Alert archive / Ohio / Flash Flood Watches in 2011
Flash Flood Watch 2, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood watch at Jul 23, 2011, 3:40 AM EDT for 27 counties in Ohio. It took effect at Jul 23, 2011, 4:00 AM EDT. It was in force for 26 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 2011, 3:40 AM EDT (07:40 UTC)
- In effect from
- Jul 23, 2011, 4:00 AM EDT
- Expired
- Jul 24, 2011, 6:00 AM EDT
- In force
- 26 hr
- Issued by
- NWS Cleveland, OH
- Flood severity
- None
All 27 counties
Ashland County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Geauga County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH
The radar
The Cleveland radar (KCLE), 52 km from the middle of the area, began a volume at 07:42 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
Pittsburgh, PA (KPIT), launched 00:00Z, 7.7 hours before the alert went out and 201 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
- 111 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1450 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -46 m²/s²
- 0-3 km storm-relative helicity
- -7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
421 WGUS61 KCLE 230740 FFACLE URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE CLEVELAND OH 340 AM EDT SAT JUL 23 2011 OHZ003-006>013-017>023-027>033-036>038-047-231545- /O.NEW.KCLE.FF.A.0002.110723T0800Z-110724T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA- HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT- CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW- HOLMES-KNOX- INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON... FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON... FINDLAY...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN... UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...ASHLAND... WOOSTER...CANTON...YOUNGSTOWN...MARION...MOUNT GILEAD... MILLERSBURG...MOUNT VERNON 340 AM EDT SAT JUL 23 2011 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTH CENTRAL OHIO... NORTHEAST OHIO AND NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL OHIO...ASHLAND...CRAWFORD...ERIE OH... HURON...KNOX...LORAIN...MARION...MORROW AND RICHLAND. IN NORTHEAST OHIO...CUYAHOGA...GEAUGA...HOLMES...LAKE... MAHONING...MEDINA...PORTAGE...STARK...SUMMIT...TRUMBULL AND WAYNE. IN NORTHWEST OHIO...HANCOCK...LUCAS...OTTAWA... SANDUSKY...SENECA...WOOD AND WYANDOT. * THROUGH LATE TONIGHT * SHOWERS AND THUNDERSTORMS ARE LIKELY TODAY AND SOME OF THE THUNDERSTORMS WILL HAVE HEAVY RAIN. RECENT RAINS HAVE MADE THE GROUND WET...AND ANY ADDITIONAL HEAVY RAIN WILL BRING THE POTENTIAL FOR FLOODING. * THERE IS ALSO A CHANCE FOR REPEAT THUNDERSTORMS TODAY AND TONIGHT. AREAS THAT GET MULTIPLE THUNDERSTORMS WILL BE AT RISK FOR FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS AND LOW LYING AREAS. 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 FOR FURTHER UPDATES. && $$
3 follow-up statements
543 WGUS61 KCLE 231355 FFACLE FLOOD WATCH NATIONAL WEATHER SERVICE CLEVELAND OH 955 AM EDT SAT JUL 23 2011 OHZ003-006>013-017>023-027>033-036>038-047-232200- /O.CON.KCLE.FF.A.0002.000000T0000Z-110724T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA- HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT- CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW- HOLMES-KNOX- INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON... FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON... FINDLAY...