Alert archive / West Virginia / Heat Advisories in 2012

Heat Advisory 1, NWS Charleston, WV

June 28, 201224 counties in West Virginia; 9 counties in Ohio; 4 counties in Kentucky

NWS Charleston, WV issued this heat advisory at Jun 28, 2012, 3:04 PM EDT for 24 counties in West Virginia; 9 counties in Ohio; 4 counties in Kentucky. It took effect at Jun 29, 2012, 12:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jun 28, 2012, 3:04 PM EDT (19:04 UTC)
In effect from: Jun 29, 2012, 12:00 PM EDT
Expired: Jun 29, 2012, 8:00 PM EDT
In force: 8 hr
Issued by: NWS Charleston, WV

All 37 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, Boone County, WV, Braxton County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Logan County, WV, Mason County, WV, Mingo County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tyler County, WV, Wayne County, WV, Wirt County, WV, Wood County, WV

The radar

The Charleston,WV radar (KRLX), 55 km from the middle of the area, began a volume at 19:08 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, 7.1 hours before the alert went out and 226 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: 2455 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 240 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 heat advisory 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 heat advisory went out at Jun 28, 1:30 PM EDT, 1 hour 34 minutes earlier.

Area forecast discussion, Jun 28, 1:30 PM EDT, 1 hour 34 minutes before

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Hazardous weather outlook, Jun 28, 2:54 AM EDT, 12 hours 10 minutes before

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In the hours before

Special weather statement, Jun 28, 10:42 AM EDT, 4 hours 22 minutes before

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Special weather statement, Jun 28, 10:51 AM EDT, 4 hours 13 minutes before

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Special weather statement, Jun 28, 12:39 PM EDT, 2 hours 25 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
Jun 28, 10:33 AM EDT	Red Flag Warning	RLX	Athens, Jackson, Morgan, Perry, Vinton, Washington	9 hr

Nearby

Heat Advisories in West Virginia, 2012 Heat Advisories in Ohio, 2012 Heat Advisories in Kentucky, 2012 Every heat advisory in 2012

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.