Alert archive / Vermont / Special Weather Statements in 2011
Special Weather Statement, NWS Burlington, VT
NWS Burlington, VT issued this special weather statement at May 29, 2011, 11:10 PM EDT for Caledonia County, Lamoille County, Vermont. It was in force for 65 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
- May 29, 2011, 11:10 PM EDT (03:10 UTC)
- Expired
- May 30, 2011, 12:15 AM EDT
- In force
- 65 min
- Issued by
- NWS Burlington, VT
Counties Caledonia County, VT, Lamoille County, VT
The radar
The Burlington radar (KCXX), 53 km from the middle of the area, began a volume at 03:14 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 00:00Z, 3.2 hours before the alert went out and 196 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
- 843 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
242 WWUS81 KBTV 300310 SPSBTV SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 1110 PM EDT SUN MAY 29 2011 VTZ002-003-005>008-016-017-300415- CALEDONIA VT-EASTERN CHITTENDEN VT-EASTERN FRANKLIN VT-LAMOILLE VT- ORLEANS VT-WASHINGTON VT-WESTERN CHITTENDEN VT-WESTERN FRANKLIN VT- 1110 PM EDT SUN MAY 29 2011 ...A STRONG THUNDERSTORM WILL AFFECT LAMOILLE...NORTHEASTERN CHITTENDEN...NORTHEASTERN WASHINGTON...NORTHWESTERN CALEDONIA...SOUTH CENTRAL FRANKLIN AND SOUTH CENTRAL ORLEANS COUNTIES... AT 1107 PM EDT...A STRONG THUNDERSTORM WAS 4 MILES NORTHEAST OF COLCHESTER...MOVING EAST AT 30 MPH. WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM. EXPECT DANGEROUS LIGHTNING. 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... NORTH UNDERHILL...CLOVERDALE...PLEASANT VALLEY...UNDERHILL STATE PARK...SOUTH CAMBRIDGE...SMUGGLERS NOTCH...HYDE PARK...CADYS FALLS... GARFIELD...GREEN RIVER RESERVOIR STA...NORTH WOLCOTT...WOLCOTT... GET TO SAFETY IMMEDIATELY WHEN THREATENING WEATHER APPROACHES. LAT...LON 4473 7207 4443 7206 4449 7316 4463 7318 $$
The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 10:04 PM EDT | Special Weather Statement | BTV | Chittenden | 56 min |
| May 29, 11:11 PM EDT | Special Weather Statement | BTV | Orleans | 64 min |
| May 29, 11:40 PM EDT | Special Weather Statement | BTV | Orange | 50 min |
| May 30, 12:32 AM EDT | Special Weather Statement | BTV | Essex | 28 min |
| May 30, 12:39 AM EDT | Areal Flood Advisory | BTV | Addison, Caledonia, Chittenden, Lamoille, Orange, Rutland and 2 more | 22 min |
| May 30, 1:00 AM EDT | Flash Flood Warning | BTV | Addison, Caledonia, Chittenden, Lamoille, Orange, Washington and 1 more | 4 hr |
| May 30, 12:14 AM EDT | Flash Flood Warning | BTV | Essex, Franklin | 5 hr |
Nearby
Special Weather Statements in Vermont, 2011Every special weather statement in 2011
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.