Alert archive / Ohio / Excessive Heat Warnings in 2018

Excessive Heat Warning 1, NWS Charleston, WV

July 3, 20188 counties in West Virginia; 9 counties in Ohio; 4 counties in Kentucky

NWS Charleston, WV issued this excessive heat warning at Jul 3, 2018, 1:56 PM EDT for 8 counties in West Virginia; 9 counties in Ohio; 4 counties in Kentucky. It took effect at Jul 4, 2018, 12:00 PM EDT. It was in force for 8 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 3, 2018, 1:56 PM EDT (17:56 UTC)
In effect from: Jul 4, 2018, 12:00 PM EDT
Expired: Jul 4, 2018, 8:00 PM EDT
In force: 8 hr
Issued by: NWS Charleston, WV

All 21 counties

Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Athens County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH, Washington County, OH, Cabell County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Mason County, WV, Putnam County, WV, Wayne County, WV, Wood County, WV

The radar

The Charleston,WV radar (KRLX), 68 km from the middle of the area, began a volume at 17:56 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, 5.9 hours before the alert went out and 155 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: 217 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 968 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 26 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 Charleston, WV wrote its last area forecast discussion before this excessive heat warning went out at Jul 3, 10:01 AM EDT, 3 hours 55 minutes earlier.

Area forecast discussion, Jul 3, 10:01 AM EDT, 3 hours 55 minutes before

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Hazardous weather outlook, Jul 3, 4:35 AM EDT, 9 hours 21 minutes before

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The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 2, 8:08 PM EDT	Special Weather Statement	RLX	Clay, Kanawha	67 min
Jul 2, 9:32 PM EDT	Special Weather Statement	RLX	Jackson, Putnam	28 min
Jul 2, 9:51 PM EDT	Flash Flood Warning	RLX	Jackson, Kanawha, Lincoln, Putnam, Roane, Wirt	6 hr
Jul 2, 10:30 PM EDT	Special Weather Statement	RLX	Doddridge, Tyler	30 min
Jul 3, 4:15 AM EDT	Excessive Heat Watch	RLX	Cabell, Jackson, Kanawha, Lincoln, Mason, Putnam and 2 more	10 hr
Jul 3, 4:15 AM EDT	Heat Advisory	RLX	Boone, Cabell, Calhoun, Gilmer, Jackson, Kanawha and 13 more	16 hr
Jul 3, 1:56 PM EDT	Heat Advisory	RLX	Boone, Braxton, Calhoun, Clay, Doddridge, Gilmer and 9 more	30 hr
Jul 3, 5:17 PM EDT	Special Weather Statement	RLX	Randolph	43 min
Jul 3, 5:54 PM EDT	Severe Thunderstorm Warning	RLX	Randolph, Upshur	36 min
Jul 3, 6:56 PM EDT	Special Weather Statement	RLX	Braxton, Gilmer	34 min

Nearby

Excessive Heat Warnings in Ohio, 2018 Excessive Heat Warnings in West Virginia, 2018 Excessive Heat Warnings in Kentucky, 2018 Every excessive heat warning in 2018

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.