Alert archive / Ohio / Flash Flood Watches in 2021
Flash Flood Watch 1, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood watch at Jul 12, 2021, 3:18 AM EDT for Crawford County, Erie County, Pennsylvania; 11 counties in Ohio. It took effect at Jul 12, 2021, 12:00 PM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2021, 3:18 AM EDT (07:18 UTC)
- In effect from
- Jul 12, 2021, 12:00 PM EDT
- Expired
- Jul 12, 2021, 9:05 PM EDT
- In force
- 9 hr
- Issued by
- NWS Cleveland, OH
- Flood severity
- None
Counties Ashtabula County, OH, Cuyahoga County, OH, Erie County, OH, Geauga County, OH, Huron County, OH, Lake County, OH, Lorain County, OH, Medina County, OH, Sandusky County, OH, Seneca County, OH, Summit County, OH, Crawford County, PA, Erie County, PA
The radar
The Cleveland radar (KCLE), 14 km from the middle of the area, began a volume at 07:22 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, 7.3 hours before the alert went out and 180 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
- 49 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 822 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
331 WGUS61 KCLE 120718 FFACLE URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Cleveland OH 318 AM EDT Mon Jul 12 2021 .A moist air mass will be in place across the Ohio Valley with afternoon and evening thunderstorms anticipated in the vicinity of a warm front. A lake breeze is also possible this afternoon and may enhance rainfall rates and thunderstorm coverage, especially along the Northeast Ohio and Northwest Pennsylvania lakeshores. OHZ008>014-018>021-089-PAZ001>003-121530- /O.NEW.KCLE.FF.A.0001.210712T1600Z-210713T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Seneca- Huron-Medina-Summit-Ashtabula Lakeshore-Northern Erie-Southern Erie- Crawford- Including the cities of Wadsworth, Norwalk, Middlefield, Sandusky, Willard, Meadville, Roaming Shores, Clyde, Jefferson, Ashtabula, Eastlake, Brunswick, Tiffin, Cleveland, Bellevue, Geneva, North Ridgeville, Elyria, Fremont, Medina, Willoughby, Avon Lake, Akron, Edinboro, Painesville, Chesterland, Erie, Lorain, Mentor, Titusville, Willowick, Orwell, Conneaut, Corry, Union City, Andover, South Russell, Wickliffe, Bainbridge, Burton, Huron, Chardon, and Fostoria 318 AM EDT Mon Jul 12 2021 ...FLASH FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING... The National Weather Service in Cleveland has issued a * Flash Flood Watch for portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Erie, Geauga, Huron, Lake, Lorain, Medina, Sandusky, Seneca and Summit. In northwest Pennsylvania, Crawford, Northern Erie and Southern Erie. * From Noon EDT today through this evening * Thunderstorms will develop early this afternoon into the evening hours, with the heaviest rain likely to occur across portions of Northeast Ohio into Northwest Pennsylvania. Flash flood guidances of 1 and 3-hour are generally 2 inches or less through the watch area. Rainfall totals of 1 to 3 inches are expected across the watch area, with locally heavier amounts possible, especially during the 2 to 8 PM time frame. PRECAUTIONARY/PREPAREDNESS ACTIONS... Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$ Kahn
3 follow-up statements
378 WGUS61 KCLE 121509 FFACLE Flood Watch National Weather Service Cleveland OH 1109 AM EDT Mon Jul 12 2021 OHZ008>014-018>021-089-PAZ001>003-122315- /O.CON.KCLE.FF.A.0001.210712T1600Z-210713T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Seneca- Huron-Medina-Summit-Ashtabula Lakeshore-Northern Erie-Southern Erie- Crawford- Including the cities of Wadsworth, Norwalk, Middlefield, Sandusky, Willard, Meadville, Roaming Shores, Clyde, Jefferson, Ashtabula, Eastlake, Brunswick, Tiffin, Cleveland, Bellevue, Geneva, North Ridgeville, Elyria, Fremont, Medina, Willoughby, Avon Lake, Akron, Edinboro, Painesville, Chesterland, Erie, Lorain, Mentor, Titusville, Willowick, Orwell, Conneaut, Corry, Union City, Andover, South Russell, Wickliffe, Bainbridge, Burton, Huron, Chardon, and Fostoria 1109 AM EDT Mon Jul 12 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... The Flash Flood Watch continues for * Portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Erie, Geauga, Huron, Lake, Lorain, Medina, Sandusky, Seneca and Summit. In northwest Pennsylvania, Crawford, Northern Erie and Southern Erie. * Until 10 PM EDT this evening * Thunderstorms will develop early this afternoon into the evening hours, with the heaviest rain likely to occur across portions of Northeast Ohio into Northwest Pennsylvania. Flash flood guidances of 1 and 3-hour are generally 2 inches or less through the watch area. Rainfall totals of 1 to 3 inches are expected across the watch area, with locally heavier amounts possible, especially during the 2 to 8 PM time frame. PRECAUTIONARY/PREPAREDNESS ACTIONS... Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$ Campbell
