Alert archive / South Carolina / Excessive Heat Warnings in 2022

Excessive Heat Warning 1, NWS Columbia, SC

July 7, 202218 counties in South Carolina; 5 counties in Georgia

NWS Columbia, SC issued this excessive heat warning at Jul 7, 2022, 3:19 AM EDT for 18 counties in South Carolina; 5 counties in Georgia. It took effect at Jul 7, 2022, 11:00 AM EDT. It was in force for 4 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 7, 2022, 3:19 AM EDT (07:19 UTC)
In effect from: Jul 7, 2022, 11:00 AM EDT
Expired: Jul 7, 2022, 2:36 PM EDT
In force: 4 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 radar

The Columbia radar (KCAE), 22 km from the middle of the area, began a volume at 07:21 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

Charleston AFB, SC (KCHS), launched 00:00Z, 7.3 hours before the alert went out and 160 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: 1833 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 50 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 Columbia, SC wrote its last area forecast discussion before this excessive heat warning went out at Jul 7, 2:53 AM EDT, 26 minutes earlier.

Area forecast discussion, Jul 7, 2:53 AM EDT, 26 minutes before

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Hazardous weather outlook, Jul 6, 11:47 PM EDT, 3 hours 32 minutes before

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In the hours before

Local storm report, Jul 6, 9:59 PM EDT, 5 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
959 PM EDT WED JUL 6 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0843 PM     TSTM WND DMG     3 SSE CAMDEN            34.22N 80.60W
07/06/2022                   KERSHAW            SC   LAW ENFORCEMENT

            HIGHWAY PATROL REPORTED A TREE DOWN ON I20
            AT EXIT 98 WESTBOUND.

&&

GPL

Local storm report, Jul 6, 10:01 PM EDT, 5 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1001 PM EDT WED JUL 6 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0815 PM     HEAVY RAIN       7 WNW WINNSBORO         34.41N 81.20W
07/06/2022  M3.50 INCH       FAIRFIELD          SC   PUBLIC

            A REPORT FROM THE FAIRFIELD COUNTY FIRE
            CHIEF OF 3.50 INCHES OF RAIN IN 35 MINUTES
            NEAR HWY. 34 AND CAMMACK ROAD.

&&

LCV

Local storm report, Jul 6, 10:04 PM EDT, 5 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1004 PM EDT WED JUL 6 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0850 PM     TSTM WND DMG     6 S WESTVILLE           34.37N 80.60W
07/06/2022                   KERSHAW            SC   LAW ENFORCEMENT

            SHERIFFS DISPATCH REPORTED SEVERAL TREES
            DOWN ALONG HWY. 521 BETWEEN CAMDEN AND
            WESTVILLE.

&&

LCV

Local storm report, Jul 6, 10:15 PM EDT, 5 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1015 PM EDT WED JUL 6 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0807 PM     TSTM WND DMG     4 SSW CHESTERFIELD      34.68N 80.10W
07/06/2022                   CHESTERFIELD       SC   LAW ENFORCEMENT

            SHERIFF DISPATCH REPORTED A TREE DOWN ALONG
            HWY. 102 NEAR THE SHILOH FISH HOUSE.

&&

LCV

Local storm report, Jul 6, 10:25 PM EDT, 4 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1025 PM EDT WED JUL 6 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0836 PM     TSTM WND DMG     4 NNE CHESTERFIELD      34.79N 80.05W
07/06/2022                   CHESTERFIELD       SC   LAW ENFORCEMENT

            SHERIFF DISPATCH REPORTED AT TREE DOWN ALONG
            FREEMAN ROAD.

&&

LCV

Special weather statement, Jul 6, 10:25 PM EDT, 4 hours 54 minutes before

Special Weather Statement
National Weather Service Columbia SC
1025 PM EDT Wed Jul 6 2022

SCZ029-031-037-038-137-070315-
Southeastern Orangeburg SC-Calhoun SC-Clarendon SC-Sumter SC-Lee SC-
1025 PM EDT Wed Jul 6 2022

...Strong thunderstorms will impact portions of eastern Lee,
southeastern Calhoun, Clarendon, east central Sumter and east central
Orangeburg Counties through 1115 PM EDT...

