A weak surface low traveled along a frontal boundary draped across northern New York and Vermont on July 19th. Limited sunshine in a moist and unstable air mass south of the frontal boundary allowed for scattered thunderstorms to develop in during the late afternoon with the passage of a weak trailing cold front.
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.
A weak surface low traveled along a frontal boundary draped across northern New York and Vermont on July 19th. Limited sunshine in a moist and unstable air mass south of the frontal boundary allowed for scattered thunderstorms to develop in during the late afternoon with the passage of a weak trailing cold front. A few of these thunderstorms produced hail up to one inch in diameter as well as some isolated wind damage in south central Vermont.
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 Jul 19, 2:07 PM EST, 1 hour 53 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BURLINGTON VT 307 PM EDT MON JUL 19 2010 .SYNOPSIS... LOW PRESSURE AND ASSOCIATED COLD FRONT PROVIDING THE AREA WITH SHOWERS AND THUNDERSTORMS THIS AFTERNOON...WILL MOVE EAST OUT OF THE REGION TONIGHT...ALLOWING HIGH PRESSURE TO BUILD IN. CLEARING SKIES TONIGHT WILL LEAD TO GENERALLY SUNNY AND DRY CONDITIONS ON TUESDAY...WITH ONLY A SLIGHT CHANCE OF A SHOWER OR THUNDERSTORM ACROSS THE HIGHER TERRAIN. THE THREAT FOR SHOWERS AND THUNDERSTORMS INCREASES AGAIN TUESDAY NIGHT INTO WEDNESDAY AS AN UPPER DISTURBANCE TRACKS EAST ALONG THE INTERNATIONAL BORDER. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... AS OF 306 PM EDT MONDAY...LOW PRESSURE CENTERED OVER THE FORECAST AREA AND ITS ASSOCIATED COLD FRONT WILL CONTINUE TO TRACK EAST THIS EVENING. SCATTERED CONVECTIVE SHOWERS WITH A FEW THUNDERSTORMS WILL CONTINUE ALONG AND AHEAD OF THE FRONT THOUGH NOT EXPECTED ANY STORMS TO BECOME SEVERE AS THE ATMOSPHERE IS GENERALLY PRETTY STABLE ACROSS NORTHERN NEW YORK AND NORTHERN VERMONT DUE TO EXTENSIVE CLOUDS COVER OVER THE REGION. THERE IS AN OUTSIDE CHANCE OF STRONGER STORMS ACROSS SOUTHERN VERMONT WHERE SKIES ARE A BIT MORE BROKEN AND WHERE LESS RAIN FELL THIS MORNING...BUT THIS THREAT WILL DIMINISH THIS EVENING AS WELL AS DAYTIME HEATING COMES TO AN END. EXPECT MOST AREAS OVERNIGHT TO EXPERIENCE SOME FOG AS SKIES GRADUALLY CLEAR AND WINDS BECOME LIGHT AND HIGH PRESSURE BEGINS TO NOSE INTO THE REGION. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/... AS OF 306 PM EDT MONDAY...ON TUESDAY THE NORTH COUNTRY WILL BE UNDER THE INFLUENCE OF A WEAK AREA OF SURFACE HIGH PRESSURE. ALOFT THE FLOW REMAINS ZONAL FROM THE WEST/NORTHWEST AND WITH NOT A BIG AIRMASS CHANGE BEHIND MONDAYS FRONT...EXPECT TO SEE SCATTERED TO BROKEN CUMULUS DEVELOP ACROSS THE HIGHER TERRAIN INCREASING THE POTENTIAL FOR A STRAY SHOWER OR THUNDERSTORM. FORECASTER CONFIDENCE STARTS DECREASING TUESDAY NIGHT INTO WEDNESDAY AS SHORT TERM MODEL SOLUTIONS CONTINUE TO HAVE A HARD TIME RESOLVING THE PERSISTENT FAST WESTERLY FLOW AND WEAK SHORT WAVES ZIPPING ACROSS THE INTERNATIONAL BORDER. AFTER COLLABORATION FROM NEIGHBORING OFFICES TRENDED TOWARDS THE SREF FOR THIS TIME PERIOD...WHICH FEATURES A SHORTWAVE MOVING INTO THE AREA TUESDAY NIGHT INTO WEDNESDAY FOR A CHANCE OF SHOWERS AND THUNDERSTORMS. MAIN DIFFERENCES BETWEEN MODELS IS TIMING OF THIS FEATURE WITH THE SREF THE MOST PROGRESSIVE AND GFS THE SLOWEST. SREF SEEMED TO RESOLVE THE PROGRESSIVE NATURE