Alert archive / Georgia / Frost Advisories in 2021
Frost Advisory 6, NWS Jacksonville, FL
NWS Jacksonville, FL issued this frost advisory at Mar 8, 2021, 3:11 PM EST for 13 counties in Georgia. It took effect at Mar 9, 2021, 4:00 AM EST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Mar 8, 2021, 3:11 PM EST (20:11 UTC)
- In effect from
- Mar 9, 2021, 4:00 AM EST
- Expired
- Mar 9, 2021, 7:57 AM EST
- In force
- 4 hr
- Issued by
- NWS Jacksonville, FL
Counties Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Glynn County, GA, Jeff Davis County, GA, Pierce County, GA, Ware County, GA, Wayne County, GA
The radar
The Moody AFB radar (KVAX), 83 km from the middle of the area, began a volume at 20:17 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
Jacksonville, FL (KJAX), launched 12:00Z, 8.2 hours before the alert went out and 105 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
- 2126 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
768 WWUS72 KJAX 082011 NPWJAX URGENT - WEATHER MESSAGE National Weather Service Jacksonville FL 311 PM EST Mon Mar 8 2021 GAZ132>136-149-151>153-163-165-250-264-350-364-091300- /O.NEW.KJAX.FR.Y.0006.210309T0900Z-210309T1300Z/ Coffee-Jeff Davis-Bacon-Appling-Wayne-Atkinson-Pierce-Brantley- Inland Glynn-Clinch-Inland Camden-Northern Ware- Northeastern Charlton-Southern Ware-Western Charlton- Including the cities of Douglas, Hazlehurst, Alma, New Lacy, Baxley, Pine Grove, Plant Hatch, Doctortown, Gardi, Jesup, Axson, Pearson, Willacoochee, Blackshear, Atkinson, Hickox, Hortense, Nahunta, Raybon, Waynesville, Hoboken, Thalmann, Homerville, Colesburg, Tarboro, Waverly, Woodbine, Needham, Waycross, Winokur, Folkston, St. George, Homeland, Race Pond, and Stephen Foster State Park 311 PM EST Mon Mar 8 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM EST TUESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of southeast Georgia. * WHEN...From 4 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. && $$
1 follow-up statement
540 WWUS72 KJAX 091257 NPWJAX URGENT - WEATHER MESSAGE National Weather Service Jacksonville FL 757 AM EST Tue Mar 9 2021 GAZ132>136-149-151>153-163-165-250-264-350-364-091400- /O.CAN.KJAX.FR.Y.0006.000000T0000Z-210309T1300Z/ Coffee-Jeff Davis-Bacon-Appling-Wayne-Atkinson-Pierce-Brantley- Inland Glynn-Clinch-Inland Camden-Northern Ware- Northeastern Charlton-Southern Ware-Western Charlton- Including the cities of Douglas, Hazlehurst, Alma, New Lacy, Baxley, Pine Grove, Plant Hatch, Doctortown, Gardi, Jesup, Axson, Pearson, Willacoochee, Blackshear, Atkinson, Hickox, Hortense, Nahunta, Raybon, Waynesville, Hoboken, Thalmann, Homerville, Colesburg, Tarboro, Waverly, Woodbine, Needham, Waycross, Winokur, Folkston, St. George, Homeland, Race Pond, and Stephen Foster State Park 757 AM EST Tue Mar 9 2021 ...FROST ADVISORY IS CANCELLED... $$
Nearby
Frost 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.