Alert archive / South Carolina / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Columbia, SC
NWS Columbia, SC issued this red flag warning at Apr 21, 2021, 1:37 AM EDT for 5 counties in Georgia; 18 counties in South Carolina. It took effect at Apr 21, 2021, 2:00 PM EDT. It was in force for 6 hr. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 21, 2021, 1:37 AM EDT (05:37 UTC)
- In effect from
- Apr 21, 2021, 2:00 PM EDT
- Expired
- Apr 21, 2021, 8:00 PM EDT
- In force
- 6 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 05:40 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 21, 4:58 PM EDT | WILDFIRE | 4 Nw Aiken, SC | WILDFIRE REPORTED BY AIKEN COUNTY EMERGENCY MANAGEMENT AT 458 PM APR 21 2021. SOUTH CAROLINA FORESTRY COMMISSION CURRENTLY WORKING THE FIRE WITH AN ESTIMATED SIZE OF 90 ACRES. A LOCAL VOLUNTARY EVACUATION WAS RECOMMENDED BY AIKEN COUNTY EMERGENCY MANAGEMENT. N |
| Apr 21, 6:18 PM EDT | WILDFIRE | 3 Ne Hephzibah, GA | GEORGIA FORESTRY COMMISSION REPORTED A WILDFIRE NEAR WILSON ROAD. SIZE APROXIMATELY 60 ACRES. AS OF 618 PM APR 21 2021 THE WILDFIRE WAS REPORTED AS IN THE MOP UP PHASE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 00:00Z, 5.6 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.
- Mixed-layer CAPE
- 13 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1413 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted.
786 WWUS82 KCAE 210537 RFWCAE URGENT - FIRE WEATHER MESSAGE National Weather Service Columbia SC 137 AM EDT Wed Apr 21 2021 ...ELEVATED FIRE DANGER EXPECTED FOR THIS AFTERNOON AND EVENING... GAZ040-063>065-077-SCZ016-018-020>022-025>031-035-037-038-041-115- 116-135>137-220000- /O.UPG.KCAE.FW.A.0001.210421T1800Z-210422T0000Z/ /O.NEW.KCAE.FW.W.0001.210421T1800Z-210422T0000Z/ 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- 137 AM EDT Wed Apr 21 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY AHEAD OF AND BEHIND A DRY COLD FRONT... The National Weather Service in Columbia has issued a Red Flag Warning for strong winds and low relative humidity, which is in effect from 2 PM this afternoon to 8 PM EDT this evening. The Fire Weather Watch is no longer in effect. * FOR the Midlands of South Carolina and Central Savannah River Valley Area of Georgia * AFFECTED AREA...Chesterfield, McCormick, Newberry, Fairfield, Kershaw, Edgefield, Saluda, Lexington, Richland, Lee, Aiken, Sumter, Barnwell, Calhoun, Clarendon, Lincoln, Bamberg, McDuffie, Columbia, Richmond, Burke, Northern Lancaster, Southern Lancaster, Northwestern Orangeburg, Central Orangeburg and Southeastern Orangeburg. * TIMING...2pm to 8pm Today * WINDS...West 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 25 percent. * TEMPERATURES...Ranging from the upper 60s to the upper 70s. * IMPACTS...With dry fuels and strong gusty winds behind the cold front, extreme fire behavior possible. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
1 follow-up statement
764 WWUS82 KCAE 211820 RFWCAE URGENT - FIRE WEATHER MESSAGE National Weather Service Columbia SC 220 PM EDT Wed Apr 21 2021 ...ELEVATED FIRE DANGER CONTINUES THIS AFTERNOON AND EVENING... GAZ040-063>065-077-SCZ016-018-020>022-025>031-035-037-038-041-115- 116-135>137-220000- /O.CON.KCAE.FW.W.0001.000000T0000Z-210422T0000Z/ Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick- Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland- Lee-Aiken-Sumter-Barnwell-Calhoun-Clarendon-Bamberg- Northern Lancaster-Southern Lancaster-Northwestern Orangeburg- Central Orangeburg-Southeastern Orangeburg- 220 PM EDT Wed Apr 21 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY BEHIND A DRY COLD FRONT... * FOR the Midlands of South Carolina and Central Savannah River Valley Area of Georgia * AFFECTED AREA...Chesterfield, McCormick, Newberry, Fairfield, Kershaw, Edgefield, Saluda, Lexington, Richland, Lee, Aiken, Sumter, Barnwell, Calhoun, Clarendon, Lincoln, Bamberg, McDuffie, Columbia, Richmond, Burke, Northern Lancaster, Southern Lancaster, Northwestern Orangeburg, Central Orangeburg and Southeastern Orangeburg. * TIMING...Through 8pm this evening * WINDS...West 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 23 percent. * TEMPERATURES...Mid to upper 70s this afternoon. * IMPACTS...With dry fuels and strong gusty winds behind the cold front, extreme fire behavior possible. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
The office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 1:17 AM EDT | Lake Wind Advisory | CAE | Burke, Columbia, Lincoln, McDuffie, Richmond | 31 hr |
| Apr 21, 2:25 PM EDT | Frost Advisory | CAE | Lincoln | 18 hr |
Nearby
Red Flag Warnings in South Carolina, 2021Red Flag Warnings in Georgia, 2021Every red flag warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.