A warm, humid and unstable airmass was in place across the region with a cold front approaching from the Great Lakes Region. An upper level disturbance moved over the mid and lower Hudson Valley Monday evening, August 10th, triggering scattered severe thunderstorms across Ulster and Dutchess counties.
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 warm, humid and unstable airmass was in place across the region with a cold front approaching from the Great Lakes Region. An upper level disturbance moved over the mid and lower Hudson Valley Monday evening, August 10th, triggering scattered severe thunderstorms across Ulster and Dutchess counties.
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 10, 6:47 PM EST, 34 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ALBANY NY 747 PM EDT MON AUG 10 2009 .SYNOPSIS... A WARM AND HUMID AIR MASS WILL REMAIN OVER THE REGION THROUGH TUESDAY. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED LATE THIS AFTERNOON AND EARLY THIS EVENING...BEFORE A COLD FRONT CROSSES THE AREA ON TUESDAY. IN THE WAKE OF THE COLD FRONT...DRIER WEATHER IS EXPECTED WEDNESDAY AND THURSDAY. && .NEAR TERM /THROUGH TONIGHT/... THE STORM PREDICTION CENTER HAS PUT ALL OF OUR AREA IN A SLIGHT RISK FOR SEVERE WEATHER THIS AFTERNOON INTO TONIGHT. AS OF 330 PM...THUNDERSTORMS HAD DEVELOPED ALONG LAKE BREEZE BOUNDARIES BETWEEN LAKES ERIE AND ONTARIO. MID-LEVEL CAP FORECAST TO ERODE FROM WEST TO EAST THIS EVENING SO AS STORMS GET GOING THIS AFTERNOON OVER WESTERN NY...THEY SHOULD PROGRESS FROM WEST NORTHWEST TO EAST SOUTHEAST ACROSS CENTRAL NEW YORK TOWARDS MID HUDSON VALLEY. COLD FRONT APPEARS TO PUSH THROUGH IN TWO PARTS. THE FIRST PUSH WILL BE FORCING FOR THUNDERSTORMS THIS EVENING. SECOND PUSH OF COOLER AIR WILL BE FORCING FOR THUNDERSTORMS ON TUESDAY. 250 MB JET AXIS WELL NORTH OF AREA TODAY SO JET DYNAMICS ARE LACKING. RUC ANAL SHOWS SBCAPES AROUND 2000 J/KG SO PLENTY OF INSTABILITY AROUND THIS AFTERNOON FOR THUNDERSTORMS TO WORK WITH. SOME SEVERE WINDS ARE POSSIBLE WITH LOCALLY HEAVY RAINFALL...AS PWATS ARE AROUND 1.75. THE DEEP SHEAR IS 30-40 KTS WITH UNIDIRECTIONAL W/NW FLOW ABOVE THE BOUNDARY LAYER. AGAIN...THE BEST ORGANIZED CONVECTIVE LINE/CLUSTER LOOKS TO BE POTENTIALLY EVE/OVERNIGHT PERIOD. SBCAPE DIMINISHES SUBSTANTIALLY TOWARD DAWN BEFORE INCREASING AGAIN AFTER SUNRISE TOMORROW. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... FOR TUESDAY...AREAS SOUTH AND EAST OF ALBANY ARE IN A SLIGHT RISK FOR SEVERE WEATHER. AREAS THAT SEE SUNSHINE TOMORROW WILL SEE SBCAPES RISE INTO THE 2000 J/KG RANGE AGAIN AHEAD OF FRONT. ISOLATED SEVERE POSSIBLE AGAIN SOUTH AND EAST OF KALB WITH WINDS THE PRIMARY THREAT. TOMORROW...WE ARE IN FAVORABLE RIGHT ENTRANCE REGION OF 250 MB JET SO DYNAMICS FAVOR BETTER CHANCE FOR SEVERE WX. BY WEDNESDAY THE FRONT HAS MOVED SOUTH OF AREA BUT COOL UPPER TROUGH LINGERS. SOME