A couple of severe thunderstorms occurred during the late afternoon hours of Thursday, August 19th ahead of an approaching cold front and upper level disturbance.
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 ALY wrote it up.
A couple of severe thunderstorms occurred during the late afternoon hours of Thursday, August 19th ahead of an approaching cold front and upper level disturbance.
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 19, 3:07 PM EST, 1 hour 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ALBANY NY 407 PM EDT THU AUG 19 2010 .SYNOPSIS... A COLD FRONT WILL PASS THROUGH THE REGION TONIGHT...BRINGING ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS. HIGH PRESSURE WILL BUILD IN FROM SOUTHEASTERN ONTARIO AND THE EASTERN GREAT LAKES REGION ON FRIDAY...AND MOVE OVERHEAD ON SATURDAY. THE HIGH WILL PROVIDE MAINLY CLEAR SKIES...SEASONABLY COOL TEMPERATURES...AND DRY CONDITIONS. UNSETTLED WEATHER WILL LIKELY RETURN ON SUNDAY AS LOW PRESSURE APPROACHES FROM THE GREAT LAKES. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/... AS OF 345 PM...SOMEWHAT COMPLEX CONVECTIVE SETUP EVOLVING LATE THIS AFTERNOON INTO THIS EVENING. A PRE-FRONTAL TROF HAS TRIGGERED ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS MAINLY ACROSS THE MOHAWK VALLEY AND SOUTHERN ADIRONDACKS. A FEW OF THESE STORMS HAVE BECOME STRONG AND MAY PRODUCE GUSTY WINDS AND SMALL HAIL...BUT ARE NOT EXPECTED TO REACH SEVERE LEVELS. A RATHER POTENT AND ORGANIZED LINE OF STORMS ARE RACING EASTWARD FROM CENTRAL LAKE ONTARIO NORTHWARD INTO EASTERN ONTARIO AHEAD OF THE MAIN COLD FRONT. THE HIGHEST REFLECTIVITY ASSOCIATED WITH A BOWING SEGMENT IS APPROACHING THE ST LAWRENCE RIVER VALLEY AND SHOULD MISS OUR AREA. THE SOUTHERN END OF THIS SOLID LINE OF CONVECTION HAS BEEN SHOWING SOME SIGNS OF WEAKENING DUE TO THE UPPER LEVEL ENERGY PIVOTING TO THE NORTHEAST AS THE UPPER TROF BECOMES NEGATIVELY TILTED. AT LEAST A BROKEN LINE MAY MAKE IT INTO THE WESTERN ADIRONDACKS LATE THIS AFTERNOON. THIS ACTIVITY IS NOT EXPECTED TO BE SEVERE DUE TO WEAK MID LEVEL LAPSE RATES AND THE UPPER LEVEL SUPPORT SHIFTING NORTHWARD. 1900Z ANALYSIS SHOWS MODEST SBCAPE OF 500-1000 J/KG ACROSS THE AREA WITH A FEW POCKETS NEAR 1500...SO WILL CONTINUE TO MENTION ISOLATED TO SCATTERED THUNDER THROUGH THIS EVENING...WITH THE BEST CHANCE FROM THE CAPITAL REGION NORTH AND WEST. DEEP LAYER SHEAR WILL INCREASE TO AROUND 30 KT...BUT STILL RATHER MARGINAL FOR ORGANIZATION...ESPECIALLY WITH WANING INSTABILITY THIS EVENING. AS THE UPPER LEVEL TROF CONTINUES TO PIVOT IN A NORTHEAST DIRECTION AWAY FROM OUR AREA...EXPECTING LOWER COVERAGE OF CONVECTION EVEN AS THE COLD FRONT MOVES ACROSS AREAS SOUTHEAST OF THE CAPITAL REGION. AFTER 06Z...WILL MENTION JUST SLIGHT CHANCE OF A LEFTOVER SHOWER AND THE REMNANTS OF THE COLD FRONT PUSH THROUGH. && .SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/... AS OF 400 PM...HIGH PRESSURE WILL BUILD IN ACROSS THE AREA ON FRIDAY...WITH PWATS DROPPING TO BELOW NORMAL LEVELS THROUGH THE DAY. A REFRESHING N-NW BREEZE WILL