Alert archive / Vermont / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 45, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at Jul 14, 2020, 4:40 AM EDT for Orange 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 counties it named.
The facts
- Issued
- Jul 14, 2020, 4:40 AM EDT (08:40 UTC)
- Expired
- Jul 14, 2020, 5:45 AM EDT
- In force
- 65 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Orange County, VT
The radar
The Burlington radar (KCXX), 84 km from the middle of the area, began a volume at 08:43 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, 8.7 hours before the alert went out and 170 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
- 290 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1063 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Jul 14, 2:53 AM EDT, 1 hour 47 minutes earlier.
Area forecast discussion, Jul 14, 2:53 AM EDT, 1 hour 47 minutes before
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</html>Hazardous weather outlook, Jul 14, 2:06 AM EDT, 2 hours 34 minutes before
Hazardous Weather Outlook National Weather Service Burlington VT 206 AM EDT Tue Jul 14 2020 NYZ026>031-034-035-087-VTZ001>012-016>019-150615- Northern St. Lawrence-Northern Franklin-Eastern Clinton- Southeastern St. Lawrence-Southern Franklin-Western Clinton- Western Essex-Eastern Essex-Southwestern St. Lawrence-Grand Isle- Western Franklin-Orleans-Essex-Western Chittenden-Lamoille-Caledonia- Washington-Western Addison-Orange-Western Rutland-Windsor- Eastern Franklin-Eastern Chittenden-Eastern Addison-Eastern Rutland- 206 AM EDT Tue Jul 14 2020 This Hazardous Weather Outlook is for northern New York, central Vermont, northeast Vermont, northwest Vermont and southern Vermont. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jul 14, 2:51 AM EDT, 1 hour 49 minutes before
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</html>Special weather statement, Jul 14, 3:30 AM EDT, 1 hour 10 minutes before
Special Weather Statement National Weather Service Burlington VT 330 AM EDT Tue Jul 14 2020 VTZ010-012-140815- Windsor-Orange- 330 AM EDT Tue Jul 14 2020 ...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL ORANGE AND NORTHEASTERN WINDSOR COUNTIES... At 330 AM EDT, a strong thunderstorm was located over Pomfret, moving northeast at 5 mph. Winds in excess of 30 mph are possible with this storm. Locations impacted include... Royalton, Sharon, Pomfret, Tunbridge, Strafford, Barnard, Thetford, South Tunbridge, South Strafford, South Royalton, North Pomfret and East Barnard. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 4370 7250 4374 7261 4390 7250 4384 7229 TIME...MOT...LOC 0730Z 204DEG 6KT 4374 7251 Haynes
Special weather statement, Jul 14, 3:44 AM EDT, 56 minutes before
Special Weather Statement
National Weather Service Burlington VT
344 AM EDT Tue Jul 14 2020
VTZ012-140830-
Windsor-
344 AM EDT Tue Jul 14 2020
...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL WINDSOR COUNTY...
At 344 AM EDT, a strong thunderstorm was located over Windsor, moving
northeast at 10 mph.
Winds in excess of 30 mph are possible with this storm.
Locations impacted include...
Woodstock, Hartland Four Corners, Windsor, Hartland, Hartford,
Quechee, West Windsor, Weathersfield, Queechee State Park,
Taftsville, Brownsville, North Hartland Dam Recreation Area, Ascutney
State Park and North Hartland.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 4354 7254 4371 7243 4364 7232 4360 7234
4357 7238 4354 7238 4351 7240 4350 7238
4348 7238 4347 7239 4345 7239 4342 7243
TIME...MOT...LOC 0744Z 221DEG 9KT 4349 7243
HaynesSpecial weather statement, Jul 14, 4:10 AM EDT, 30 minutes before
Special Weather Statement
National Weather Service Burlington VT
410 AM EDT Tue Jul 14 2020
VTZ010-012-140900-
Windsor-Orange-
410 AM EDT Tue Jul 14 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN ORANGE AND
NORTHEASTERN WINDSOR COUNTIES...
