Scattered thunderstorms produced locally heavy rainfall of 1 to 3 inches, which led to a few reports of flash flooding, most notably in the East Burke area where roads damaged in the prior July 2024 flash floods were once again compromised.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS BTV wrote it up.
Scattered thunderstorms produced locally heavy rainfall of 1 to 3 inches, which led to a few reports of flash flooding, most notably in the East Burke area where roads damaged in the prior July 2024 flash floods were once again compromised.
The local office's own words before the first event, 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 the first event at Aug 4, 2:45 PM EST, 15 minutes earlier.
Area Forecast Discussion National Weather Service Burlington VT 345 PM EDT Sun Aug 4 2024 .SYNOPSIS... Unsettled weather will continue through Monday as a series of disturbances shift southeast through Vermont and northern New York. A few storms could be strong and capable of producing gusty winds and heavy rain. The cold front will sag south late Monday bringing cooler and drier air across the region. The frontal boundary will stall to our south, and a few showers may cross the boundary in parts of the Adirondacks and southern Vermont periodically. && .NEAR TERM /THROUGH MONDAY NIGHT/... As of 330 PM EDT Sunday...Showers and thunderstorms are ongoing across the region this afternoon, some with strong gusty winds and most of them with heavy rain as the storm motion is pretty slow. Convection will dissipate following sunset this evening, and it should be a somewhat cooler night with mainly 60s across the region. Patchy fog is likely to develop again, especially at locations that had heavy rain today and in the typically fog prone spots. Monday will be another active day as a cold front will drop southward across our area. Showers and storms will start early in the day Monday in Northern New York, then spread southeastward as the day wears on. High temperatures across northern New York will only reach the mid 70s as the cold front drops through that area early in the day. Areas across central and southern Vermont will still reach the mid to upper 80s as they'll be last to have the cold frontal passage. Rutland, Windsor, Orange and southern Addison counties in Vermont will be most susceptible to severe thunderstorms on Monday. SPC has issued a slight risk for this area. This area will have the cold front crossing at a better time of day, along with better upper level support. The main threat with these storms will be gusty winds with good shear in place. There will also continue to be a risk for heavy rain in showers and thunderstorms across the area. Showers will die down following sunset Monday evening, and patchy fog will be expected once again where there was heavy rain and also in the typically fog prone spots. Minimum temperatures will drop into the mid 50s to lower 60s across the area with a cooler drier air mass in place behind departing cold front. This will come as welcome relief after many warm humid nights over the past week. && .SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/... As of 323 PM EDT Sunday...Sharply cooler and drier conditions remain in the forecast for Tuesday. Morning temperatures in the 50s and 60s will rise into the low to mid 70s as dew points remain in the comfortable range, probably in the low to mid 50s on average. That being said, we still carry rain chances for the afternoon and evening hours, mainly in southern portions of Vermont. A wave of low pressure passing along a frontal zone to our south will almost certainly spread clouds into our region, with greater chances for deeper clouds and measurable rain as you go southward. There is a pretty large range in outcomes for sky cover with spread across our region, especially in the western Adirondacks and northern Champlain Valley Tuesday afternoon when skies may be sunny or partly to mostly cloudy, and the thickness of clouds through the nighttime. What is more certain is rainfall amounts, even if it does rain later Tuesday into Tuesday night, will be on the light side with no instability and weak frontal lift. && .LONG TERM /WEDNESDAY THROUGH SUNDAY/... As of 340 PM EDT Sunday...Wednesday looks like the pick of the week with best chance of sunny skies and dry weather. Highs will be in the mid and upper 70s with dew points remaining most likely in the low and mid 