At 1025 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Sardis to near Alcolu to near Elloree.
Movement was east at 35 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Manning, Summerton, Elloree, Alcolu, Woods Bay State Park, Santee
State Park, Santee Cooper Regional Airport, Turbeville, Poplar Creek
Landing, St. Paul, Stumphole Landing, Foreston, Gable, Davis Station
and Shiloh.

This includes Interstate 95 between mile markers 99 and 126, and
between mile markers 140 and 146.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central South Carolina.

&&

LAT...LON 3382 7992 3377 7999 3372 7997 3350 8010
      3350 8012 3348 8015 3346 8013 3345 8022
      3342 8023 3354 8061 3378 8018 3390 8005
      3408 8005 3400 7990 3398 7990 3395 7998
      3388 7994 3388 7988
TIME...MOT...LOC 0225Z 270DEG 29KT 3401 7995 3373 8025 3351 8062

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

gpl

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 8:08 PM EDT	Areal Flood Advisory	CAE	Fairfield, Lancaster, Lexington, Newberry, Richland	112 min
Jul 6, 8:19 PM EDT	Special Weather Statement	CAE	Kershaw, Newberry, Richland	56 min
Jul 6, 8:26 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Lancaster, Richland	34 min
Jul 6, 8:31 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Lancaster	44 min
Jul 6, 8:39 PM EDT	Special Weather Statement	CAE	Orangeburg	36 min
Jul 6, 9:04 PM EDT	Special Weather Statement	CAE	Chesterfield	41 min
Jul 6, 9:10 PM EDT	Special Weather Statement	CAE	Lee, Lexington, Richland	65 min
Jul 6, 9:35 PM EDT	Special Weather Statement	CAE	Clarendon	40 min
Jul 6, 9:45 PM EDT	Special Weather Statement	CAE	Sumter	45 min
Jul 6, 9:53 PM EDT	Special Weather Statement	CAE	Calhoun	67 min
Jul 6, 10:25 PM EDT	Special Weather Statement	CAE	Clarendon	50 min
Jul 6, 10:35 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Clarendon, Orangeburg, Sumter	40 min
Jul 6, 10:56 PM EDT	Areal Flood Advisory	CAE	Calhoun, Clarendon, Richland, Sumter	49 min
Jul 7, 2:36 PM EDT	Heat Advisory	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 12 more	4 hr
Jul 7, 4:55 PM EDT	Special Weather Statement	CAE	McCormick	50 min
Jul 7, 5:44 PM EDT	Severe Thunderstorm Warning	CAE	Edgefield, McCormick, Saluda	46 min
Jul 7, 5:46 PM EDT	Areal Flood Advisory	CAE	Edgefield, McCormick	59 min
Jul 7, 5:56 PM EDT	Special Weather Statement	CAE	Newberry, Saluda	49 min
Jul 7, 5:59 PM EDT	Special Weather Statement	CAE	Calhoun	31 min
Jul 7, 6:25 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Barnwell, Edgefield, Lexington, McCormick, Saluda	65 min
Jul 7, 6:41 PM EDT	Areal Flood Advisory	CAE	Aiken, Edgefield, McCormick	64 min
Jul 7, 6:46 PM EDT	Areal Flood Advisory	CAE	Aiken, Barnwell, Orangeburg	59 min
Jul 7, 6:58 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Bamberg, Barnwell, Orangeburg	47 min
Jul 7, 7:07 PM EDT	Flash Flood Warning	CAE	Aiken, Edgefield	2 hr
Jul 7, 7:27 PM EDT	Special Weather Statement	CAE	Bamberg, Barnwell	63 min
Jul 7, 7:33 PM EDT	Special Weather Statement	CAE	Aiken	42 min
Jul 7, 7:37 PM EDT	Severe Thunderstorm Warning	CAE	Aiken, Calhoun, Lexington, Newberry, Richland	38 min
Jul 7, 7:49 PM EDT	Areal Flood Advisory	CAE	Aiken, Calhoun, Lexington, Orangeburg, Richland	116 min
Jul 7, 5:33 PM EDT	Special Weather Statement	CAE	Burke	27 min

Nearby

Excessive Heat Warnings in South Carolina, 2022 Excessive Heat Warnings in Georgia, 2022 Every excessive heat warning 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; radar from the NEXRAD Level II archive.