Alert archive / South Carolina / Frost Advisories in 2021
Frost Advisory 5, NWS Charleston, SC
NWS Charleston, SC issued this frost advisory at Nov 15, 2021, 2:41 PM EST for 5 counties in South Carolina; Bulloch County, Jenkins County, Screven County, Georgia. It took effect at Nov 16, 2021, 2:00 AM EST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Nov 15, 2021, 2:41 PM EST (19:41 UTC)
- In effect from
- Nov 16, 2021, 2:00 AM EST
- Expired
- Nov 16, 2021, 8:00 AM EST
- In force
- 6 hr
- Issued by
- NWS Charleston, SC
Counties Bulloch County, GA, Jenkins County, GA, Screven County, GA, Allendale County, SC, Berkeley County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC
The radar
The Charleston,SC radar (KCLX), 23 km from the middle of the area, began a volume at 19:40 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.
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 7.7 hours before the alert went out and 103 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
- 2084 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- -59 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
384 WWUS72 KCHS 151941 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 241 PM EST Mon Nov 15 2021 GAZ087-088-100-SCZ040-042>045-160400- /O.NEW.KCHS.FR.Y.0005.211116T0700Z-211116T1300Z/ Jenkins-Screven-Bulloch-Allendale-Hampton-Inland Colleton- Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Statesboro, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 241 PM EST Mon Nov 15 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EST TUESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In South Carolina, Allendale, Hampton, Inland Colleton, Dorchester and Inland Berkeley Counties. In Georgia, Jenkins, Screven and Bulloch Counties. * WHEN...From 2 AM to 8 AM EST Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
4 follow-up statements
724 WWUS72 KCHS 160310 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 1010 PM EST Mon Nov 15 2021 GAZ087-088-100-SCZ040-042>045-161115- /O.CON.KCHS.FR.Y.0005.211116T0700Z-211116T1300Z/ Jenkins-Screven-Bulloch-Allendale-Hampton-Inland Colleton- Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Statesboro, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 1010 PM EST Mon Nov 15 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM EST TUESDAY... * WHAT...Temperatures as low as 34 to 37 degrees will result in frost formation. * WHERE...In South Carolina, Allendale, Hampton, Inland Colleton, Dorchester and Inland Berkeley Counties. In Georgia, Jenkins, Screven and Bulloch Counties. * WHEN...From 2 AM to 8 AM EST Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
764 WWUS72 KCHS 160558 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 1258 AM EST Tue Nov 16 2021 GAZ087-088-100-SCZ040-042>045-161300- /O.CON.KCHS.FR.Y.0005.211116T0700Z-211116T1300Z/ Jenkins-Screven-Bulloch-Allendale-Hampton-Inland Colleton- Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Statesboro, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 1258 AM EST Tue Nov 16 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...In South Carolina, Dorchester, Inland Berkeley, Hampton, Inland Colleton and Allendale Counties. In Georgia, Jenkins, Screven and Bulloch Counties. * WHEN...Until 8 AM EST 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. && $$
411 WWUS72 KCHS 160848 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 348 AM EST Tue Nov 16 2021 GAZ087-088-100-SCZ040-042>045-161300- /O.CON.KCHS.FR.Y.0005.000000T0000Z-211116T1300Z/ Jenkins-Screven-Bulloch-Allendale-Hampton-Inland Colleton- Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Statesboro, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 348 AM EST Tue Nov 16 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In South Carolina, Dorchester, Inland Berkeley, Hampton, Inland Colleton and Allendale Counties. In Georgia, Jenkins, Screven and Bulloch Counties. * WHEN...Until 8 AM EST this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
995 WWUS72 KCHS 161252 NPWCHS URGENT - WEATHER MESSAGE National Weather Service Charleston SC 752 AM EST Tue Nov 16 2021 GAZ087-088-100-SCZ040-042>045-161400- /O.EXP.KCHS.FR.Y.0005.000000T0000Z-211116T1300Z/ Jenkins-Screven-Bulloch-Allendale-Hampton-Inland Colleton- Dorchester-Inland Berkeley- Including the cities of Millen, Sylvania, Statesboro, Allendale, Hampton, Yemassee, Walterboro, Saint George, Summerville, Goose Creek, and Moncks Corner 752 AM EST Tue Nov 16 2021 ...FROST ADVISORY WILL EXPIRE AT 8 AM EST THIS MORNING... Temperatures will warm quickly out of the 30s over the next hour or two. Therefore the frost advisory will be allowed to expire at 8 am. $$
Nearby
Frost Advisories in South Carolina, 2021Frost Advisories in Georgia, 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.