Vermont, 2007

Hail and Damaging Winds in Vermont, August 16, 2007

August 16, 2007 · NWS BTV · 29 events in 11 counties and zones

Scattered thunderstorms developed in a moderately unstable airmass across the Champlain Valley of New York during the afternoon of the 16th. One thunderstorm developed in a favorable, highly sheared wind environment which eventually intensified into a supercell thunderstorm in Clinton county, NY.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$1.3 million
Crop damage
$20,000
Events
29

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.

What happened

The episode as NWS BTV wrote it up.

Scattered thunderstorms developed in a moderately unstable airmass across the Champlain Valley of New York during the afternoon of the 16th. One thunderstorm developed in a favorable, highly sheared wind environment which eventually intensified into a supercell thunderstorm in Clinton county, NY. This supercell then proceeded to travel into Vermont affecting numerous communities between Grand Isle (Grand Isle county) and Concord (Essex county). Significant straight-line wind damage (estimated between 60 and 80 mph) in the form of snapped, uprooted and downed trees, downed power lines and some structural damage occurred in Grand Isle, Georgia (Franklin county), Westford (Chittenden county) and Hardwick (Caledonia county).

Also, there were several thunderstorms, including a supercell that developed in the northern Hudson Valley of New York and moved across Rutland and Windsor counties in southern Vermont. Significant straight-line wind damage (estimated between 60 and 80 mph) in the form of snapped, uprooted and downed trees, downed power lines and some structural damage occurred as well in Rutland (Rutland county) and surrounding communities.

What forecasters said that day

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 16, 2:05 PM EST, 45 minutes earlier.

Area forecast discussion, Aug 16, 2:05 PM EST, 45 minutes before
ZONE FORECAST PRODUCT FOR VERMONT AND NORTHERN NEW YORK
NATIONAL WEATHER SERVICE BURLINGTON VT
305 PM EDT THU AUG 16 2007

NYZ028-035-VTZ001-002-005-009-170815-
EASTERN CLINTON-EASTERN ESSEX-GRAND ISLE-WESTERN FRANKLIN-
WESTERN CHITTENDEN-WESTERN ADDISON-
INCLUDING THE CITIES OF...PLATTSBURGH...PORT HENRY...TICONDEROGA...
ALBURGH...SOUTH HERO...ST. ALBANS...BURLINGTON...MIDDLEBURY...
VERGENNES
305 PM EDT THU AUG 16 2007

.TONIGHT...PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH EARLY EVENING...THEN A SLIGHT CHANCE OF SHOWERS THROUGH
EARLY MORNING. SOME THUNDERSTORMS MAY PRODUCE SMALL HAIL AND
DAMAGING WINDS THROUGH EARLY EVENING. LOWS IN THE MID 50S. SOUTHWEST
WINDS 10 TO 20 MPH WITH GUSTS UP TO 30 MPH...BECOMING
NORTHWEST 5 TO 15 MPH FROM LATE EVENING ON. CHANCE OF RAIN
50 PERCENT.
.FRIDAY...MOSTLY SUNNY IN THE MORNING...THEN BECOMING CLOUDY WITH A
CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL HAIL IN THE
AFTERNOON. HIGHS IN THE LOWER 70S. WEST WINDS 5 TO 10 MPH. CHANCE OF
RAIN 50 PERCENT.
.FRIDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 50S. NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.SATURDAY...PARTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS 5 TO
10 MPH.
.SATURDAY NIGHT...CLEAR. LOWS IN THE MID 40S. NORTHWEST WINDS 5 TO
10 MPH.
.SUNDAY THROUGH MONDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 60S. LOWS
IN THE UPPER 40S.
.MONDAY NIGHT AND TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S.
.TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S.
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A 30 PERCENT CHANCE
OF SHOWERS. HIGHS IN THE LOWER 80S. LOWS IN THE LOWER 60S.
.THURSDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE MID 80S.

