A surface cold front and , cold upper low approached northern NY during the afternoon of August 24th. Scattered thunderstorms developed along the boundary with only one storm producing any severe reports of localized wind damage.
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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.
A surface cold front and , cold upper low approached northern NY during the afternoon of August 24th. Scattered thunderstorms developed along the boundary with only one storm producing any severe reports of localized wind damage.
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 24, 1:28 PM EST, 2 hours 50 minutes earlier.
Area Forecast Discussion National Weather Service Burlington VT 228 PM EDT Sun Aug 24 2025 .SYNOPSIS... Scattered showers will become more widespread this evening along a slow moving front, with localized strong thunderstorms possible, especially in the Adirondacks. Lingering shower and thunderstorm chances will be mainly in northeastern Vermont on Monday as cooler and drier air returns. Another cold front will swing through on Thursday with chances of showers but mainly reinforce a dry weather pattern. && .NEAR TERM /THROUGH MONDAY NIGHT/... As of 228 PM EDT Sunday...Isolated showers, some of which will briefly be capable of lightning, will trend organized through the early evening before weakening. The Storm Prediction Center maintains a marginal (1 out of 5) risk of an isolated severe thunderstorm within the Adirondack region from late this afternoon through early evening, with a chance of localized damaging wind and/or hail approaching 1" diameter. Convection Allowing Model (CAM) guidance has been a little underdone on convection across western/central New York early this afternoon, giving credence to the idea of possibly the more robust line of thunderstorms occurring with cells growing upscale/linear with time. Most of this activity may stay just south of the region, but that would be the best chance of both heavier rainfall and severe weather. Otherwise, broadly increasing diurnally-driven instability from the Adirondacks eastward into Vermont should support scattered showers and a chance of thunder late this afternoon into the evening before diminishing. Again, a lot of the higher PoPs are driven by the expected line of thunderstorms materializing in northern New York, so there is still some uncertainty. Generally the front that is approaching from the west is expected to be quasi-stationary/very slow moving such that forward progress of this line of showers may be limited. The precipitation forecast, relatedly, may trend a little lighter in central/eastern Vermont relative to the deterministic (specific amount) forecast as the picture of the convection becomes more clear. Locally gusty winds in the eastern Champlain Valley, which have been as high as the 30 to 35 MPH range, today will persist through around midnight, then sharply diminish as low level flow turns more westerly and weakens as the surface front moves into the vicinity. Less impactful weather is expected for tomorrow as there has become good consensus on limited instability in our region with the cold front sliding through Vermont during the morning hours. Hence, HREF- calibrated probabilities of thunder are mainly low, peaking at 40% in far northeastern Vermont, and limited to eastern portions of the state and largely noon to 2 PM. The main weather story will probably be a return to drier air as westerly flow picks up, so dew points will fall back into the "comfortable" category after a moderately humid period. Temperatures should be seasonably warm ranging from the mid 70s to low 80s in the valleys and upper 60s to low 70s in mid- slopes/higher elevation towns. The drier air mass, along with diminishing winds, will lead to a cooler, seasonable night as temperatures tomorrow night dip into the low 40s to low 50s for most spots. && .SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/... As of 159 PM EDT Sunday...The forecast for Tuesday has unfortunately trended drier as low level air will be dry with all of the upper level forcing either well north of the area or passing to our southwest. Have kept with the National Blend of Models for PoPs at this point, as diurnally driven pop up showers can't be ruled out, but any appreciable rainfall looks unlikely. Main focus for this period will be related to the dryness, as large scale pattern is favorable for deep mixing and sharply lowering dew points during the day. Relative humidity will probably drop into the 30-40% range, generally lowest in the western Champlain Valley given modest downsloping. Top of the mixed layer winds will tend to be strongest early in the day and stronger farther east in eastern New England, so magnitude of wind gusts don't look overly strong - expect mainly peaking near 25 MPH. High temperatures should be below normal with the cooler air mass settling in, ranging from the mid 60s to mid 70s. Similarly, lows Tuesday night will be chillier than the previous night, although not cold enough to have frost concerns even in notorious cold spot Lake Clear/Adirondack Regional Airport. && .LONG TERM /WEDNESDAY THROUGH SUNDAY/... As of 159 PM EDT Sunday...Upper level troughing and broad cyclonic flow will continue to produce increased cloud cover, northwesterly flow, and cooler conditions across the forecast area for the latter half of the week. Highs are likely to not reach above the upper 60s and 70s and lows could fall as low as the upper 30s and 40s. Most likely time for precipitation will be Thursday through Friday as a cold front looks to move through the region with chances 20-40% during this period. This cold front may also make Thursday somewhat breezy out of the west/southwest. Following the cold front, ridging and high pressure are anticipated with temperatures remaining slightly below seasonal averages. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... Through 18Z Monday...Several rounds of showers and thunderstorms are expected this afternoon through tomorrow as a frontal boundary crosses the region. Winds will remain gusty 15-30 knots from the south through about 22Z Sunday - 00Z Monday, then begin to decrease below 10 knots, continuing out of the south/southwest except at RUT where the southeasterly drainage wind should prevail. While conditions should remain primarily VFR over the next 12 hours, brief reductions in visibility are anticipated as showers and thunderstorms pass over terminals. Stronger showers and thunderstorms may even produce gusty winds. After 06Z Monday, ceilings will gradually lower as surface moisture increases, mostly to MVFR levels, though some models are suggesting that IFR vis and cig could develop at SLK and MPV around 08Z-14Z Monday as winds decrease. Confidence is low for this solution at the moment, but it is something we'll continue to monitor into the evening. Outlook... Monday Night: VFR. NO SIG WX. Tuesday: VFR. Slight chance SHRA. Tuesday Night: VFR. NO SIG WX. Wednesday: VFR. NO SIG WX. Wednesday Night: VFR. NO SIG WX. Thursday: VFR. Chance SHRA, Slight chance TSRA. Thursday Night: VFR. Chance SHRA. Friday: VFR. Chance SHRA. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && SYNOPSIS...Kutikoff NEAR TERM...Kutikoff SHORT TERM...Kutikoff LONG TERM...Storm AVIATION...Storm
Hazardous Weather Outlook National Weather Service Burlington VT 142 AM EDT Sun Aug 24 2025 NYZ026>031-034-035-087-VTZ001>011-016>021-250545- 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- 142 AM EDT Sun Aug 24 2025 This Hazardous Weather Outlook is for northern New York, central Vermont, northeast Vermont, northwest Vermont and southern Vermont. .DAY ONE...Today and tonight. Wind gusts of 30 to 35 mph in the Champlain Valley will slowly abate after sunrise. Marginally conducive conditions for producing strong thunderstorms will be present across northern New York this afternoon. A few stronger showers or thunderstorms could produce briefly gusty winds. Locally heavy rain will be possible in thunderstorm activity today and Monday, but are expected to be largely beneficial. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Burlington VT
247 PM EDT Sun Aug 24 2025
NYZ029-030-241930-
Southeastern St. Lawrence NY-Southern Franklin NY-
247 PM EDT Sun Aug 24 2025
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN FRANKLIN AND
SOUTHEASTERN ST. LAWRENCE COUNTIES THROUGH 330 PM EDT...
At 247 PM EDT, Doppler radar was tracking a strong thunderstorm over
Clifton, moving northeast at 30 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...
Tupper Lake Village, Clifton, Colton, Tupper Lake, Piercefield, Fine,
Hopkinton, Clare, Parishville, Carry Falls Reservoir, Conifer,
Wanakena, Gale, Cranberry Lake, Newton Falls, Childwold, Star Lake,
and Shurtleff.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4410 7499 4422 7508 4449 7469 4423 7440
TIME...MOT...LOC 1847Z 242DEG 24KT 4420 7494
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
StormSpecial Weather Statement
National Weather Service Burlington VT
507 PM EDT Sun Aug 24 2025
NYZ026-027-029-030-087-242145-
Northern St. Lawrence NY-Northern Franklin NY-
Southeastern St. Lawrence NY-Southern Franklin NY-
Southwestern St. Lawrence NY-
507 PM EDT Sun Aug 24 2025
...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL FRANKLIN AND
NORTHEASTERN ST. LAWRENCE COUNTIES THROUGH 545 PM EDT...
At 507 PM EDT, Doppler radar was tracking a strong thunderstorm over
Pierrepont, moving northeast 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...
Potsdam Village, Brasher, Pierrepont, Parishville, Lawrence,
Stockholm, Dickinson, Potsdam, Moira, Norfolk, Canton, Hopkinton,
Clare, Russell, Colton, North Stockholm, West Parishville, Brasher
Center, West Stockholm, and Nicholville.
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 4443 7493 4453 7514 4492 7482 4477 7451
TIME...MOT...LOC 2107Z 215DEG 22KT 4454 7498
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
HastingsThe Ft Drum radar (KTYX), 112 km away, was scanning. The volume nearest the first event began at 21:19 UTC.
2 thunderstorm wind. Local standard time, as filed.
Several reports of trees, branches down on utility lines in the Hannawa Falls-West Parishville area.
Tree and powerlines down across Highway 11B.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2025Every state in 2025This day in weather historyWarnings in New York, August 2025
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: 1280786, 1280787.