50s. Conditions will be similarly pleasant on Thursday, however humidity will begin to rise along with cloud cover. The Friday and Saturday timeframe is currently the most uncertain part of the forecast. There will likely be tropical moisture moving northward associated with the remnants of Debby, which will interact with a frontal boundary. Where these features come together, very heavy and widespread rain will occur. In terms of potential for rainfall in Vermont and northern New York, the wetter scenarios would see the greatest rain amounts in the Friday afternoon through Saturday afternoon. Total rainfall at the 90th percentile adds up to 2 to 3 inches on average, excluding the St. Lawrence Valley where even the 90th percentile rainfall is only 1-1.5 inches. The same 24 hours shows only about a 50% chance of measurable rainfall, trending a bit higher as one goes southeastward, suggesting the unusually large range in possibilities. One could translate these numbers to say: it may not rain, but if it does, significant rainfall is possible. That idea is consistent with the long range ensemble river forecasts for a few points, including on the Ausable, Lamoille, and Winooski Rivers, which show a large and sharp rise on Saturday, cresting above flood stage in about 10% of this morning's model simulations in the GEFS. Rain may linger into Sunday, but following this potential tropical weather, all indications at this time show winds will turn westerly/northwesterly with drier conditions returning. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... Through 18Z Monday...Generally southwest winds, and some terrain-driven flow, around 4 to 7 knots continues. Showers and storms have developed, and will continue through about 02z. Have VCSH and TEMPO groups with TS at most sites. Beyond 02z, winds should become light and variable again with patchy fog possible across the climatological favored locations, especially at terminals which have had heavy rain today After 10z Monday, showers from a frontal boundary will approach KMSS and spread eastward during the daytime hours. Outlook... Monday Night: VFR. Chance SHRA. Tuesday: VFR. Slight chance SHRA. Tuesday Night: VFR. Slight chance SHRA. Wednesday: VFR. NO SIG WX. Wednesday Night: VFR. Slight chance SHRA. Thursday: VFR. Slight chance SHRA. Thursday Night: VFR. Chance SHRA. Friday: Mainly VFR, with local MVFR possible. Chance SHRA. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && SYNOPSIS...Neiles NEAR TERM...Neiles SHORT TERM...Kutikoff LONG TERM...Kutikoff AVIATION...Neiles
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.
Special Weather Statement
National Weather Service Burlington VT
158 PM EDT Sun Aug 4 2024
VTZ004-041900-
Essex VT-
158 PM EDT Sun Aug 4 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ESSEX COUNTY
THROUGH 300 PM EDT...
At 157 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lemington. This thunderstorm was nearly stationary.
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...
Canaan, Bloomfield, Lewis, Lemington, Averill, Ferdinand, Brunswick,
and Beecher Falls.
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 4500 7149 4500 7154 4498 7154 4496 7151
4493 7152 4491 7149 4486 7155 4484 7155
4482 7157 4479 7157 4474 7173 4487 7180
4501 7156 4501 7148
TIME...MOT...LOC 1757Z 252DEG 4KT 4490 7158
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
ClayPreliminary Local Storm Report
National Weather Service Burlington VT
231 PM EDT Sun Aug 04 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0145 PM Hail 1 S Plattsburgh 44.68N 73.46W
08/04/2024 M0.75 inch Clinton NY Emergency Mngr
1.21 inches of rainfall in 25 minutes.
&&
Event Number BTV2402850
taberPreliminary Local Storm Report
National Weather Service Burlington VT
236 PM EDT Sun Aug 04 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0206 PM Tstm Wnd Dmg 2 S Valcour 44.57N 73.44W
08/04/2024 Clinton NY Emergency Mngr
Trees and wires down at Ausable Point Campground/Wharf
Way.
&&
Event Number BTV2402851
taberSpecial Weather Statement
National Weather Service Burlington VT
310 PM EDT Sun Aug 4 2024
NYZ034-035-VTZ005-009-017-018-042015-
Western Essex NY-Eastern Essex NY-Eastern Chittenden VT-
Western Chittenden VT-Western Addison VT-Eastern Addison VT-
310 PM EDT Sun Aug 4 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ESSEX...NORTH
CENTRAL ADDISON AND SOUTHWESTERN CHITTENDEN COUNTIES THROUGH 415 PM
EDT...