VTZ003-006-008-016-017-170815-
ORLEANS-LAMOILLE-WASHINGTON-EASTERN FRANKLIN-EASTERN CHITTENDEN-
INCLUDING THE CITIES OF...NEWPORT...JOHNSON...STOWE...MONTPELIER...
ENOSBURG FALLS...RICHFORD...UNDERHILL
305 PM EDT THU AUG 16 2007

.TONIGHT...PARTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY
THROUGH EARLY EVENING...THEN A SLIGHT CHANCE OF
SHOWERS FROM LATE EVENING ON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS AND SMALL HAIL THROUGH EARLY EVENING. PATCHY FOG AFTER
MIDNIGHT. LOWS IN THE LOWER 50S. SOUTHWEST WINDS 10 TO 15 MPH WITH
GUSTS UP TO 35 MPH...BECOMING NORTHWEST 5 TO 15 MPH WITH GUSTS UP
TO 30 MPH FROM LATE EVENING ON. CHANCE OF RAIN 70 PERCENT.
.FRIDAY...PARTLY SUNNY. A CHANCE OF SHOWERS WITH ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS AND SMALL HAIL IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.FRIDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER
40S. NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.SATURDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS
AROUND 60. NORTHWEST WINDS 10 TO 15 MPH.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTHWEST
WINDS 5 TO 10 MPH WITH GUSTS UP TO 30 MPH UNTIL MIDNIGHT...BECOMING
LIGHT AND VARIABLE.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 60S.
LOWS IN THE LOWER 40S.
.MONDAY AND MONDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE UPPER 60S.
LOWS IN THE UPPER 40S.
.TUESDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
.TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 50S.
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A 30 PERCENT CHANCE
OF SHOWERS. HIGHS IN THE UPPER 70S. LOWS IN THE UPPER 50S.
.THURSDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE LOWER 80S.

VTZ004-007-170815-
ESSEX-CALEDONIA-
INCLUDING THE CITIES OF...ISLAND POND...ST. JOHNSBURY
305 PM EDT THU AUG 16 2007

.TONIGHT...PARTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS
LIKELY THROUGH EARLY EVENING...THEN A CHANCE OF SHOWERS THROUGH
EARLY MORNING. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL
HAIL THROUGH EARLY EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE
LOWER 50S. WEST WINDS 5 TO 10 MPH WITH GUSTS UP TO 30 MPH THROUGH
EARLY MORNING...BECOMING LIGHT AND VARIABLE. CHANCE OF RAIN 70
PERCENT.
.FRIDAY...PARTLY SUNNY. A CHANCE OF SHOWERS WITH ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS AND SMALL HAIL IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.FRIDAY NIGHT...CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER
40S. WEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.SATURDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE UPPER 50S. NORTHWEST WINDS 5 TO 10 MPH.
.SATURDAY NIGHT...MOSTLY CLEAR. A CHANCE OF SHOWERS UNTIL MIDNIGHT.
LOWS IN THE LOWER 40S. NORTHWEST WINDS 5 TO 10 MPH UNTIL MIDNIGHT...
BECOMING LIGHT AND VARIABLE. CHANCE OF RAIN 30 PERCENT.
.SUNDAY...PARTLY SUNNY. HIGHS IN THE LOWER 60S.
.SUNDAY NIGHT AND MONDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 60S.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE
UPPER 40S. HIGHS AROUND 70.
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A 30 PERCENT CHANCE
OF SHOWERS. HIGHS IN THE UPPER 70S. LOWS IN THE MID 50S.
.THURSDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS
AROUND 80.

