An mid atmospheric and surface trough moved across a moderately unstable air mass across south central and eastern New York during the afternoon of August 30th. This triggered numerous showers and a few thunderstorms with one thunderstorm complex becoming severe across the northern Hudson Valley and then moved north-northeast across the southern Champlain Valley of NY and eventually across the…
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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.
An mid atmospheric and surface trough moved across a moderately unstable air mass across south central and eastern New York during the afternoon of August 30th. This triggered numerous showers and a few thunderstorms with one thunderstorm complex becoming severe across the northern Hudson Valley and then moved north-northeast across the southern Champlain Valley of NY and eventually across the Champlain Valley of VT.
Several downbursts occurred across this path near and along the lakeshore of Lake Champlain in the towns of Burlington, Colchester, Milton and Saint Albans with some tree and utility line damage as well as some minor structural damage due to fallen trees.
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 30, 2:30 PM EST, 58 minutes earlier.
Area Forecast Discussion National Weather Service Burlington VT 330 PM EDT Tue Aug 30 2022 .SYNOPSIS... Showers and thunderstorms with locally heavy rain will be on the increase this evening into the overnight hours as a cold front slowly moves east over the North Country. Cooler weather with lingering showers will be possible for the middle of the week. Turning the corner into September, we begin meteorological fall with cool temperatures and dry weather. On Sunday, a reinforcing cold front will help keep temperatures on the cool side. && .NEAR TERM /THROUGH WEDNESDAY NIGHT/... As of 328 PM EDT Tuesday...It's warm and muggy over Vermont; clouds are keeping northern New York cooler. To the west is a cold front with minimal thunder, but moderate rain, and to the south are clusters of storm with a few producing frequent lightning. This cluster of storms will lift northwards and merge with the front moving east. The main weather hazards from the cluster of storms will be wet microbursts, heavy rain, and frequent lightning. As it merges with the front, it could result in a couple rounds of moderate to heavy rain that will likely cause ponding in urban and poor drainage areas. Expect pockets of standing water in the common trouble spots. There's a slight potential if storms train that localized flooding could take place, and we'll keep an eye on that. Rainfall amounts of about a third to three quarters is expected, with a few strips of 1.00 to 1.50 inches likely. Based on the temperature trends, it's looking a bit less likely that we will stay warm enough to be record high minimum temperatures. It will be close at BTV, but that's it. Temperatures will likely bottom out in the upper 50s to mid 60s by early Wednesday morning. Most precipitation from the frontal boundary will shift east by morning. We still have a bit of moisture in the vicinity. So it won't feel totally comfortable just yet. As such, anticipate that diurnal destabilization will allow a few showers and thunderstorms during the day on Wednesday with a final push overnight. In terms of temperature, it will be much cooler with highs in the 70s. The upper trough axis will begin to shift east Wednesday night, and this will finally bring in some dry air on top of the cooler conditions with temperatures falling into the mid 40s to mid 50s. && .SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/... As of 328 PM EDT Tuesday...A chilly start to meteorological fall is expected on Thursday as cold air advection from the northwest associated with a secondary cold front moves across the North Country. A few gusty breezes are expected as well throughout the day. Temperatures of 1-5C are expected at the 850mb level on Thursday morning along the international boundary, pushing surface temperatures 5-10 degrees below average with forecast highs in the 60s across the area. Drier air will also move in behind the front, greatly reducing chances for showers and shrinking dew points. PoPs will be highest in the Northeast Kingdom at around 10-20% in the morning as the last of the showers move out. Otherwise, some fair weather cumulus is anticipated to develop. Overnight, high pressure will settle overtop the forecast area, allowing for a mainly clear, chilly night with highs in the 40s for most and a few around 50 close to Lake Champlain, again 5-10 degrees below normal. These conditions are looking favorable for fog development, as winds will be light and variable in addition to radiational cooling conditions. && .LONG TERM /FRIDAY THROUGH TUESDAY/... As of 328 PM EDT Tuesday...Going into the weekend, dry and pleasant weather is forecast overall with the high pressure and ridging. Temperatures will begin to rebound into the mid- to upper 70s on Friday, around average, and lower 80s, above average once again. Skies will be fairly clear, with a few high clouds moving in by Saturday. PoPs are expected to stay near zero until Saturday night, when a cold front flows through the region into Sunday. PoPs of around 20-30% are in the forecast for northern New York on Saturday night, with these chances shifting eastward toward Vermont throughout the day Sunday, until we have 30-40% for much of the state Sunday afternoon. This precipitation will be mainly scattered showers with minimal moisture associated with the front. Highs Sunday will be coolest in New York where rain could continue, while higher in southern Vermont where it will take