Alert archive / Vermont / Special Weather Statements in 2017

Special Weather Statement, NWS Burlington, VT

August 3, 2017Orange County, Vermont

NWS Burlington, VT issued this special weather statement at Aug 3, 2017, 6:06 PM EDT for Orange County, Vermont. It was in force for 39 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: Aug 3, 2017, 6:06 PM EDT (22:06 UTC)
Expired: Aug 3, 2017, 6:45 PM EDT
In force: 39 min
Issued by: NWS Burlington, VT

County Orange County, VT

The radar

The Burlington radar (KCXX), 73 km from the middle of the area, began a volume at 22:10 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, 10.1 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-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: 4 J/kg
Mixed-layer CIN: -186 J/kg
Mixed-layer LCL: 1323 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Aug 3, 4:50 PM EDT, 1 hour 16 minutes earlier.

Area forecast discussion, Aug 3, 4:50 PM EDT, 1 hour 16 minutes before

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Hazardous weather outlook, Aug 3, 5:04 PM EDT, 1 hour 2 minutes before

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In the hours before

Special weather statement, Aug 3, 4:19 PM EDT, 1 hour 47 minutes before

Special Weather Statement
National Weather Service Burlington VT
419 PM EDT THU AUG 3 2017

NYZ026-027-029-030-087-032100-
Northern St. Lawrence-Northern Franklin-Southeastern St.
Lawrence-Southern Franklin-Southwestern St. Lawrence-
419 PM EDT THU AUG 3 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL FRANKLIN AND
NORTHEASTERN ST. LAWRENCE COUNTIES...

At 418 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Canton to near Parishville to near
Lake Ozonia to near Madawaska. Movement was northeast at 30 mph.

Winds in excess of 40 mph are possible with these storms.

Locations impacted include...
Potsdam, Canton, Moira, Parishville, Debar Mountain, Bryants Mill,
Norwood, Brasher Falls, Lake Ozonia, Madawaska, Brushton,
Lawrenceville, Dickinson, Hopkinton, Santa Clara, North Stockholm,
West Bangor, Dickinson Center, Duane Center and West Parishville.

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

LAT...LON 4482 7490 4487 7456 4471 7413 4457 7403
      4432 7447 4448 7459 4457 7493 4455 7528
TIME...MOT...LOC 2018Z 235DEG 25KT 4466 7509 4467 7485 4460 7446 4449
7434

RDeal

Special weather statement, Aug 3, 4:22 PM EDT, 1 hour 44 minutes before

Special Weather Statement
National Weather Service Burlington VT
422 PM EDT THU AUG 3 2017

VTZ011-012-019-032045-
Western Rutland-Eastern Rutland-Windsor-
422 PM EDT THU AUG 3 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN RUTLAND AND WEST
CENTRAL WINDSOR COUNTIES...

At 421 PM EDT, a strong thunderstorm was located over Mendon, moving
northeast at 15 mph.

Winds have already gusted to 40 mph at the RUT airport with this
storm and continue to be capable of gusting in excess of 40 mph.

Locations impacted include...
Rutland, Stockbridge, Chittenden, Mendon, Pittsfield, Killington,
Shrewsbury, Rutland City, Bridgewater, Barnard, Clarendon, Plymouth,
Pittsford, East Pittsford, North Clarendon, South Sherburne, Giffords
Woods State Forest Park, North Sherburne, Center Rutland and Gifford
Woods State Park.

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

LAT...LON 4359 7303 4384 7292 4370 7259 4351 7281
TIME...MOT...LOC 2021Z 209DEG 14KT 4362 7288

Special weather statement, Aug 3, 4:27 PM EDT, 1 hour 39 minutes before

Special Weather Statement
National Weather Service Burlington VT
427 PM EDT THU AUG 3 2017

NYZ034-035-VTZ005-032115-
Western Essex-Eastern Essex-Western Chittenden-
427 PM EDT THU AUG 3 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ESSEX AND WEST
CENTRAL CHITTENDEN COUNTIES...

At 427 PM EDT, a strong thunderstorm was located near Elizabethtown,
moving northeast at 15 mph.

Winds in excess of 30 mph and pea size hail are possible with this
storm.

Locations impacted include...
Essex, Willsboro, Westport, Elizabethtown, Shelburne, Keeseville,
Charlotte, Lewis, Brown Point, Mcneil Cove, Sloop Island, Shelburne
Falls, Wings Point, Meach Island, Hatch Point, Willsboro Point,
Cannon Point, Sled Runner Point, Orchard Point and Queneska Island.

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

LAT...LON 4438 7316 4414 7348 4425 7369 4449 7351
      4449 7350 4450 7349 4451 7347 4452 7346
      4454 7346
TIME...MOT...LOC 2027Z 216DEG 12KT 4426 7353

Hanson

Special weather statement, Aug 3, 4:58 PM EDT, 1 hour 8 minutes before

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Special weather statement, Aug 3, 5:14 PM EDT, 52 minutes before

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Special weather statement, Aug 3, 6:06 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
Aug 2, 9:46 PM EDT	Severe Thunderstorm Warning	BTV	Franklin, Grand Isle	44 min
Aug 3, 12:46 PM EDT	Special Weather Statement	BTV	Orleans	59 min
Aug 3, 4:22 PM EDT	Special Weather Statement	BTV	Windsor	23 min
Aug 3, 4:27 PM EDT	Special Weather Statement	BTV	Chittenden	48 min
Aug 3, 5:14 PM EDT	Special Weather Statement	BTV	Caledonia	46 min
Aug 3, 12:40 PM EDT	Special Weather Statement	BTV	Franklin	65 min
Aug 3, 1:23 PM EDT	Special Weather Statement	BTV	Clinton	52 min
Aug 3, 1:46 PM EDT	Special Weather Statement	BTV	Clinton	44 min
Aug 3, 1:53 PM EDT	Special Weather Statement	BTV	Clinton	37 min
Aug 3, 2:20 PM EDT	Special Weather Statement	BTV	Franklin	25 min
Aug 3, 2:53 PM EDT	Special Weather Statement	BTV	St. Lawrence	37 min
Aug 3, 3:01 PM EDT	Special Weather Statement	BTV	Franklin	59 min
Aug 3, 3:31 PM EDT	Special Weather Statement	BTV	St. Lawrence	44 min
Aug 3, 4:19 PM EDT	Special Weather Statement	BTV	Franklin	41 min
Aug 3, 4:32 PM EDT	Flash Flood Warning	BTV	Franklin, St. Lawrence	4 hr
Aug 3, 4:58 PM EDT	Special Weather Statement	BTV	St. Lawrence	47 min

Nearby

Special Weather Statements in Vermont, 2017 Every special weather statement in 2017

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.