VTZ011-170815-
WESTERN RUTLAND-
INCLUDING THE CITIES OF...RUTLAND
305 PM EDT THU AUG 16 2007

.TONIGHT...PARTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY
THROUGH EARLY EVENING...THEN A SLIGHT CHANCE OF SHOWERS LATE. SOME
THUNDERSTORMS MAY PRODUCE SMALL HAIL AND DAMAGING WINDS THROUGH
EARLY EVENING. LOWS IN THE MID 50S. SOUTH WINDS 5 TO 10 MPH. CHANCE
OF RAIN 70 PERCENT.
.FRIDAY...MOSTLY SUNNY IN THE MORNING...THEN BECOMING CLOUDY WITH A
SLIGHT CHANCE OF SHOWERS WITH ISOLATED THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS AND SMALL HAIL IN THE AFTERNOON. HIGHS IN THE LOWER 70S. WEST
WINDS 5 TO 10 MPH. CHANCE OF RAIN 20 PERCENT.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A CHANCE OF SHOWERS UNTIL
MIDNIGHT...THEN CLEARING AFTER MIDNIGHT. LOWS IN THE LOWER 50S. WEST
WINDS AROUND 5 MPH. CHANCE OF RAIN 40 PERCENT.
.SATURDAY...PARTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS 5 TO
10 MPH.
.SATURDAY NIGHT...CLEAR. LOWS IN THE MID 40S. NORTHWEST WINDS AROUND
5 MPH UNTIL MIDNIGHT...BECOMING LIGHT AND VARIABLE.
.SUNDAY THROUGH MONDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 60S. LOWS
IN THE UPPER 40S.
.MONDAY NIGHT AND TUESDAY...PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...PARTLY CLOUDY WITH A
30 PERCENT CHANCE OF SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 80S.
.THURSDAY...PARTLY SUNNY. HIGHS IN THE MID 80S.

VTZ018-019-170815-
EASTERN ADDISON-EASTERN RUTLAND-
INCLUDING THE CITIES OF...BRISTOL...RIPTON...EAST WALLINGFORD...
KILLINGTON
305 PM EDT THU AUG 16 2007

.TONIGHT...PARTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY
THROUGH EARLY EVENING...THEN A SLIGHT CHANCE OF SHOWERS LATE. SOME
THUNDERSTORMS MAY PRODUCE SMALL HAIL AND DAMAGING WINDS THROUGH
EARLY EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE MID 50S.
SOUTHWEST WINDS 5 TO 15 MPH. CHANCE OF RAIN 60 PERCENT.
.FRIDAY...PARTLY SUNNY. A CHANCE OF SHOWERS WITH ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS AND SMALL HAIL IN THE AFTERNOON. HIGHS IN THE UPPER 60S. WEST
WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.FRIDAY NIGHT...CLOUDY. A CHANCE OF SHOWERS UNTIL MIDNIGHT. LOWS IN
THE UPPER 40S. WEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.SATURDAY...PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTHWEST
WINDS 5 TO 10 MPH UNTIL MIDNIGHT...BECOMING LIGHT AND VARIABLE.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 60S.
LOWS IN THE LOWER 40S.
.MONDAY AND MONDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE UPPER 60S.
LOWS IN THE UPPER 40S.
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 50S.
.WEDNESDAY THROUGH THURSDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE
OF SHOWERS. HIGHS AROUND 80. LOWS IN THE MID 50S.

NYZ026-027-087-170815-
NORTHERN ST. LAWRENCE-NORTHERN FRANKLIN-SOUTHWESTERN ST. LAWRENCE-
INCLUDING THE CITIES OF...MASSENA...MALONE...OGDENSBURG...POTSDAM...
GOUVERNEUR
305 PM EDT THU AUG 16 2007

.TONIGHT...PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH EARLY EVENING...THEN CLEARING TOWARD MORNING. SOME
THUNDERSTORMS MAY PRODUCE SMALL HAIL AND DAMAGING WINDS THROUGH
EARLY EVENING. LOWS AROUND 50. WEST WINDS 10 TO 15 MPH WITH GUSTS UP
TO 35 MPH...DECREASING TO AROUND 5 MPH FROM LATE EVENING ON. CHANCE
OF RAIN 50 PERCENT.
.FRIDAY...SUNNY IN THE MORNING...THEN PARTLY SUNNY WITH SHOWERS
LIKELY WITH ISOLATED THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL HAIL IN THE
AFTERNOON. HIGHS IN THE LOWER 70S. WEST WINDS 5 TO 10 MPH. CHANCE OF
RAIN 70 PERCENT.
.FRIDAY NIGHT...MOSTLY CLOUDY WITH SHOWERS LIKELY UNTIL MIDNIGHT...
THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS AROUND 50. WEST WINDS 5 TO
10 MPH. CHANCE OF RAIN 70 PERCENT.
.SATURDAY...PARTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS 5 TO
10 MPH.
.SATURDAY NIGHT...CLEAR. LOWS IN THE LOWER 40S. SOUTHWEST WINDS 5 TO
10 MPH.
.SUNDAY THROUGH MONDAY...MOSTLY CLEAR. HIGHS AROUND 70. LOWS IN THE
UPPER 40S.
.MONDAY NIGHT AND TUESDAY...PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S.
.TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S.
.WEDNESDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE LOWER 80S.
.WEDNESDAY NIGHT AND THURSDAY...MOSTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS. LOWS AROUND 60. HIGHS IN THE LOWER 80S.

