Alert archive / Ohio / Flash Flood Warnings in 2020
Flash Flood Warning 21, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Oct 21, 2020, 5:11 AM EDT for Cuyahoga County, Ohio. It was in force for 4 hr. 7 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
- Oct 21, 2020, 5:11 AM EDT (09:11 UTC)
- Expired
- Oct 21, 2020, 9:32 AM EDT
- In force
- 4 hr
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
- Flood severity
- None
County Cuyahoga County, OH
The radar
The Cleveland radar (KCLE), 16 km from the middle of the area, began a volume at 09:09 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 21, 5:15 AM EDT | FLOOD | 1 Wsw Cleveland, OH | I-90 E CLOSED TO INNERBELT AND I-71/JENNINGS SOUTHBOUND. |
| Oct 21, 5:15 AM EDT | FLOOD | 2 Sw Bratenahl, OH | MARTIN LUTHER KING JR. DR. SOUTHBOUND CLOSED JUST SOUTH OF I-90 AND BETWEEN EAST BLVD & LIBERTY RD. DUE TO FLOODING. |
| Oct 21, 5:21 AM EDT | FLOOD | 2 Ese Lakewood, OH | W 117TH ST SOUTHBOUND CLOSED AT MADISON AVE DUE TO FLOODING. |
| Oct 21, 6:07 AM EDT | FLOOD | 2 Ne Brook Park, OH | W 150TH ST. NORTH OF I-480 CLOSED DUE TO FLOODING. |
| Oct 21, 7:29 AM EDT | FLASH FLOOD | 2 Ese North Olmsted, OH | VALLEY PARKWAY AND CEDAR POINT RD IN ROCKY RIVER RESERVATION CLOSED DUE TO FLOODING. ONE PERSON RESCUED FROM ROOF OF CAR TRAPPED IN MOVING WATER. |
| Oct 21, 7:40 AM EDT | FLOOD | 1 W Newburgh Heights, OH | JENNINGS RD. FROM DENISON TO HARVARD CLOSED DUE TO FLOODING. SEVERAL CARS WERE TRAPPED IN WATER. |
| Oct 21, 7:51 AM EDT | HEAVY RAIN 2.49 | 2 Nw Brook Park, OH | ASOS STATION KCLE CLEVELAND. RAINFALL SINCE MIDNIGHT. |
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 00:00Z, 9.2 hours before the alert went out and 174 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
- 524 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
352
WGUS51 KCLE 210911
FFWCLE
OHC035-211345-
/O.NEW.KCLE.FF.W.0021.201021T0911Z-201021T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cleveland OH
511 AM EDT Wed Oct 21 2020
The National Weather Service in Cleveland has issued a
* Flash Flood Warning for...
Cuyahoga County in northeastern Ohio...
* Until 945 AM EDT.
* At 511 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
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, Lakewood, Euclid, Cleveland Heights,
Strongsville, Westlake, North Royalton, North Ridgeville, Solon,
Avon Lake, Warrensville Heights, Highland Hills, North Olmsted,
Garfield Heights, Shaker Heights, Maple Heights, South Euclid,
Avon and Parma Heights.
Additional rainfall amounts of 0.5 to 1.5 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
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 4148 8197 4150 8171 4163 8149 4157 8149
4156 8139 4138 8139 4135 8156 4135 8159
4135 8160 4134 8159 4133 8162 4128 8188
4136 8188 4135 8197
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5-1.5 INCHES IN 2 HOURS
$$
Clark1 follow-up statement
682
WGUS71 KCLE 211332
FFSCLE
Flash Flood Statement
National Weather Service Cleveland OH
932 AM EDT Wed Oct 21 2020
OHC035-211342-
/O.CAN.KCLE.FF.W.0021.000000T0000Z-201021T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cuyahoga OH-
932 AM EDT Wed Oct 21 2020
...FLASH FLOOD WARNING IS CANCELLED FOR CUYAHOGA COUNTY...
Flood waters are receding and heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 4148 8197 4150 8171 4163 8149 4157 8149
4156 8139 4138 8139 4135 8156 4135 8159
4135 8160 4134 8159 4133 8162 4128 8188
4136 8188 4135 8197
$$
JaszkaThe office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 21, 3:27 AM EDT | Areal Flood Advisory | CLE | Cuyahoga, Lorain | 4 hr |
| Oct 21, 5:22 AM EDT | Areal Flood Advisory | CLE | Ashtabula, Geauga, Lake | 28 min |
| Oct 21, 5:50 AM EDT | Flash Flood Warning | CLE | Geauga, Lake | 4 hr |
| Oct 21, 6:27 AM EDT | Areal Flood Advisory | CLE | Ashtabula | 3 hr |
| Oct 21, 6:50 AM EDT | River Flood Warning | CLE | Lake | 6 hr |
Nearby
Flash Flood Warnings in Ohio, 2020Every flash flood warning in 2020
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.