Alert archive / Vermont / Special Weather Statements in 2012

Special Weather Statement, NWS Burlington, VT

August 5, 2012Addison County, Vermont

NWS Burlington, VT issued this special weather statement at Aug 5, 2012, 8:13 PM EDT for Addison County, Vermont. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 5, 2012, 8:13 PM EDT (00:13 UTC)
Expired
Aug 5, 2012, 9:15 PM EDT
In force
62 min
Issued by
NWS Burlington, VT

County Addison County, VT

The radar

The Burlington radar (KCXX), 42 km from the middle of the area, began a volume at 00:16 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.

What was reported inside it

TimeReportWhereRemark
Aug 5, 8:36 PM EDTTSTM WND DMGEast Middlebury, VTTREES AND POWERLINES DOWN ON ROUTE 125

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 0.2 hours before the alert went out and 175 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-pSkew-T log-p diagram, Albany, NY at 00:00Z on 2012-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1547 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 2012-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1547 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
888 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
1.7
Supercell composite
10.8

Open this sounding in Storm Lab

The text

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

937 
WWUS81 KBTV 060013
SPSBTV

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
813 PM EDT SUN AUG 5 2012

NYZ034-035-VTZ003-005-006-008-009-017-018-060115-
EASTERN ADDISON VT-EASTERN CHITTENDEN VT-EASTERN ESSEX NY-LAMOILLE 
VT-
ORLEANS VT-WASHINGTON VT-WESTERN ADDISON VT-WESTERN CHITTENDEN VT-
WESTERN ESSEX NY-
813 PM EDT SUN AUG 5 2012

...A LINE OF STRONG THUNDERSTORMS WILL MOVE THROUGH ADDISON...
SOUTHEASTERN CHITTENDEN...SOUTHEASTERN ESSEX...SOUTHERN LAMOILLE...
SOUTHWESTERN ORLEANS AND WESTERN WASHINGTON COUNTIES...

AT 807 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
WILLISTON VERMONT TO TICONDEROGA NEW YORK...MOVING NORTHEAST AT 20 
MPH.

WIND GUSTS TO 40 MPH AND DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE 
STORMS. VERY HEAVY RAIN WILL CAUSE WATER TO POND ON ROADS AND IN
POOR DRAINAGE AREAS. THERE MAY BE RAPID RISES ON SMALL STREAMS AND
CREEKS. 

LOCATIONS IMPACTED INCLUDE BUT ARE NOT LIMITED TO...
EXIT 11 I89...EAST MONKTON...WEST BOLTON...JERICHO CENTER...WEST
CORNWALL...SHOREHAM CENTER...BUELS GORE...SALISBURY STATION...NORTH
DUXBURY...LINCOLN...NORTH FAYSTON...WATERBURY...

GET TO SAFETY IMMEDIATELY WHEN THREATENING WEATHER APPROACHES.

LAT...LON 4464 7241 4392 7293 4379 7337 4380 7338
      4379 7355 4444 7310

$$

MUCCILLI

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 8:25 PM EDTSpecial Weather StatementBTVRutland65 min

Nearby

Special Weather Statements in Vermont, 2012Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.