Several rounds of slow moving thunderstorms producing very heavy rainfall moved across southern Herkimer County Friday evening, June 24th, as an occluded frontal boundary moved eastward across the region.
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.
Several rounds of slow moving thunderstorms producing very heavy rainfall moved across southern Herkimer County Friday evening, June 24th, as an occluded frontal boundary moved eastward across the region.
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 Jun 24, 5:40 PM EST, 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ALBANY NY 640 PM EDT FRI JUN 24 2011 .SYNOPSIS... LOW PRESSURE WILL MOVE EAST ACROSS QUEBEC TONIGHT...REACHING THE CANADIAN MARITIMES ON SATURDAY. OUR WEATHER WILL REMAIN UNSETTLED WITH THE THREAT OF SHOWERS OR THUNDERSTORMS THROUGH SATURDAY EVENING. HIGH PRESSURE AND DRIER AIR WILL FINALLY MOVE IN FOR SUNDAY AND MONDAY. && .NEAR TERM /UNTIL 6 AM SATURDAY/... AS OF 630 PM...COVERAGE OF SHOWERS/TSTMS EVEN GREATER NOW ACROSS THE WESTERN MOHAWK VALLEY AND THE WESTERN ADIRONDACKS...SO HAVE RAISED THE POPS THERE FOR A COUPLE OF HOURS THIS EVENING TO CATEGORICAL... AND LOWERED POPS OVER THE EASTERN ZONES TO CHANCE LEVELS FOR ANOTHER COUPLE OF HOURS. TEMPS HAVE FALLEN QUICKLY THIS EVENING...EXPECIALLY ACROSS NEW YORK ZONES...SO HAVE ADJUSTED HOURLY TEMPS ACCORDINGLY TO ACCOUNT FOR CURRENT OBS/TRENDS. ****PREVIOUS DISCUSSION**** AS OF 445 PM...LOTS OF SHOWERS/TSTMS OVER CENTRAL NY WHICH HAVE MOVED NORTHEASTWARD INTO THE WESTERN PART OF THE ALBANY COUNTY WARNING AREA (CWA)...BUT THEY WEAKEN AS THEY DO SO AS THEY RUN INTO THE MORE STABLE AIR OVER THE CWA. THE CELLS HAVE BEEN OVER CENTRAL NY FOR SEVERAL HOURS NOW...AND SHOW LITTLE SIGN OF BECOMING SEVERE...SO SEVERE CONVECTION NOW APEARS UNLIKELY FOR THE ALBANY CWA FOR THIS EVENING. HAVE FORECAST LIKELY POPS FOR MOST AREAS THROUGH EARLY TONIGHT... THEN GRADUALLY REDUCE THE POPS LATER TONIGHT TO AROUND 40 PERCENT BY SUNRISE. LOWS TONIGHT WILL BE IN THE MID 50S TO LOWER 60S. && .SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/... THE WEATHER ON SATURDAY WILL LIKELY BE A REPEAT OF FRIDAY WITH ISOLATED TO SCATTERED PCPN TO START THE DAY...BUT SHOWERS BECOMING MORE NUMEROUS BY AFTERNOON...ALONG WITH SCATTERED THUNDERTORMS. THE UPPER LEVLE TROF AXIS ASSOCIATED WITH THE SLOW MOVING SYSTEM THAT HAS BEEN AFFECTING THE REGION SINCE WEDNESDAY...WILL NOT BE CROSSING THE REGION UNTIL LATE IN THE DAY AND DURING THE EVENING...SO A 40 TO 50 PERCENT POP HAS BEEN FORECAST WELL INTO SATURDAY EVENING AS THIS TROF MOVES THROUGH. THE MOST NUMEROUS SHOWERS/TSTMS ON SATURDAY AND SATURDAY EVENING WILL LIKELY BE OVER THE EASTERN AND NORTHEASTERN PART OF THE FORECAST AREA. AFTER THE TROF AXIS MOVES TO THE EAST...THE SHOWERS WILL FINALLY BEGIN TO DIMINISH LATE SATURDAY NIGHT. WHICH WILL LEAD TO A RELATIVELY DRY DAY ON SUNDAY. ALTHOUGH THE UPPER LEVEL TROF WILL FINALLY BE TO THE EAST AND HIGH PRESSURE WILL BE BUILDING IN...AN ISOLATED SHOWER CANNOT BE RULED OUT ON SUNDAY AS A LAGGING SURFACE