120 WGUS61 KCLE 121919 FFACLE Flood Watch National Weather Service Cleveland OH 319 PM EDT Mon Jul 12 2021 OHZ008>014-018>021-089-PAZ001>003-130200- /O.CON.KCLE.FF.A.0001.000000T0000Z-210713T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Seneca- Huron-Medina-Summit-Ashtabula Lakeshore-Northern Erie-Southern Erie- Crawford- Including the cities of Wadsworth, Norwalk, Middlefield, Sandusky, Willard, Meadville, Roaming Shores, Clyde, Jefferson, Ashtabula, Eastlake, Brunswick, Tiffin, Cleveland, Bellevue, Geneva, North Ridgeville, Elyria, Fremont, Medina, Willoughby, Avon Lake, Akron, Edinboro, Painesville, Chesterland, Erie, Lorain, Mentor, Titusville, Willowick, Orwell, Conneaut, Corry, Union City, Andover, South Russell, Wickliffe, Bainbridge, Burton, Huron, Chardon, and Fostoria 319 PM EDT Mon Jul 12 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM EDT THIS EVENING... The Flash Flood Watch continues for * Portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Erie, Geauga, Huron, Lake, Lorain, Medina, Sandusky, Seneca and Summit. In northwest Pennsylvania, Crawford, Northern Erie and Southern Erie. * Until 10 PM EDT this evening * Thunderstorms will continue into the evening hours, with the heaviest rain likely to occur across portions of Northern Ohio into Northwest Pennsylvania. Additional rainfall amounts of 1 to 3 inches are possible across the watch area, with locally heavier amounts possible, especially during the 3 to 8 PM time frame. PRECAUTIONARY/PREPAREDNESS ACTIONS... Flash flooding is a very dangerous situation. Monitor the forecast and be prepared to take action should Flash Flood Warnings be issued or if flooding develops. && $$ Garnet
739 WGUS61 KCLE 130105 FFACLE Flood Watch National Weather Service Cleveland OH 905 PM EDT Mon Jul 12 2021 OHZ008>014-018>021-089-PAZ001>003-130215- /O.CAN.KCLE.FF.A.0001.000000T0000Z-210713T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Seneca- Huron-Medina-Summit-Ashtabula Lakeshore-Northern Erie-Southern Erie- Crawford- Including the cities of Wadsworth, Norwalk, Middlefield, Sandusky, Willard, Meadville, Roaming Shores, Clyde, Jefferson, Ashtabula, Eastlake, Brunswick, Tiffin, Cleveland, Bellevue, Geneva, North Ridgeville, Elyria, Fremont, Medina, Willoughby, Avon Lake, Akron, Edinboro, Painesville, Chesterland, Erie, Lorain, Mentor, Titusville, Willowick, Orwell, Conneaut, Corry, Union City, Andover, South Russell, Wickliffe, Bainbridge, Burton, Huron, Chardon, and Fostoria 905 PM EDT Mon Jul 12 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of Ohio and northwest Pennsylvania, including the following areas, in Ohio, Ashtabula Inland, Ashtabula Lakeshore, Cuyahoga, Erie, Geauga, Huron, Lake, Lorain, Medina, Sandusky, Seneca and Summit. In northwest Pennsylvania, Crawford, Northern Erie and Southern Erie has been cancelled. The Flood Watch is cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 6:51 PM EDT | Areal Flood Advisory | CLE | Crawford | 2 hr |
| Jul 11, 8:39 PM EDT | Areal Flood Advisory | CLE | Ashland, Richland | 3 hr |
| Jul 12, 11:20 AM EDT | Areal Flood Advisory | CLE | Cuyahoga, Lorain | 3 hr |
| Jul 12, 11:59 AM EDT | Flash Flood Warning | CLE | Lorain, Medina | 4 hr |
| Jul 12, 3:41 PM EDT | Special Weather Statement | CLE | Huron | 34 min |
| Jul 12, 4:07 PM EDT | Special Weather Statement | CLE | Sandusky, Seneca | 38 min |
| Jul 12, 4:30 PM EDT | Flash Flood Warning | CLE | Ashland, Cuyahoga, Lorain, Medina | 6 hr |
| Jul 12, 4:32 PM EDT | Special Weather Statement | CLE | Medina | 28 min |
| Jul 12, 5:11 PM EDT | Areal Flood Advisory | CLE | Cuyahoga, Geauga, Portage, Summit | 6 hr |
| Jul 12, 5:33 PM EDT | Special Weather Statement | CLE | Stark | 27 min |
| Jul 12, 5:34 PM EDT | Flash Flood Warning | CLE | Cuyahoga | 2 hr |
Nearby
Flash Flood Watches in Ohio, 2021Flash Flood Watches in Pennsylvania, 2021Every flash flood watch in 2021
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.