USHER IN THE DRIER AIR MASS. SURFACE DEWPOINTS SHOULD DROP THROUGH THE 50S IN MOST AREAS...WITH PLENTY OF SUNSHINE. EXPECTING MAX TEMPS TO BE GENERALLY IN THE UPPER 70S IN THE VALLEYS...EXCEPT LOWER 80S IN THE MID HUDSON VALLEY. MAINLY CLEAR SKIES AND CALM WINDS FRIDAY NIGHT WILL SET UP FOR GOOD RADIATIONAL COOLING CONDITIONS AND TEMPS SHOULD RESPOND BY DROPPING INTO THE UPPER 30S TO LOWER 40S IN PORTIONS OF THE ADIRONDACKS...WITH MID 40S TO LOWER 50S ELSEWHERE. AFTER COOL START TO SATURDAY...TEMPS SHOULD REBOUND NICELY AS A RETURN SOUTHERLY FLOW DEVELOPS AROUND THE DEPARTING HIGH. SOME HIGH AND POSSIBLY MID LEVEL CLOUDS MAY INCREASE LATE IN THE DAY...BUT A PLEASANT DAY WITH SLIGHTLY WARMER THAN NORMAL TEMPS ANTICIPATED. THE NEXT CHANCE OF RAIN ARRIVES LATE SATURDAY NIGHT INTO SUNDAY MORNING...AS AN UPPER TROF ADVANCES EASTWARD ACROSS THE GREAT LAKES. SOME DIFFERENCES IN TERMS OF TIMING OF WHEN PRECIP BEGINS...ALTHOUGH MOST SOURCES OF GUIDANCE SUGGEST THE BULK OF THE RAINFALL WILL HOLD OFF UNTIL LATER SUNDAY. IN TERMS OF THE EVOLUTION OF THE SYSTEM...MODELS DIFFER WITH REGARDS TO THE UPPER LEVEL PATTERN. THE NAM/ECMWF SHOW THE UPPER LOW CLOSING OFF ACROSS SOUTHERN QUEBEC BY LATE SUNDAY...WHILE THE GFS/GGEM KEEP THE UPPER TROF OPEN AND POSITIVELY TILTED. THE EVENTUAL CHARACTER OF HOW THE UPPER SYSTEM DEVELOPS WILL PLAY A SIGNIFICANT ROLE IN WHICH AREAS POSSIBLY RECEIVE HEAVIER QPF. PWATS ARE FORECAST TO SURGE TO 1.75 INCHES WHICH IS AROUND +2 STDEV. IN TERMS OF SENSIBLE WEATHER...WILL MENTION LIKELY POPS ACROSS WESTERN AREAS SUNDAY AFTERNOON...WITH CHANCE FARTHER EAST. NEARLY OVC SKIES AND THE THREAT OF RAIN WILL LEAD TO COOLER MAX TEMPS MAINLY IN THE 70S. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... POPULATED WITH MOS GUIDANCE. HPC THINKING FOLLOWS GFS FAIRLY CLOSELY...EVEN MORE SO WITH A MID-WEEK COLD FRONTAL PASSAGE. ECMWF'S DEVELOPMENT OF A COASTAL LOW MOVING UP OUR WAY INSTEAD OF OUT TO SEA HAS BEEN LARGELY DISMISSED. IT ALSO UNDERDOES THE MID-WEEK FRONTAL PASSAGE DUE TO THIS FEATURE. GREATEST CHANCE POPS ARE AT THE START OF THE PERIOD AS THE LOW PASSES ACROSS NEW YORK STATE SUNDAY NIGHT. MEASURABLE PRECIP IS A GOOD BET. INSTABILITY IS ONLY MARGINAL...WITH CAPES MOSTLY UNDER 1000 J/KG DURING THE PEAK POPS OF SUNDAY NGT/MONDAY AND WED. HAVE CARRIED CHC TSTMS FOR THESE PERIODS. MOST NOTICEABLE CHANGE WILL BE TEMPERATURES. THE COOLEST AIR IN SOME TIME...ALTHOUGH AS HOT AS THE SUMMER'S BEEN IT ISN'T REALLY SAYING MUCH...WILL BE ARRIVING AT MID-WEEK. HIGHS IN THE 70S ON MONDAY WILL WARM TO THE UPPER 70S AND LOWER 80S ON TUESDAY...WITH RAIN-COOLING KEEPING TUESDAY SLIGHTLY COOLER. BY THURSDAY...HIGHS WILL RANGE FROM ONLY AROUND 70S DEGREES IN THE MOUNTAINS...TO NEAR 80 DEGREES IN THE MID HUDSON VALLEY. LOWS SUNDAY NIGHT THROUGH TUESDAY NIGHT WILL BE MOSTLY IN THE 50S AND LOWER 60S. WEDNESDAY NIGHT LOWS WILL RANGE FROM AROUND 50 DEGREES IN THE MOUNTAINS TO MAINLY THE UPPER 50S IN THE VALLEYS. && .AVIATION /20Z THURSDAY THROUGH TUESDAY/... PREFRONTAL TROUGH PRODUCING SOME TCU AND ISOLD SHOWERS