NYZ029>031-034-170815-
SOUTHEASTERN ST. LAWRENCE-SOUTHERN FRANKLIN-WESTERN CLINTON-
WESTERN ESSEX-
INCLUDING THE CITIES OF...STAR LAKE...SARANAC LAKE...TUPPER LAKE...
DANNEMORA...LAKE PLACID
305 PM EDT THU AUG 16 2007

.TONIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH EARLY EVENING...THEN MOSTLY CLEAR TOWARD EARLY MORNING. SOME
THUNDERSTORMS MAY PRODUCE SMALL HAIL AND DAMAGING WINDS THROUGH
EARLY EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE UPPER 40S.
WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH...BECOMING NORTHWEST
AROUND 5 MPH FROM LATE EVENING ON. CHANCE OF RAIN 50 PERCENT.
.FRIDAY...PARTLY SUNNY. A CHANCE OF SHOWERS WITH ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS AND SMALL HAIL IN THE AFTERNOON. HIGHS IN THE UPPER 60S. WEST
WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.FRIDAY NIGHT...CLOUDY. A CHANCE OF SHOWERS UNTIL MIDNIGHT. LOWS IN
THE MID 40S. NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
.SATURDAY...PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
5 TO 10 MPH.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 40S. WEST WINDS
5 TO 10 MPH. GUSTS UP TO 30 MPH UNTIL MIDNIGHT.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 60S.
LOWS IN THE MID 40S.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
.MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 40S.
.TUESDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
.TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 50S.
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY. A 30 PERCENT CHANCE
OF SHOWERS. HIGHS IN THE UPPER 70S. LOWS IN THE MID 50S.
.THURSDAY...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. HIGHS
IN THE UPPER 70S.

VTZ010-012-170815-
ORANGE-WINDSOR-
INCLUDING THE CITIES OF...BRADFORD...RANDOLPH...SPRINGFIELD...
WHITE RIVER JUNCTION
305 PM EDT THU AUG 16 2007

.TONIGHT...PARTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY
THROUGH EARLY EVENING...THEN A SLIGHT CHANCE OF SHOWERS LATE. SOME
THUNDERSTORMS MAY PRODUCE SMALL HAIL AND DAMAGING WINDS THROUGH
EARLY EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE MID 50S. WEST
WINDS 5 TO 15 MPH. CHANCE OF RAIN 70 PERCENT.
.FRIDAY...PARTLY SUNNY. A CHANCE OF SHOWERS WITH ISOLATED
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS AND SMALL HAIL IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
NORTHWEST WINDS 5 TO 10 MPH. CHANCE OF RAIN 40 PERCENT.
.FRIDAY NIGHT...MOSTLY CLOUDY. A CHANCE OF SHOWERS UNTIL MIDNIGHT.
LOWS IN THE UPPER 40S. WEST WINDS 5 TO 10 MPH. CHANCE OF RAIN
50 PERCENT.
.SATURDAY...PARTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHWEST WINDS
10 TO 15 MPH.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 40S. NORTHWEST WINDS
5 TO 10 MPH UNTIL MIDNIGHT...BECOMING LIGHT AND VARIABLE.
.SUNDAY THROUGH MONDAY...MOSTLY CLEAR. HIGHS IN THE MID 60S. LOWS IN
THE LOWER 40S.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S.
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 50S.
.WEDNESDAY THROUGH THURSDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE
OF SHOWERS. HIGHS IN THE LOWER 80S. LOWS IN THE MID 50S.
Hazardous weather outlook, Aug 16, 4:44 AM EST, 10 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BURLINGTON VT
544 AM EDT THU AUG 16 2007

