Alert archive / Georgia / Red Flag Warnings in 2007

Red Flag Warning 104, NWS Jacksonville, FL

December 16, 20076 counties in Florida; 10 counties in Georgia

NWS Jacksonville, FL issued this red flag warning at Dec 16, 2007, 2:04 PM EST for 6 counties in Florida; 10 counties in Georgia. It took effect at Dec 17, 2007, 3:26 AM EST. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 16, 2007, 2:04 PM EST (19:04 UTC)
In effect from
Dec 17, 2007, 3:26 AM EST
Expired
Dec 17, 2007, 5:00 PM EST
In force
14 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, Clinch County, GA, Coffee County, GA, Echols County, GA, Jeff Davis County, GA, Pierce County, GA, Wayne County, GA

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.1 hours before the alert went out and 85 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.

Skew-T log-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2007-12-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2007-12-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
698 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning 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 red flag warning went out at Dec 16, 1:50 PM EST, 14 minutes earlier.

Area forecast discussion, Dec 16, 1:50 PM EST, 14 minutes before
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Hazardous weather outlook, Dec 16, 11:02 AM EST, 3 hours 2 minutes before
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In the hours before

Local storm report, Dec 16, 9:27 AM EST, 4 hours 37 minutes before
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Local storm report, Dec 16, 9:56 AM EST, 4 hours 8 minutes before
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Local storm report, Dec 16, 10:09 AM EST, 3 hours 55 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 16, 12:14 AM ESTSevere Thunderstorm WarningJAXHamilton, Suwannee46 min
Dec 16, 1:45 AM ESTFreeze WatchJAXBaker, Bradford, Gilchrist, Nassau, Suwannee, Union25 hr
Dec 16, 1:45 AM ESTFreeze WarningJAXBaker, Bradford, Gilchrist, Nassau, Suwannee, Union31 hr
Dec 16, 1:45 AM ESTLake Wind AdvisoryJAXBaker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more16 hr
Dec 16, 2:00 AM ESTSevere Thunderstorm WarningJAXGilchrist30 min
Dec 16, 2:12 AM ESTSevere Thunderstorm WarningJAXAlachua, Bradford, Columbia, Union33 min
Dec 16, 2:42 AM ESTTornado WarningJAXAlachua, Bradford, Clay, Putnam, Union33 min
Dec 16, 2:56 AM ESTSevere Thunderstorm WarningJAXAlachua, Marion49 min
Dec 16, 3:10 AM ESTSpecial Marine WarningJAX2 hr
Dec 16, 3:15 AM ESTSevere Thunderstorm WarningJAXClay, Duval45 min
Dec 16, 3:18 AM ESTSevere Thunderstorm WarningJAXClay, Saint Johns42 min
Dec 16, 3:20 AM ESTSevere Thunderstorm WarningJAXPutnam, Saint Johns40 min
Dec 16, 3:28 AM ESTSpecial Marine WarningJAX2 hr
Dec 16, 4:11 AM ESTSevere Thunderstorm WarningJAXMarion49 min

Nearby

Red Flag Warnings in Georgia, 2007Red Flag Warnings in Florida, 2007Every red flag warning in 2007

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.