Alert archive / Ohio / Flash Flood Warnings in 2021
Flash Flood Warning 12, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Jul 12, 2021, 4:30 PM EDT for 4 counties in Ohio. It was in force for 6 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 12, 2021, 4:30 PM EDT (20:30 UTC)
- Expired
- Jul 12, 2021, 10:30 PM EDT
- In force
- 6 hr
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
- Flood severity
- None
Counties Ashland County, OH, Cuyahoga County, OH, Lorain County, OH, Medina County, OH
The radar
The Cleveland radar (KCLE), 25 km from the middle of the area, began a volume at 20:30 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 12, 4:50 PM EDT | FLOOD | 6 Wsw Brunswick, OH | WEST LAW RD CLOSED DUE TO FLOODING. |
| Jul 12, 5:00 PM EDT | FLOOD | 1 Sw Berea, OH | WYLESWOOD DR AT BEELER DR CLOSED DUE TO FLOODING. ROAD HAS SINCE REOPENED. |
| Jul 12, 5:15 PM EDT | FLOOD | 4 Sw Strongsville, OH | FLOODING ON BOSTON RD NEAR BOONE RD. |
| Jul 12, 5:27 PM EDT | FLOOD | 1 Wnw Brook Park, OH | FLOWING WATER ON SNOW RD AT STATE ROUTE 237. ROAD IS FLOODED. |
| Jul 12, 5:53 PM EDT | FLOOD | Middleburg Heights, OH | LEFT LANE OF I-71 SOUTH BEYOND BAGLEY RD BLOCKED DUE TO FLOODING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 8.5 hours before the alert went out and 175 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
- 173 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 637 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
928
WGUS51 KCLE 122030
FFWCLE
OHC005-035-093-103-130230-
/O.NEW.KCLE.FF.W.0012.210712T2030Z-210713T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cleveland OH
430 PM EDT Mon Jul 12 2021
The National Weather Service in Cleveland has issued a
* Flash Flood Warning for...
Northeastern Ashland County in north central Ohio...
Central Lorain County in north central Ohio...
Southern Cuyahoga County in northeastern Ohio...
Central Medina County in northeastern Ohio...
* Until 1030 PM EDT.
* At 430 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 3 inches of rain have fallen. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Cleveland, Elyria, Medina, Parma, Strongsville, Brunswick, North
Royalton, North Ridgeville, Macedonia, Grafton, Wellington, Lodi,
Polk, North Olmsted, Garfield Heights, Maple Heights, Parma
Heights, Broadview Heights, Brook Park and Berea.
Additional rainfall amounts of 1 to 3 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses
as well as other drainage areas and low lying spots.
&&
LAT...LON 4107 8226 4137 8224 4140 8186 4141 8148
4135 8148 4135 8159 4131 8158 4128 8156
4128 8169 4099 8204 4099 8213 4090 8213
4093 8231
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Campbell3 follow-up statements
709
WGUS71 KCLE 122251
FFSCLE
Flash Flood Statement
National Weather Service Cleveland OH
651 PM EDT Mon Jul 12 2021
OHC005-122301-
/O.CAN.KCLE.FF.W.0012.000000T0000Z-210713T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ashland OH-
651 PM EDT Mon Jul 12 2021
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN ASHLAND
COUNTY...
Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.
A Flash Flood Watch remains in effect until 1000 PM EDT for portions
of Ohio and northwest Pennsylvania.
LAT...LON 4137 8217 4140 8186 4141 8148 4135 8148
4135 8159 4128 8156 4128 8169 4099 8204
4099 8217
$$
OHC035-093-103-130230-
/O.CON.KCLE.FF.W.0012.000000T0000Z-210713T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cuyahoga OH-Lorain OH-Medina OH-
651 PM EDT Mon Jul 12 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT THIS
EVENING FOR CENTRAL LORAIN, SOUTHERN CUYAHOGA AND CENTRAL MEDINA
COUNTIES...
At 651 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between 1
and 3 inches of rain have fallen. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Cleveland, Elyria, Medina, Parma, Strongsville, Brunswick, North
Royalton, North Ridgeville, Macedonia, Grafton, Lodi, North Olmsted,
Garfield Heights, Maple Heights, Parma Heights, Broadview Heights,
Brook Park, Berea, Middleburg Heights and Brecksville.
Additional rainfall amounts up to 1 inch are possible in the warned
area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses
as well as other drainage areas and low lying spots.
&&
LAT...LON 4137 8217 4140 8186 4141 8148 4135 8148
4135 8159 4128 8156 4128 8169 4099 8204
4099 8217
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Campbell829
WGUS71 KCLE 130000
FFSCLE
Flash Flood Statement
National Weather Service Cleveland OH
800 PM EDT Mon Jul 12 2021
OHC035-093-103-130230-
/O.CON.KCLE.FF.W.0012.000000T0000Z-210713T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cuyahoga OH-Lorain OH-Medina OH-
800 PM EDT Mon Jul 12 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT THIS
EVENING FOR SOUTHEASTERN LORAIN, SOUTHWESTERN CUYAHOGA AND
NORTHWESTERN MEDINA COUNTIES...
At 800 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain moved across the warned area
earlier this afternoon. Between 2 and 4 inches of rain have fallen.
Flash flooding is ongoing or expected to begin shortly, primarily in
the vicinity of the Rocky River and Big Creek.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Cleveland, Parma, Strongsville, Brunswick, North Royalton, North
Ridgeville, Grafton, North Olmsted, Parma Heights, Brook Park,
Berea, Middleburg Heights, Olmsted Falls, Eaton, Lagrange,
Penfield, Spencer, Valley City and Eaton Estates.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses
as well as other drainage areas and low lying spots.
&&
LAT...LON 4123 8217 4139 8197 4140 8170 4126 8177
4106 8206 4102 8217
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Sefcovic077
WGUS71 KCLE 130225
FFSCLE
Flash Flood Statement
National Weather Service Cleveland OH
1025 PM EDT Mon Jul 12 2021
OHC035-093-103-130235-
/O.EXP.KCLE.FF.W.0012.000000T0000Z-210713T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cuyahoga OH-Lorain OH-Medina OH-
1025 PM EDT Mon Jul 12 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 1030 PM EDT THIS EVENING FOR
SOUTHEASTERN LORAIN, SOUTHWESTERN CUYAHOGA AND NORTHWESTERN MEDINA
COUNTIES...
Flood waters have receded and heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 4123 8217 4139 8197 4140 8170 4126 8177
4106 8206 4102 8217
$$
JaszkaThe office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 8:39 PM EDT | Areal Flood Advisory | CLE | Ashland, Richland | 3 hr |
| Jul 12, 3:18 AM EDT | Flash Flood Watch | CLE | Ashtabula, Cuyahoga, Erie, Geauga, Huron, Lake and 5 more | 18 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, 4:32 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 Warnings in Ohio, 2021Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.