Alert archive / Vermont / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 1, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at May 4, 2010, 1:04 PM EDT for 6 counties in Vermont. It was in force for 41 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
- May 4, 2010, 1:04 PM EDT (17:04 UTC)
- Expired
- May 4, 2010, 1:45 PM EDT
- In force
- 41 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
Counties Caledonia County, VT, Chittenden County, VT, Franklin County, VT, Lamoille County, VT, Orleans County, VT, Washington County, VT
The radar
The Burlington radar (KCXX), 46 km from the middle of the area, began a volume at 17:04 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 12:00Z, 5.1 hours before the alert went out and 202 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2026 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at May 4, 10:02 AM EDT, 3 hours 2 minutes earlier.
Area forecast discussion, May 4, 10:02 AM EDT, 3 hours 2 minutes before
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Special weather statement, May 4, 10:56 AM EDT, 2 hours 8 minutes before
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</html>The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 10:56 AM EDT | Special Weather Statement | BTV | Addison | 49 min |
| May 4, 11:41 AM EDT | Special Weather Statement | BTV | Addison | 49 min |
| May 4, 12:28 PM EDT | Special Weather Statement | BTV | Chittenden | 47 min |
| May 4, 3:28 PM EDT | Special Weather Statement | BTV | Rutland, Windsor | 62 min |
| May 4, 4:34 PM EDT | Special Weather Statement | BTV | Windsor | 56 min |
| May 4, 5:03 PM EDT | Special Weather Statement | BTV | Grand Isle | 57 min |
| May 4, 5:51 PM EDT | Special Weather Statement | BTV | Chittenden, Lamoille, Washington | 54 min |
| May 4, 6:00 PM EDT | Severe Thunderstorm Warning | BTV | Addison, Chittenden, Franklin, Grand Isle, Lamoille, Washington | 45 min |
| May 4, 6:21 PM EDT | Special Weather Statement | BTV | Addison | 54 min |
| May 4, 6:40 PM EDT | Special Weather Statement | BTV | Lamoille, Orleans, Washington | 65 min |
| May 4, 7:45 PM EDT | Special Weather Statement | BTV | Caledonia, Essex, Orleans | 60 min |
| May 4, 2:55 PM EDT | Special Weather Statement | BTV | St. Lawrence | 65 min |
| May 4, 4:01 PM EDT | Special Weather Statement | BTV | Franklin, St. Lawrence | 59 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.