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN... UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...ASHLAND... WOOSTER...CANTON...YOUNGSTOWN...MARION...MOUNT GILEAD... MILLERSBURG...MOUNT VERNON 955 AM EDT SAT JUL 23 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTH CENTRAL OHIO...NORTHEAST OHIO AND NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL OHIO... ASHLAND...CRAWFORD...ERIE OH...HURON...KNOX...LORAIN... MARION...MORROW AND RICHLAND. IN NORTHEAST OHIO...CUYAHOGA... GEAUGA...HOLMES...LAKE...MAHONING...MEDINA...PORTAGE...STARK... SUMMIT...TRUMBULL AND WAYNE. IN NORTHWEST OHIO...HANCOCK... LUCAS...OTTAWA...SANDUSKY...SENECA...WOOD AND WYANDOT. * THROUGH LATE TONIGHT * SHOWERS AND THUNDERSTORMS ARE LIKELY TODAY AND SOME OF THE THUNDERSTORMS WILL HAVE HEAVY RAIN. RECENT RAINS HAVE MADE THE GROUND WET...AND ANY ADDITIONAL HEAVY RAIN WILL BRING THE POTENTIAL FOR FLOODING. * THERE IS ALSO A CHANCE FOR REPEAT THUNDERSTORMS TODAY AND TONIGHT. AREAS THAT GET MULTIPLE THUNDERSTORMS WILL BE AT RISK FOR FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS AND LOW LYING AREAS. 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 FOR FURTHER UPDATES. && $$
092 WGUS61 KCLE 232000 FFACLE FLOOD WATCH NATIONAL WEATHER SERVICE CLEVELAND OH 400 PM EDT SAT JUL 23 2011 OHZ003-006>013-017>023-027>033-036>038-047-240400- /O.CON.KCLE.FF.A.0002.000000T0000Z-110724T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA- HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT- CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW- HOLMES-KNOX- INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON... FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON... FINDLAY...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN... UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...ASHLAND... WOOSTER...CANTON...YOUNGSTOWN...MARION...MOUNT GILEAD... MILLERSBURG...MOUNT VERNON 400 PM EDT SAT JUL 23 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTH CENTRAL OHIO...NORTHEAST OHIO AND NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL OHIO... ASHLAND...CRAWFORD...ERIE OH...HURON...KNOX...LORAIN... MARION...MORROW AND RICHLAND. IN NORTHEAST OHIO...CUYAHOGA... GEAUGA...HOLMES...LAKE...MAHONING...MEDINA...PORTAGE...STARK... SUMMIT...TRUMBULL AND WAYNE. IN NORTHWEST OHIO...HANCOCK... LUCAS...OTTAWA...SANDUSKY...SENECA...WOOD AND WYANDOT. * THROUGH LATE TONIGHT * THUNDERSTORMS WILL OCCUR ACROSS THE AREA THIS EVENING AND EARLY TONIGHT. SOME OF THE THUNDERSTORMS WILL CONTAIN HEAVY RAIN. RECENT RAINS HAVE MADE THE GROUND WET...AND ANY ADDITIONAL HEAVY RAIN WILL BRING THE POTENTIAL FOR FLOODING. * THERE IS ALSO A CHANCE FOR REPEAT THUNDERSTORMS. AREAS THAT GET MULTIPLE THUNDERSTORMS WILL BE AT AN INCREASED RISK FOR FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS AND LOW LYING AREAS. 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 FOR FURTHER UPDATES. && $$
915 WGUS61 KCLE 240234 FFACLE FLOOD WATCH NATIONAL WEATHER SERVICE CLEVELAND OH 1034 PM EDT SAT JUL 23 2011 OHZ003-006>013-017>023-027>033-036>038-047-241000- /O.CON.KCLE.FF.A.0002.000000T0000Z-110724T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA- HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT- CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW- HOLMES-KNOX- INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON... FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON... FINDLAY...