Alert archive / Ohio / Flash Flood Watches in 2009

Flash Flood Watch 1, NWS Cleveland, OH

June 19, 200924 counties in Ohio

NWS Cleveland, OH issued this flash flood watch at Jun 19, 2009, 10:24 AM EDT for 24 counties in Ohio. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued: Jun 19, 2009, 10:24 AM EDT (14:24 UTC)
Expired: Jun 20, 2009, 3:51 AM EDT
In force: 17 hr
Issued by: NWS Cleveland, OH
Flood severity: None

All 24 counties

Ashland County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 65 km from the middle of the area, began a volume at 14:24 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

Pittsburgh, PA (KPIT), launched 12:00Z, 2.4 hours before the alert went out and 211 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: 883 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before this flash flood watch went out at Jun 19, 7:45 AM EDT, 2 hours 39 minutes earlier.

Area forecast discussion, Jun 19, 7:45 AM EDT, 2 hours 39 minutes before

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Hazardous weather outlook, Jun 19, 4:26 AM EDT, 5 hours 58 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 5:37 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Richland	46 min
Jun 19, 6:09 PM EDT	Severe Thunderstorm Warning	CLE	Holmes, Knox, Wayne	51 min
Jun 19, 6:30 PM EDT	Tornado Warning	CLE	Holmes	27 min
Jun 19, 6:34 PM EDT	Severe Thunderstorm Warning	CLE	Stark	24 min
Jun 19, 6:39 PM EDT	Tornado Warning	CLE	Knox	33 min

Nearby

Flash Flood Watches in Ohio, 2009 Every flash flood watch in 2009

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.