Alert archive / Vermont / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 18, NWS Burlington, VT

July 19, 20106 counties in Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jul 19, 2010, 4:47 PM EDT for 6 counties in Vermont. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 19, 2010, 4:47 PM EDT (20:47 UTC)
Expired
Jul 19, 2010, 5:45 PM EDT
In force
58 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon

Counties Addison County, VT, Caledonia County, VT, Orange County, VT, Rutland County, VT, Washington County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 71 km from the middle of the area, began a volume at 20:47 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, 8.8 hours before the alert went out and 173 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 2010-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2010-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 190 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1527 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
190 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 4:05 PM EDTSpecial Weather StatementBTVRutland55 min
Jul 19, 4:34 PM EDTSpecial Weather StatementBTVOrange, Rutland56 min
Jul 19, 4:56 PM EDTSpecial Weather StatementBTVWindsor64 min
Jul 19, 5:16 PM EDTSevere Thunderstorm WarningBTVAddison, Orange, Washington, Windsor44 min
Jul 19, 5:17 PM EDTSpecial Weather StatementBTVWindsor58 min
Jul 19, 5:28 PM EDTAreal Flood AdvisoryBTVAddison, Orange, Washington, Windsor3 hr
Jul 19, 5:58 PM EDTSevere Thunderstorm WarningBTVRutland, Windsor62 min
Jul 19, 3:39 PM EDTSpecial Weather StatementBTVEssex51 min
Jul 19, 3:58 PM EDTSevere Thunderstorm WarningBTVEssex, Franklin47 min
Jul 19, 4:53 PM EDTSpecial Weather StatementBTVEssex37 min

Nearby

Severe Thunderstorm Warnings in Vermont, 2010Every severe thunderstorm warning in 2010

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.