Alert archive / New York / Flash Flood Watches in 2016
Flash Flood Watch 2, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood watch at Oct 20, 2016, 4:05 PM EDT for 12 counties in New York. It took effect at Oct 20, 2016, 6:00 PM EDT. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Oct 20, 2016, 4:05 PM EDT (20:05 UTC)
- In effect from
- Oct 20, 2016, 6:00 PM EDT
- Expired
- Oct 21, 2016, 2:57 PM EDT
- In force
- 21 hr
- Issued by
- NWS Buffalo, NY
- Flood severity
- None
Counties Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Genesee County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Monroe County, NY, Ontario County, NY, Oswego County, NY, Wayne County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 121 km from the middle of the area, began a volume at 20:09 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.1 hours before the alert went out and 118 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1186 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
457 WGUS61 KBUF 202005 FFABUF URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE BUFFALO NY 405 PM EDT THU OCT 20 2016 ...FLASH FLOOD WATCH IN EFFECT THROUGH EARLY FRIDAY MORNING... .SEVERAL WAVES OF LOW PRESSURE WILL PUSH NORTHEAST TONIGHT ALONG A STALLED FRONTAL BOUNDARY OVER PENNSYLANIA. THESE FEATURES WILL HELP TO GENERATE A SOAKING RAINFALL OVER OUR REGION...WITH AN UNUSUALLY MOIST AIRMASS SUPPORTING AREAS OF MODERATE TO HEAVY RAIN AT TIMES. WHILE THERE IS HIGH CONFIDENCE THAT OVER AN INCH OF RAIN WILL FALL ACROSS PARTS OF THE WESTERN SOUTHERN TIER...FINGER LAKES AND EASTERN LAKE ONTARIO REGIONS BY DAYBREAK...THERE WILL BE THE POTENTIAL FOR UP TO THREE INCHES. NYZ004>008-013-014-021-210415- /O.NEW.KBUF.FF.A.0002.161020T2200Z-161021T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS-LIVINGSTON-ONTARIO- ALLEGANY- INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...OSWEGO... WATERTOWN...LOWVILLE...GENESEO...CANANDAIGUA...WELLSVILLE 405 PM EDT THU OCT 20 2016 ...FLASH FLOOD WATCH IN EFFECT THROUGH EARLY FRIDAY MORNING... THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND WESTERN NEW YORK...INCLUDING THE FOLLOWING IN CENTRAL ...NEW YORK... JEFFERSON...LEWIS...NORTHERN CAYUGA AND OSWEGO. IN WESTERN NEW YORK...ALLEGANY...LIVINGSTON...ONTARIO AND WAYNE. * THROUGH FRIDAY MORNING. * A STALLED FRONTAL BOUNDARY OVER PENNSYLVANIA TONIGHT WILL SERVE AS A PATHWAY FOR SEVERAL WAVES OF LOW PRESSURE TO TRACK NORTHEAST. THIS WILL ENCOURAGE A WIDESPREAD SOAKING RAIN INTO FRIDAY MORNING...WITH POSSIBLE THUNDERSTORMS THIS EVENING ADDING SIGNIFICANT RAINFALL AMOUNTS TO AN AREA THAT ALREADY PICKED UP A HALF TO ONE INCH OF RAIN TODAY. THE BULK OF THE AREA WILL RECEIVE AT LEAST INCH OF RAIN TONIGHT...WITH THE POTENTIAL FOR UP TO THREE INCHES. * SHARP RISES ON RIVERS AND STREAMS MAY RESULT IN URBAN AND SMALL STREAM FLOODING...ESPECIALLY WHERE LEAVES ARE CLOGGING STORM DRAINS. HOWEVER...IF THE HEAVIEST RAIN HITS URBAN AREAS...THIS COULD RESULT IN FLASH FLOODING. SINCE WATER LEVELS ARE RELATIVELY LOW ON THE LARGER RIVERS...THE GREATEST IMPACT FROM TONIGHTS RAIN WOULD BE WITH THE SMALL FEEDER STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER UPDATES. && $$ RSH/DC