NYZ026>031-034-035-087-VTZ001-002-005-006-008>012-016>019-170945-
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-WESTERN CHITTENDEN-LAMOILLE-WASHINGTON-
WESTERN ADDISON-ORANGE-WESTERN RUTLAND-WINDSOR-EASTERN FRANKLIN-
EASTERN CHITTENDEN-EASTERN ADDISON-EASTERN RUTLAND-
544 AM EDT THU AUG 16 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW YORK...CENTRAL
VERMONT...NORTHWEST VERMONT AND SOUTHERN VERMONT.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON. GUSTY WINDS
ARE EXPECTED IN THUNDERSTORMS. AN ISOLATED SEVERE STORM IS
POSSIBLE WITH DAMAGING WINDS THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

VTZ003-004-007-170945-
ORLEANS-ESSEX-CALEDONIA-
544 AM EDT THU AUG 16 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST VERMONT.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON. GUSTY WINDS
ARE EXPECTED IN THUNDERSTORMS. AN ISOLATED SEVERE STORM IS
POSSIBLE WITH DAMAGING WINDS THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 16, 12:22 PM EST, 2 hours 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
122 PM EDT THU AUG 16 2007

NYZ026>031-034-035-087-VTZ001-002-005-009-016>018-161845-
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-WESTERN CHITTENDEN-WESTERN ADDISON-
EASTERN FRANKLIN-EASTERN CHITTENDEN-EASTERN ADDISON-
INCLUDING THE CITIES OF...MASSENA...MALONE...PLATTSBURGH...
STAR LAKE...SARANAC LAKE...TUPPER LAKE...DANNEMORA...
LAKE PLACID...PORT HENRY...TICONDEROGA...OGDENSBURG...POTSDAM...
GOUVERNEUR...ALBURGH...SOUTH HERO...ST. ALBANS...BURLINGTON...
MIDDLEBURY...VERGENNES...ENOSBURG FALLS...RICHFORD...UNDERHILL...
BRISTOL...RIPTON
122 PM EDT THU AUG 16 2007

...STRONG THUNDERSTORMS EXPECTED THIS AFTERNOON...

SCATTERED THUNDERSTORMS WERE DEVELOPING ACROSS ONTARIO AND MOVING
RAPIDLY EASTWARD TOWARD NORTHERN NEW YORK. THESE STORMS ARE
EXPECTED TO MOVE INTO THE SAINT LAWRENCE VALLEY AFTER 2 PM...AND
REACH THE CHAMPLAIN VALLEY BETWEEN 4 AND 5 PM.

SOME OF THE THUNDERSTORMS ARE EXPECTED TO BECOME STRONG...AND BE
CAPABLE OF PRODUCING WIND GUSTS IN EXCESS OF 40 MPH...HAIL AND
BRIEFLY HEAVY RAINFALL.

NASH
Special weather statement, Aug 16, 1:55 PM EST, 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
255 PM EDT THU AUG 16 2007

NYZ026-027-087-162000-
NORTHERN FRANKLIN-NORTHERN ST. LAWRENCE-SOUTHWESTERN ST. LAWRENCE-
INCLUDING...MASSENA AND OGDENSBURG
255 PM EDT THU AUG 16 2007

...STRONG THUNDERSTORM APPROACHING ST LAWRENCE COUNTY...

AT 255 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM 11 MILES NORTHWEST OF OGDENSBURG...MOVING EAST AT 45
MPH.

THE THUNDERSTORM WILL REACH THE BORDER WADDINGTON BY 320 PM AND
THEN MOVE TO NEAR MASSENA BY 335 PM AND HOGANSBURG AND SOUTH BOMBAY
BY 400 PM.

SMALL HAIL AND WIND GUSTS OF 40 MPH OR HIGHER MAY ACCOMPANY THE
THUNDERSTORMS.

