Alert archive / Ohio / Flash Flood Warnings in 2006

Flash Flood Warning 38, NWS Cleveland, OH

July 18, 2006Knox County, Morrow County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 18, 2006, 6:39 PM EDT for Knox County, Morrow County, Ohio. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 18, 2006, 6:39 PM EDT (22:39 UTC)
Expired: Jul 18, 2006, 9:45 PM EDT
In force: 3 hr
Issued by: NWS Cleveland, OH
Area: Counties, with a storm outline in the text

Counties Knox County, OH, Morrow County, OH

The radar

The Cleveland radar (KCLE), 136 km from the middle of the area, began a volume at 22:38 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.7 hours before the alert went out and 141 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: 409 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 1229 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KCLE 182241
FFWCLE
OHC083-117-190145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
639 PM EDT TUE JUL 18 2006

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL KNOX COUNTY IN NORTH CENTRAL OHIO
  SOUTHEASTERN MORROW COUNTY IN NORTH CENTRAL OHIO

* UNTIL 945 PM EDT

* AT 638 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SPARTA AND 
  MOUNT LIBERTY.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. TURN AROUND...DONT DROWN

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
CLEVELAND.

LAT...LON 4029 8272 4027 8254 4041 8250 4043 8272

$$

1 follow-up statement

000 
WGUS71 KCLE 190034
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
835 PM EDT TUE JUL 18 2006

OHC083-117-190045-
KNOX OH-MORROW OH-
835 PM EDT TUE JUL 18 2006

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN MORROW
AND WEST CENTRAL KNOX COUNTIES...

LAT...LON 4029 8272 4027 8254 4041 8250 4043 8272

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 11:51 PM EDT	Special Marine Warning	CLE		114 min
Jul 18, 5:27 PM EDT	Severe Thunderstorm Warning	CLE	Morrow	48 min
Jul 18, 5:41 PM EDT	Severe Thunderstorm Warning	CLE	Knox	49 min

Nearby

Flash Flood Warnings in Ohio, 2006 Every flash flood warning in 2006

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.