5 follow-up statements
972 WGUS61 KBUF 202332 FFABUF FLOOD WATCH NATIONAL WEATHER SERVICE BUFFALO NY 732 PM EDT THU OCT 20 2016 ...FLASH FLOOD WATCH IN EFFECT THROUGH EARLY FRIDAY MORNING... .SEVERAL WAVES OF LOW PRESSURE WILL PUSH NORTHEAST TONIGHT ALONG A STALLED FRONTAL BOUNDARY OVER PENNSYLANIA. THESE FEATURES WILL HELP TO GENERATE A SOAKING RAINFALL OVER OUR REGION...WITH AN UNUSUALLY MOIST AIRMASS SUPPORTING AREAS OF MODERATE TO HEAVY RAIN AT TIMES. WHILE THERE IS HIGH CONFIDENCE THAT OVER AN INCH OF RAIN WILL FALL ACROSS PARTS OF THE WESTERN SOUTHERN TIER... FINGER LAKES AND EASTERN LAKE ONTARIO REGIONS BY DAYBREAK...THERE WILL BE THE POTENTIAL FOR UP TO THREE INCHES. NYZ004>008-013-014-021-210745- /O.CON.KBUF.FF.A.0002.000000T0000Z-161021T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS-LIVINGSTON-ONTARIO- ALLEGANY- INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...OSWEGO... WATERTOWN...LOWVILLE...GENESEO...CANANDAIGUA...WELLSVILLE 732 PM EDT THU OCT 20 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL AND WESTERN NEW YORK...INCLUDING THE FOLLOWING IN CENTRAL ...NEW YORK...JEFFERSON...LEWIS... NORTHERN CAYUGA AND OSWEGO. IN WESTERN NEW YORK...ALLEGANY... LIVINGSTON...ONTARIO AND WAYNE. * THROUGH FRIDAY MORNING. * A STALLED FRONTAL BOUNDARY OVER PENNSYLVANIA TONIGHT WILL SERVE AS A PATHWAY FOR SEVERAL WAVES OF LOW PRESSURE TO TRACK NORTHEAST. THIS WILL ENCOURAGE A WIDESPREAD SOAKING RAIN INTO FRIDAY MORNING...WITH POSSIBLE THUNDERSTORMS THIS EVENING ADDING SIGNIFICANT RAINFALL AMOUNTS TO AN AREA THAT ALREADY PICKED UP A HALF TO ONE INCH OF RAIN TODAY. THE BULK OF THE AREA WILL RECEIVE AT LEAST INCH OF RAIN TONIGHT...WITH THE POTENTIAL FOR UP TO THREE INCHES. * SHARP RISES ON RIVERS AND STREAMS MAY RESULT IN URBAN AND SMALL STREAM FLOODING...ESPECIALLY WHERE LEAVES ARE CLOGGING STORM DRAINS. HOWEVER...IF THE HEAVIEST RAIN HITS URBAN AREAS...THIS COULD RESULT IN FLASH FLOODING. SINCE WATER LEVELS ARE RELATIVELY LOW ON THE LARGER RIVERS...THE GREATEST IMPACT FROM TONIGHTS RAIN WOULD BE WITH THE SMALL FEEDER STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER UPDATES. && $$ RSH/DC
866 WGUS61 KBUF 210233 FFABUF FLOOD WATCH NATIONAL WEATHER SERVICE BUFFALO NY 1033 PM EDT THU OCT 20 2016 NYZ004>008-013-014-021-211045- /O.CON.KBUF.FF.A.0002.000000T0000Z-161021T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS-LIVINGSTON-ONTARIO- ALLEGANY- INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...OSWEGO... WATERTOWN...LOWVILLE...GENESEO...CANANDAIGUA...WELLSVILLE 1033 PM EDT THU OCT 20 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL AND WESTERN NEW YORK...INCLUDING THE FOLLOWING IN CENTRAL ...NEW YORK...JEFFERSON...LEWIS... NORTHERN CAYUGA AND OSWEGO. IN WESTERN NEW YORK...ALLEGANY... LIVINGSTON...ONTARIO AND WAYNE. * UNTIL 8 AM EDT FRIDAY. * A STALLED FRONTAL BOUNDARY OVER PENNSYLVANIA TONIGHT WILL SERVE AS A PATHWAY FOR SEVERAL WAVES OF LOW PRESSURE TO TRACK NORTHEAST. THIS WILL ENCOURAGE A WIDESPREAD SOAKING RAIN INTO FRIDAY MORNING...WITH POSSIBLE THUNDERSTORMS ADDING SIGNIFICANT RAINFALL AMOUNTS TO AN