Alert archive / South Carolina / Heat Advisories in 2022

Heat Advisory 4, NWS Columbia, SC

July 8, 202218 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this heat advisory at Jul 8, 2022, 4:10 AM EDT for 18 counties in South Carolina; 5 counties in Georgia. It took effect at Jul 8, 2022, 11:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jul 8, 2022, 4:10 AM EDT (08:10 UTC)
In effect from
Jul 8, 2022, 11:00 AM EDT
Expired
Jul 8, 2022, 7:00 PM EDT
In force
8 hr
Issued by
NWS Columbia, SC
All 23 counties

Burke County, GA, Columbia County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Edgefield County, SC, Fairfield County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 8.2 hours before the alert went out and 300 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2022-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1383 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2022-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1383 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1513 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
44 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 Columbia, SC wrote its last area forecast discussion before this heat advisory went out at Jul 7, 7:54 PM EDT, 8 hours 16 minutes earlier.

Area forecast discussion, Jul 7, 7:54 PM EDT, 8 hours 16 minutes before
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Hazardous weather outlook, Jul 7, 7:03 PM EDT, 9 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Columbia SC
703 PM EDT Thu Jul 7 2022

GAZ040-063>065-077-SCZ016-018-020>022-025>031-035-037-038-041-115-
116-135>137-082315-
Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick-
Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland-Lee-
Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg-Northern Lancaster-
Southern Lancaster-Northwestern Orangeburg-Central Orangeburg-
Southeastern Orangeburg-
703 PM EDT Thu Jul 7 2022

This Hazardous Weather Outlook is for the Midlands of South Carolina
and the Central Savannah River area of Georgia.

.DAY ONE...Tonight.

Thunderstorms will progress from the northwest to the southeast
across the area late this evening. Some of these storms could be
severe. The primary threats will be damaging winds and locally heavy
rain.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The surface boundary will remain over the region with thunderstorms
expected through the weekend across all of the Midlands and Central
Savannah River Area. The potential for severe thunderstorms is low
however locally heavy rainfall is possible.

Afternoon high temperatures Friday and Saturday will be in the mid
90s pushing heat index values in the 105 to 108 degree range. A Heat
Advisory will likely be needed.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 8:11 PM EDTSevere Thunderstorm WarningCAEFairfield, Lexington, Richland49 min
Jul 7, 8:31 PM EDTFlash Flood WarningCAELexington, Richland89 min
Jul 7, 8:39 PM EDTSpecial Weather StatementCAEChesterfield36 min
Jul 7, 8:52 PM EDTSpecial Weather StatementCAEKershaw38 min
Jul 7, 9:20 PM EDTSpecial Weather StatementCAEChesterfield, Lancaster55 min
Jul 7, 9:52 PM EDTSevere Thunderstorm WarningCAEChesterfield53 min
Jul 7, 10:28 PM EDTAreal Flood AdvisoryCAEChesterfield, Kershaw, Lancaster62 min
Jul 8, 3:24 PM EDTSpecial Weather StatementCAECalhoun51 min
Jul 8, 4:21 PM EDTSevere Thunderstorm WarningCAEAiken, Barnwell39 min
Jul 8, 4:27 PM EDTSevere Thunderstorm WarningCAEAiken, Bamberg, Orangeburg48 min
Jul 8, 5:33 PM EDTSevere Thunderstorm WarningCAEAiken, Lexington, Orangeburg42 min
Jul 8, 5:52 PM EDTSpecial Weather StatementCAEOrangeburg38 min
Jul 8, 6:08 PM EDTSpecial Weather StatementCAEEdgefield37 min
Jul 8, 6:41 PM EDTSpecial Weather StatementCAEClarendon49 min
Jul 8, 7:44 PM EDTAreal Flood AdvisoryCAEChesterfield, Kershaw, Lancaster61 min
Jul 8, 3:27 PM EDTSpecial Weather StatementCAEBurke48 min

Nearby

Heat Advisories in South Carolina, 2022Heat Advisories in Georgia, 2022Every heat advisory in 2022

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.