A cold front crossed the area and brought severe thunderstorms to parts of the eastern Finger Lakes and eastern Lake Ontario region. The thunderstorms produced damaging winds that downed trees and power lines.
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 BUF wrote it up.
A cold front crossed the area and brought severe thunderstorms to parts of the eastern Finger Lakes and eastern Lake Ontario region. The thunderstorms produced damaging winds that downed trees and power lines. In Clyde, a home was damaged by a falling tree. In Wayne county, hail accompanied the storms with nickel-size hail being reported in Rose.
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 Buffalo, NY wrote its last area forecast discussion before the first event at Jul 26, 12:35 PM EST, 1 hour 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BUFFALO NY 135 PM EDT SUN JUL 26 2009 .SYNOPSIS... A COLD FRONT WILL PUSH THROUGH CENTRAL AND EASTERN NEW YORK STATE TODAY AND BRING A FEW MORE SHOWERS AND THUNDERSTORMS TO THE AREA. A COUPLE MORE SHOWERS ARE POSSIBLE MONDAY BEFORE HIGH PRESSURE BRINGS WARM AND DRY CONDITIONS ON TUESDAY. ANOTHER COLD FRONT APPROACHING FROM THE CENTRAL GREAT WILL LAKES WILL BRING A CHANCE FOR SHOWERS AND THUNDERSTORMS FOR WEDNESDAY. && .NEAR TERM /THROUGH TONIGHT/... 130 PM UPDATE...CONVECTION HAS FIRED ALONG LAKE ERIES BREEZE BOUNDARY...WITH A SCATTERED OF SHOWERS AND A FEW STORMS EXTENDING FROM THE CHAUTAUQUA LAKESHORE NORTHEAST TO SOUTHERN ERIE AND GENESEE TO WESTER MONROE EARLY THIS AFTERNOON. SO FAR NOTHING SEVERE BUT LOCAL DOWNPOURS AND MAYBE A BIT OF HAIL. THIS ACTIVITY SHOULD CONTINUE THROUGH MID AFTERNOON...WITH WINDS VEERING SLIGHTLY WHICH WOULD PUSH ACTIVITY A BIT FURTHER EAST...STRONG LAKE SHADOW IN BUFFALO AREA SHOULD GENERALLY PROTECT THE CITY AND NORTH SUBURBS.WHILE STRONG LINE NEAR HAMILTON LOOKS TO STAY NORTH BUT WILL NEED TO WATCH FOR THE OUTFLOWS IN NIAG COUNTY. ALL IN ALL...PREV UPDATE HAS THIS WELL COVERED...HIGHER POPS SOUTH AND EAST...LOWEST IN BUF-IAG AREA. ISOLD SEVERE POSSIBLE BUT BETTER CHANCES EAST OF OUR CWA WHERE INSTABILITY MUCH BETTER LATER TODAY. TONIGHT...WILL TAPER THREAT OF SHWRS AND TSTMS OFF FROM WEST TO EAST DURING THE EVENING HRS KEEPING CHC POPS INTO EARLY EVENING IN THE WEST AND INTO LATE EVENING ACROSS AREAS EAST OF THE GENESEE VALLEY. LOWS TONIGHT GENLY IN THE LOW TO MID 60S WITH UPPER 50S ACROSS HIGHER TERRAIN SOUTHEAST OF BUF, ACROSS THE SOUTHERN TIER. WILD WEATHER DAY FROM BUF TO ROC YESTERDAY WITH AT LEAST TWO CONFIRMED TORNADOES AND MANY REPORTS OF DAMAGE. SEE LSR AND PNS PRODUCTS FOR FURTHER DETAILS...THESE ARE AVAILABLE ON TOP NEWS OF THE DAY SECTION OF OUR WEBSITE. && .SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/... WEAK HIGH PRESSURE RIDGING ACROSS THE LOWER GREAT LAKES WILL BRING DRY CONDITIONS FOR A GOOD PART OF MONDAY...BUT WILL LEAVE IN A CHANCE FOR A FEW AFTERNOON SHOWERS AND THUNDERSTORMS WITH A COUPLE OF ILL DEFINED SHORT WAVES FORECAST TO ROTATE EAST ACROSS NEW YORK STATE. THE NAM12 IS SUGGESTING THAT THERE WILL BE SOME SHADOWING DEVELOPING DOWNWIND OF LAKE ERIE. THEREFORE...WILL INDICATE SLIGHTLY HIGHER CHANCE POPS ACROSS THE SOUTHERN TIER AND NORTHEAST OF KBUF. EXPECT THE CONVECTION TO DIE DOWN QUICKLY WITH THE LOSS OF DAYTIME HEATING MONDAY EVENING. TUESDAY STILL LOOKS TO BE A DRY AND RATHER WARM DAY WITH 850 MB TEMPERATURES FORECAST TO WARM TO ABOUT 16C. CORRESPONDING SURFACE TEMPERATURES SHOULD HAVE NO PROBLEM RISING INTO THE LOWER TO MID 80S. TUESDAY NIGHT WILL FEATURE A RETURN TO SLIGHTLY MORE UNSETTLED CONDITIONS AS MOISTURE BEGINS TO ADVECT AHEAD OF A COLD FRONT THAT WILL BE