Alert archive / Georgia / Freeze Warnings in 2021
Freeze Warning 3, NWS Charleston, SC
NWS Charleston, SC issued this freeze warning at Apr 1, 2021, 3:08 PM EDT for 5 counties in South Carolina; 6 counties in Georgia. It took effect at Apr 2, 2021, 4:00 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
- Apr 1, 2021, 3:08 PM EDT (19:08 UTC)
- In effect from
- Apr 2, 2021, 4:00 AM EDT
- Expired
- Apr 2, 2021, 8:28 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 19:08 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, 7.1 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
- 11 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 637 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- -131 m²/s²
- 0-3 km storm-relative helicity
- -68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
991 WWUS72 KCHS 011908 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 308 PM EDT Thu Apr 1 2021 GAZ087-088-100-SCZ040-020500- /O.NEW.KCHS.FZ.W.0003.210402T0800Z-210402T1300Z/ Jenkins-Screven-Bulloch-Allendale- Including the cities of Millen, Sylvania, Statesboro, and Allendale 308 PM EDT Thu Apr 1 2021 ...FREEZE WARNING IN EFFECT FROM 4 AM TO 9 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...In South Carolina, Allendale County. In Georgia, Jenkins, Screven and Bulloch Counties. * WHEN...From 4 AM to 9 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
5 follow-up statements
027 WWUS72 KCHS 012257 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 657 PM EDT Thu Apr 1 2021 GAZ087-088-100-SCZ040-020700- /O.CON.KCHS.FZ.W.0003.210402T0800Z-210402T1300Z/ Jenkins-Screven-Bulloch-Allendale- Including the cities of Millen, Sylvania, Statesboro, and Allendale 657 PM EDT Thu Apr 1 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 4 AM TO 9 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...In South Carolina, Allendale County. In Georgia, Jenkins, Screven and Bulloch Counties. * WHEN...From 4 AM to 9 AM EDT Friday. * IMPACTS...Freezing temperatures will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 2 to 4 hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
100 WWUS72 KCHS 020204 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 1004 PM EDT Thu Apr 1 2021 SCZ045-021015- /O.NEW.KCHS.LW.Y.0005.210402T0204Z-210402T1600Z/ /O.EXA.KCHS.FZ.W.0003.210402T0800Z-210402T1300Z/ Inland Berkeley- Including the cities of Goose Creek and Moncks Corner 1004 PM EDT Thu Apr 1 2021 ...LAKE WIND ADVISORY IN EFFECT UNTIL NOON EDT FRIDAY FOR LAKE MOULTRIE... ...FREEZE WARNING IN EFFECT FROM 4 AM TO 9 AM EDT FRIDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 32 expected. For the Lake Wind Advisory, north winds 15 to 20 knots with gusts up to 25 knots. * WHERE...Inland Berkeley County. * WHEN...For the Freeze Warning, from 4 AM to 9 AM EDT Friday. For the Lake Wind Advisory, until noon EDT Friday. * IMPACTS...Strong winds and rough waves on Lake Moultrie will create hazardous conditions for small craft. Freezing temperatures will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 1 to 3 hours. Patchy frost will also occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on Lake Moultrie should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ GAZ099-114-115-SCZ042>044-021015- /O.EXA.KCHS.FZ.W.0003.210402T0800Z-210402T1300Z/ Candler-Tattnall-Evans-Hampton-Inland Colleton-Dorchester- Including the cities of Metter, Reidsville, Claxton, Hampton, Yemassee, Walterboro, Saint George, and Summerville 1004 PM EDT Thu Apr 1 2021 ...FREEZE WARNING IN EFFECT FROM 4 AM TO 9 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...In South Carolina, Hampton, Inland Colleton and Dorchester Counties. In Georgia, Candler, Tattnall and Evans Counties. * WHEN...From 4 AM to 9 AM EDT Friday. * IMPACTS...Freezing temperatures will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 2 to 4 hours. Patchy frost will also occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ GAZ087-088-100-SCZ040-021015- /O.CON.KCHS.FZ.W.0003.210402T0800Z-210402T1300Z/ Jenkins-Screven-Bulloch-Allendale- Including the cities of Millen, Sylvania, Statesboro, and Allendale 1004 PM EDT Thu Apr 1 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 4 AM TO 9 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...In South Carolina, Allendale County. In Georgia, Jenkins, Screven and Bulloch Counties. * WHEN...From 4 AM to 9 AM EDT Friday. * IMPACTS...Freezing temperatures will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 2 to 4 hours. Patchy frost will also occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
891 WWUS72 KCHS 020612 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 212 AM EDT Fri Apr 2 2021 SCZ045-021415- /O.CON.KCHS.FZ.W.0003.210402T0800Z-210402T1300Z/ /O.CON.KCHS.LW.Y.0005.000000T0000Z-210402T1600Z/ Inland Berkeley- Including the cities of Goose Creek and Moncks Corner 212 AM EDT Fri Apr 2 2021 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY FOR LAKE MOULTRIE... ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...For the Freeze Warning, temperatures as low as 32 expected. For the Lake Wind Advisory, north winds 15 to 20 knots with gusts up to 25 knots. * WHERE...Inland Berkeley County. * WHEN...For the Freeze Warning, until 9 AM EDT this morning. For the Lake Wind Advisory, until noon EDT today. * IMPACTS...Strong winds and rough waves on Lake Moultrie will create hazardous conditions for small craft. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 1 to 3 hours. Patchy frost will also occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on Lake Moultrie should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ GAZ087-088-099-100-114-115-SCZ040-042>044-021300- /O.CON.KCHS.FZ.W.0003.210402T0800Z-210402T1300Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, and Summerville 212 AM EDT Fri Apr 2 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Portions of southeast South Carolina and southeast Georgia. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 2 to 4 hours. Patchy frost will also occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
