Alert archive / Vermont / Special Weather Statements in 2012

Special Weather Statement, NWS Burlington, VT

August 9, 2012Orleans County, Vermont

NWS Burlington, VT issued this special weather statement at Aug 9, 2012, 7:48 PM EDT for Orleans County, Vermont. It was in force for 57 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 9, 2012, 7:48 PM EDT (23:48 UTC)
Expired: Aug 9, 2012, 8:45 PM EDT
In force: 57 min
Issued by: NWS Burlington, VT

County Orleans County, VT

The radar

The Burlington radar (KCXX), 71 km from the middle of the area, began a volume at 23:49 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, 11.8 hours before the alert went out and 216 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: 7 J/kg
Mixed-layer CIN: -227 J/kg
Mixed-layer LCL: 1306 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 9, 7:32 PM EDT, 16 minutes earlier.

Area forecast discussion, Aug 9, 7:32 PM EDT, 16 minutes before

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Hazardous weather outlook, Aug 9, 3:50 PM EDT, 3 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BURLINGTON VT
350 PM EDT THU AUG 9 2012

NYZ026>031-034-035-087-VTZ001>012-016>019-102000-
NORTHERN ST. LAWRENCE-NORTHERN FRANKLIN-EASTERN CLINTON-
SOUTHEASTERN ST. LAWRENCE-SOUTHERN FRANKLIN-WESTERN CLINTON-
WESTERN ESSEX-EASTERN ESSEX-SOUTHWESTERN ST. LAWRENCE-GRAND ISLE-
WESTERN FRANKLIN-ORLEANS-ESSEX-WESTERN CHITTENDEN-LAMOILLE-CALEDONIA-
WASHINGTON-WESTERN ADDISON-ORANGE-WESTERN RUTLAND-WINDSOR-
EASTERN FRANKLIN-EASTERN CHITTENDEN-EASTERN ADDISON-EASTERN RUTLAND-
350 PM EDT THU AUG 9 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW YORK...CENTRAL
VERMONT...NORTHEAST VERMONT...NORTHWEST VERMONT AND SOUTHERN
VERMONT.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE NORTH
COUNTRY THROUGH MIDNIGHT TONIGHT BEFORE TAPERING OFF. LOOK FOR
VERY HEAVY DOWNPOURS WITH THE STORMS ALONG WITH SMALL HAIL AND
GUSTY WINDS. THE GREATEST THREAT FOR THE STRONGER STORMS WILL BE
ACROSS THE NORTHERN ADIRONDACKS AND THE CENTRAL AND SOUTHERN
SECTION OF VERMONT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE THREAT FOR MORE THUNDERSTORMS WILL CONTINUE FRIDAY AND SATURDAY
AS THE AREAL COVERAGE OF STORMS BECOMES FAIRLY WIDESPREAD. ANY
STORMS WILL HAVE THE POTENTIAL TO PRODUCE VERY HEAVY DOWNPOURS.
THE COMBINATION OF SHOWERS AND THUNDERSTORMS OVER THE FRIDAY AND
SATURDAY TIME PERIOD COULD RESULT IN SOME ONE TO TWO INCH RAINFALL
AMOUNTS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Aug 9, 3:30 PM EDT, 4 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
330 PM EDT THU AUG 09 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     TSTM WND DMG     2 WNW SEVERANCE         43.89N  73.77W
08/09/2012                   ESSEX              NY   PUBLIC

            LIMBS AND BRANCHES DOWN THROUGHOUT CAMPGROUND

&&

EVENT NUMBER BTV1200373

TABER

Local storm report, Aug 9, 3:31 PM EDT, 4 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
331 PM EDT THU AUG 09 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     HAIL             2 WNW SEVERANCE         43.89N  73.77W
08/09/2012  E0.75 INCH       ESSEX              NY   PUBLIC

&&

EVENT NUMBER BTV1200374

TABER

Special weather statement, Aug 9, 4:14 PM EDT, 3 hours 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
414 PM EDT THU AUG 9 2012

VTZ008>012-018-092115-
EASTERN ADDISON VT-ORANGE VT-WASHINGTON VT-WESTERN ADDISON VT-
WESTERN RUTLAND VT-WINDSOR VT-
414 PM EDT THU AUG 9 2012

...A STRONG THUNDERSTORM WILL MOVE THROUGH CENTRAL ADDISON...NORTH
CENTRAL RUTLAND...NORTHWESTERN WINDSOR...SOUTHWESTERN WASHINGTON AND
WESTERN ORANGE COUNTIES...