OF TODAY'S SHORTWAVE SO THAT'S WHY WE TRENDED THIS WAY. AS THE SHORTWAVE TROUGH PASSES THROUGH THE REGION WEDNESDAY AFTERNOON/EVENING...PRECIPITATION CHANCES WILL DECREASE OVERNIGHT AS DRIER NORTHWEST FLOW ENSUES AHEAD OF APPROACHING HIGH PRESSURE FOR WEDNESDAY NIGHT. && .LONG TERM /THURSDAY THROUGH SUNDAY/... AS OF 232 PM EDT MONDAY...ZONAL FLOW EARLY IN THE PERIOD WITH WEAK SHORTWAVES PASSING IN THE NORTHERN WESTERLIES THROUGH THE REGION FOR CHC SHRA ESP IN NRN SECTIONS THU. A MORE PRONOUNCED S/W AND SFC LOW MOVING ACRS GRT LAKES INTO FA LATE FRI-SAT/SAT NGT WITH SHRA/TSRA THEN NW CYCLONIC FLOW ON SUN WITH INSTABILITY SHRA ACRS NRN/MTN AREAS. ON MONDAY...TROF EXITS WHILE UPR PLANS/CENTRAL CONUS RIDGE ATTEMPTS TO BUILD INTO FA FOR NEXT WEEK OR BECOMES DAMPENED TO ZONAL FLOW DUE TO NRN STREAM ENERGY. && .AVIATION /19Z MONDAY THROUGH SATURDAY/... THROUGH 18Z TUESDAY...LOW PRESSURE SLIDING ACRS NRN VT THIS AFTN WITH TRAILING WEAK CD FNT MVG ACRS NRN NY/VT THRU 22Z. MAINLY VFR CONDS WITH CLDS/SHRA BUT SOME SCT +SHRA BRINGING BRIEF MVFR/IFR FOR AN HLF HOUR OR LESS WITH VRY ISOLD TSRA. AFT 00Z TUE...GRDL CLRG WITH LIGHT GRADIENT AND DECENT LLVL MOISTURE. PRIMARILY VFR WITH AREAS MVFR DUE TO VSBY WITH CLIMO FAVORED ISOLD/SCT IFR/LIFR DUE TO DENSE FOG/CIGS...KSLK/KMPV. AFT 12Z...VFR CONDS WITH GRADL INCREASING CLDS W TO E AHEAD OF NEXT SYSTEM FOR TUES NGT. OUTLOOK 18Z TUESDAY THROUGH FRIDAY...THE WAVE OF PRECIP ARRIVES AFTER 00Z WEDNESDAY THRU ABOUT 18Z. MAINLY VFR CONDS AFTER THAT...BUT CANT RULE OUT THEY TYPICAL SUMMERTIME AFTERNOON SHRA/TSRA FOR THURSDAY OR FRIDAY. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...NONE. NY...NONE. && SYNOPSIS...SISSON NEAR TERM...LAHIFF/SISSON SHORT TERM...SISSON LONG TERM...WGH AVIATION...SLW
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BURLINGTON VT 432 AM EDT MON JUL 19 2010 NYZ026>031-034-035-087-VTZ001>012-016>019-200845- 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- 432 AM EDT MON JUL 19 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW YORK...CENTRAL VERMONT...NORTHEAST VERMONT...NORTHWEST VERMONT AND SOUTHERN VERMONT. .DAY ONE...TODAY AND TONIGHT. SOME LOCALLY HEAVY RAIN IS POSSIBLE TODAY IN ADDITION TO SOME STRONG THUNDERSTORMS THIS AFTERNOON...ESPECIALLY ACROSS CENTRAL AND SOUTHERN VERMONT. A FEW THUNDERSTORMS MAY BE ACCOMPANIED BY STRONG WINDS...HEAVY DOWNPOURS AND POSSIBLY SOME HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. ANOTHER FRONTAL SYSTEM MAY BRING A CHANCE OF STRONG THUNDERSTORMS NEXT WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BURLINGTON VT 339 PM EDT MON JUL 19 2010 NYZ030-034-192030- SOUTHERN FRANKLIN NY-WESTERN ESSEX NY- 339 PM EDT MON JUL 19 2010 ...A STRONG THUNDERSTORM WILL AFFECT ESSEX AND FRANKLIN COUNTIES... AT 336 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR RAY BROOK... MOVING SOUTHEAST AT 25 MPH. WIND GUSTS TO 30 MPH ARE POSSIBLE WITH THIS STORM. VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. THIS STORM WILL BE NEAR RAY BROOK AROUND 345 PM...MOUNT VAN HOEVENBERG AROUND 400 PM...MOUNT MARCY AROUND 415 PM AND ST. HUBERTS AROUND 430 PM. LAT...LON 4419 7359 4397 7374 4419 7430 4435 7420 HANSON
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
405 PM EDT MON JUL 19 2010
VTZ009-011-192100-
WESTERN ADDISON VT-WESTERN RUTLAND VT-
405 PM EDT MON JUL 19 2010
...A STRONG THUNDERSTORM WILL AFFECT ADDISON AND RUTLAND COUNTIES...
