Alert archive / Vermont / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 21, NWS Burlington, VT

July 1, 2004Addison County, Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jul 1, 2004, 2:31 PM EDT for Addison County, Vermont. It was in force for 59 min. 8 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 1, 2004, 2:31 PM EDT (18:31 UTC)
Expired
Jul 1, 2004, 3:30 PM EDT
In force
59 min
Issued by
NWS Burlington, VT
Area
Whole counties

County Addison County, VT

The radar

The Burlington radar (KCXX), 53 km from the middle of the area, began a volume at 18:31 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
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT
Jul 1, 3:10 PM EDTHAIL 1.25Shoreham, VT

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 12:00Z, 6.5 hours before the alert went out and 159 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 2004-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 178 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2004-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
178 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
937 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
51 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.

000 
WUUS51 KBTV 011831
SVRBTV
VTC001-011930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BURLINGTON VT
231 PM EDT THU JUL 1 2004

THE NATIONAL WEATHER SERVICE IN BURLINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ADDISON COUNTY IN CENTRAL VERMONT

* UNTIL 330 PM EDT

* AT 222 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF SHOREHAM...MOVING
  NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR SHOREHAM AROUND 300 PM EDT
  NEAR BRIDPORT AROUND 310 PM EDT
  NEAR CORNWALL...6 MILES SOUTHWEST OF MIDDLEBURY...7 MILES NORTHWEST
  OF SALISBURY...9 MILES NORTHWEST OF LEICESTER AROUND 330 PM EDT.

ADVANCE PLANNING DURING A SEVERE WEATHER WATCH IS ESSENTIAL. MAKE
SURE YOUR FAMILY KNOWS WHERE TO GO...AND WHAT TO DO IN THE EVENT
SEVERE THUNDERSTORM WARNINGS ARE ISSUED.

LAT...LON 4378 7336 4378 7336 4378 7336 4378 7336
      4378 7336 4378 7336 4378 7336 4378 7336
      4378 7336 4378 7336 4378 7336 4378 7336
      4378 7336 4378 7336 4378 7336 4378 7336
      4378 7336 4378 7336 4378 7336 4378 7336

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 3:04 PM EDTSevere Thunderstorm WarningBTVChittenden56 min
Jul 1, 3:06 PM EDTSevere Thunderstorm WarningBTVChittenden54 min
Jul 1, 3:56 PM EDTSevere Thunderstorm WarningBTVChittenden64 min
Jul 1, 4:59 PM EDTSevere Thunderstorm WarningBTVChittenden31 min
Jul 1, 5:04 PM EDTSevere Thunderstorm WarningBTVLamoille56 min
Jul 1, 5:36 PM EDTSevere Thunderstorm WarningBTVGrand Isle24 min
Jul 1, 5:49 PM EDTSevere Thunderstorm WarningBTVFranklin56 min
Jul 1, 5:54 PM EDTSevere Thunderstorm WarningBTVRutland66 min
Jul 1, 6:21 PM EDTSevere Thunderstorm WarningBTVAddison54 min
Jul 1, 7:03 PM EDTSevere Thunderstorm WarningBTVLamoille27 min

Nearby

Severe Thunderstorm Warnings in Vermont, 2004Every severe thunderstorm warning in 2004

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.