Alert archive / Vermont / Special Weather Statements in 2012

Special Weather Statement, NWS Albany, NY

August 4, 2012Windham County, Vermont

NWS Albany, NY issued this special weather statement at Aug 4, 2012, 2:13 PM EDT for Windham County, Vermont. It was in force for 32 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 4, 2012, 2:13 PM EDT (18:13 UTC)
Expired
Aug 4, 2012, 2:45 PM EDT
In force
32 min
Issued by
NWS Albany, NY

County Windham County, VT

The radar

The Albany radar (KENX), 106 km from the middle of the area, began a volume at 18:17 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, 6.2 hours before the alert went out and 85 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 12:00Z on 2012-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1175 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 12:00Z on 2012-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
1175 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
65 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.

387 
WWUS81 KALY 041813
SPSALY

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
213 PM EDT SAT AUG 4 2012

VTZ014-041845-
WESTERN WINDHAM VT-
213 PM EDT SAT AUG 4 2012

...A STRONG THUNDERSTORM IN

  WINDHAM COUNTY IN SOUTHERN VERMONT...

AT 207 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
THUNDERSTORM CAPABLE OF PRODUCING...NICKEL SIZE HAIL...WINDS AROUND 
50 MPH...FREQUENT LIGHTNING...AND HEAVY RAIN.  THIS STORM WAS 
LOCATED NEAR WILMINGTON...OR ABOUT 13 MILES WEST OF BRATTLEBORO. 
THIS STORM WAS NEARLY STATIONARY.

THE THUNDERSTORM WILL BE NEAR...
WILMINGTON BY 245 PM EDT

RAINFALL RATES COULD REACH AN INCH AN HOUR FROM THIS THUNDERSTORM.

LAT...LON 4274 7279 4285 7293 4302 7288 4289 7266
TIME...MOT...LOC 1812Z 122DEG 1KT 4286 7283

$$

TAW

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 4, 2:36 PM EDTAreal Flood AdvisoryALYWindham3 hr
Aug 4, 3:15 PM EDTSpecial Weather StatementALYWindham60 min
Aug 4, 3:30 PM EDTAreal Flood AdvisoryALYBennington, Windham2 hr
Aug 4, 2:46 PM EDTSpecial Weather StatementALYFranklin29 min
Aug 4, 3:29 PM EDTAreal Flood AdvisoryALYBerkshire2 hr
Aug 4, 4:11 PM EDTFlash Flood WarningALYBerkshire109 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.