NASH
Special weather statement, Aug 16, 2:05 PM EST, 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
305 PM EDT THU AUG 16 2007

NYZ028-030-031-162000-
EASTERN CLINTON-WESTERN CLINTON-SOUTHERN FRANKLIN-
INCLUDING...ALTONA...BRAINARDSVILLE...BRYANTS MILL...CHASM FALLS...
CHAZY LAKE...DEBAR MOUNTAIN...DICKINSON CENTER...DUANE CENTER...
ELLENBURG...ELLENBURG CENTER...ELLENBURG DEPOT...ELLENBURG
MOUNTAIN...HARRIGAN...IRONA...LOON LAKE...LYON MOUNTAIN...MERRILL...
OWLS HEAD...RIVERVIEW...SANTA CLARA...ST. REGIS FALLS...STANDISH...
WHIPPLEVILLE AND WOLF POND
305 PM EDT THU AUG 16 2007

...STRONG THUNDERSTORMS OVER NORTHERN NEW YORK...

AT 305 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS...SOME STRONG...FROM WESTERN CLINTON COUNTY NEAR
ELLENBURG SOUTHWEST ACROSS FRANKLIN COUNTY. THESE THUNDERSTORMS
WERE MOVING EAST AT 40 MPH.

SMALL HAIL AND STRONG WIND GUSTS OF 40 MPH OR HIGHER...ALONG WITH
HEAVY RAINFALL MAY ACCOMPANY THE THUNDERSTORMS.

NASH
Local storm report, Aug 16, 2:38 PM EST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
338 PM EDT THU AUG 16 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0332 PM     HAIL             WEST BEEKMANTOWN        44.77N 73.56W
08/16/2007  E0.88 INCH       CLINTON            NY   TRAINED SPOTTER

            NICKEL SIZE HAIL AND SMALL BRANCHES DOWN REPORTED

&&

SLW
Local storm report, Aug 16, 2:44 PM EST, 6 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BURLINGTON VT
344 PM EDT THU AUG 16 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0332 PM     HAIL             WEST BEEKMANTOWN        44.77N 73.56W
08/16/2007  E0.88 INCH       CLINTON            NY   TRAINED SPOTTER

            NICKEL SIZE HAIL AND SMALL BRANCHES DOWN REPORTED

0339 PM     HAIL             BEEKMANTOWN             44.77N 73.48W
08/16/2007  E1.00 INCH       CLINTON            NY   TRAINED SPOTTER

            QUARTER SIZE HAIL AND ESTIMATED WIND GUSTS IN EXCESS OF
            50 MPH REPORTED.

&&

SLW

The radar

The Burlington radar (KCXX), 26 km away, was scanning. The volume nearest the first event began at 19:47 UTC.

Open the radar archive at this moment

Event by event

23 thunderstorm wind, 5 hail, 1 funnel cloud. Local standard time, as filed.

Thunderstorm Wind, Grand Isle

When
August 16, 2:50 PM EST
Where
Grand Isle County, 1 mi W of Grand Isle
Measured
70 kt (81 mph) estimated gust
Property damage
$250,000
Reported by
Law Enforcement
Coordinates
44.720, -73.300

Numerous trees and powerlines down in Grand Isle, which have blocked and closed several roads including Route 2. Trees fell and trapped drivers in two vehicles with no injuries reported. Wind damage in the form of trees piercing through roofs, crushed vehicles, docks and patios torn off to several camps along the west shore of Route 2, including Irish Rover Lane.

Funnel Cloud, Grand Isle

When
August 16, 2:55 PM EST
Where
Grand Isle County, 1 mi NNW of South Hero
Reported by
Fire Department/Rescue
Coordinates
44.663, -73.328

Funnel cloud reported to the north by fire chief near Keeler Bay along Route 2.

Hail, Grand Isle

When
August 16, 2:55 PM EST
Where
Grand Isle County, Grand Isle
Measured
1 in hail
Reported by
NWS Employee
Coordinates
44.720, -73.280

Quarter size hail reported by retired NWS employee.