347 WWUS72 KCHS 020846 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 446 AM EDT Fri Apr 2 2021 SCZ045-021600- /O.CON.KCHS.FZ.W.0003.000000T0000Z-210402T1300Z/ /O.CON.KCHS.LW.Y.0005.000000T0000Z-210402T1600Z/ Inland Berkeley- Including the cities of Goose Creek and Moncks Corner 446 AM EDT Fri Apr 2 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY FOR LAKE MOULTRIE... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 32. For the Lake Wind Advisory, north winds 15 to 20 knots with gusts up to 25 knots. * WHERE...Inland Berkeley County. * WHEN...For the Freeze Warning, until 9 AM EDT this morning. For the Lake Wind Advisory, until noon EDT today. * IMPACTS...Strong winds and rough waves on Lake Moultrie will create hazardous conditions for small craft. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 1 to 2 hours. Patchy frost will also occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on Lake Moultrie should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ GAZ087-088-099-100-114-115-SCZ040-042>044-021300- /O.CON.KCHS.FZ.W.0003.000000T0000Z-210402T1300Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, and Summerville 446 AM EDT Fri Apr 2 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 31. * WHERE...Portions of southeast South Carolina and southeast Georgia. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Temperatures will be at 32 degrees or colder for up to 1 to 3 hours. Patchy frost will also occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
706 WWUS72 KCHS 021228 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 828 AM EDT Fri Apr 2 2021 SCZ045-022030- /O.CAN.KCHS.FZ.W.0003.000000T0000Z-210402T1300Z/ /O.NEW.KCHS.FZ.W.0004.210403T0600Z-210403T1300Z/ /O.CON.KCHS.LW.Y.0005.000000T0000Z-210402T1600Z/ Inland Berkeley- Including the cities of Goose Creek and Moncks Corner 828 AM EDT Fri Apr 2 2021 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY FOR LAKE MOULTRIE... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 29 degrees expected. For the Lake Wind Advisory, north winds 10 to 15 knots with gusts up to 25 knots. * WHERE...Inland Berkeley County. * WHEN...For the Freeze Warning, from 2 AM to 9 AM EDT Saturday. For the Lake Wind Advisory, until noon EDT today. * IMPACTS...Strong winds and rough waves on Lake Moultrie will create hazardous conditions for small craft. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on Lake Moultrie should use extra caution since strong winds and rough waves can overturn small craft. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ GAZ087-088-099-100-114-115-SCZ040-042>044-022030- /O.CAN.KCHS.FZ.W.0003.000000T0000Z-210402T1300Z/ /O.NEW.KCHS.FZ.W.0004.210403T0600Z-210403T1300Z/ Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-Hampton- Inland Colleton-Dorchester- Including the cities of Millen, Sylvania, Metter, Statesboro, Reidsville, Claxton, Allendale, Hampton, Yemassee, Walterboro, Saint George, and Summerville 828 AM EDT Fri Apr 2 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 30 degrees expected. * WHERE...Portions of southeast South Carolina and southeast Georgia. * WHEN...From 2 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ GAZ101-116-118-137-138-140-SCZ047-049-050-052-022030- /O.NEW.KCHS.FZ.A.0002.210403T0600Z-210403T1300Z/ Effingham-Inland Bryan-Inland Chatham-Long-Inland Liberty- Inland McIntosh-Inland Jasper-Coastal Colleton-Charleston- Tidal Berkeley- Including the cities of Rincon, Springfield, Pembroke, Richmond Hill, Garden City, Pooler, Savannah, Ludowici, Hinesville, Fort Stewart, Townsend, Ridgeland, Edisto Beach, Charleston, North Charleston, Mount Pleasant, and Daniel Island 828 AM EDT Fri Apr 2 2021 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... * WHAT...Sub-freezing temperatures possible. * WHERE...Portions of southeast South Carolina and southeast Georgia. * WHEN...From late tonight through Saturday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 8:23 PM EDT | Areal Flood Advisory | CHS | Charleston | 112 min |
| Mar 31, 8:23 PM EDT | Special Marine Warning | CHS | 112 min | |
| Mar 31, 8:31 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Charleston, Colleton | 59 min |
| Mar 31, 8:45 PM EDT | Special Marine Warning | CHS | 90 min | |
| Mar 31, 8:48 PM EDT | Special Weather Statement | CHS | Charleston | 27 min |
| Mar 31, 9:13 PM EDT | Special Weather Statement | CHS | Charleston | 32 min |
| Mar 31, 9:23 PM EDT | Special Marine Warning | CHS | 97 min | |
| Mar 31, 10:13 PM EDT | Special Marine Warning | CHS | 40 min | |
| Apr 1, 7:35 AM EDT | Lake Wind Advisory | CHS | Berkeley | 6 hr |
| Apr 1, 11:15 AM EDT | River Flood Warning | CHS | Hampton, Jasper | 21 days |
Nearby
Freeze Warnings in Georgia, 2021Freeze Warnings in South Carolina, 2021Every freeze 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.