AFTERNOON SHOWERS POSSIBLE OVER HIGHER TERRAIN ON WEDNESDAY. SHORT TERM FORECAST TEMPS GENERALLY SIDED ON THE LOWER END OF MOS FOR HIGHS AND THE UPPER END OF MOS FOR LOWS AS DIURNAL RANGE TYPICALLY SMALLER IN HUMID AIRMASS. && .LONG TERM /THURSDAY THROUGH MONDAY/... THIS WILL BE A PRETTY DRY STRETCH WITH HIGH PRESSURE OVER US SANDWICHED BETWEEN TWO STATIONARY FRONTS. THE BEST CHANCE FOR ANY PRECIPITATION WILL BE ON SUNDAY AS A WEAK WAVE OF LOW PRESSURE MOVES OFF CAPE HATTERAS. ADDITIONALLY...THE GFS DEVELOPS A WEAK SURFACE AND MID-LEVEL TROF ACROSS THE OHIO VALLEY TO VIRGINIA...AND ATTEMPTS TO LIFT MEASURABLE PRECIP INTO OUR SOUTHERN ZONES. THE SENTIMENTS OF THIS SCENARIO ARE NOT SHARED BY THE ECMWF...WHICH DEPICTS AN ABSENCE OF THIS TROF. GIVEN THIS KIND OF UNCERTAINTY...HAVE CHOSEN TO GO WITH THE HPC SOLUTION ON POPS WITH SOME DAMPING BACK OF SOME AREAS SOME PERIODS FROM SLGT CHC TO NO PRECIP. PLENTIFUL SUNSHINE WILL HELP LIFT DAYTIME HIGH TEMPERATURES TO SOME OF THE WARMEST OF THE SEASON. THE HPC VALUES LOOK TO WORK QUITE WELL. READINGS IN THE 80S...SLIGHTLY COOLER IN THE HIGH PEAKS... WILL AVERAGE AROUND 5 DEGREES ABOVE NORMAL. 12Z MEX HIGHS...WHICH GIVE 88 FOR A HIGH AT ALBANY ON FRIDAY AND SATURDAY MAY BE A BIT OVERDONE...BUT ARE CLOSE TO WHAT WE HAVE. OVERNIGHT LOWS PRIMARILY FROM THE UPPER 50S TO MID 60S ALSO AVERAGE AROUND 5 DEGREES BELOW NORMAL. && .AVIATION /00Z TUESDAY THROUGH SATURDAY/... SHOWERS AND THUNDERSTORMS COMING IN FROM CENTRAL NEW YORK WERE FALLING APART AS DAYTIME HEATING HAD BEEN LOST UNDER A WIDE CANOPY OF BLOW OFF AC AND CI SINCE MID-AFTERNOON...AS DEPICTED BY SATELLITE IMAGERY. ANY REMNANT SHOWERS ARE COVERED WITH VCSH AT BOTH GFL AND ALB THIS EVENING...WHEREAS AT POU...INSTABILITY IS STILL HIGH ENOUGH THAT ACTIVITY MOVING IN FROM BINGHAMTONS AREA MIGHT PERSIST. THUS...HANDLED THEIR SITUATION WITH VCTS AND A 00-03 TEMPO GROUP FOR SHOWERS AND MVFR. MORE SHOWERS MOVING IN OFF LAKE ONTARIO WITH A RATHER DIFFUSE COLD FRONT ARE ALSO UNLIKELY TO HOLD UP DUE TO INCREASING STABILITY. THUS HAVE HANDLED THE REMAINDER OF THE OVERNIGHT WITH VCSH AS WELL... WHICH WILL LIKELY BE MVFR MAINLY FOR FOG...AT POU MAYBE FOR CIG AS WELL. A RETURN TO VFR BY 12-14Z ON TUESDAY...BUT LOW-LEVEL COLD POOLING IS SUGGESTING WE MAY SQUEEZE OUT SOME AFTERNOON SPRINKLES AT GFL...HANDLED AGAIN WITH VCSH. OUTLOOK... TUE NGT...VFR/MVFR/LOCALLY IFR FOG...NO SIG WX. WED-WED NGT...VFR...XCP MVFR/IFR AM FOG POSSIBLE. NO SIG WX. THU-SAT...MAINLY VFR...NO WX. && .FIRE WEATHER... AFTERNOON SHOWERS AND THUNDERSTORMS ARE EXPECTED TONIGHT AND TUESDAY BEFORE A COLD FRONT CROSSES THE AREA ON TUESDAY. IN THE WAKE OF THE COLD FRONT...DRIER WEATHER IS EXPECTED FOR THE MIDDLE OF THE WEEK. MINIMUM RELATIVE HUMIDITY VALUES TODAY WILL INCREASE TO NEAR 100 PERCENT TONIGHT. RH VALUES WILL DROP TO AROUND 55 TO 70 PERCENT TUESDAY AFTERNOON. RH VALUES WILL