Alert archive / Vermont / Special Weather Statements in 2018

Special Weather Statement, NWS Burlington, VT

August 6, 2018Orleans County, Vermont

NWS Burlington, VT issued this special weather statement at Aug 6, 2018, 7:30 PM EDT for Orleans County, Vermont. It was in force for 45 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 6, 2018, 7:30 PM EDT (23:30 UTC)
Expired: Aug 6, 2018, 8:15 PM EDT
In force: 45 min
Issued by: NWS Burlington, VT

County Orleans County, VT

The radar

The Burlington radar (KCXX), 74 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

Albany, NY (KALY), launched 12:00Z, 11.5 hours before the alert went out and 264 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: 220 J/kg
Mixed-layer CIN: -213 J/kg
Mixed-layer LCL: 1200 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 6, 4:16 PM EDT, 3 hours 14 minutes earlier.

Area forecast discussion, Aug 6, 4:16 PM EDT, 3 hours 14 minutes before

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Hazardous weather outlook, Aug 6, 3:51 PM EDT, 3 hours 39 minutes before

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In the hours before

Special weather statement, Aug 6, 3:07 PM EDT, 4 hours 23 minutes before

Special Weather Statement
National Weather Service Burlington VT
307 PM EDT MON AUG 6 2018

VTZ001-002-016-061945-
Western Franklin-Grand Isle-Eastern Franklin-
307 PM EDT MON AUG 6 2018

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL GRAND ISLE AND
NORTHWESTERN FRANKLIN COUNTIES...

At 306 PM EDT, a strong thunderstorm was located over Swanton, moving
east at 20 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Franklin, Swanton, Swanton Village, Highgate Falls, Highgate,
Sheldon, Lake Carmi State Park, Fairfield, North Hero, Enosburg Falls
Village, St. Albans Town, Berkshire, Enosburg, Swanton Junction,
Sheldon Junction, Highgate Center, North Sheldon, Allens Bay In Grand
Isle County, East Highgate and Cheney Point.

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

LAT...LON 4484 7326 4497 7321 4499 7279 4480 7284
TIME...MOT...LOC 1906Z 273DEG 19KT 4490 7316

Clay

Special weather statement, Aug 6, 4:10 PM EDT, 3 hours 20 minutes before

Special Weather Statement
National Weather Service Burlington VT
410 PM EDT MON AUG 6 2018

VTZ003-062100-
Orleans-
410 PM EDT MON AUG 6 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN ORLEANS COUNTY...

At 410 PM EDT, a strong thunderstorm was located over Troy, moving
southeast at 25 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Newport City, Orleans, Derby Center, Newport Town, Jay In Franklin
County, Irasburg, Orleans Village, Newport Center, North Troy
Village, Brownington, Derby, Coventry, Troy, Barton Village,
Brownington Village, Derby Center Village, Barton, Derby Line
Village, Jay and Holland.

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

LAT...LON 4499 7202 4474 7218 4494 7248 4501 7245
      4501 7223
TIME...MOT...LOC 2010Z 293DEG 21KT 4494 7240

Clay

Special weather statement, Aug 6, 7:30 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Burlington VT
730 PM EDT MON AUG 6 2018

VTZ003-006-016-070015-
Eastern Franklin-Orleans-Lamoille-
730 PM EDT MON AUG 6 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN LAMOILLE...CENTRAL
ORLEANS AND SOUTHEASTERN FRANKLIN COUNTIES...

At 730 PM EDT, a strong thunderstorm was located over Bakersfield,
moving east at 25 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Newport City, Orleans, Derby Center, Newport Town, Eden, Westmore,
Bakersfield, Orleans Village, Montgomery Center, Brownington, Albany,
Montgomery, Coventry, Barton, Troy, Belvidere Center, Brownington
Village, Belvidere, Waterville and Irasburg.

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

LAT...LON 4500 7209 4474 7201 4474 7209 4475 7211
      4473 7211 4469 7282 4478 7285 4485 7284
TIME...MOT...LOC 2330Z 261DEG 21KT 4478 7275

Clay

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 3:07 PM EDT	Special Weather Statement	BTV	Franklin	38 min
Aug 6, 4:10 PM EDT	Special Weather Statement	BTV	Orleans	50 min
Aug 6, 7:54 PM EDT	Special Weather Statement	BTV	Essex	51 min

Nearby

Special Weather Statements in Vermont, 2018 Every special weather statement in 2018

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.