstorm was located near Mount Tabor,
moving east at 35 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Chester, Cavendish, Ludlow Village, Perkinsville Village,
Wallingford, Mt. Holly, Mt. Tabor, Mount Holly, Ludlow, Andover,
Mount Tabor, Weston, Tinmouth, Shrewsbury, Baltimore, Springfield,
Weathersfield, Reading, West Windsor and Plymouth.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4325 7282 4330 7282 4330 7297 4329 7299
      4330 7298 4331 7301 4345 7306 4354 7289
      4346 7239 4338 7242 4336 7241 4336 7239
      4333 7241 4331 7240 4327 7241 4325 7244
      4323 7243 4324 7255 4322 7269
TIME...MOT...LOC 1856Z 255DEG 31KT 4339 7291

Kutikoff

Local storm report, Jun 30, 3:01 PM EDT, 4 hours 27 minutes before

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Special weather statement, Jun 30, 4:50 PM EDT, 2 hours 38 minutes before

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Local storm report, Jun 30, 5:55 PM EDT, 1 hour 33 minutes before

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Special weather statement, Jun 30, 7:28 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 12:44 PM EDT	Special Weather Statement	BTV	Chittenden	46 min
Jun 30, 12:46 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland	59 min
Jun 30, 1:15 PM EDT	Severe Thunderstorm Warning	BTV	Chittenden, Lamoille, Washington	60 min
Jun 30, 1:37 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland, Windsor	53 min
Jun 30, 1:45 PM EDT	Special Weather Statement	BTV	Orange	60 min
Jun 30, 2:17 PM EDT	Special Weather Statement	BTV	Caledonia	58 min
Jun 30, 2:24 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland, Windsor	66 min
Jun 30, 2:56 PM EDT	Special Weather Statement	BTV	Windsor	49 min
Jun 30, 12:13 PM EDT	Special Weather Statement	BTV	Essex	62 min
Jun 30, 4:50 PM EDT	Special Weather Statement	BTV	St. Lawrence	55 min

Nearby

Special Weather Statements in Vermont, 2021 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.