AREA THAT ALREADY PICKED UP A HALF TO ONE INCH OF RAIN OVER THE PAST 24 HOURS. THE BULK OF THE AREA WILL RECEIVE AT LEAST INCH OF RAIN OVERNIGHT...WITH THE POTENTIAL FOR UP TO THREE INCHES. * SHARP RISES ON RIVERS AND STREAMS MAY RESULT IN URBAN AND SMALL STREAM FLOODING...ESPECIALLY WHERE LEAVES ARE CLOGGING STORM DRAINS. HOWEVER...IF THE HEAVIEST RAIN HITS URBAN AREAS...THIS COULD RESULT IN FLASH FLOODING. SINCE WATER LEVELS ARE RELATIVELY LOW ON THE LARGER RIVERS...THE GREATEST IMPACT FROM TONIGHTS RAIN WOULD BE WITH THE SMALL FEEDER STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER UPDATES. && $$
645 WGUS61 KBUF 210831 FFABUF URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE BUFFALO NY 431 AM EDT FRI OCT 21 2016 NYZ003-011-012-020-211645- /O.EXB.KBUF.FF.A.0002.000000T0000Z-161021T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONROE-GENESEE-WYOMING-CATTARAUGUS- INCLUDING THE CITIES OF...ROCHESTER...BATAVIA...WARSAW...OLEAN 431 AM EDT FRI OCT 21 2016 ...FLASH FLOOD WATCH IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN BUFFALO HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE A PORTION OF WESTERN NEW YORK... INCLUDING THE FOLLOWING CATTARAUGUS...GENESEE...MONROE AND ... WYOMING. * UNTIL 4 PM EDT THIS AFTERNOON. * ELONGATED LOW PRESSURE OVER WEST VIRGINIA AND WESTERN PENNSYLVANIA WILL CONTINUE TO DIRECT WIDESPREAD SOAKING RAIN NORTH ACROSS WESTERN AND CENTRAL NEW YORK TODAY. THE HEAVIEST RAINFALL WILL OCCUR FROM THE SOUTHERN TIER ACROSS THE GENESEE RIVER VALLEY AND FINGER LAKES TO THE EASTERN LAKE ONTARIO REGION. MANY OF THESE LOCATIONS HAVE ALREADY PICKED UP RAINFALL AMOUNTS OF ONE TO THREE INCHES WITH FORECASTS FOR ANOTHER ONE TO TWO INCHES POSSIBLE THROUGH TODAY. * SHARP RISES ON RIVERS AND STREAMS MAY RESULT IN URBAN AND SMALL STREAM FLOODING...ESPECIALLY WHERE LEAVES ARE CLOGGING STORM DRAINS. HOWEVER...IF THE HEAVIEST RAIN HITS URBAN AREAS...THIS COULD RESULT IN FLASH FLOODING. SINCE WATER LEVELS ARE RELATIVELY LOW ON THE LARGER RIVERS...THE GREATEST IMPACT WOULD BE WITH THE SMALL FEEDER STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER UPDATES. && $$ NYZ004>008-013-014-021-211645- /O.EXT.KBUF.FF.A.0002.000000T0000Z-161021T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS-LIVINGSTON-ONTARIO- ALLEGANY- INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...OSWEGO... WATERTOWN...LOWVILLE...GENESEO...CANANDAIGUA...WELLSVILLE 431 AM EDT FRI OCT 21 2016 ...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF CENTRAL AND WESTERN NEW YORK...INCLUDING THE FOLLOWING IN CENTRAL ...NEW YORK...JEFFERSON...LEWIS... NORTHERN CAYUGA AND OSWEGO. IN WESTERN NEW YORK...ALLEGANY... LIVINGSTON...ONTARIO AND WAYNE. * UNTIL 4 PM EDT THIS AFTERNOON. * ELONGATED LOW PRESSURE OVER WEST VIRGINIA AND WESTERN PENNSYLVANIA WILL CONTINUE TO DIRECT WIDESPREAD SOAKING RAIN NORTH ACROSS WESTERN AND CENTRAL NEW YORK TODAY. THE HEAVIEST RAINFALL WILL OCCUR FROM THE SOUTHERN TIER ACROSS THE GENESEE RIVER VALLEY AND FINGER LAKES TO THE EASTERN LAKE ONTARIO REGION. MANY OF THESE LOCATIONS HAVE ALREADY PICKED UP RAINFALL AMOUNTS OF ONE TO THREE INCHES WITH FORECASTS FOR ANOTHER ONE TO TWO INCHES POSSIBLE THROUGH TODAY. * SHARP RISES ON RIVERS AND STREAMS MAY RESULT IN URBAN AND SMALL STREAM FLOODING...ESPECIALLY WHERE LEAVES ARE CLOGGING STORM DRAINS. HOWEVER...IF THE HEAVIEST RAIN HITS URBAN AREAS...THIS COULD RESULT IN FLASH FLOODING. SINCE WATER LEVELS ARE RELATIVELY LOW ON THE LARGER RIVERS...THE GREATEST IMPACT WOULD BE WITH THE SMALL FEEDER STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER UPDATES. && $$ SMITH