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN... UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...ASHLAND... WOOSTER...CANTON...YOUNGSTOWN...MARION...MOUNT GILEAD... MILLERSBURG...MOUNT VERNON 1034 PM EDT SAT JUL 23 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 AM EDT SUNDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTH CENTRAL OHIO...NORTHEAST OHIO AND NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTH CENTRAL OHIO... ASHLAND...CRAWFORD...ERIE OH...HURON...KNOX...LORAIN... MARION...MORROW AND RICHLAND. IN NORTHEAST OHIO...CUYAHOGA... GEAUGA...HOLMES...LAKE...MAHONING...MEDINA...PORTAGE...STARK... SUMMIT...TRUMBULL AND WAYNE. IN NORTHWEST OHIO...HANCOCK... LUCAS...OTTAWA...SANDUSKY...SENECA...WOOD AND WYANDOT. * UNTIL 6 AM EDT SUNDAY * ANY ADDITIONAL THUNDERSTORMS THAT DEVELOP OVERNIGHT WILL CONTINUE TO BE A FLOODING THREAT WITH HEAVY RAINFALL. FROM THE THUNDERSTORMS THAT TOOK PLACE SATURDAY EVENING...NUMEROUS PLACES CONTINUE TO HAVE HIGH WATER OR EXPERIENCED HIGH WATER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THE THREAT OF FLASH FLOODING EXISTS ALONG RIVERS AND CREEKS AND LOW LYING AREAS. IF YOU ARE IN THE WATCH AREA YOU SHOULD MONITOR WEATHER CONDITIONS CLOSELY. BE READY TO MOVE TO HIGHER GROUND IF FLOODING IS OBSERVED OR A WARNING IS ISSUED. STAY TUNED TO WEATHER RADIO FOR FURTHER UPDATES. && $$ OUDEMAN
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 11:48 PM EDT | Special Marine Warning | CLE | 87 min | |
| Jul 23, 12:00 AM EDT | Severe Thunderstorm Warning | CLE | Holmes, Knox | 60 min |
| Jul 23, 1:29 AM EDT | Areal Flood Advisory | CLE | Knox | 3 hr |
| Jul 23, 2:46 AM EDT | Flash Flood Warning | CLE | Seneca | 11 hr |
| Jul 23, 4:06 AM EDT | Areal Flood Advisory | CLE | Lorain | 4 hr |
| Jul 23, 6:45 AM EDT | Areal Flood Advisory | CLE | Ashland, Crawford, Huron, Lorain, Richland | 3 hr |
| Jul 23, 8:50 AM EDT | Areal Flood Advisory | CLE | Ottawa, Sandusky | 4 hr |
| Jul 23, 2:00 PM EDT | Areal Flood Warning | CLE | Seneca | 8 hr |
| Jul 23, 2:38 PM EDT | Areal Flood Advisory | CLE | Wyandot | 4 hr |
| Jul 23, 2:43 PM EDT | Areal Flood Advisory | CLE | Marion, Morrow | 4 hr |
| Jul 23, 3:07 PM EDT | Flash Flood Warning | CLE | Wyandot | 6 hr |
| Jul 23, 3:59 PM EDT | Heat Advisory | CLE | Ashland, Crawford, Hancock, Holmes, Huron, Knox and 8 more | 23 hr |
| Jul 23, 5:20 PM EDT | Severe Thunderstorm Warning | CLE | Hancock | 55 min |
| Jul 23, 5:25 PM EDT | Areal Flood Advisory | CLE | Holmes | 3 hr |
| Jul 23, 5:44 PM EDT | Special Marine Warning | CLE | 76 min | |
| Jul 23, 5:53 PM EDT | Severe Thunderstorm Warning | CLE | Sandusky, Seneca, Wood | 67 min |
| Jul 23, 5:58 PM EDT | Severe Thunderstorm Warning | CLE | Lorain | 62 min |
| Jul 23, 6:16 PM EDT | Special Marine Warning | CLE | 89 min | |
| Jul 23, 6:26 PM EDT | Areal Flood Advisory | CLE | Wood | 4 hr |
| Jul 23, 6:52 PM EDT | Areal Flood Advisory | CLE | Cuyahoga | 3 hr |
| Jul 23, 7:12 PM EDT | Severe Thunderstorm Warning | CLE | Lucas, Ottawa, Sandusky, Seneca, Wood | 78 min |
| Jul 23, 7:15 PM EDT | Special Marine Warning | CLE | 2 hr | |
| Jul 23, 7:16 PM EDT | Severe Thunderstorm Warning | CLE | Cuyahoga, Geauga | 44 min |
| Jul 23, 7:36 PM EDT | Flash Flood Warning | CLE | Ottawa, Sandusky | 6 hr |
| Jul 23, 7:38 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Geauga, Trumbull | 67 min |
| Jul 23, 7:56 PM EDT | Areal Flood Advisory | CLE | Hancock | 3 hr |
Nearby
Flash Flood Watches in Ohio, 2011Every flash flood watch in 2011
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.