Alert archive / Georgia / Red Flag Warnings in 2008

Red Flag Warning 55, NWS Jacksonville, FL

May 11, 20087 counties in Florida; 12 counties in Georgia

NWS Jacksonville, FL issued this red flag warning at May 11, 2008, 2:43 AM EDT for 7 counties in Florida; 12 counties in Georgia. It took effect at May 12, 2008, 11:00 AM EDT. It was in force for 8 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: May 11, 2008, 2:43 AM EDT (06:43 UTC)
In effect from: May 12, 2008, 11:00 AM EDT
Expired: May 12, 2008, 7:00 PM EDT
In force: 8 hr
Issued by: NWS Jacksonville, FL

Counties Baker County, FL, Bradford County, FL, Flagler 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

Jacksonville, FL (KJAX), launched 00:00Z, 6.7 hours before the alert went out and 69 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1812 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1506 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.4

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 May 11, 2:30 AM EDT, 13 minutes earlier.

Area forecast discussion, May 11, 2:30 AM EDT, 13 minutes before

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Hazardous weather outlook, May 11, 1:10 AM EDT, 1 hour 33 minutes before

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In the hours before

Special weather statement, May 10, 11:21 PM EDT, 3 hours 22 minutes before

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Special weather statement, May 10, 11:34 PM EDT, 3 hours 9 minutes before

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Special weather statement, May 10, 11:43 PM EDT, 3 hours before

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Special weather statement, May 10, 11:51 PM EDT, 2 hours 52 minutes before

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Special weather statement, May 11, 12:14 AM EDT, 2 hours 29 minutes before

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Local storm report, May 11, 1:16 AM EDT, 1 hour 27 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 3:35 AM EDT	Lake Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	40 hr
May 11, 9:22 AM EDT	Special Marine Warning	JAX		113 min
May 11, 11:08 AM EDT	Special Marine Warning	JAX		97 min
May 11, 12:44 PM EDT	Special Marine Warning	JAX		91 min
May 11, 1:20 PM EDT	Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	7 hr
May 11, 2:30 PM EDT	Special Marine Warning	JAX		2 hr
May 11, 3:15 PM EDT	Fire Weather Watch	JAX	Baker, Bradford, Gilchrist, Nassau, Suwannee, Union	37 hr
May 11, 4:33 PM EDT	Special Marine Warning	JAX		67 min
May 11, 6:10 PM EDT	Special Marine Warning	JAX		50 min
May 10, 10:42 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	48 min
May 11, 12:29 AM EDT	Severe Thunderstorm Warning	JAX	Wayne	31 min
May 11, 2:43 AM EDT	Fire Weather Watch	JAX	Appling, Atkinson, Bacon, Brantley, Camden, Clinch and 6 more	13 hr
May 11, 7:34 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Jeff Davis	36 min
May 11, 7:57 AM EDT	Tornado Warning	JAX	Bacon, Coffee, Jeff Davis	48 min
May 11, 8:02 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Atkinson, Bacon, Coffee, Jeff Davis, Ware	43 min
May 11, 8:07 AM EDT	Tornado Warning	JAX	Appling, Bacon, Jeff Davis, Wayne	38 min
May 11, 8:34 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Pierce, Wayne	41 min
May 11, 8:46 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis, Ware, Wayne	44 min
May 11, 9:04 AM EDT	Tornado Warning	JAX	Coffee, Jeff Davis	41 min
May 11, 9:09 AM EDT	Tornado Warning	JAX	Wayne	26 min
May 11, 9:14 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Camden, Glynn, Pierce and 2 more	46 min
May 11, 9:26 AM EDT	Areal Flood Advisory	JAX	Appling, Bacon, Brantley, Coffee, Glynn, Jeff Davis and 2 more	2 hr
May 11, 9:31 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis, Ware, Wayne	29 min
May 11, 9:53 AM EDT	Severe Thunderstorm Warning	JAX	Brantley, Camden, Glynn, Wayne	52 min
May 11, 9:57 AM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Coffee, Pierce, Ware and 1 more	27 min
May 11, 9:59 AM EDT	Severe Thunderstorm Warning	JAX	Bacon, Coffee, Jeff Davis	31 min
May 11, 10:16 AM EDT	Tornado Warning	JAX	Wayne	29 min
May 11, 10:23 AM EDT	Tornado Warning	JAX	Brantley, Pierce	23 min
May 11, 10:45 AM EDT	Tornado Warning	JAX	Brantley, Camden, Glynn, Wayne	30 min
May 11, 11:10 AM EDT	Tornado Warning	JAX	Glynn	35 min
May 11, 11:34 AM EDT	Areal Flood Advisory	JAX	Brantley, Glynn, Wayne	86 min
May 11, 12:51 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Jeff Davis	24 min
May 11, 1:18 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Pierce, Wayne	27 min
May 11, 1:43 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	32 min
May 11, 2:07 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	23 min
May 11, 2:08 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Coffee, Jeff Davis	37 min
May 11, 2:14 PM EDT	Tornado Warning	JAX	Glynn, Wayne	31 min
May 11, 2:19 PM EDT	Tornado Warning	JAX	Appling, Jeff Davis	26 min
May 11, 2:34 PM EDT	Tornado Warning	JAX	Glynn	26 min
May 11, 2:45 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Wayne	30 min
May 11, 2:52 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Bacon, Coffee, Ware	38 min
May 11, 3:20 PM EDT	Severe Thunderstorm Warning	JAX	Brantley, Pierce, Wayne	30 min
May 11, 3:51 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	24 min
May 11, 4:24 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Pierce, Wayne	36 min

Nearby

Red Flag Warnings in Georgia, 2008 Red Flag Warnings in Florida, 2008 Every red flag warning in 2008

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.