ADVANCING SLOWLY ACROSS THE CENTRAL GREAT LAKES. WILL INDICATE A GRADUAL WEST TO EAST INCREASE IN LOW CHANCE POPS. && .LONG TERM /WEDNESDAY THROUGH SUNDAY/... DURING THIS PERIOD...THE PERSISTENT UPPER LOW OVER THE GREAT LAKES REGION IS EXPECTED TO RETROGRADE A LITTLE BIT FURTHER TO THE WEST IN RESPONSE TO A BUILDING RIDGE OVER THE EASTERN PACIFIC...WITH THE MEAN POSITION OF THE UPPER TROUGH AXIS MIGRATING FROM THE CENTRAL LAKES TO THE WESTERN LAKES/UPPER MIDWEST. THIS WILL ALLOW FOR GRADUAL HEIGHT RISES OVER OUR AREA AS THE WESTERN ATLANTIC SUBTROPICAL RIDGE SLOWLY BUILDS FURTHER WESTWARD IN RESPONSE TO THE RETROGRADING LOW...WITH THE UPPER LEVEL FLOW TENDING MORE THEN SOUTHWESTERLY WITH TIME. AS A RESULT...TEMPERATURES DURING THIS PERIOD SHOULD BE CLOSE TO OR EVEN A LITTLE ABOVE NORMAL MIDSUMMER LEVELS. AS FOR RAIN CHANCES...THE RELATIVELY QUIET CONDITIONS AT THE END OF THE SHORT TERM PERIOD WILL BECOME MORE UNSETTLED FOR WEDNESDAY AND WEDNESDAY NIGHT AS A COLD FRONT PUSHES EAST FROM THE CENTRAL GREAT LAKES. THE LATEST GFS GUIDANCE SUGGESTS THAT THE FRONT WILL CROSS NEW YORK STATE WEDNESDAY NIGHT...THEN STALL SOUTH OF THE STATE THURSDAY AND FRIDAY. BASED ON THIS TREND...WILL MAINTAIN LIKELY POPS ACROSS THE AREA WEDNESDAY FOLLOWED BY DECREASING CHANCE POPS FOR THURSDAY AND FRIDAY. WEAK RIDGING BETWEEN THE DEPARTED COLD FRONT AND ANOTHER SYSTEM TRACKING ACROSS THE UPPER MIDWEST SHOULD BRING DRY WEATHER ON SATURDAY. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... CONDITIONS SHLD GENLY BE VFR ACROSS MUCH OF THE REGION FOR THE 24 HOUR TAF PERIOD...BUT BRIEFLY LOWERING TO MVFR/IFR IN ANY SHOWERS/TSTORMS. BEST CHC OF THIS WOULD BE UNTIL 00Z AT THE KROC AND KJHW SITES. ANY ACTIVITY SHLD WIND DOWN THIS EVENING IN THE WEST AND THEN AFTER 06Z EAST OF LK ONTARIO. SOME FOG IS POSSIBLE ACROSS PORTIONS OF THE SOUTHERN TIER LATE TONIGHT. OUTLOOK... MONDAY NIGHT AND TUESDAY...MAINLY VFR. WEDNESDAY...MVFR IN SHOWERS/THUNDERSTORMS. THURSDAY...VFR/MVFR IN MORNING SHOWERS. FRIDAY...MAINLY VFR. && .MARINE... SOUTHWEST WINDS BEHIND A DEPARTING COLD FRONT WILL ALLOW WAVES TO BUILD A LITTLE MORE TODAY AND MONDAY...BUT CONDITIONS ARE EXPECTED TO REMAIN JUST BELOW THE CRITERIA NEEDED FOR A SMALL CRAFT ADVISORY. EXPECT GENERALLY LIGHT SOUTHERLY WINDS ON TUESDAY...BEFORE A STRENGTHENING SOUTHWEST FLOW SETS UP AHEAD OF AN APPROACHING COLD FRONT WEDNESDAY. && .BUF WATCHES/WARNINGS/ADVISORIES... NY...NONE. MARINE...NONE. && SYNOPSIS...TJP NEAR TERM...JJP/SFM SHORT TERM...JJR/TJP LONG TERM...JJR/TJP AVIATION...SFM MARINE...TJP
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BUFFALO NY 503 AM EDT SUN JUL 26 2009 NYZ001>005-010>014-019>021-085-270915- NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-NORTHERN ERIE-GENESEE- WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA-CATTARAUGUS-ALLEGANY- SOUTHERN ERIE- 503 AM EDT SUN JUL 26 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND NORTH CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES... AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF NYZ006>008-270915- OSWEGO-JEFFERSON-LEWIS- 503 AM EDT SUN JUL 26 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. SCATTERED THUNDERSTORMS FORMING AHEAD OF A SLOW MOVING COLD FRONT COULD BECOME STRONG TO SEVERE THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES... AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF LEZ020-040-041-LOZ042>045-062>065-SLZ022-024-270915- UPPER NIAGARA RIVER AND BUFFALO HARBOR- LAKE ERIE NEARSHORE WATERS FROM RIPLEY TO DUNKIRK- LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO- LAKE ONTARIO NEARSHORE WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH- LAKE ONTARIO NEARSHORE WATERS FROM HAMLIN BEACH TO SODUS BAY- LAKE ONTARIO NEARSHORE WATERS FROM SODUS BAY TO MEXICO BAY- LAKE ONTARIO NEARSHORE WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE RIVER- LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH- LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO SODUS BAY- LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO MEXICO BAY- LAKE ONTARIO OPEN WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE RIVER- SAINT LAWRENCE RIVER FROM CAPE VINCENT TO OGDENSBURG- SAINT LAWRENCE RIVER FROM OGDENSBURG TO SAINT REGIS- 503 AM EDT SUN JUL 26 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE ONTARIO AND SAINT LAWRENCE RIVER. .DAY ONE...TODAY AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES... AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
955 AM EDT SUN JUL 26 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0555 PM TORNADO HILTON 43.29N 77.79W
07/25/2009 MONROE NY NWS STORM SURVEY
EFO LENGTH 0.75MI / WIDTH 30 YDS
&&
LEVANSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 1214 PM EDT SUN JUL 26 2009 NYZ002-010-011-261915- ORLEANS-NORTHERN ERIE-GENESEE- INCLUDING THE CITIES OF...MEDINA...BUFFALO...BATAVIA 1213 PM EDT SUN JUL 26 2009 ..THUNDERSTORMS DEVELOPING RAPIDLY JUST EAST AND NORTHEAST OF BUFFALO... AT 1210 PM...A LINE OF THUNDERSTORMS EXTENDED FROM LANCASTER AND ALDEN NORTHEAST ACROSS AKRON TO ALABAMA AND WESTERN ORLEANS COUNTIES. THESE STORMS WILL MOVE NORTHEAST AT 30 MPH AND PRODUCE TORRENTIAL RAINS...FREQUENT LIGHTNING AND POSSIBLY SMALL HAIL. THE LINE SHOULD EDGE SLOWLY EAST ACROS ORLEANS AND WESTERN GENESEE COUNTIES THROUGH 130 PM. SFM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 139 PM EDT SUN JUL 26 2009 NYZ003-011>013-019-020-085-261900- MONROE-GENESEE-WYOMING-LIVINGSTON-CHAUTAUQUA-CATTARAUGUS- SOUTHERN ERIE- INCLUDING THE CITIES OF...ROCHESTER...BATAVIA...WARSAW... GENESEO...JAMESTOWN...OLEAN...ORCHARD PARK...SPRINGVILLE 139 PM EDT SUN JUL 26 2009 AT 140 PM A WIDE AREA OF SHOWERS AND THUNDERSTORMS WERE SCATTERED ACROSS THE EFFECTED COUNTIES. THE STRONGEST STORMS WERE OVER EASTERN ERIE, AND NORTH CENTRAL MONROE COUNTIES. HOWEVER, ANY DEVELOPING STORM IN THESE AREAS WILL BE CAPABLE OF PRODUCING TORRENTIAL DOWNPOURS, GUSTY WIND, SMALL HAIL, AND FREQUENT LIGHTNING. POOR DRAINAGE FLOODING AND PONDING ON AREA ROADWAYS CAN BE EXPECTED, ESPECIALLY IN AREAS ALREADY DRENCHED FOR THE RAIN OF THE PAST FEW DAYS. IF THREATENING WEATHER APPROACHES TAKE COVER IMMEDIATELY.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 306 PM EDT SUN JUL 26 2009 NYZ004-005-262015- WAYNE-NORTHERN CAYUGA- INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN 306 PM EDT SUN JUL 26 2009 ...STRONG THUNDERSTORMS TO AFFECT WAYNE AND NORTHERN CAYUGA COUNTIES... AT 302 PM EDT...A STRONG THUNDERSTORM WAS LOCATED ALONG THE NEW YORK STATE THRUWAY NEAR THE WAYNE-SENECA COUNTY LINE. THIS STORM WILL MOVE NORTHWARD ACROSS EASTERN WAYNE COUNTY...REACHING CLYDE AROUND 315 PM AND WOLCOTT BY 345 PM. IT MAY THEN CLIP FAR NORTHERN CAYUGA COUNTY NEAR FAIR HAVEN A BIT AFTER 4 PM. THE STORM CONTAINS HEAVY RAIN AND POSSIBLE HAIL ALONG WITH FREQUENT LIGHTNING. POOR DRAINAGE FLOODING CAN OCCUR. SFM
The Binghamton radar (KBGM), 122 km away, was scanning. The volume nearest the first event began at 19:09 UTC.
5 thunderstorm wind, 1 hail. Local standard time, as filed.
Thunderstorm winds downed a tree which fell on a house.
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, July 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: 191011, 191009, 191014, 191015, 191017, 191018.