Thunderstorm Wind, Franklin

When
August 16, 3:00 PM EST
Where
Franklin County, Georgia Center
Measured
60 kt (69 mph) estimated gust
Property damage
$150,000
Crop damage
$20,000
Reported by
Law Enforcement
Coordinates
44.720, -73.120

Numerous trees down along interstate 89 near exit 18 in both the north and south bound lanes closing the interstate. Also, numerous reports of trees and power lines down throughout Georgia and Georgia Center blocking local roads and Route 7 with damage to vehicles, decks, homes and mobile homes. Also, mature corn crops were flattened by thunderstorm winds.

Thunderstorm Wind, Chittenden

When
August 16, 3:05 PM EST
Where
Chittenden County, Milton
Measured
55 kt (63 mph) estimated gust
Property damage
$75,000
Reported by
Trained Spotter
Coordinates
44.630, -73.120

Trees and power lines down throughout town, including a 40 foot tree that fell on a car with estimated winds in excess of 60 mph.

Hail, Franklin

When
August 16, 3:08 PM EST
Where
Franklin County, 1 mi N of Georgia Center
Measured
1 in hail
Reported by
Trained Spotter
Coordinates
44.734, -73.120

Quarter size hail reported.

Thunderstorm Wind, Chittenden

When
August 16, 3:10 PM EST
Where
Chittenden County, Milton
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Trained Spotter
Coordinates
44.630, -73.120

A 40 foot tree fell on a car.

Thunderstorm Wind, Chittenden

When
August 16, 3:15 PM EST
Where
Chittenden County, Westford
Measured
55 kt (63 mph) estimated gust
Property damage
$75,000
Reported by
NWS Employee
Coordinates
44.620, -73.020

Numerous trees and power lines down, especially along Route 128 and the Milton-Westford road. Some trees fell on homes, vehicles and sheds.

Thunderstorm Wind, Franklin

When
August 16, 3:20 PM EST
Where
Franklin County, Fairfax
Measured
60 kt (69 mph) estimated gust
Property damage
$50,000
Reported by
NWS Employee
Coordinates
44.670, -73.020

Numerous trees down throughout Fairfax including Buck Hollow road as well as Vermont Roues 104 and 104A. The damage path was estimated at 1 to 1.5 miles long by NWS employee.

Thunderstorm Wind, Lamoille

When
August 16, 3:20 PM EST
Where
Lamoille County, Cambridge
Measured
55 kt (63 mph) estimated gust
Property damage
$25,000
Reported by
Trained Spotter
Coordinates
44.650, -72.880

Numerous trees down along Route 15 and Bryce road in the town of Cambridge.

Thunderstorm Wind, Lamoille

When
August 16, 3:30 PM EST
Where
Lamoille County, Jeffersonville
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Trained Spotter
Coordinates
44.650, -72.830

Several trees down on Route 108.

Hail, Lamoille

When
August 16, 3:40 PM EST
Where
Lamoille County, Jeffersonville
Measured
0.75 in hail
Reported by
Trained Spotter
Coordinates
44.650, -72.830

Penny size hail reported.

Thunderstorm Wind, Caledonia

When
August 16, 3:50 PM EST
Where
Caledonia County, Hardwick
Measured
55 kt (63 mph) estimated gust
Property damage
$50,000
Reported by
Post Office
Coordinates
44.500, -72.370

Numerous trees and power lines down throughout the town of Hardwick.

Thunderstorm Wind, Orleans

When
August 16, 3:55 PM EST
Where
Orleans County, Greensboro Bend
Measured
50 kt (58 mph) estimated gust
Property damage
$20,000
Reported by
Public
Coordinates
44.550, -72.270

Trees down and reported power outages.

Thunderstorm Wind, Washington

When
August 16, 3:55 PM EST
Where
Washington County, 4 mi NNW of Cabot
Measured
55 kt (63 mph) estimated gust
Property damage
$50,000
Reported by
Public
Coordinates
44.453, -72.331

Trees down with some damage to farmstead.

Thunderstorm Wind, Caledonia

When
August 16, 4:15 PM EST
Where
Caledonia County, Lyndonville
Measured
50 kt (58 mph) estimated gust
Property damage
$20,000
Reported by
Law Enforcement
Coordinates
44.530, -72.000

Several trees reported down throughout town.