IN EAST CENTRAL NY AS OF 20Z/THU. A STRAY SHOWER OR STORM MAY MAKE IT INTO THE HUDSON VALLEY LATER THIS AFTERNOON. HAVE INCLUDED VCSH AT KGFL AND KALB. OTHERWISE...VCSH AND CB EXPECTED FROM COLD FRONT MOVING SE ACROSS NY THIS EVENING INTO OVERNIGHT. BEHIND THE FRONT...CLOUDS WILL DISSIPATE AND WINDS WILL GRADUALLY SUBSIDE. KGFL MAY HAVE MVFR MIST DEVELOP EARLY FRIDAY MORNING...RECOVERING TO VFR AFTER 12Z. FRIDAY...MOSTLY SUNNY SKIES AND VFR CONDITIONS WILL PREVAIL AS HIGH PRESSURE BUILDS IN OVER THE REGION. S TO WSW WINDS AT 5-10KTS THIS AFTERNOON WILL DECREASE TO 3-6KTS THIS EVENING. WINDS WILL INCREASE OUT OF THE N TO NW AT 5-10KTS LATE FRIDAY MORNING. OUTLOOK... FRI-SAT...VFR...NO SIG WX. SAT NGT-MON...VFR/MVFR...CHC -SHRA. TUE...VFR...NO SIG WX. && .FIRE WEATHER... A COLD FRONT WILL BRING ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON THROUGH THIS EVENING. HOWEVER...A WIDESPREAD SOAKING RAINFALL IS NOT ANTICIPATED. RAINFALL WILL BE VARIABLE FROM THE ISOLATED THUNDERSTORMS. A FEW SPOTS MAY RECEIVE OVER ONE HALF INCH OF RAIN. HIGH PRESSURE WILL BUILD IN FRIDAY MORNING...AND WILL LAST INTO SATURDAY EVENING WITH DRY WEATHER. THE RELATIVE HUMIDITY WILL INCREASE TO AROUND 90 TO 100 PERCENT...THEN DROP TO BETWEEN 30 AND 40 PERCENT FRIDAY AFTERNOON AS A DRIER AIR MASS MOVES IN. RH VALUES WILL RISE TO AROUND 85 TO 100 PERCENT FRIDAY NIGHT. WINDS TONIGHT WILL BE WEST-NORTHWEST AROUND 5 MPH...SHIFTING TO THE NORTH-NORTHWEST AROUND 5 TO 10 MPH ON FRIDAY. WINDS WILL BE LIGHT AND VARIABLE FRIDAY NIGHT. && .HYDROLOGY... NO WIDESPREAD HYDRO PROBLEMS ARE ANTICIPATED THE NEXT 5 DAYS. RIVER FLOWS ARE GENERALLY BELOW NORMAL FOR LATE AUGUST AT THIS TIME. THIS EVENING INTO TONIGHT...A COLD FRONT WILL BRING ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS...WHICH WILL HAVE LITTLE IMPACT ON THE MAIN STEM RIVERS. SOME ISOLATED SPOTS MAY RECEIVE ONE HALF TO ONE INCH OF RAIN. HIGH PRESSURE WILL BRING DRY WEATHER FROM FRIDAY INTO SATURDAY NIGHT. A MUCH NEEDED SOAKING RAINFALL MAY OCCUR FROM SUNDAY INTO EARLY NEXT WEEK ASSOCIATED WITH AN OCCLUDING AREA OF LOW PRESSURE APPROACHING FROM THE EASTERN GREAT LAKES REGION THAT MAY CUTOFF TO OUR SOUTH. ISOLATED HEAVY RAINFALL AMOUNTS WILL BE POSSIBLE DEPENDING ON THE EVENTUAL EVOLUTION OF THE SYSTEM. SOME NOTABLE RISES ARE LIKELY ON STREAMS AND RIVERS...BUT THE POTENTIAL FOR WIDESPREAD FLOODING IS LOW AT THIS TIME. WITH THE RAIN FALLING OVER TWO OR THREE DAYS...MUCH OF IT WILL SOAK INTO THE GROUND. FOR DETAILS ON SPECIFIC AREA RIVERS AND LAKES...INCLUDING OBSERVED AND FORECAST RIVER STAGES AND LAKE ELEVATIONS...PLEASE VISIT THE ADVANCED HYDROLOGIC PREDICTION SERVICE /AHPS/ GRAPHS ON OUR WEBSITE. && .ALY WATCHES/WARNINGS/ADVISORIES... CT...NONE. NY...NONE. MA...NONE. VT...NONE. && SYNOPSIS...JPV NEAR TERM...JPV SHORT TERM...JPV LONG TERM...ELH AVIATION...KGM FIRE WEATHER...JPV HYDROLOGY...JPV