longer for precip to arrive. Early next week, temperatures a bit below average are the main weather of interest with highs in the lower 70s for most. The North Country is expected to stay mostly dry with upper level ridging. && .AVIATION /20Z TUESDAY THROUGH SUNDAY/... Through 18Z Wednesday...The region is currently VFR with south to southwest winds around 10 knots and a few gusts 16 to 21 knots. From the south a cluster of thunderstorms should lift north between 20Z and 00Z Wednesday. From the west a cold front will shift east towards KMSS about 21Z and the two features should merge together. East of KMSS, showers and thunderstorms will be likely, then forming into a line of thunderstorms about 22-23Z at KSLK that shifts east towards KBTV about 00Z-01Z, and then KRUT, KEFK, and KMPV about 01Z-03Z. Anticipate gusty winds around 20 to 30 knots with this feature, and for a period of heavy rain that could bring visibilities down to 1 to 3 SM. Behind the line, two to three more hours of moderate to locally heavy rain could continue to reduce visibilities while ceilings fall towards 1500-2500 ft agl immediately behind the rain. Winds decrease behind the front, remaining southwesterly about 5 knots. By 07Z, most activity should shift east of Vermont, with a gradual trend back to VFR conditions. Southwest winds increase to 7 to 10 knots in the afternoon, with scattered showers developing after 16Z Wednesday. Outlook... Wednesday Night: VFR. Slight chance SHRA. Thursday: VFR. NO SIG WX. Thursday Night: VFR. NO SIG WX. Friday: VFR. NO SIG WX. Friday Night: VFR. NO SIG WX. Saturday: VFR. NO SIG WX. Saturday Night: Mainly VFR, with local MVFR possible. Chance SHRA. Sunday: Mainly MVFR, with local IFR possible. Slight chance SHRA. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && SYNOPSIS...Haynes NEAR TERM...Haynes SHORT TERM...Storm LONG TERM...Storm AVIATION...Haynes
Hazardous Weather Outlook National Weather Service Burlington VT 414 AM EDT Tue Aug 30 2022 NYZ026>031-034-035-087-VTZ001>011-016>021-310815- 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-Eastern Franklin- Eastern Chittenden-Eastern Addison-Eastern Rutland-Western Windsor- Eastern Windsor- 414 AM EDT Tue Aug 30 2022 This Hazardous Weather Outlook is for northern New York, central Vermont, northeast Vermont, northwest Vermont and southern Vermont. .DAY ONE...Today and tonight. A strong and slow front will cross the area, bringing thunderstorms and rain to the area. Some thunderstorms and rain showers may be contain heavy rainfall. An axis of higher amounts approaching 1.25 to 1.5 inches will be possible from the Adirondacks of New York and over portions of northern Vermont and the Champlain Valley. Ahead of the cold front, temperatures will remain warm across much of Vermont. By Tuesday afternoon, sections of the Champlain Valley, may observe localized, brief heat indices in the mid 90s. Any showers or storms that may develop ahead of the front could help mitigate the heat. Stay hydrated and take frequent breaks when doing strenuous outdoor activities. .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.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
1153 AM EDT TUE AUG 30 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0824 PM TSTM WND DMG MASSENA 44.93N 74.89W
08/29/2022 ST. LAWRENCE NY PUBLIC
SOCIAL MEDIA PICTURES OF LARGE LIMBS AND TREES DOWN IN
MASSENA. TIME ESTIMATED FROM RADAR.
&&
EVENT NUMBER BTV2201837
CLAYSpecial Weather Statement
National Weather Service Burlington VT
352 PM EDT Tue Aug 30 2022
NYZ034-035-VTZ009-302015-
Western Essex NY-Eastern Essex NY-Western Addison VT-
352 PM EDT Tue Aug 30 2022
...A strong thunderstorm will impact portions of southeastern Essex
and west central Addison Counties through 415 PM EDT...
At 350 PM EDT, Doppler radar was tracking a strong thunderstorm near
Crown Point Center, moving northeast at 30 mph.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Moriah, Crown Point, Port Henry, Addison, D A R State Park, Crown
Point Center, Bridport, Waltham, Weybridge, New Haven, Shoreham, Owls
Head Bay, Grass Island, Plumies Point, Gilligans Bay, Giards Bay,
Lapham Bay, Potash Bay, Leonard Bay and Mineville.
This includes Interstate 87 between mile markers 105 and 107.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 4411 7365 4411 7320 4380 7351 4378 7374
TIME...MOT...LOC 1950Z 207DEG 27KT 4389 7356
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
HammondPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
427 PM EDT TUE AUG 30 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0412 PM TSTM WND DMG MORIAH 44.05N 73.50W
08/30/2022 ESSEX NY PUBLIC
MANY TREES DOWN AND VERY HIGH WINDS REPORTED
&&
EVENT NUMBER BTV2201838
JMSThe Burlington radar (KCXX), 109 km away, was scanning. The volume nearest the first event began at 20:27 UTC.
6 thunderstorm wind. Local standard time, as filed.
Downburst produced scattered areas of downed trees and utility lines bewteen Ira and Clarendon Springs.
Several trees downed by thunderstorms winds in the New North End section of Burlington, including Ethan Allen Park.
A few reports of trees downed by thunderstorm winds in the Airport park, Thayer Beach, Prim road section of Colchester.
Scattered few trees downed by thunderstorm winds in Milton, especially west of Interstate 89.
A few trees dmaged by thunderstorm winds, including one snapped in half.
A tree downed and other minor damage at park due to thunderstorm winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Vermont in 2022Every state in 2022This day in weather historyWarnings in Vermont, August 2022
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: 1050478, 1050479, 1050480, 1050481, 1050482, 1050483.