Alert archive / Georgia / Frost Advisories in 2021
Frost Advisory 9, NWS Jacksonville, FL
NWS Jacksonville, FL issued this frost advisory at Nov 15, 2021, 2:54 PM EST for 8 counties in Georgia. It took effect at Nov 16, 2021, 4:00 AM EST. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Nov 15, 2021, 2:54 PM EST (19:54 UTC)
- In effect from
- Nov 16, 2021, 4:00 AM EST
- Expired
- Nov 16, 2021, 7:00 AM EST
- In force
- 3 hr
- Issued by
- NWS Jacksonville, FL
Counties Appling County, GA, Atkinson County, GA, Bacon County, GA, Coffee County, GA, Jeff Davis County, GA, Pierce County, GA, Ware County, GA, Wayne County, GA
The radar
The Moody AFB radar (KVAX), 84 km from the middle of the area, began a volume at 19:52 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, 7.9 hours before the alert went out and 132 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
- 1715 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
960 WWUS72 KJAX 151954 NPWJAX URGENT - WEATHER MESSAGE National Weather Service Jacksonville FL 254 PM EST Mon Nov 15 2021 GAZ132>136-149-151-250-161200- /O.NEW.KJAX.FR.Y.0009.211116T0900Z-211116T1200Z/ Coffee-Jeff Davis-Bacon-Appling-Wayne-Atkinson-Pierce- Northern Ware- Including the cities of Douglas, Hazlehurst, Alma, New Lacy, Baxley, Pine Grove, Plant Hatch, Doctortown, Gardi, Jesup, Axson, Pearson, Willacoochee, Blackshear, Needham, and Waycross 254 PM EST Mon Nov 15 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 7 AM EST TUESDAY... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Coffee, Jeff Davis, Bacon, Appling, Wayne, Atkinson, Pierce and Northern Ware Counties. * WHEN...From 4 AM to 7 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. && $$
1 follow-up statement
086 WWUS72 KJAX 161203 NPWJAX URGENT - WEATHER MESSAGE National Weather Service Jacksonville FL 703 AM EST Tue Nov 16 2021 GAZ132>136-149-151-250-161315- /O.EXP.KJAX.FR.Y.0009.000000T0000Z-211116T1200Z/ Coffee-Jeff Davis-Bacon-Appling-Wayne-Atkinson-Pierce- Northern Ware- Including the cities of Douglas, Hazlehurst, Alma, New Lacy, Baxley, Pine Grove, Plant Hatch, Doctortown, Gardi, Jesup, Axson, Pearson, Willacoochee, Blackshear, Needham, and Waycross 703 AM EST Tue Nov 16 2021 ...FROST ADVISORY HAS EXPIRED... $$
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.