113 WGUS61 KBUF 211445 FFABUF FLOOD WATCH NATIONAL WEATHER SERVICE BUFFALO NY 1045 AM EDT FRI OCT 21 2016 NYZ003>008-011>014-020-021-212000- /O.CON.KBUF.FF.A.0002.000000T0000Z-161021T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONROE-WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS-GENESEE- WYOMING-LIVINGSTON-ONTARIO-CATTARAUGUS-ALLEGANY- INCLUDING THE CITIES OF...ROCHESTER...NEWARK...FAIR HAVEN... OSWEGO...WATERTOWN...LOWVILLE...BATAVIA...WARSAW...GENESEO... CANANDAIGUA...OLEAN...WELLSVILLE 1045 AM EDT FRI OCT 21 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL AND WESTERN NEW YORK...INCLUDING THE FOLLOWING IN CENTRAL ...NEW YORK...JEFFERSON...LEWIS... NORTHERN CAYUGA AND OSWEGO. IN WESTERN NEW YORK...ALLEGANY... CATTARAUGUS...GENESEE...LIVINGSTON...MONROE...ONTARIO...WAYNE AND WYOMING. * UNTIL 4 PM EDT THIS AFTERNOON. * MODERATE TO OCCASIONALLY HEAVY RAIN WILL CONTINUE TO FALL FROM A DEEPENING LOW OVER PENNSYLVANIA TODAY. THE HEAVIEST RAINFALL WILL OCCUR FROM ABOUT THE FINGER LAKES REGION TO THE NORTH COUNTRY. MANY OF THESE LOCATIONS HAVE ALREADY PICKED UP RAINFALL AMOUNTS OF TWO TO THREE INCHES OR MORE WITH FORECASTS FOR ANOTHER ONE TO TWO INCHES POSSIBLE THROUGH TODAY. ADDITIONAL AMOUNTS ARE EXPECTED TONIGHT, BUT RAINFALL RATES WILL BE MUCH LOWER WHEN COMPARED TO TODAY. * SHARP RISES ON STREAMS MAY RESULT IN URBAN AND SMALL STREAM FLOODING...ESPECIALLY WHERE LEAVES ARE CLOGGING STORM DRAINS. HOWEVER...IF THE HEAVIEST RAIN HITS URBAN AREAS...THIS COULD RESULT IN FLASH FLOODING. SINCE WATER LEVELS ARE RELATIVELY LOW ON THE LARGER RIVERS...THE GREATEST IMPACT WOULD BE WITH SMALL FEEDER STREAMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS. IF YOU ARE IN THE WATCH AREA YOU SHOULD MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV STATIONS FOR FURTHER UPDATES. && $$ ZAFF
515 WGUS61 KBUF 211857 FFABUF FLOOD WATCH NATIONAL WEATHER SERVICE BUFFALO NY 257 PM EDT FRI OCT 21 2016 NYZ003>008-011>014-020-021-212000- /O.CAN.KBUF.FF.A.0002.000000T0000Z-161021T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MONROE-WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS-GENESEE- WYOMING-LIVINGSTON-ONTARIO-CATTARAUGUS-ALLEGANY- INCLUDING THE CITIES OF...ROCHESTER...NEWARK...FAIR HAVEN... OSWEGO...WATERTOWN...LOWVILLE...BATAVIA...WARSAW...GENESEO... CANANDAIGUA...OLEAN...WELLSVILLE 257 PM EDT FRI OCT 21 2016 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND WESTERN NEW YORK HAS BEEN CANCELLED. $$
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 20, 4:47 AM EDT | Small Craft Advisory | BUF | 6 days |
Nearby
Flash Flood Watches in New York, 2016Every flash flood watch in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.