RISE TO 90-100 PERCENT AGAIN BY WEDNESDAY MORNING. WINDS TONIGHT WILL BE WEST AND WEAKEN TO LESS THAN 10 MPH...AND BE 10 MPH OR LESS FROM THE WEST TO NORTHWEST ON TUESDAY AND WEDNESDAY. && .HYDROLOGY... A WARM AND HUMID AIR MASS WILL BE OVER THE HYDRO SERVICE AREA /HSA/ THROUGH TUESDAY. PRECIPITABLE WATER VALUES WILL GENERALLY BE IN THE 1.5-2.0 RANGE. SCATTERED STRONG TO POTENTIALLY SEVERE THUNDERSTORMS WILL BE POSSIBLE LATE TODAY INTO TUESDAY. SOME LOCALLY HEAVY DOWNPOURS WILL BE POSSIBLE. THE STORMS SHOULD MOVE QUICKLY...BUT A QUICK INCH OR SO OF RAIN MAY BE POSSIBLE IN AN HOUR. LOCALIZED HEAVY RAINFALL WILL STILL BE POSSIBLE...AND IT WILL CAUSE SHARP RISES ON CREEKS AND SMALLER RIVERS...AND MINOR FLOODING OF ROADS AND POOR DRAINAGE AREAS. WE ARE NOT EXPECTING ANY FLOOD PROBLEMS ON THE MAIN STEM RIVERS DUE TO THE FAIRLY DRY CONDITIONS OVER THE PAST WEEK...AS RIVERS ARE AT NEAR NORMAL LEVELS IN THE ALBANY HSA FOR EARLY TO MID AUGUST. AN APPROACHING COLD FRONT IS LIKELY TO SET OFF MORE SHOWERS AND THUNDERSTORMS...AS IT MOVES ACROSS THE AREA TUESDAY AFTERNOON. DRIER CONDITIONS ARE EXPECTED FOR THE MIDDLE OF THE WEEK INTO THE WEEKEND ...AS HIGH PRESSURE BUILDS IN. 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...SND/WASULA NEAR TERM...SND/WASULA SHORT TERM...SND LONG TERM...ELH AVIATION...ELH FIRE WEATHER...SND HYDROLOGY...WASULA
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ALBANY NY 528 PM EDT MON AUG 10 2009 CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066- 082>084-VTZ013>015-111100- 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- 528 PM EDT MON AUG 10 2009 ...SEVERE THUNDERSTORM WATCH 696 IN EFFECT UNTIL 11 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWESTERN CONNECTICUT...WESTERN MASSACHUSETTS...EAST CENTRAL NEW YORK AND SOUTHERN VERMONT. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THERE IS A CONTINUED CHANCE FOR THUNDERSTORMS ON TUESDAY. ON TUESDAY...SOME THUNDERSTORMS COULD BE SEVERE...MAINLY SOUTH AND EAST OF ALBANY NEW YORK. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE ACTIVATED FOR THE FOLLOWING COUNTIES... LITCHFIELD...BERKSHIRE...ALBANY...COLUMBIA...DUTCHESS...FULTON... GREENE...HAMILTON...HERKIMER...MONTGOMERY...RENSSELAER...SARATOGA... SCHENECTADY...SCHOHARIE...ULSTER...WARREN...WASHINGTON...BENNINGTON...AND WINDHAM WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BASED ON PROCEDURES OUTLINED IN SKYWARN TRAINING. OKEEFE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 528 PM EDT MON AUG 10 2009 NYZ033-038-039-082-102200- HAMILTON NY-SOUTHERN HERKIMER NY-SOUTHERN FULTON NY- NORTHERN FULTON NY- 528 PM EDT MON AUG 10 2009 ...A STRONG THUNDERSTORM IN NORTHWESTERN FULTON COUNTY IN EASTERN NEW YORK... SOUTHWESTERN HAMILTON COUNTY IN EASTERN NEW YORK... SOUTHERN HERKIMER COUNTY IN EASTERN NEW YORK... AT 528 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING...FREQUENT LIGHTNING...AND HEAVY RAIN. THIS STORM WAS LOCATED 17 MILES SOUTHWEST OF POLAND...OR ABOUT 7 MILES WEST OF UTICA...AND MOVING EAST AT 40 MPH. THE THUNDERSTORM WILL BE NEAR... NEWPORT...POLAND AND COLD BROOK BY 555 PM EDT MIDDLEVILLE BY 600 PM EDT SNYDER