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ALBANY NY 425 PM EDT THU AUG 19 2010 CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066- 082>084-VTZ013>015-201100- 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- 425 PM EDT THU AUG 19 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWESTERN CONNECTICUT...WESTERN MASSACHUSETTS...EAST CENTRAL NEW YORK AND SOUTHERN VERMONT. .DAY ONE...TONIGHT. ISOLATED TO SCATTERED THUNDERSTORMS WILL OCCUR THROUGH THIS EVENING AHEAD OF A COLD FRONT APPROACHING FROM THE GREAT LAKES. THE THUNDERSTORMS ARE NOT LIKELY TO BECOME SEVERE. SOME OF THE STRONGER STORMS COULD PRODUCE WIND GUSTS AROUND 45 MPH AND SMALL HAIL. THE GREATEST COVERAGE OF THUNDERSTORMS WILL BE FROM THE CAPITAL REGION NORTH AND WEST. INDIVIDUAL THUNDERSTORMS WILL GENERALLY TRACK FROM WEST TO EAST AROUND 20 TO 30 MPH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. THERE IS A CHANCE OF THUNDERSTORMS FROM SUNDAY AFTERNOON THROUGH MONDAY...AND AGAIN ON WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 401 PM EDT THU AUG 19 2010 NYZ038-040-047-192045- SCHOHARIE NY-SOUTHERN HERKIMER NY-MONTGOMERY NY- 401 PM EDT THU AUG 19 2010 ...A STRONG THUNDERSTORM IN EXTREME NORTHWESTERN SCHOHARIE COUNTY IN EAST CENTRAL NEW YORK... SOUTHEASTERN HERKIMER COUNTY IN EASTERN NEW YORK... WESTERN MONTGOMERY COUNTY IN EASTERN NEW YORK... THIS INCLUDES THE CITY OF CANAJOHARIE... AT 359 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...WINDS TO AROUND 50 MPH. THIS STORM WAS LOCATED NEAR JORDANVILLE...AND MOVING EAST AT 35 MPH. THE THUNDERSTORM WILL BE NEAR... FORT PLAIN BY 430 PM EDT AMES AND CANAJOHARIE BY 435 PM EDT IN ADDITION TO LARGE HAIL AND STRONG WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. OKEEFE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 501 PM EDT THU AUG 19 2010 NYZ040-047-048-192145- SCHOHARIE NY-WESTERN SCHENECTADY NY-MONTGOMERY NY- 501 PM EDT THU AUG 19 2010 ...A STRONG THUNDERSTORM IN SOUTHWESTERN SCHENECTADY COUNTY IN EAST CENTRAL NEW YORK... NORTHERN SCHOHARIE COUNTY IN EAST CENTRAL NEW YORK... THIS INCLUDES THE CITY OF COBLESKILL... SOUTH CENTRAL MONTGOMERY COUNTY IN EASTERN NEW YORK... AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING...WINDS AROUND 50 MPH. THIS STORM WAS LOCATED NEAR SHARON SPRINGS...OR ABOUT 8 MILES SOUTH OF CANAJOHARIE...AND MOVING EAST AT 25 MPH. THE THUNDERSTORM WILL BE NEAR... 7 MILES NORTH OF COBLESKILL BY 510 PM EDT CENTRAL BRIDGE AND 6 MILES NORTH OF SCHOHARIE BY 530 PM EDT DELANSON BY 545 PM EDT
The Albany radar (KENX), 29 km away, was scanning. The volume nearest the first event began at 21:24 UTC.
3 thunderstorm wind. Local standard time, as filed.
Numerous large trees were reported down and uprooted along Route 30A near the intersection of Route 20 in Sloansville due to strong thunderstorn winds.
Trees and wires were reported down in the Towns of Carlisle and Esperance due to strong thunderstorm winds.
One tree was reported down on Avon Place in Albany due to strong thunderstorm winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2010Every state in 2010This day in weather historyWarnings in New York, August 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: 256225, 256226, 256224.