Alert archive / Ohio / Excessive Heat Warnings in 2019

Excessive Heat Warning 1, NWS Cleveland, OH

July 18, 201928 counties in Ohio

NWS Cleveland, OH issued this excessive heat warning at Jul 18, 2019, 3:23 AM EDT for 28 counties in Ohio. It took effect at Jul 18, 2019, 12:00 PM EDT. It was in force for 56 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2019, 3:23 AM EDT (07:23 UTC)
In effect from: Jul 18, 2019, 12:00 PM EDT
Expired: Jul 20, 2019, 7:57 PM EDT
In force: 56 hr
Issued by: NWS Cleveland, OH

All 28 counties

Ashland County, OH, Ashtabula County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Geauga County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake 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, Trumbull County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 46 km from the middle of the area, began a volume at 07:23 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 00:00Z, 7.4 hours before the alert went out and 198 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: 327 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 824 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 38 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 excessive heat warning 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 excessive heat warning went out at Jul 18, 1:50 AM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Jul 18, 1:50 AM EDT, 1 hour 33 minutes before

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Hazardous weather outlook, Jul 17, 3:44 PM EDT, 11 hours 39 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 2:48 PM EDT	Special Weather Statement	CLE	Lucas, Wood	57 min
Jul 18, 3:14 PM EDT	Severe Thunderstorm Warning	CLE	Lucas, Ottawa, Sandusky, Wood	46 min
Jul 18, 3:58 PM EDT	Special Weather Statement	CLE	Crawford, Erie, Huron, Sandusky, Seneca, Wyandot	47 min
Jul 18, 4:24 PM EDT	Heat Advisory	CLE	Ashtabula	52 hr
Jul 18, 5:05 PM EDT	Special Weather Statement	CLE	Ashland, Huron, Lorain, Richland	55 min

Nearby

Excessive Heat Warnings in Ohio, 2019 Every excessive heat warning in 2019

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.