TROF AND A SHALLOW POOL OF MOISTURE ARE FORECAST TO MOVE THROUGH SUNDAY AFTERNOON. FOR NOW HAVE ONLY FORECAST A SLIGHT CHANCE OF SHOWERS OVER THE HIGHER TERRAIN AREAS SUNDAY AFTERNOON. HIGH PRESSURE AND DRY AIR WILL TAKE HOLD FOR SUNDAY NIGHT. HIGHS SATURDAY WILL BE IN THE UPPER 60S AND 70S. LOWS SATURDAY NIGHT IN THE 50S. HIGHS SUNDAY IN THE 70S...AND LOWS SUNDAY NIGHT IN THE UPPER 40S AND 50S. && .LONG TERM /MONDAY THROUGH FRIDAY/... MOS GUIDANCE. THE WORK WEEK STARTS OFF HIGH AND DRY...BUT A SYSTEM APPROACHING FROM THE WEST WILL BRING A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS TUESDAY...AND POSSIBLY ALSO WEDNESDAY DEPENDING UPON THE TIMING OF THE COLD FRONTAL PASSAGE. ONCE THE FRONT PASSES THROUGH...HIGH PRESSURE WILL SETTLE IN AGAIN...AND THE BALANCE OF THE WORK WEEK WILL BE DRY. HIGH TEMPERATURES WILL BE FROM THE UPPER 70S TO MID 80S MONDAY AND TUESDAY...WITH SOMEWHAT COOLER READINGS IN THE NORTH AND MOUNTAINS FOR THE BALANCE OF THE WEEK. LOWS WILL BE MOSTLY FROM THE MID 50S TO MID 60S MONDAY AND TUESDAY NIGHTS...WITH SOME MID TO UPPER 40S SHOWING UP IN THE MOUNTAINS WEDNESDAY AND THURSDAY NIGHT. NORMAL HIGHS AT ALBANY IN VERY LATE JUNE ARE IN THE LOWER 80S...AND LOWS ARE IN THE UPPER 50S. && .AVIATION /18Z FRIDAY THROUGH TUESDAY/... MVFR CIGS HAVE HUNG TOUGH ACROSS THE HUDSON VALLEY TAF SITES SO FAR TODAY...BUT WOULD EXPECT SKIES TO FINALLY GO VFR BY MID AFTN DUE TO APPROACHING BREAKS ON THE VISIBLE SATELLITE IMAGE. THEREAFTER...SOME SCT -SHRA MAY AFFECT THE REGION FOR THE LATE AFTN/EVENING HOURS. WILL INCLUDE THE CB APPENDAGE DUE TO A SLIGHT THREAT OF THUNDER...BUT DO NOT HAVE THE CONFIDENCE IN THE TIMING OR EXTENT OF THUNDER TO INCLUDE A TSRA OR VCTS AT THIS TIME. AFTER SUNSET...LOW LEVEL MOISTURE WILL ALLOW FOR MVFR CIGS TO RETURN. CANNOT TOTALLY RULE OUT IFR CONDITIONS LATE TONIGHT AS WELL...ALTHOUGH THIS MAY DEPEND ON JUST HOW MANY SHRA/TSRA OCCUR AT THE TAF SITES THIS AFTN/EVE. FOR NOW...WILL DROP CIGS TO MVFR AND ADDRESS AT THE NEXT TAF ISSUANCE. WILL ALSO KEEP THE VCSH AS THERE MAY AN ADDITIONAL SHOWER OR TWO OVERNIGHT WITH THE APPROACHING UPPER TROUGH. WINDS WILL BECOME EAST-SOUTHEAST TO SOUTH AT ALL TERMINALS THIS AFTN. THERE MAY BE A FEW GUSTS UP THE HUDSON VALLEY AT KALB APPROACHING 20 KTS. WINDS WILL DIE OFF THIS EVENING WITH THIS LOSS OF HEATING...BUT WILL PICK UP SOMEWHAT AGAIN ON SATURDAY BY AFTN. OUTLOOK... SAT AFTN...VFR WITH MVFR POSSIBLE WITH SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. SUN...VFR. SLIGHT CHC OF SHOWERS. MON...VFR. NO SIG WX. TUE...VFR...CHC SUB-VFR WITH SHOWERS AND THUNDERSTORMS. && .FIRE WEATHER... UNSETTLED WEATHERE WITH SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS THROUGH SATURDAY EVENING. RELATIVE HUMIDITY LEVELS WILL RISE TO NEAR 100 PERCENT TONIGHT... THEN ONLY LOWER TO BETWEEN 55 AND 70 PERCENT ON SATURDAY. SURFACE WINDS WILL BE SOUTH OR SOUTHEAST AT LESS THAN 10 MPH TONIGHT...AND BECOMING WESTERLY AT 5 TO 15 KTS ON SATURDAY WITH SOME GUSTS TO 20 MPH. && .HYDROLOGY... SCATTERED TO NUMEROUS SHOWERS...WITH