Alert archive / Ohio / Flash Flood Warnings in 2020

Flash Flood Warning 1, NWS Cleveland, OH

March 29, 2020Cuyahoga County, Lorain County, Ohio

NWS Cleveland, OH issued this flash flood warning at Mar 29, 2020, 1:58 AM EDT for Cuyahoga County, Lorain County, Ohio. It was in force for 6 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: Mar 29, 2020, 1:58 AM EDT (05:58 UTC)
Expired: Mar 29, 2020, 8:00 AM EDT
In force: 6 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Flood severity: None

Counties Cuyahoga County, OH, Lorain County, OH

The radar

The Cleveland radar (KCLE), 16 km from the middle of the area, began a volume at 05:59 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
Mar 29, 2:44 AM EDT	FLASH FLOOD	Parma, OH	MULIPLE REPORTS OF FLASH FLOODING AND WATER ENTERING INTO BASEMENTS ACROSS CUYAHOGA COUNTY. SOCIAL MEDIA PICTURES SHOW FLOODED NEIGHBORHOOD STREETS AT LEAST SEVERAL FEET DEEP UP TO FOUNDATIONS OF HOUSES. MULTIPLE REPORTS OF CARS STRANDED OR STALLED IN FLOOD WA
Mar 29, 3:00 AM EDT	FLASH FLOOD	1 Ssw Brooklyn, OH	SIGNIFICANT FLASH FLOODING IS ONGOING ALONG BIG CREEK IN SOUTHERN CUYAHOGA COUNTY AT THIS TIME. BIG CREEK IS RISING QUICKLY AND APPROACHING MAJOR FLOOD STAGE. MULTIPLE ROADS AND BUSINESSES ARE FLOODED AND IMPASSABLE NEAR TIEDEMAN ROAD AND BROOKPARK ROAD. MULTI
Mar 29, 3:00 AM EDT	FLASH FLOOD	2 Ne Garfield Heights, OH	MILES AVE IS FLOODED AND IMPASSABLE FOR SEVERAL BLOCKS AROUND 160TH STREET. PUBLIC SAFETY IS CLOSING DOWN ROADS IN THAT AREA DUE TO FLASH FLOODING.
Mar 29, 3:15 AM EDT	FLASH FLOOD	2 Wsw Garfield Heights, OH	SIGNIFICANT FLASH FLOODING ONGOING ALONG THE TOWPATH NEAR GRANGER ROAD AND CANAL ROAD. MULTIPLE ROADS IMPASSABLE DUE TO SWIFT WATER. SOME BUSINESS ARE FLOODED IN THE AREA.
Mar 29, 3:47 AM EDT	FLASH FLOOD	1 N Garfield Heights, OH	PUBLIC SAFETY OFFICIALS REPORTING SIGNIFICANT FLOODING OF MILL CREEK WITH FLOODED ROADS AND CARS STRANDED IN GARFIELD HEIGHTS.
Mar 29, 5:00 AM EDT	FLASH FLOOD	1 Wnw Chagrin Falls, OH	FLASH FLOOD VIDEO FROM CHAGRIN FALLS POLICE DEPT OF FAST FLOWING WATER SEVERAL FEET DEEP RUSHING DOWN THROUGH NEIGHBORHOOD STREETS.
Mar 29, 8:04 AM EDT	FLOOD	1 W Valley View, OH	WATER UP PAST THE HOOD OF A CAR.

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, 6.0 hours before the alert went out and 170 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 8 J/kg
Mixed-layer CIN: -245 J/kg
Mixed-layer LCL: 1217 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

126 
WGUS51 KCLE 290558
FFWCLE
OHC035-093-291200-
/O.NEW.KCLE.FF.W.0001.200329T0558Z-200329T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cleveland OH
158 AM EDT Sun Mar 29 2020

The National Weather Service in Cleveland has issued a

* Flash Flood Warning for...
  Cuyahoga County in northeastern Ohio...
  Northeastern Lorain County in north central Ohio...

* Until 800 AM EDT Sunday.

* At 157 AM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to one inch of rain has
  already fallen. Flash flooding is ongoing or expected to begin
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  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 flooding include...
  Cleveland, Elyria, Parma, Cleveland Heights, Strongsville,
  Brunswick, Westlake, North Royalton, North Ridgeville, Solon,
  Warrensville Heights, Grafton, Highland Hills, North Olmsted,
  Garfield Heights, Shaker Heights, Maple Heights, South Euclid, Avon
  and Parma Heights.

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 4157 8139 4145 8139 4142 8137 4142 8139
      4135 8140 4135 8159 4128 8157 4127 8197
      4120 8197 4120 8207 4123 8218 4146 8198
      4146 8174

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

Saunders

2 follow-up statements

277 
WGUS71 KCLE 290842
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
442 AM EDT Sun Mar 29 2020

OHC093-290848-
/O.CAN.KCLE.FF.W.0001.000000T0000Z-200329T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lorain OH-
442 AM EDT Sun Mar 29 2020

...THE FLASH FLOOD WARNING FOR NORTHEASTERN LORAIN COUNTY IS
CANCELLED...

Flash Flooding is no longer expected to pose a threat to the Lorain 
County area. Rivers and streams remained elevated but the rain has 
moved out of the area and conditions should continue to improve. 
Please continue to heed any remaining road closures.

LAT...LON 4157 8139 4145 8139 4142 8137 4142 8139
      4135 8140 4135 8159 4133 8159 4128 8157
      4127 8188 4135 8187 4136 8197 4146 8196
      4146 8174

$$

OHC035-291200-
/O.CON.KCLE.FF.W.0001.000000T0000Z-200329T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cuyahoga OH-
442 AM EDT Sun Mar 29 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM EDT FOR
CUYAHOGA COUNTY...

