Alert archive / Georgia / Frost Advisories in 2009
Frost Advisory 4, NWS Jacksonville, FL
NWS Jacksonville, FL issued this frost advisory at Mar 4, 2009, 1:18 PM EST for 5 counties in Florida; 12 counties in Georgia. It took effect at Mar 5, 2009, 1:00 AM EST. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Mar 4, 2009, 1:18 PM EST (18:18 UTC)
- In effect from
- Mar 5, 2009, 1:00 AM EST
- Expired
- Mar 5, 2009, 8:15 AM EST
- In force
- 7 hr
- Issued by
- NWS Jacksonville, FL
Counties Baker County, FL, Gilchrist County, FL, Nassau County, FL, Suwannee County, FL, Union County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Camden County, GA, Clinch County, GA, Coffee County, GA, Echols County, GA, Glynn County, GA, Jeff Davis County, GA, Pierce County, GA, Wayne County, GA
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.3 hours before the alert went out and 196 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
- 1517 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 3, 7:53 PM EST | Hard Freeze Warning | JAX | Baker, Gilchrist, Suwannee, Union | 12 hr |
Nearby
Frost Advisories in Georgia, 2009Frost Advisories in Florida, 2009Every frost advisory in 2009
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.