A cold front, combined with the passage of a potent upper atmospheric disturbance, led to the development of scattered showers and embedded thunderstorms during Friday evening on August 17th. Strong winds accompanied these showers and thunderstorms, with some gusts of 50 mph and higher observed.
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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 ALY wrote it up.
A cold front, combined with the passage of a potent upper atmospheric disturbance, led to the development of scattered showers and embedded thunderstorms during Friday evening on August 17th. Strong winds accompanied these showers and thunderstorms, with some gusts of 50 mph and higher observed.
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 Albany, NY wrote its last area forecast discussion before the first event at Aug 17, 8:52 PM EST, 26 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ALBANY NY 952 PM EDT FRI AUG 17 2007 .SYNOPSIS... A RATHER STRONG UPPER LEVEL DISTURBANCE IS EXPECTED TO MOVE SOUTHEAST ACROSS THE EASTERN GREAT LAKES INTO NEW ENGLAND TONIGHT WITH THE CHANCE FOR SOME SHOWER ACTIVITY. A FEW RUMBLES OF THUNDER CAN NOT BE RULED OUT EITHER. THEN A LARGE CANADIAN HIGH PRESSURE SYSTEM WILL SETTLE ACROSS THE REGION FOR THE BALANCE OF THE WEEKEND...WITH COOLER THAN NORMAL TEMPERATURES EXPECTED. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... CONVECTION LARGELY WITHOUT LIGHTNING PRODUCED WIND GUSTS 40 TO 55 MPH BRIEFLY AS IT TRACKED THROUGH. BRIEF WIND GUSTS CAUSED SOME TREES AND WIRES TO COME DOWN IN SOME PLACES. SURFACE DEW POINT GRADIENT WAS THE DELINIATION FOR WHERE NEAR SEVERE WINDS COULD MIX DOWN AND WHERE PRECIPITATION DRIED UP...AND THAT HAPPENED TO BE RIGHT AROUND THE CAPITAL DISTRICT AND POINTS SOUTH. REFLECTIVITIES ARENT VERY IMPRESSIVE...BUT SUBSIDENCE ASSOCIATED WITH PASSAGE OF COLD FRONT AND STRONG ADVANCE OF SURFACE DEW POINT BOUNDARY HELPED LINE OF SHOWERS AND A RUMBLE OF THUNDER TO DEVELOP AND WINDS TO MIX DOWN. ONCE EVERYTHING EXITS...DRYING AND COOLING EVERYWHERE...EXCEPT AREAS WHERE LAKE EFFECT RAIN AFFECTS...IN NORTHWESTERN AREAS. WILL ADJUST FORECAST BASED ON TRENDS. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/... LARGE CANADIAN HIGH PRESSURE SYSTEM WILL CONTROL OUR WEATHER THROUGH THE WEEKEND WITH UNSEASONABLY COOL TEMPS AND DRY WEATHER. LOWS TONIGHT NOT TOO LOW DUE TO VORT MAX/CLOUDS AND SHOWERS MOVING THROUGH...BUT LOW SATURDAY NIGHT WILL LIKELY DIP INTO THE UPPER AND POSSIBLY MID 30S ACROSS MOST HIGH TERRAIN AREAS...AND THE LOW TO MID 40S MOST OTHER AREAS. HIGHS SATURDAY...DESPITE MOSTLY TO PARTLY SUNNY SKIES WILL ONLY REACH THE 60S TO LOW 70S IN MOST LOCATIONS...WITH SOME HIGH TERRAIN LOCATIONS ONLY IN THE UPPER 50S. THE VORT MAX AND COLD POOL WILL BE WELL EAST OF THE REGION BY 12Z SATURDAY SO HAVE NOT INCLUDED ANY DIURNAL AFTERNOON SHOWER ACTIVITY...EVEN ACROSS HIGH TERRAIN PLACES. HIGHS SUNDAY ONLY A COUPLE TO A FEW DEGREES WARMER AS THE SURFACE HIGH REMAINS TO OUR NORTH...AND LITTLE WARM ADVECTION AROUND IT IS NOTED OVER THE FORECAST AREA. BY SUNDAY NIGHT AND MONDAY THE WARM FRONT TO OUR SOUTH WILL BEGIN TO SLOWLY ADVANCE NORTH. THIS WILL RESULT IN A SLOW INCREASE IN CLOUDS AND CHANCE POPS FOR SOUTHERN AREAS LATE SUNDAY NIGHT AND MONDAY. STILL NOT MUCH WARMING FOR MONDAY AS ANY WARM ADVECTION IS CONTERACTED BY GREATER CLOUDINESS. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... THE WARM FRONT DISCUSSED ABOVE WILL TAKE UNTIL WEDNESDAY NIGHT BEFORE IT FINALLY CROSSES THE ENTIRE FORECAST AREA. SO TEMPS WILL SLOWLY RECOVER TO NEAR NORMAL BY WEDNESDAY WITH A CHANCE OF SHOWERS/TSTMS IN THE FORECAST MONDAY NIGHT THROUGH WEDNESDAY NIGHT DUE TO THE WARM FRONT. AFTER THE WARM FRONTAL PASSAGE...THURSDAY AND FRIDAY WILL LIKELY SEE A RETURN TO FULL SUMMER HEAT AND HUMIDITY ACROSS THE ENTIRE FORECAST AREA. WILL KEEP A LOW CHANCE OR SLIGHT CHANCE OF SHOWERS/TSTMS THURSDAY AND FRIDAY...BUT THIS ACTIVITY WILL BE DIURNALLY BASED AND CONFINED MAINLY TO THE AFTN/EVE HOURS. && .AVIATION /02Z SATURDAY THROUGH WEDNESDAY/... LINE OF SHOWERS AND STORMS WILL PRODUCE BRIEF MVFR AND IFR CONDITIONS POTENTIALLY TO GFL AND ALB BEFORE 10 PM. CEILINGS AND VISIBILITIES WILL BE BRIEFLY MVFR/IFR...AND WINDS COULD GUST TO AROUND 35 KT. BY MIDNIGHT...MOST AREAS SHOULD BE CLEARING...AND REMAIN VFR THROUGH THE REST OF THE NIGHT AS LIGHT NORTHWEST WINDS PREVAIL. VFR CONTINUES TOMORROW WITH UNRESTRICTED CEILINGS AND GUSTY WINDS FROM THE NORTH AND NORTHWEST AT 15 TO 20 KT. SUN...VFR. MON...VFR/MVFR...CHANCE OF SHOWERS IN THE SOUTH. TUE...MVFR...CHANCE OF SHOWERS. WED...MVFR...CHANCE OF SHOWERS/TSTMS. && .HYDROLOGY... NO HYDRO PROBLEMS EXPECTED. RIVER FLOWS REMAINS AT BELOW NORMAL TO NORMAL LEVELS. AN UPPER LEVEL DISTURBANCE WILL PRODUCE LIGHT QPF AMOUNTS LESS THAN A TENTH OF AN INCH NORTH AND WEST OF THE CAPITAL REGION OVERNIGHT. AN UNSEASONABLY COOL AND DRY AIR MASS WILL IMPACT THE REGION INTO EARLY NEXT WEEK. && .ALY WATCHES/WARNINGS/ADVISORIES... CT...NONE. NY...NONE. MA...NONE. VT...NONE. && SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM... AVIATION... HYDROLOGY...
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ALBANY NY 353 PM EDT FRI AUG 17 2007 CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066- 082>084-VTZ013>015-181100- NORTHERN LITCHFIELD-SOUTHERN LITCHFIELD-NORTHERN BERKSHIRE- SOUTHERN BERKSHIRE-NORTHERN HERKIMER-HAMILTON-SOUTHERN HERKIMER- SOUTHERN FULTON-MONTGOMERY-NORTHERN SARATOGA-NORTHERN WARREN- NORTHERN WASHINGTON-SCHOHARIE-WESTERN SCHENECTADY- EASTERN SCHENECTADY-SOUTHERN SARATOGA-WESTERN ALBANY-EASTERN ALBANY- WESTERN RENSSELAER-EASTERN RENSSELAER-WESTERN GREENE-EASTERN GREENE- WESTERN COLUMBIA-EASTERN COLUMBIA-WESTERN ULSTER-EASTERN ULSTER- WESTERN DUTCHESS-EASTERN DUTCHESS-NORTHERN FULTON-SOUTHEAST WARREN- SOUTHERN WASHINGTON-BENNINGTON-WESTERN WINDHAM-EASTERN WINDHAM- 353 PM EDT FRI AUG 17 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWESTERN CONNECTICUT...WESTERN MASSACHUSETTS...EAST CENTRAL NEW YORK AND SOUTHERN VERMONT. .DAY ONE...TONIGHT. THERE IS THE CHANCE OF A NON SEVERE THUNDERSTORM ACROSS THE REGION UNTIL AROUND MIDNIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THERE IS A CHANCE FOR THUNDERSTORMS MONDAY NIGHT INTO WEDNESDAY AS A WARM FRONT APPROACHES FROM THE SOUTHWEST. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. WWW.WEATHER.GOV/ALBANY
The Albany radar (KENX), 73 km away, was scanning. The volume nearest the first event began at 02:20 UTC.
2 thunderstorm wind. Local standard time, as filed.
Multiple trees were reported down in Great Barrington due to strong thunderstorm winds.
Two small trees were reported down due to strong thunderstorm winds in Otis. One tree was estimated at approximately 2 feet in diameter.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Massachusetts in 2007Every state in 2007This day in weather historyWarnings in Massachusetts, August 2007
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: 52853, 52854.