AT 400 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR HULETTS
LANDING...MOVING EAST AT 15 MPH.
WIND GUSTS TO 30 MPH AND PEA-SIZED HAIL ARE POSSIBLE WITH THIS STORM.
THIS STORM WILL BE NEAR WEST HAVEN AROUND 445 PM AND WEST CASTLETON
AROUND 500 PM.
LAT...LON 4354 7326 4357 7329 4362 7331 4361 7336
4358 7337 4357 7339 4358 7343 4364 7343
4372 7338 4377 7336 4380 7303 4353 7304
LAHIFFSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
434 PM EDT MON JUL 19 2010
VTZ009>012-018-019-192130-
EASTERN ADDISON VT-EASTERN RUTLAND VT-ORANGE VT-WESTERN ADDISON VT-
WESTERN RUTLAND VT-WINDSOR VT-
434 PM EDT MON JUL 19 2010
...STRONG THUNDERSTORMS WILL AFFECT ADDISON...ORANGE...RUTLAND AND
WINDSOR COUNTIES...
AT 428 PM EDT...A LINE OF STRONG THUNDERSTORMS WERE ALONG A LINE
FROM SALISBURY STATION TO WEST HAVEN IN ADDISON AND RUTLAND
COUNTIES...MOVING EAST AT 35 MPH.
WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.
VERY HEAVY RAIN WILL FALL FROM THESE STORMS AS WELL.
THESE STORMS WILL BE NEAR HANCOCK AROUND 445 PM...RANDOLPH AROUND 500
PM...EAST RANDOLPH AROUND 515 PM AND SOUTH VERSHIRE AROUND 530 PM.
AS STORMS APPROACH...SEEK SHELTER IMMEDIATELY.
LAT...LON 4362 7330 4362 7333 4392 7312 4406 7206
4364 7233 4351 7326
EVENSONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
453 PM EDT MON JUL 19 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0449 PM HAIL 5 N LEICESTER 43.88N 73.07W
07/19/2010 E0.25 INCH ADDISON VT TRAINED SPOTTER
&&
NICOLEHSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
453 PM EDT MON JUL 19 2010
NYZ034-035-VTZ009-192130-
EASTERN ESSEX NY-WESTERN ADDISON VT-WESTERN ESSEX NY-
453 PM EDT MON JUL 19 2010
...STRONG THUNDERSTORMS MOVING ACROSS EASTERN ESSEX COUNTY NEW YORK
AND WILL AFFECT WESTERN ADDISON COUNTY...
AT 449 PM EDT...WEATHER SERVICE RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS EXTENDING FROM JUST SOUTH OF WESTPORT TO JUST WEST OF
SCHROON FALLS. THESE STORMS WERE MOVING EAST AT 30 MPH.
WIND GUSTS TO 45 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH
THESE STORMS. VERY HEAVY RAIN WILL FALL...AND WILL CAUSE WATER
TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.
THE STORMS WILL BE NEAR ADDISON AROUND 500 PM AND WEYBRIDGE AROUND
515 PM.
PEOPLE IN THE AREA SHOULD MOVE INDOORS AS THE STORMS APPROACH.
LAT...LON 4381 7393 4403 7404 4424 7346 4423 7314
4382 7328
NASHSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
456 PM EDT MON JUL 19 2010
VTZ011-012-019-192200-
EASTERN RUTLAND VT-WESTERN RUTLAND VT-WINDSOR VT-
456 PM EDT MON JUL 19 2010
...A STRONG THUNDERSTORM WILL AFFECT RUTLAND AND WINDSOR COUNTIES...
AT 447 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR EAST
POULTNEY IN RUTLAND COUNTY...MOVING SOUTHEAST AT 25 MPH.
WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
VERY HEAVY RAIN WILL ALSO FALL FROM THIS STORM.
THIS STORM WILL BE NEAR IRA AROUND 500 PM...WALLINGFORD AROUND 515
PM...BELMONT AROUND 530 PM...LUDLOW AROUND 545 PM AND GASSETTS AROUND
600 PM. AS THIS STORM APPROACHES...SEEK SHELTER IMMEDIATELY!
LAT...LON 4347 7325 4352 7326 4364 7318 4342 7241
4323 7254 4322 7266
EVENSONThe Albany radar (KENX), 111 km away, was scanning. The volume nearest the first event began at 21:00 UTC.
4 thunderstorm wind, 3 hail. Local standard time, as filed.
Reports of several trees down along power lines in Pawlet.
Reports of trees down along Route 125 in Cornwall.
Penny size hail reported.
Several tree limbs down, including 4-5 inch diameter.
Trees down on power lines along Upper and Lower Michigan road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Vermont in 2010Every state in 2010This day in weather historyWarnings in Vermont, July 2010
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: 233875, 233876, 233871, 233873, 233874, 233877, 233878.