At 410 AM EDT, radar indicated strong thunderstorms were located
along a line extending from Tunbridge to near Strafford to near
Thetford to near Norwich. Movement was east at 35 mph.
Winds in excess of 30 mph are possible with these storms.
Locations impacted include...
West Fairlee, Tunbridge, Vershire, Corinth Corners, Thetford Hill
State Park, Chelsea, Thetford Center, Strafford, Norwich, Thetford,
Sharon, Fairlee, Corinth, Washington, Randolph, West Fairlee Center,
North Tunbridge, Ely, West Norwich and Union Village Dam Recreation
Area.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 4389 7217 4387 7217 4386 7219 4381 7218
4379 7220 4377 7220 4375 7222 4373 7227
4372 7242 4386 7240 4392 7254 4405 7249
4401 7230 4389 7216
TIME...MOT...LOC 0810Z 268DEG 33KT 4392 7251 4391 7237 4387 7229 4377
7227
HaynesSpecial weather statement, Jul 14, 4:21 AM EDT, 19 minutes before
Special Weather Statement National Weather Service Burlington VT 421 AM EDT Tue Jul 14 2020 VTZ007-008-010-140900- Caledonia-Washington-Orange- 421 AM EDT Tue Jul 14 2020 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN CALEDONIA...NORTHEASTERN ORANGE AND EAST CENTRAL WASHINGTON COUNTIES... At 421 AM EDT, radar indicated strong thunderstorms were located along a line extending from near Ricker State Park to near Topsham. Movement was southeast at 10 mph. Winds in excess of 30 mph are possible with these storms. Locations impacted include... Newbury, Topsham, Barnet, Groton Village, Ricker State Park, Peacham, Groton, Topsham Four Corners, Ryegate, Marshfield, Orange, Plainfield, Ryegate Corner, West Groton, Newbury Center, South Ryegate, Boltonville, West Barnet, East Topsham and South Peacham. Torrential rainfall is also occurring with these storms, and may cause localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 4433 7206 4406 7211 4414 7235 4434 7235 TIME...MOT...LOC 0821Z 311DEG 8KT 4429 7228 4416 7224 Haynes
The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 2:51 AM EDT | Special Weather Statement | BTV | Windsor | 54 min |
| Jul 14, 3:16 AM EDT | Special Weather Statement | BTV | Orange | 59 min |
| Jul 14, 3:30 AM EDT | Special Weather Statement | BTV | Orange | 45 min |
| Jul 14, 3:44 AM EDT | Special Weather Statement | BTV | Windsor | 46 min |
| Jul 14, 4:10 AM EDT | Special Weather Statement | BTV | Orange | 50 min |
| Jul 14, 4:21 AM EDT | Special Weather Statement | BTV | Orange | 39 min |
| Jul 14, 4:56 AM EDT | Special Weather Statement | BTV | Caledonia | 64 min |
| Jul 14, 5:44 AM EDT | Special Weather Statement | BTV | Orange | 46 min |
| Jul 14, 6:37 AM EDT | Flash Flood Warning | BTV | Orange | 6 hr |
| Jul 14, 7:12 AM EDT | Special Weather Statement | BTV | Caledonia | 48 min |
| Jul 14, 7:26 AM EDT | Flash Flood Warning | BTV | Caledonia, Washington | 6 hr |
| Jul 14, 9:02 AM EDT | Flash Flood Warning | BTV | Caledonia, Essex | 4 hr |
| Jul 14, 9:21 AM EDT | Flash Flood Warning | BTV | Caledonia, Orange | 3 hr |
| Jul 14, 2:21 PM EDT | Special Weather Statement | BTV | Orleans | 54 min |
| Jul 14, 12:32 PM EDT | Special Weather Statement | BTV | Essex | 28 min |
| Jul 14, 1:22 PM EDT | Special Weather Statement | BTV | Essex | 23 min |
Nearby
Severe Thunderstorm Warnings in Vermont, 2020Every severe thunderstorm warning in 2020
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.