Alert archive / Georgia / Frost Advisories in 2011
Frost Advisory 6, NWS Jacksonville, FL
NWS Jacksonville, FL issued this frost advisory at Nov 30, 2011, 1:26 PM EST for 6 counties in Florida; 12 counties in Georgia. It took effect at Dec 1, 2011, 4:00 AM EST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Nov 30, 2011, 1:26 PM EST (18:26 UTC)
- In effect from
- Dec 1, 2011, 4:00 AM EST
- Expired
- Dec 1, 2011, 8:00 AM EST
- In force
- 4 hr
- Issued by
- NWS Jacksonville, FL
Counties Baker County, FL, Bradford 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, 6.4 hours before the alert went out and 195 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
- 770 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before this frost advisory went out at Nov 30, 9:44 AM EST, 3 hours 42 minutes earlier.
Area forecast discussion, Nov 30, 9:44 AM EST, 3 hours 42 minutes before
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</html>Hazardous weather outlook, Nov 30, 4:08 AM EST, 9 hours 18 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 3:47 AM EST | Freeze Watch | JAX | Baker, Gilchrist, Suwannee, Union | 10 hr |
Nearby
Frost Advisories in Georgia, 2011Frost Advisories in Florida, 2011Every frost advisory in 2011
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.