At 438 AM EDT, law enforcement reported flooding across Cuyahoga 
County, notably in the Garfield Height, Parma, Valley View, 
Lyndhurst, Mayfield Heights, Brooklyn Heights, and Broadview 
Heights. Up to three inches of rain have fallen and numerous water 
rescues are underway due to flooding of several roadways. Local law 
enforcement has issued a do not travel alert for the areas impacted.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Law enforcement.

IMPACT...Flooding of small creeks and streams, urban areas, 
         highways, streets and underpasses as well as other drainage 
         and low lying areas.


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 4157 8139 4145 8139 4142 8137 4142 8139
      4135 8140 4135 8159 4133 8159 4128 8157
      4127 8188 4135 8187 4136 8197 4146 8196
      4146 8174

FLASH FLOOD...OBSERVED


$$

Jamison

576 
WGUS71 KCLE 291004
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
604 AM EDT Sun Mar 29 2020

OHC035-291200-
/O.CON.KCLE.FF.W.0001.000000T0000Z-200329T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cuyahoga OH-
604 AM EDT Sun Mar 29 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM EDT FOR
CUYAHOGA COUNTY...

At 558 AM EDT, law enforcement reported significant flash flooding 
across the Cuyahoga County, notably in the southern portions of 
Cleveland, Garfield Height, Parma, Valley View, Chagrin Falls, 
Lyndhurst, Mayfield Heights, Brooklyn Heights, and Broadview 
Heights. Several creeks across Cuyahoga County reached major flood 
stages earlier this morning including Mill Creek, West Creek, and 
Big Creek. Water rescues and evacuations are ongoing across the 
warned area. Local law enforcement has issued a do not travel alert 
for the areas impacted. The rainfall has ended across the warned 
area so flood waters are expected to recede later this morning. 

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Law enforcement.

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 flooding include...
Cleveland, Parma, Cleveland Heights, Strongsville, Brunswick,
Westlake, North Royalton, Solon, Warrensville Heights, Highland
Hills, North Olmsted, Garfield Heights, Shaker Heights, Maple
Heights, South Euclid, Parma Heights, Rocky River, Broadview Heights,
Brook Park and Mayfield Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

&&

LAT...LON 4157 8139 4145 8139 4142 8137 4142 8139
      4135 8140 4135 8159 4133 8159 4128 8157
      4127 8188 4135 8187 4136 8197 4146 8196
      4146 8174

FLASH FLOOD...OBSERVED

$$

Jamison

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 28, 8:57 PM EDT	Special Weather Statement	CLE	Knox	33 min
Mar 28, 9:04 PM EDT	Severe Thunderstorm Warning	CLE	Knox	26 min
Mar 28, 9:21 PM EDT	Areal Flood Warning	CLE	Knox	6 hr
Mar 28, 9:23 PM EDT	Low Water Advisory	CLE		24 hr
Mar 28, 10:14 PM EDT	River Flood Warning	CLE	Sandusky, Wood	47 hr
Mar 29, 12:31 AM EDT	Areal Flood Advisory	CLE	Hancock, Seneca, Wood, Wyandot	4 hr
Mar 29, 1:18 AM EDT	Special Weather Statement	CLE	Huron	42 min
Mar 29, 1:23 AM EDT	Special Weather Statement	CLE	Ashland, Richland	52 min
Mar 29, 1:24 AM EDT	Areal Flood Advisory	CLE	Erie, Huron, Lorain	4 hr
Mar 29, 1:29 AM EDT	Areal Flood Advisory	CLE	Cuyahoga	4 hr
Mar 29, 2:31 AM EDT	River Flood Warning	CLE	Hancock	30 hr
Mar 29, 2:33 AM EDT	Special Weather Statement	CLE	Geauga	42 min
Mar 29, 2:46 AM EDT	Areal Flood Advisory	CLE	Ashtabula, Geauga, Trumbull	4 hr
Mar 29, 3:44 AM EDT	River Flood Warning	CLE	Cuyahoga	21 hr
Mar 29, 3:44 AM EDT	River Flood Warning	CLE	Hancock	18 hr
Mar 29, 5:14 AM EDT	River Flood Warning	CLE	Trumbull	26 hr
Mar 29, 5:52 AM EDT	River Flood Warning	CLE	Lake	15 hr
Mar 29, 5:52 AM EDT	River Flood Warning	CLE	Lake	14 hr
Mar 29, 6:35 AM EDT	Areal Flood Advisory	CLE	Ashtabula, Geauga, Trumbull	6 hr
Mar 29, 6:54 AM EDT	Flash Flood Warning	CLE	Cuyahoga	5 hr
Mar 29, 8:10 AM EDT	River Flood Warning	CLE	Erie	19 hr
Mar 29, 9:10 AM EDT	River Flood Warning	CLE	Seneca	6 hr
Mar 29, 11:54 AM EDT	Areal Flood Advisory	CLE	Cuyahoga	4 hr
Mar 29, 12:39 PM EDT	River Flood Warning	CLE	Holmes, Wayne	4 days
Mar 29, 2:16 PM EDT	Gale Warning	CLE		7 hr
Mar 29, 2:16 PM EDT	Small Craft Advisory	CLE		32 hr
Mar 29, 3:26 PM EDT	River Flood Warning	CLE	Trumbull	14 hr

Nearby

Flash Flood Warnings in Ohio, 2020 Every 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.