Alert archive / Vermont / Special Weather Statements in 2012

Special Weather Statement, NWS Burlington, VT

August 9, 2012Orange County, Vermont

NWS Burlington, VT issued this special weather statement at Aug 9, 2012, 9:01 PM EDT for Orange County, Vermont. It was in force for 89 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, 9:01 PM EDT (01:01 UTC)
Expired: Aug 9, 2012, 10:30 PM EDT
In force: 89 min
Issued by: NWS Burlington, VT

County Orange County, VT

The radar

The Burlington radar (KCXX), 100 km from the middle of the area, began a volume at 01:02 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 00:00Z, 1.0 hours before the alert went out and 152 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: 24 J/kg
Mixed-layer CIN: -165 J/kg
Mixed-layer LCL: 1274 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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, 8:16 PM EDT, 45 minutes earlier.

Area forecast discussion, Aug 9, 8:16 PM EDT, 45 minutes before

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Hazardous weather outlook, Aug 9, 3:50 PM EDT, 5 hours 11 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

Special weather statement, Aug 9, 5:00 PM EDT, 4 hours 1 minute before

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Special weather statement, Aug 9, 7:48 PM EDT, 1 hour 13 minutes before

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Local storm report, Aug 9, 7:57 PM EDT, 1 hour 4 minutes before

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Local storm report, Aug 9, 8:51 PM EDT, 10 minutes before

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Local storm report, Aug 9, 8:55 PM EDT, 6 minutes before

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Special weather statement, Aug 9, 9:01 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 10, 4:23 AM EDT	Special Weather Statement	BTV	Chittenden, Franklin, Grand Isle, Lamoille	52 min
Aug 10, 2:40 PM EDT	Special Weather Statement	BTV	Washington	50 min
Aug 10, 3:24 AM EDT	Special Weather Statement	BTV	Clinton, Franklin	51 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.