Alert archive / Vermont / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 64, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at Aug 4, 2024, 1:22 PM EDT for Chittenden County, Franklin County, Grand Isle County, Vermont; Clinton County, New York. It was in force for 38 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
- Aug 4, 2024, 1:22 PM EDT (17:22 UTC)
- Expired
- Aug 4, 2024, 2:00 PM EDT
- In force
- 38 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clinton County, NY, Chittenden County, VT, Franklin County, VT, Grand Isle County, VT
The radar
The Burlington radar (KCXX), 23 km from the middle of the area, began a volume at 17:22 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, 5.4 hours before the alert went out and 230 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
- 707 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Aug 4, 10:28 AM EDT, 2 hours 54 minutes earlier.
Area forecast discussion, Aug 4, 10:28 AM EDT, 2 hours 54 minutes before
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</html>Hazardous weather outlook, Aug 4, 3:14 AM EDT, 10 hours 8 minutes before
Hazardous Weather Outlook National Weather Service Burlington VT 314 AM EDT Sun Aug 4 2024 NYZ026>031-087-VTZ001>008-016-017-050715- Northern St. Lawrence-Northern Franklin-Eastern Clinton- Southeastern St. Lawrence-Southern Franklin-Western Clinton- Southwestern St. Lawrence-Grand Isle-Western Franklin-Orleans-Essex- Western Chittenden-Lamoille-Caledonia-Washington-Eastern Franklin- Eastern Chittenden- 314 AM EDT Sun Aug 4 2024 This Hazardous Weather Outlook is for northern New York, central Vermont, northeast Vermont and northwest Vermont. .DAY ONE...Today and tonight. Scattered showers and thunderstorms are possible today. A few could be strong to locally severe and capable of producing gusty winds and heavy rain. .DAYS TWO THROUGH SEVEN...Monday through Saturday. A cold front will shift southeast during the day Monday. A few storms may be capable of producing gusty winds and heavy rain. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NYZ034-035-VTZ009>011-018>021-050715- Western Essex-Eastern Essex-Western Addison-Orange-Western Rutland- Eastern Addison-Eastern Rutland-Western Windsor-Eastern Windsor- 314 AM EDT Sun Aug 4 2024 This Hazardous Weather Outlook is for northern New York, central Vermont and southern Vermont. .DAY ONE...Today and tonight. Scattered showers and thunderstorms are possible today. A few could be strong to locally severe and capable of producing gusty winds and heavy rain. .DAYS TWO THROUGH SEVEN...Monday through Saturday. A cold front will shift southeast during the day Monday. A Slight Risk Outlook (Level 2 of 5) is in place across southern Vermont, with isolated storms capable of gusty to damaging winds and very heavy rainfall. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 4, 12:15 PM EDT, 1 hour 7 minutes before
Special Weather Statement
National Weather Service Burlington VT
1215 PM EDT Sun Aug 4 2024
NYZ034-035-VTZ009-041645-
Western Essex NY-Eastern Essex NY-Western Addison VT-
1215 PM EDT Sun Aug 4 2024
...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL ESSEX AND
NORTHWESTERN ADDISON COUNTIES THROUGH 1245 PM EDT...
At 1214 PM EDT, Doppler radar was tracking a strong thunderstorm near
Keene Valley, moving east at 15 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Essex, Westport, Elizabethtown, Keene Valley, Panton, Addison,
Ferrisburgh, Lewis, Fort Cassin Point, Owls Head Bay, North West Bay,
Mud Island, Porter Bay, Potash Bay, Louis Clearing Bay, Fields Bay,
Moriah Center, New Russia, South Bay In Essex County, and Split Rock
Point.
This includes Interstate 87 between mile markers 101 and 123.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
If on or near Lake Champlain, get out of the water and move indoors
or inside a vehicle. Remember, lightning can strike out to 10 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.
&&
LAT...LON 4408 7325 4403 7376 4421 7382 4434 7334
TIME...MOT...LOC 1614Z 255DEG 12KT 4414 7369
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
KremerSpecial weather statement, Aug 4, 1:12 PM EDT, 10 minutes before
Special Weather Statement
National Weather Service Burlington VT
112 PM EDT Sun Aug 4 2024
VTZ003-004-041800-
Essex VT-Orleans VT-
112 PM EDT Sun Aug 4 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ORLEANS AND
NORTHWESTERN ESSEX COUNTIES THROUGH 200 PM EDT...
