Alert archive / Georgia / Frost Advisories in 2021
Frost Advisory 3, NWS Charleston, SC
NWS Charleston, SC issued this frost advisory at Apr 3, 2021, 3:01 PM EDT for 5 counties in South Carolina; 6 counties in Georgia. It took effect at Apr 4, 2021, 4:00 AM EDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 3, 2021, 3:01 PM EDT (19:01 UTC)
- In effect from
- Apr 4, 2021, 4:00 AM EDT
- Expired
- Apr 4, 2021, 8:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Charleston, SC
Counties Bulloch County, GA, Candler County, GA, Evans County, GA, Jenkins County, GA, Screven County, GA, Tattnall County, GA, Allendale County, SC, Berkeley County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC
The radar
The Charleston,SC radar (KCLX), 29 km from the middle of the area, began a volume at 19:00 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 12:00Z, 7.0 hours before the alert went out and 129 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2457 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -56 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
930 WWUS72 KCHS 031901 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 301 PM EDT Sat Apr 3 2021 GAZ087-088-099-100-114-115-SCZ040-042>045-040315- /O.NEW.KCHS.FR.Y.0003.210404T0800Z-210404T1200Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 301 PM EDT Sat Apr 3 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EDT SUNDAY... * WHAT...Temperatures in the mid 30s will result in frost formation. * WHERE...Portions of southeast South Carolina and southeast Georgia. * WHEN...From 4 AM to 8 AM EDT Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
4 follow-up statements
154 WWUS72 KCHS 040213 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 1013 PM EDT Sat Apr 3 2021 GAZ087-088-099-100-114-115-SCZ040-042>045-041015- /O.CON.KCHS.FR.Y.0003.210404T0800Z-210404T1200Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 1013 PM EDT Sat Apr 3 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM EDT SUNDAY... * WHAT...Temperatures in the mid 30s will result in frost formation. * WHERE...Portions of southeast South Carolina and southeast Georgia. * WHEN...From 4 AM to 8 AM EDT Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
527 WWUS72 KCHS 040705 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 305 AM EDT Sun Apr 4 2021 GAZ087-088-099-100-114-115-SCZ040-042>045-041200- /O.CON.KCHS.FR.Y.0003.210404T0800Z-210404T1200Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 305 AM EDT Sun Apr 4 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures as low as 35 will result in patchy to scattered frost formation. * WHERE...Inland portions of southeast South Carolina and southeast Georgia. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
207 WWUS72 KCHS 040950 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 550 AM EDT Sun Apr 4 2021 GAZ087-088-099-100-114-115-SCZ040-042>045-041200- /O.CON.KCHS.FR.Y.0003.000000T0000Z-210404T1200Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 550 AM EDT Sun Apr 4 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of southeast South Carolina and southeast Georgia. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Protect tender plants from the cold until after 8 am EDT && $$
605 WWUS72 KCHS 041145 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 745 AM EDT Sun Apr 4 2021 GAZ087-088-099-100-114-115-SCZ040-042>045-041245- /O.EXP.KCHS.FR.Y.0003.000000T0000Z-210404T1200Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 745 AM EDT Sun Apr 4 2021 ...FROST ADVISORY WILL EXPIRE AT 8 AM EDT THIS MORNING... Temperatures will rise this morning and the risk for frost will quickly end. $$
Nearby
Frost Advisories in Georgia, 2021Frost Advisories in South Carolina, 2021Every frost advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.