THUNDERSTORMS DURING THE AFTERNOON AND EVENING HOURS WILL CONTINUE THROUGH SATURDAY EVENING...THEN FINALLY BEGIN TO TAPER OFF SATURDAY NIGHT. NO WIDESPREAD HYDRO PROBLEMS ARE EXPECTED DURING THIS PERIOD...BUT LOCALIZED FLOOD PROBLEMS DUE TO HEAVY DOWNPOURS OR TRAINING OF THUNDERSTORMS COULD RESULT IN MAINLY MINOR FLOODING PROBLEMS THORUGH SATURDAY EVENING. DRIER WEATHER RETURNS FOR SUNDAY AND MONDAY...WITH ANOTHER CHANCE FOR SHOWERS AND THUNDERSTORMS TUESDAY AND TUESDAY NIGHT. 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...GJM NEAR TERM...GJM SHORT TERM...GJM LONG TERM...ELH AVIATION...FRUGIS FIRE WEATHER...GJM HYDROLOGY...GJM
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ALBANY NY 421 PM EDT FRI JUN 24 2011 CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066- 082>084-VTZ013>015-251115- 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- 421 PM EDT FRI JUN 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWESTERN CONNECTICUT...WESTERN MASSACHUSETTS...EAST CENTRAL NEW YORK AND SOUTHERN VERMONT. .DAY ONE...TONIGHT. THERE IS A CHANCE OF THUNDERSTORMS THROUGH THIS EVENING AS A SURFACE COLD FRONT APPROACHES THE REGION. IT IS UNLIKELY THAT ANY OF THESE THUNDERSTORMS WILL BECOME SEVERE...BUT SEVERE THUNDERSTORMS WITH WIND GUSTS CANNOT BE COMPLETELY RULED OUT. THUNDERSTORM THAT DO FORM WILL MOVE SOUTHWEST TO NORTHEAST AT 25 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THERE IS A CHANCE OF THUNDERSTORMS SATURDAY AFTERNOON AND EVENING... AND TUESDAY INTO TUESDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALBANY NY 348 PM EDT FRI JUN 24 2011 NYZ039-040-082-242030- MONTGOMERY NY-SOUTHERN FULTON NY-NORTHERN FULTON NY- 348 PM EDT FRI JUN 24 2011 ...A STRONG THUNDERSTORM IN MONTGOMERY COUNTY IN EASTERN NEW YORK... FULTON COUNTY IN EASTERN NEW YORK... AT 347 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING...WINDS AROUND 45 MPH...AND HEAVY RAIN. THIS STORM WAS LOCATED NEAR FONDA...AND MOVING NORTHEAST AT 20 MPH. THE THUNDERSTORM WILL BE NEAR... TRIBES HILL BY 400 PM EDT JOHNSTOWN BY 405 PM EDT FORT JOHNSON BY 410 PM EDT GLOVERSVILLE BY 415 PM EDT BROADALBIN AND MAYFIELD BY 430 PM EDT LAT...LON 4312 7429 4301 7411 4284 7440 4290 7448 TIME...MOT...LOC 1948Z 222DEG 16KT 4292 7438 JPV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
503 PM EDT FRI JUN 24 2011
NYZ063-242145-
WESTERN ULSTER NY-
503 PM EDT FRI JUN 24 2011
...A THUNDERSTORM WITH HEAVY RAINFALL IN
ULSTER COUNTY IN EAST CENTRAL NEW YORK...
AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CAPABLE OF PRODUCING HEAVY RAIN. THIS STORM WAS LOCATED
8 MILES SOUTHWEST OF WOODLAND VALLEY CAMPGROUND...OR ABOUT 9 MILES
NORTHEAST OF GRAHAMSVILLE...AND MOVING NORTHEAST AT 15 MPH.
THE THUNDERSTORM WILL BE NEAR...
WOODLAND VALLEY CAMPGROUND AND WEST SHOKAN BY 525 PM EDT
PHOENICIA BY 535 PM EDT
MOUNT TREMPER BY 540 PM EDT
KENNETH L WILSON CAMPGROUND BY 545 PM EDT
UP TO ONE INCH OF RAIN COULD FALL IN A SHORT AMOUNT OF TIME WITH
THIS STORM. THIS MAY RESULT IN PONDING OF WATER ON ROADS AND IN POOR
DRAINAGE LOCATIONS.