AT 406 PM EDT...A STRONG THUNDERSTORM WAS NEAR EAST MIDDLEBURY...
MOVING EAST AT 15 MPH.

WIND GUSTS TO 40 MPH AND SMALL HAIL UP TO DIME SIZE ARE POSSIBLE WITH
THIS STORM. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED
LEVELS ON SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY
ROADS AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

LOCATIONS IMPACTED INCLUDE BUT ARE NOT LIMITED TO...
RIPTON...GOSHEN...BREAD LOAF...SOUTH LINCOLN...ROBINSON...
GRANVILLE...HANCOCK...BRAINTREE...WEST BROOKFIELD...

BE CAREFUL WHEN DRIVING. PONDING WATER ON ROADWAYS CAN CREATE
DANGEROUS DRIVING CONDITIONS...AND HEAVY RAINFALL WILL REDUCE
VISIBILITY.

LAT...LON 4415 7260 4388 7253 4384 7317 4403 7321

Special weather statement, Aug 9, 4:45 PM EDT, 3 hours 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
445 PM EDT THU AUG 9 2012

VTZ004-007-008-010-092145-
CALEDONIA VT-ESSEX VT-ORANGE VT-WASHINGTON VT-
445 PM EDT THU AUG 9 2012

...A LINE OF STRONG THUNDERSTORMS WILL MOVE THROUGH EASTERN
WASHINGTON...NORTHERN ORANGE...SOUTHERN CALEDONIA AND SOUTHWESTERN
ESSEX COUNTIES...

AT 436 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
ADAMANT TO NORTHFIELD FALLS...MOVING EAST AT 20 MPH.

WIND GUSTS TO 50 MPH AND SMALL HAIL UP TO DIME SIZE ARE POSSIBLE WITH
THESE STORMS. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE
ELEVATED LEVELS ON SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON
COUNTRY ROADS AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

LOCATIONS IMPACTED INCLUDE BUT ARE NOT LIMITED TO...
MARSHFIELD...NORTH MONTPELIER...LOWER CABOT...CABOT...EAST CABOT...
ORANGE...EWELLS MILLS...WEST DANVILLE...DANVILLE...WEST BARNET...
PASSUMPSIC...EXIT 19 I91...

BE CAREFUL WHEN DRIVING. PONDING WATER ON ROADWAYS CAN CREATE
DANGEROUS DRIVING CONDITIONS...AND HEAVY RAINFALL WILL REDUCE
VISIBILITY.

LAT...LON 4433 7187 4434 7191 4433 7193 4433 7198
      4431 7203 4428 7206 4425 7204 4418 7205
      4416 7204 4413 7207 4409 7279 4441 7247
      4445 7175

Special weather statement, Aug 9, 5:00 PM EDT, 2 hours 48 minutes before

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Special weather statement, Aug 9, 7:48 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 9, 1:51 PM EDT	Severe Thunderstorm Warning	BTV	Addison	84 min
Aug 9, 3:16 PM EDT	Special Weather Statement	BTV	Addison	59 min
Aug 9, 4:14 PM EDT	Special Weather Statement	BTV	Addison	61 min
Aug 9, 4:45 PM EDT	Special Weather Statement	BTV	Caledonia	60 min
Aug 9, 5:00 PM EDT	Special Weather Statement	BTV	Addison	3 hr
Aug 9, 6:26 PM EDT	Flash Flood Warning	BTV	Addison, Rutland	3 hr
Aug 9, 1:30 PM EDT	Special Weather Statement	BTV	Franklin	60 min

Nearby

Special Weather Statements in Vermont, 2012 Every special weather statement in 2012

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.