At 310 PM EDT, Doppler radar was tracking a strong thunderstorm near
Willsboro, moving east at 20 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 Junction, South Burlington, Burlington International Airport,
Burlington, Essex, Willsboro, Charlotte, Essex Junction Village,
Williston, Mt. Philo State Park, Hinesburg, St. George, Shelburne,
Richmond, Starksboro, Monkton, Jericho, Huntington, Mcneil Cove, and
Sloop Island.
This includes the following highways...
Interstate 87 between mile markers 125 and 135.
Interstate 89 between mile markers 79 and 89.
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 4430 7355 4445 7353 4450 7302 4425 7302
TIME...MOT...LOC 1910Z 268DEG 19KT 4439 7344
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
ClaySpecial Weather Statement
National Weather Service Burlington VT
314 PM EDT Sun Aug 4 2024
NYZ028-035-VTZ001-005-017-042015-
Eastern Clinton NY-Eastern Essex NY-Grand Isle VT-
Eastern Chittenden VT-Western Chittenden VT-
314 PM EDT Sun Aug 4 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN CLINTON...
NORTHEASTERN ESSEX...SOUTHWESTERN GRAND ISLE AND NORTHWESTERN
CHITTENDEN COUNTIES THROUGH 415 PM EDT...
At 314 PM EDT, Doppler radar was tracking a strong thunderstorm over
Port Kent, moving east at 10 mph.
HAZARD...Wind gusts up to 40 mph and half inch 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 Junction, Burlington, South Burlington, Winooski, Colchester,
Essex Junction Village, South Hero, Port Kent, Essex, Keeseville,
Milton, Westford, Mallets Bay State Park, Stave Island, Sunset
Island, Sand Bar State Park, West Milton, Malletts Bay, Jackson
Point, and Marble Island.
This includes the following highways...
Interstate 87 between mile markers 136 and 138.
Interstate 89 between mile markers 90 and 102.
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.
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.
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 4446 7351 4464 7342 4465 7304 4448 7302
4448 7318
TIME...MOT...LOC 1914Z 270DEG 11KT 4449 7340
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
ClaySpecial Weather Statement
National Weather Service Burlington VT
326 PM EDT Sun Aug 4 2024
NYZ026-027-042030-
Northern St. Lawrence NY-Northern Franklin NY-
326 PM EDT Sun Aug 4 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN FRANKLIN AND
NORTHEASTERN ST. LAWRENCE COUNTIES THROUGH 430 PM EDT...
At 326 PM EDT, Doppler radar was tracking a strong thunderstorm near
Massena International Airport - Richards Field, moving east at 25
mph.
HAZARD...Wind gusts up to 40 mph and half inch 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...
Massena, Bangor, Fort Covington, Bombay, St. Regis, Massena
International Airport - Richards Field, Helena, Brushton, Constable,
Eisenhower Lock, Fort Covington Center, South Bombay, Hogansburg,
Westville Center, St. Lawrence State Park, Ironton, Rooseveltown,
Raquette River, and North Bangor.
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.
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.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4499 7474 4501 7467 4499 7423 4480 7440
4495 7500 4497 7497 4496 7497 4495 7495
4496 7492 4497 7496 4499 7489 4497 7493
4497 7488 4499 7487 4500 7489 4501 7483
TIME...MOT...LOC 1926Z 279DEG 23KT 4499 7488
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
ClayThe Burlington radar (KCXX), 94 km away, was scanning. The volume nearest the first event began at 19:59 UTC.
2 flash flood. Local standard time, as filed.
Fire Dept. reported a few roads damaged during the July 2024 floods were damaged/compromised by new flash flooding in the E. Burke area.
Town of St. Johnsbury reported several roads that were damaged during the July 2024 floods were damaged/compromised again. These included Mt. Pisgah Rd., Bible Hill Rd. and New Boston Rd.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Vermont in 2024Every state in 2024This day in weather historyWarnings in Vermont, August 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1202747, 1202873.