At 111 PM EDT, Doppler radar was tracking a strong thunderstorm near
Derby Center, moving east at 15 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Island Pond, Derby Center, Charleston, Derby, Norton, Morgan, Warren
Gore, Warners Grant, Averys Gore, Brownington, Derby Center Village,
Holland, Brighton, Lewis, Westmore, East Brownington, West
Charleston, Morgan Center, and East Charleston.
This includes Interstate 91 between mile markers 171 and 176.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4482 7175 4479 7212 4497 7218 4501 7205
4501 7179
TIME...MOT...LOC 1711Z 264DEG 13KT 4490 7207
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
KremerThe office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:57 PM EDT | Special Weather Statement | BTV | Chittenden | 63 min |
| Aug 4, 1:12 PM EDT | Special Weather Statement | BTV | Orleans | 48 min |
| Aug 4, 1:24 PM EDT | Special Weather Statement | BTV | Addison | 51 min |
| Aug 4, 1:27 PM EDT | Areal Flood Warning | BTV | Essex | 2 hr |
| Aug 4, 1:57 PM EDT | Special Weather Statement | BTV | Grand Isle | 48 min |
| Aug 4, 1:58 PM EDT | Special Weather Statement | BTV | Essex | 62 min |
| Aug 4, 2:02 PM EDT | Severe Thunderstorm Warning | BTV | Chittenden, Franklin, Grand Isle | 44 min |
| Aug 4, 2:18 PM EDT | Flash Flood Warning | BTV | Essex | 3 hr |
| Aug 4, 2:37 PM EDT | Flash Flood Warning | BTV | Caledonia, Essex, Orleans | 3 hr |
| Aug 4, 3:10 PM EDT | Special Weather Statement | BTV | Chittenden | 65 min |
| Aug 4, 3:14 PM EDT | Special Weather Statement | BTV | Chittenden | 61 min |
| Aug 4, 4:58 PM EDT | Special Weather Statement | BTV | Addison | 47 min |
| Aug 4, 4:59 PM EDT | Special Weather Statement | BTV | Addison | 46 min |
| Aug 4, 5:05 PM EDT | Severe Thunderstorm Warning | BTV | Addison | 40 min |
| Aug 4, 5:09 PM EDT | Severe Thunderstorm Warning | BTV | Addison, Rutland | 66 min |
| Aug 4, 5:25 PM EDT | Special Weather Statement | BTV | Chittenden | 50 min |
| Aug 4, 5:40 PM EDT | Severe Thunderstorm Warning | BTV | Addison, Rutland, Washington, Windsor | 45 min |
| Aug 4, 5:45 PM EDT | Areal Flood Warning | BTV | Addison, Chittenden | 2 hr |
| Aug 4, 6:08 PM EDT | Special Weather Statement | BTV | Lamoille | 67 min |
| Aug 4, 6:11 PM EDT | Areal Flood Warning | BTV | Chittenden | 101 min |
| Aug 4, 6:12 PM EDT | Severe Thunderstorm Warning | BTV | Addison, Rutland | 48 min |
| Aug 4, 6:24 PM EDT | Special Weather Statement | BTV | Windsor | 36 min |
| Aug 4, 6:38 PM EDT | Special Weather Statement | BTV | Rutland, Windsor | 67 min |
| Aug 4, 6:45 PM EDT | Areal Flood Warning | BTV | Caledonia, Essex, Orange, Orleans | 3 hr |
| Aug 4, 6:59 PM EDT | Severe Thunderstorm Warning | BTV | Rutland, Windsor | 61 min |
| Aug 4, 7:02 PM EDT | Areal Flood Warning | BTV | Rutland | 97 min |
| Aug 4, 7:04 PM EDT | Special Weather Statement | BTV | Orange | 26 min |
| Aug 4, 12:15 PM EDT | Special Weather Statement | BTV | Essex | 30 min |
| Aug 4, 1:02 PM EDT | Areal Flood Warning | BTV | Essex | 118 min |
| Aug 4, 2:06 PM EDT | Areal Flood Warning | BTV | Clinton | 3 hr |
| Aug 4, 3:26 PM EDT | Special Weather Statement | BTV | Franklin | 64 min |
| Aug 4, 4:16 PM EDT | Special Weather Statement | BTV | Franklin | 44 min |
| Aug 4, 4:30 PM EDT | Special Weather Statement | BTV | Clinton | 45 min |
Nearby
Severe Thunderstorm Warnings in Vermont, 2024Severe Thunderstorm Warnings in New York, 2024Every severe thunderstorm warning in 2024
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.