Alert archive / Ohio / Flash Flood Warnings in 2020

Flash Flood Warning 11, NWS Cleveland, OH

July 7, 2020Portage County, Trumbull County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 7, 2020, 2:49 PM EDT for Portage County, Trumbull County, Ohio. It was in force for 3 hr. 1 report 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 7, 2020, 2:49 PM EDT (18:49 UTC)
Expired: Jul 7, 2020, 5:45 PM EDT
In force: 3 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Flood severity: None

Counties Portage County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 77 km from the middle of the area, began a volume at 18:52 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 7, 3:34 PM EDT	FLOOD	Newton Falls, OH	SEVERAL ROADS IMPASSABLE 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, 6.8 hours before the alert went out and 113 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1848 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

416 
WGUS51 KCLE 071849
FFWCLE
OHC133-155-072145-
/O.NEW.KCLE.FF.W.0011.200707T1849Z-200707T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cleveland OH
249 PM EDT Tue Jul 7 2020

The National Weather Service in Cleveland has issued a

* Flash Flood Warning for...
  Southwestern Trumbull County in northeastern Ohio...
  East central Portage County in northeastern Ohio...

* Until 545 PM EDT.

* At 248 PM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have 
  already fallen in one hour. 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...
  Warren, Newton Falls, Lordstown, Leavittsburg, Windham, Wayland,
  South Canal, Turnpike Interchange and Champion Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please report flooding to your local law enforcement agency when you
can do so safely.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4111 8114 4133 8101 4129 8085 4117 8091
      4113 8096 4113 8099 4111 8100 4108 8104

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

$$

Kahn

2 follow-up statements

447 
WGUS71 KCLE 071952
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
352 PM EDT Tue Jul 7 2020

OHC133-155-072145-
/O.CON.KCLE.FF.W.0011.000000T0000Z-200707T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Trumbull OH-Portage OH-
352 PM EDT Tue Jul 7 2020

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR
SOUTHWESTERN TRUMBULL AND EAST CENTRAL PORTAGE COUNTIES...

At 334 PM EDT, law enforcement reported that several roads were 
impassable due to flooding. Up to two inches of rain have fallen. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

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...
Warren, Newton Falls, Lordstown, Leavittsburg, Windham, Wayland,
South Canal, Turnpike Interchange and Champion Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please report flooding to your local law enforcement agency when you
can do so safely.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 4111 8114 4133 8101 4129 8085 4117 8091
      4113 8096 4113 8099 4111 8100 4108 8104

FLASH FLOOD...OBSERVED

$$

Kahn

762 
WGUS71 KCLE 072140
FFSCLE

Flash Flood Statement
National Weather Service Cleveland OH
540 PM EDT Tue Jul 7 2020

OHC133-155-072149-
/O.EXP.KCLE.FF.W.0011.000000T0000Z-200707T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Trumbull OH-Portage OH-
540 PM EDT Tue Jul 7 2020

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN TRUMBULL AND EAST CENTRAL
PORTAGE COUNTIES WILL EXPIRE AT 545 PM EDT...

Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 4111 8114 4133 8101 4129 8085 4117 8091
      4113 8096 4113 8099 4111 8100 4108 8104

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 4:15 AM EDT	Special Weather Statement	CLE	Knox	45 min
Jul 7, 12:57 PM EDT	Special Weather Statement	CLE	Summit	48 min
Jul 7, 1:32 PM EDT	Special Weather Statement	CLE	Cuyahoga	43 min
Jul 7, 1:59 PM EDT	Flash Flood Warning	CLE	Cuyahoga, Summit	3 hr
Jul 7, 3:20 PM EDT	Severe Thunderstorm Warning	CLE	Holmes	25 min
Jul 7, 3:33 PM EDT	Areal Flood Advisory	CLE	Mahoning, Stark	3 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.