LAT...LON 4185 7449 4187 7447 4192 7457 4199 7465
4213 7435 4199 7412 4181 7445
TIME...MOT...LOC 2102Z 237DEG 15KT 4196 7444
JPVSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
602 PM EDT FRI JUN 24 2011
NYZ032-038-242245-
NORTHERN HERKIMER NY-SOUTHERN HERKIMER NY-
602 PM EDT FRI JUN 24 2011
...THUNDERSTORMS WITH HEAVY RAINFALL MOVING INTO
HERKIMER COUNTY IN EASTERN NEW YORK...
AT 559 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 MCKEEVER TO 10 MILES
SOUTHWEST OF NEWPORT...OR ALONG A LINE EXTENDING FROM 8 MILES
SOUTHWEST OF OLD FORGE TO UTICA...AND MOVING NORTHEAST AT 30 MPH.
THUNDERSTORMS WILL BE NEAR...
NICKS LAKE CAMPGROUND AND POLAND BY 610 PM EDT
OLD FORGE...MIDDLEVILLE AND COLD BROOK BY 615 PM EDT
OHIO AND NEWPORT BY 620 PM EDT
ALGER ISLAND PUBLIC CAMPGROUND BY 625 PM EDT
BIG MOOSE BY 630 PM EDT
1 TO 2 INCHES OF RAIN COULD FALL IN A SHORT AMOUNT OF TIME WITH
THESE STORMS. THIS AMOUNT OF RAINFALL WOULD RESULT IN PONDING OF
WATER ON ROADS AND OTHER POOR DRAINAGE LOCATIONS.
LAT...LON 4322 7508 4326 7516 4330 7515 4334 7509
4406 7517 4410 7516 4406 7507 4407 7488
4350 7482 4333 7490 4328 7479 4312 7491
4298 7521 4306 7522
TIME...MOT...LOC 2201Z 226DEG 26KT 4363 7504 4311 7515
JPVSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
627 PM EDT FRI JUN 24 2011
NYZ032-033-038-039-082-242315-
HAMILTON NY-SOUTHERN FULTON NY-NORTHERN FULTON NY-
NORTHERN HERKIMER NY-SOUTHERN HERKIMER NY-
627 PM EDT FRI JUN 24 2011
...STRONG THUNDERSTORMS IN
HAMILTON COUNTY IN EASTERN NEW YORK...
FULTON COUNTY IN EASTERN NEW YORK...
HERKIMER COUNTY IN EASTERN NEW YORK...
AT 624 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF THUNDERSTORMS CAPABLE OF PRODUCING...WINDS AROUND 45
MPH...AND HEAVY RAIN. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SOUTH OF OLD FORGE TO 11 MILES EAST OF HINCKLEY TO 8
MILES NORTH OF HERKIMER...AND MOVING EAST AT 20 MPH.
THUNDERSTORMS WILL BE NEAR...
NEAR LIMEKILN LAKE CAMPGROUND BY 650 PM EDT
STRATFORD BY 710 PM EDT
1 TO 2 INCHES OF RAIN COULD FALL IN A SHORT AMOUNT OF TIME WITH
THESE STORMS. THIS AMOUNT OF RAINFALL WOULD RESULT IN PONDING OF
WATER ON ROADS AND OTHER POOR DRAINAGE LOCATIONS.
LAT...LON 4319 7511 4322 7508 4323 7510 4334 7506
4377 7511 4380 7451 4339 7446 4314 7453
4306 7515
TIME...MOT...LOC 2227Z 263DEG 17KT 4360 7494 4335 7488
4314 7497
JPVThe Albany radar (KENX), 90 km away, was scanning. The volume nearest the first event began at 23:28 UTC.
4 flash flood. Local standard time, as filed.
Steuben Road was reported washed out in the Village of Herkimer.
The intersection of Grant Road and Military Road in Cold Brook was reported flooded due to heavy rainfall.
Road washouts were reported in the Town of Fairfield on Sandy Lane Road, Comstock Road and Myers Road from culverts backing up and overflowing the roadways. Also, Kelly Road was closed because part of a field of corn slid down the hillside and covered the roadway about 0.3 miles west of Route 169.
A small bridge was destroyed on an Amish Farm on Route 169 just west of Rockwell Road in the Town of Little Falls when the small creek it crossed flooded.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2011Every state in 2011This day in weather historyWarnings in New York, June 2011
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: 320658, 320659, 320661, 320662.