Thunderstorm Wind, Essex

When
August 16, 4:25 PM EST
Where
Essex County, Concord
Measured
50 kt (58 mph) estimated gust
Property damage
$20,000
Reported by
Post Office
Coordinates
44.430, -71.880

Trees down on power lines along Route 2 and no power between Concord and Lunenburg.

Thunderstorm Wind, Rutland

When
August 16, 4:35 PM EST
Where
Rutland County, Benson
Measured
55 kt (63 mph) estimated gust
Property damage
$25,000
Reported by
Law Enforcement
Coordinates
43.720, -73.320

Numerous trees and power lines down in Benson.

Thunderstorm Wind, Addison

When
August 16, 4:45 PM EST
Where
Addison County, Ripton
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Utility Company
Coordinates
43.980, -73.030

Trees on power lines near Ripton.

Thunderstorm Wind, Rutland

When
August 16, 4:45 PM EST
Where
Rutland County, Hubbardton
Measured
60 kt (69 mph) estimated gust
Property damage
$75,000
Reported by
Law Enforcement
Coordinates
43.720, -73.180

Numerous trees and power lines down across Hubbardton with trees on houses, porches and vehicles.

Thunderstorm Wind, Rutland

When
August 16, 4:50 PM EST
Where
Rutland County, Brandon
Measured
60 kt (69 mph) estimated gust
Property damage
$75,000
Reported by
Law Enforcement
Coordinates
43.800, -73.080

Numerous trees and power lines down across Brandon with reports of trees on houses, porches and vehicles.

Thunderstorm Wind, Rutland

When
August 16, 4:55 PM EST
Where
Rutland County, Pittsford
Measured
60 kt (69 mph) estimated gust
Property damage
$100,000
Reported by
Law Enforcement
Coordinates
43.700, -73.030

Numerous trees and power lines down with some structural damage.

Hail, Rutland

When
August 16, 5:00 PM EST
Where
Rutland County, 2 mi S of Chittenden
Measured
1.5 in hail
Reported by
Public
Coordinates
43.691, -72.950

Large hail just below the size of golf ball reported.

Thunderstorm Wind, Rutland

When
August 16, 5:00 PM EST
Where
Rutland County, Chittenden
Measured
60 kt (69 mph) estimated gust
Property damage
$150,000
Reported by
Law Enforcement
Coordinates
43.720, -72.950

Large swath of trees and power lines down with some embedded structural and vehicle damage.

Thunderstorm Wind, Windsor

When
August 16, 5:15 PM EST
Where
Windsor County, Bethel
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Law Enforcement
Coordinates
43.830, -72.630

A large tree down and several branches, as well as a few power lines down on Oxbow road in Bethel.

Thunderstorm Wind, Rutland

When
August 16, 5:20 PM EST
Where
Rutland County, Killington
Measured
55 kt (63 mph) estimated gust
Property damage
$50,000
Reported by
Trained Spotter
Coordinates
43.670, -72.770

Numerous trees, branches and power lines down along Route 4 between Rutland and Killington.

Thunderstorm Wind, Windsor

When
August 16, 5:30 PM EST
Where
Windsor County, Bridgewater Corners
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Public
Coordinates
43.580, -72.670

Trees down.

Thunderstorm Wind, Windsor

When
August 16, 5:45 PM EST
Where
Windsor County, Hartford
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Law Enforcement
Coordinates
43.670, -72.330

Tree and several branches down along Route 14 in Hartford.

Hail, Rutland

When
August 16, 7:35 PM EST
Where
Rutland County, Middletown Spgs
Measured
0.88 in hail
Reported by
Trained Spotter
Coordinates
43.480, -73.120

Nickel size hail reported.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Funnel Cloud
A rotating column of cloud extending from a thunderstorm that did not reach the ground.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Vermont in 2007Every state in 2007This day in weather historyWarnings in Vermont, August 2007

Sources

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: 56882, 56876, 56877, 56883, 56884, 56878, 57407, 56885, 56886, 56887, 56889, 56879, 56890, 56891, 56892, 56893, 56894, 56895, 56896, 56898, 56897, 56899, 56880, 56900, 57410, 57414, 57416, 57417, 56881.