Alert archive / South Carolina / Heat Advisories in 2012

Heat Advisory 4, NWS Greenville-Spartanburg, SC

July 2, 20124 counties in North Carolina; 8 counties in South Carolina; 4 counties in Georgia

NWS Greenville-Spartanburg, SC issued this heat advisory at Jul 2, 2012, 4:20 AM EDT for 4 counties in North Carolina; 8 counties in South Carolina; 4 counties in Georgia. It took effect at Jul 2, 2012, 12:00 PM EDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jul 2, 2012, 4:20 AM EDT (08:20 UTC)
In effect from: Jul 2, 2012, 12:00 PM EDT
Expired: Jul 2, 2012, 2:51 PM EDT
In force: 3 hr
Issued by: NWS Greenville-Spartanburg, SC

Counties Elbert County, GA, Franklin County, GA, Hart County, GA, Stephens County, GA, Cabarrus County, NC, Gaston County, NC, Mecklenburg County, NC, Union County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Greenwood County, SC, Laurens County, SC, Union County, SC, York County, SC

The radar

The Greer radar (KGSP), 37 km from the middle of the area, began a volume at 08:21 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 8.3 hours before the alert went out and 237 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: 611 J/kg
Mixed-layer CIN: -137 J/kg
Mixed-layer LCL: 2544 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this heat advisory went out at Jul 2, 4:06 AM EDT, 14 minutes earlier.

Area forecast discussion, Jul 2, 4:06 AM EDT, 14 minutes before

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Hazardous weather outlook, Jul 2, 3:57 AM EDT, 23 minutes before

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In the hours before

Special weather statement, Jul 2, 1:40 AM EDT, 2 hours 40 minutes before

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Local storm report, Jul 2, 1:41 AM EDT, 2 hours 39 minutes before

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Local storm report, Jul 2, 1:53 AM EDT, 2 hours 27 minutes before

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Special weather statement, Jul 2, 1:56 AM EDT, 2 hours 24 minutes before

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Local storm report, Jul 2, 1:59 AM EDT, 2 hours 21 minutes before

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Special weather statement, Jul 2, 2:56 AM EDT, 1 hour 24 minutes before

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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 1, 8:04 PM EDT	Special Weather Statement	GSP	Mecklenburg	41 min
Jul 1, 8:10 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Gaston, Lincoln, Mecklenburg	34 min
Jul 1, 8:28 PM EDT	Areal Flood Advisory	GSP	Mecklenburg	2 hr
Jul 1, 8:41 PM EDT	Special Weather Statement	GSP	Cabarrus	49 min
Jul 1, 8:58 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Transylvania	47 min
Jul 1, 9:38 PM EDT	Severe Thunderstorm Warning	GSP	Macon, Swain	54 min
Jul 1, 9:40 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon	65 min
Jul 1, 10:06 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon, Transylvania	54 min
Jul 1, 10:19 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Transylvania	41 min
Jul 1, 11:10 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Madison	65 min
Jul 1, 11:20 PM EDT	Special Weather Statement	GSP	Union	55 min
Jul 1, 11:55 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Haywood, Madison	65 min
Jul 2, 12:19 AM EDT	Severe Thunderstorm Warning	GSP	Graham, Macon, Swain	56 min
Jul 2, 12:21 AM EDT	Severe Thunderstorm Warning	GSP	Graham, Macon, Swain	54 min
Jul 2, 12:27 AM EDT	Severe Thunderstorm Warning	GSP	Avery, Madison, Mitchell, Yancey	63 min
Jul 2, 1:13 AM EDT	Severe Thunderstorm Warning	GSP	Alexander, Avery, Burke, Caldwell, McDowell, Mitchell and 1 more	62 min
Jul 2, 1:40 AM EDT	Special Weather Statement	GSP	Davie, Iredell	50 min
Jul 2, 1:56 AM EDT	Special Weather Statement	GSP	Catawba	49 min
Jul 2, 2:56 AM EDT	Special Weather Statement	GSP	Graham	49 min
Jul 1, 8:51 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens, Spartanburg	54 min
Jul 1, 9:10 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Laurens, Spartanburg	65 min
Jul 1, 9:43 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville	62 min
Jul 1, 9:50 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	40 min
Jul 1, 10:19 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Union, York	56 min
Jul 1, 10:31 PM EDT	Special Weather Statement	GSP	Greenville, Spartanburg	44 min
Jul 1, 11:06 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Pickens	39 min
Jul 1, 11:12 PM EDT	Special Weather Statement	GSP	Spartanburg	48 min
Jul 1, 11:13 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Laurens, Spartanburg, Union	62 min
Jul 1, 11:22 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Greenville, Laurens	34 min
Jul 2, 5:34 AM EDT	Special Weather Statement	GSP	Laurens, Spartanburg, Union	41 min
Jul 1, 10:45 PM EDT	Severe Thunderstorm Warning	GSP	Franklin, Habersham, Stephens	45 min
Jul 1, 11:35 PM EDT	Special Weather Statement	GSP	Franklin, Habersham, Hart, Rabun, Stephens	55 min

Nearby

Heat Advisories in South Carolina, 2012 Heat Advisories in North Carolina, 2012 Heat Advisories in Georgia, 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.