Alert archive / New York / Flash Flood Watches in 2017
Flash Flood Watch 4, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood watch at Jul 12, 2017, 1:53 PM EDT for 13 counties in New York. It took effect at Jul 12, 2017, 5:00 PM EDT. It was in force for 34 hr.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2017, 1:53 PM EDT (17:53 UTC)
- In effect from
- Jul 12, 2017, 5:00 PM EDT
- Expired
- Jul 14, 2017, 3:29 AM EDT
- In force
- 34 hr
- Issued by
- NWS Buffalo, NY
- Flood severity
- None
Counties Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Ontario County, NY, Orleans County, NY, Wayne County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 59 km from the middle of the area, began a volume at 17:57 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, 5.9 hours before the alert went out and 56 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
- 835 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 605 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
855 WGUS61 KBUF 121753 FFABUF URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Buffalo NY 153 PM EDT Wed Jul 12 2017 NYZ001>005-010>014-019>021-085-130200- /O.NEW.KBUF.FF.A.0004.170712T2100Z-170713T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie- Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, Buffalo, Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 153 PM EDT Wed Jul 12 2017 ...FLASH FLOOD WATCH IN EFFECT FROM 5 PM EDT THIS AFTERNOON THROUGH THURSDAY MORNING... The National Weather Service in Buffalo has issued a * Flash Flood Watch for portions of central and western New York...including the following counties...in central New York...Northern Cayuga. In western New York...Allegany... Cattaraugus...Chautauqua...Genesee...Livingston...Monroe... Niagara...Northern Erie...Ontario...Orleans...Southern Erie... Wayne and Wyoming. * From 5 PM EDT this afternoon through Thursday morning. * Several rounds of showers and thunderstorms are expected to track across the watch area this afternoon through Thursday morning. Some of these showers and storms will have the potential to create torrential downpours across areas that saw heavy rainfall earlier today, resulting in an elevated risk for flash flooding. * Urban areas, small streams, and areas in steep terrain will be at the highest risk for flash flooding thorugh Thursday morning. 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. && $$ WOOD
6 follow-up statements
203 WGUS61 KBUF 122336 FFABUF Flood Watch National Weather Service Buffalo NY 736 PM EDT Wed Jul 12 2017 NYZ001>005-010>014-019>021-085-130900- /O.CON.KBUF.FF.A.0004.000000T0000Z-170713T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie- Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, Buffalo, Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 736 PM EDT Wed Jul 12 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING... The Flash Flood Watch continues for * Western and portions of Central New York. * Through Thursday morning. * Several rounds of showers and thunderstorms are expected to track across the area through Thursday morning. Some of these showers and storms will have the potential to create torrential downpours across areas that saw heavy rainfall earlier today, resulting in an elevated risk for flash flooding. * Urban areas, small streams, and areas in steep terrain will be at the highest risk for flash flooding through Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means the threat of flash flooding exists along rivers and creeks. If you are in the watch area you should monitor weather conditions closely. Be ready to move to higher ground if flooding is observed or a warning is issued. Stay tuned to weather radio or other radio and tv stations for further updates. && $$ Apffel
605 WGUS61 KBUF 130757 FFABUF URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Buffalo NY 357 AM EDT Thu Jul 13 2017 NYZ001>005-010>014-019>021-085-131600- /O.EXT.KBUF.FF.A.0004.000000T0000Z-170713T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie- Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, Buffalo, Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 357 AM EDT Thu Jul 13 2017 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH THIS AFTERNOON... The Flash Flood Watch is now in effect for * Western and portions of Central New York. * Through this afternoon. * Widespread showers and thunderstorms will move across the region this morning. A stalled boundary from near Buffalo to the Finger Lakes may act as a focus for locally very heavy rainfall and numerous storms training over the same locations, which may result in flash flooding. The flash flood threat will diminish from west to east this afternoon. * Urban areas, small streams, and areas in steep terrain will be at the highest risk for flash flooding through Thursday morning. 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. && $$ Church