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 613 PM EDT MON AUG 10 2009 NYZ032-038-102245- NORTHERN HERKIMER NY-SOUTHERN HERKIMER NY- 613 PM EDT MON AUG 10 2009 ...STRONG THUNDERSTORMS MOVING INTO SOUTHERN HERKIMER COUNTY IN EASTERN NEW YORK... THIS INCLUDES THE CITIES OF...LITTLE FALLS...ILION...HERKIMER... AT 609 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING HEAVY RAIN. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 17 MILES NORTHWEST OF NORTHWOOD TO NEWPORT TO FRANKFORT...OR ALONG A LINE EXTENDING FROM 16 MILES NORTHWEST OF HINCKLEY TO 9 MILES NORTH OF HERKIMER TO ILION...AND MOVING EAST AT 20 MPH. THUNDERSTORMS WILL BE NEAR... POLAND...NEWPORT AND ILION BY 620 PM EDT MOHAWK...MIDDLEVILLE...HERKIMER AND COLD BROOK BY 625 PM EDT NORTHWOOD BY 635 PM EDT OHIO BY 640 PM EDT LITTLE FALLS BY 645 PM EDT THESE STORMS WILL PRODUCE ONE HALF TO ONE INCH OF RAINFALL IN A SHORT AMOUNT OF TIME. THIS WILL RESULT IN PONDING OF WATER ON ROADS AND OTHER POOR DRAINAGE LOCATIONS. SNYDER/JPV
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 642 PM EDT MON AUG 10 2009 NYZ032-033-038-039-082-102315- HAMILTON NY-NORTHERN HERKIMER NY-SOUTHERN HERKIMER NY- SOUTHERN FULTON NY-NORTHERN FULTON NY- 642 PM EDT MON AUG 10 2009 ...STRONG THUNDERSTORMS IN NORTHWESTERN FULTON COUNTY IN EASTERN NEW YORK... SOUTHWESTERN HAMILTON COUNTY IN EASTERN NEW YORK... SOUTHERN HERKIMER COUNTY IN EASTERN NEW YORK... AT 641 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING...HEAVY RAIN. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 13 MILES NORTHWEST OF OHIO TO OHIO TO DOLGEVILLE...OR ALONG A LINE EXTENDING FROM 10 MILES NORTH OF HINCKLEY TO 10 MILES EAST OF HINCKLEY TO LITTLE FALLS...AND MOVING EAST AT 30 MPH. THUNDERSTORMS WILL BE NEAR... STRATFORD BY 655 PM EDT CAROGA LAKE AND CAROGA LAKE PUBLIC CAMPGROUND BY 715 PM EDT THESE STORMS WILL PRODUCE AROUND ONE HALF INCH OF RAINFALL IN A SHORT AMOUNT OF TIME. THIS WILL RESULT IN PONDING OF WATER ON ROADS AND OTHER POOR DRAINAGE LOCATIONS. SNYDER/JPV
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 644 PM EDT MON AUG 10 2009 NYZ063-102345- WESTERN ULSTER NY- 644 PM EDT MON AUG 10 2009 ...STRONG THUNDERSTORMS MOVING INTO NORTHWESTERN ULSTER COUNTY IN EAST CENTRAL NEW YORK... AT 641 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING...AROUND HALF INCH HAIL... WINDS AROUND 45 MPH...FREQUENT LIGHTNING...AND HEAVY RAIN. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 12 MILES SOUTHWEST OF MEREDITH TO 14 MILES SOUTH OF MEREDITH TO 8 MILES SOUTHWEST OF HONESDALE...AND MOVING EAST AT 30 MPH. THUNDERSTORMS WILL BE NEAR... PHOENICIA...WOODLAND VALLEY CAMPGROUND AND 6 MILES NORTHWEST OF MOUNT TREMPER BY 745 PM EDT THESE STORMS WILL PRODUCE ONE HALF TO ONE INCH OF RAINFALL IN A SHORT AMOUNT OF TIME. THIS WILL RESULT IN PONDING OF WATER ON ROADS AND OTHER POOR DRAINAGE LOCATIONS. SNYDER/JPV
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 721 PM EDT MON AUG 10 2009 NYZ058-063-064-110000- WESTERN GREENE NY-EASTERN ULSTER NY-WESTERN ULSTER NY- 721 PM EDT MON AUG 10 2009 ...A STRONG THUNDERSTORM MOVING INTO SOUTHWESTERN GREENE COUNTY IN EAST CENTRAL NEW YORK... NORTHEASTERN ULSTER COUNTY IN EAST CENTRAL NEW YORK... THIS INCLUDES THE CITY OF KINGSTON... AT 720 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...WINDS AROUND 45 MPH...AND HEAVY RAIN. THIS STORM WAS LOCATED 12 MILES NORTHWEST OF PHOENICIA...OR ABOUT 7 MILES SOUTHEAST OF ROXBURY...AND MOVING SOUTHEAST AT 25 MPH. THE THUNDERSTORM WILL BE NEAR... LANESVILLE...PHOENICIA AND 6 MILES NORTHEAST OF WOODLAND VALLEY CAMPGROUND BY 750 PM EDT MOUNT TREMPER BY 755 PM EDT KENNETH L WILSON CAMPGROUND...7 MILES NORTHWEST OF WOODSTOCK AND 8 MILES NORTHWEST OF WEST HURLEY BY 800 PM EDT THESE STORMS WILL PRODUCE AROUND ONE HALF INCH OF RAINFALL IN A SHORT AMOUNT OF TIME. THIS WILL RESULT IN PONDING OF WATER ON ROADS AND OTHER POOR DRAINAGE LOCATIONS. SNYDER/JPV
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 801 PM EDT MON AUG 10 2009 NYZ063-064-110030- EASTERN ULSTER NY-WESTERN ULSTER NY- 801 PM EDT MON AUG 10 2009 ...A STRONG THUNDERSTORM IN SOUTHERN ULSTER COUNTY IN EAST CENTRAL NEW YORK... THIS INCLUDES THE CITY OF ELLENVILLE... AT 759 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...WINDS AROUND 50 MPH...FREQUENT LIGHTNING...AND HEAVY RAIN. THIS STORM WAS LOCATED NEAR ELLENVILLE...AND MOVING EAST AT 40 MPH. THE THUNDERSTORM WILL BE NEAR... WALLKILL BY 815 PM EDT PLATTEKILL AND MODENA BY 820 PM EDT PLATTEKILL BY 825 PM EDT MARLBORO BY 830 PM EDT THESE STORMS WILL PRODUCE ONE HALF TO ONE INCH OF RAINFALL IN A SHORT AMOUNT OF TIME. THIS WILL RESULT IN PONDING OF WATER ON ROADS AND OTHER POOR DRAINAGE LOCATIONS. SNYDER/JPV
The Albany radar (KENX), 107 km away, was scanning. The volume nearest the first event began at 00:21 UTC.
5 thunderstorm wind. Local standard time, as filed.
Trees were reported down in Plattekill due to strong thunderstorm winds.
Trees were reported down in Marlboro due to strong thunderstorm winds.
Trees were reported down in East Fishkill due to strong thunderstorm winds.
Trees were reported down in Dover Plains due to strong thunderstorm winds.
Trees were reported down near Pleasant Valley due to strong thunderstorm winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2009Every state in 2009This day in weather historyWarnings in New York, August 2009
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: 186452, 186453, 186454, 186456, 186455.