830 WGUS61 KBUF 131527 FFABUF Flood Watch National Weather Service Buffalo NY 1127 AM EDT Thu Jul 13 2017 NYZ001>005-010>014-019>021-085-132100- /O.CON.KBUF.FF.A.0004.000000T0000Z-170713T2100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie- Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, Buffalo, Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 1127 AM EDT Thu Jul 13 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... The Flash Flood Watch continues for * Portions of central and western New York...including the following counties...in central New York...Northern Cayuga. In western New York...Allegany...Cattaraugus...Chautauqua... Genesee...Livingston...Monroe...Niagara...Northern Erie... Ontario...Orleans...Southern Erie...Wayne and Wyoming. * Until 5 PM EDT this afternoon. * Widespread showers and thunderstorms producing heavy rain continue to move across the region today. Flooding has been reported across portions of the watch area already. The flash flood threat will diminish from west to east this afternoon. * Urban areas, small streams, and areas in steep terrain will continue to be at the highest risk for flash flooding through Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means the threat of flash flooding exists along rivers and creeks. If you are in the watch area you should monitor weather conditions closely. Be ready to move to higher ground if flooding is observed or a warning is issued. Stay tuned to weather radio or other radio and tv stations for further updates. && $$ Wood
414 WGUS61 KBUF 131745 FFABUF URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Buffalo NY 145 PM EDT Thu Jul 13 2017 NYZ001>005-010>014-019>021-085-140145- /O.EXT.KBUF.FF.A.0004.000000T0000Z-170714T1900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie- Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, Buffalo, Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 145 PM EDT Thu Jul 13 2017 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH FRIDAY AFTERNOON... The Flash Flood Watch is now in effect for * Portions of central and western New York...including the following counties...in central New York...Northern Cayuga. In western New York...Allegany...Cattaraugus...Chautauqua... Genesee...Livingston...Monroe...Niagara...Northern Erie... Ontario...Orleans...Southern Erie...Wayne and Wyoming. * Through Friday afternoon. * Widespread showers and thunderstorms producing heavy rain continue to move across the region today. Flooding has been reported across portions of the watch area already. While the flash flood threat will generally diminish for a time this afternoon, another area of low pressure moving across the area tonight will elevate the flash flood potential across the region once again tonight into Friday. * Urban areas, small streams, and areas in steep terrain will continue to be at the highest risk for flash flooding through Thursday morning. 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. && $$ WOOD
374 WGUS61 KBUF 140134 FFABUF Flood Watch National Weather Service Buffalo NY 934 PM EDT Thu Jul 13 2017 NYZ001>005-010>014-019>021-085-140945- /O.CON.KBUF.FF.A.0004.000000T0000Z-170714T1900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie- Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, Buffalo, Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 934 PM EDT Thu Jul 13 2017 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON... The Flash Flood Watch continues for * Portions of central and western New York...including the following counties...in central New York...Northern Cayuga. In western New York...Allegany...Cattaraugus...Chautauqua... Genesee...Livingston...Monroe...Niagara...Northern Erie... Ontario...Orleans...Southern Erie...Wayne and Wyoming. * Through Friday afternoon. * An additional round of showers and thunderstorms is expected across the region overnight into Friday. This additional rainfall could be locally heavy and will fall onto already saturated ground elevating the potential for flash flooding. * Urban areas, small streams, and areas in steep terrain will continue to be at the highest risk for flash flooding into Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. If you are in the watch area you should monitor weather conditions closely. Be ready to move to higher ground if flooding is observed or a warning is issued. Stay tuned to weather radio or other radio and tv stations for further updates. && $$ TMA
611 WGUS61 KBUF 140729 FFABUF Flood Watch National Weather Service Buffalo NY 329 AM EDT Fri Jul 14 2017 NYZ001>005-010>014-019>021-085-140830- /O.CAN.KBUF.FF.A.0004.000000T0000Z-170714T1900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie- Genesee-Wyoming-Livingston-Ontario-Chautauqua-Cattaraugus- Allegany-Southern Erie- Including the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, Buffalo, Batavia, Warsaw, Geneseo, Canandaigua, Jamestown, Olean, Wellsville, Orchard Park, and Springville 329 AM EDT Fri Jul 14 2017 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central and western New York has been cancelled. Showers and thunderstorms are expected to form inland from the lake breezes by midday and early afternoon, however these storms will move along fast enough, and over areas that received less rainfall yesterday, which will limit the flash flood threat today. Area creeks and streams will continue to run high for the next day or two, but are expected to remain within bankfull. $$ Church
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 7:43 AM EDT | Special Weather Statement | BUF | Cattaraugus | 62 min |
| Jul 12, 8:37 AM EDT | Special Weather Statement | BUF | Erie, Genesee, Wyoming | 38 min |
| Jul 12, 9:03 AM EDT | Special Weather Statement | BUF | Genesee, Livingston | 42 min |
| Jul 12, 9:42 AM EDT | Special Weather Statement | BUF | Monroe | 63 min |
| Jul 12, 10:49 AM EDT | Special Weather Statement | BUF | Wayne | 41 min |
| Jul 12, 6:24 PM EDT | Special Marine Warning | BUF | 51 min | |
| Jul 12, 7:12 PM EDT | Special Marine Warning | BUF | 63 min |
Nearby
Flash Flood Watches in New York, 2017Every flash flood watch in 2017
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.