Alert archive / Georgia / Lake Wind Advisories in 2012

Lake Wind Advisory 8, NWS Jacksonville, FL

February 19, 20127 counties in Florida; 12 counties in Georgia

NWS Jacksonville, FL issued this lake wind advisory at Feb 19, 2012, 6:07 PM EST for 7 counties in Florida; 12 counties in Georgia. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Feb 19, 2012, 6:07 PM EST (23:07 UTC)
Expired: Feb 20, 2012, 12:00 AM EST
In force: 6 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 12:00Z, 11.1 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: 178 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 471 m above ground
0-6 km bulk shear: 78 kt
0-1 km storm-relative helicity: 396 m²/s²
0-3 km storm-relative helicity: 506 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake wind 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 lake wind advisory went out at Feb 19, 3:55 PM EST, 2 hours 12 minutes earlier.

Area forecast discussion, Feb 19, 3:55 PM EST, 2 hours 12 minutes before

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Hazardous weather outlook, Feb 19, 2:37 PM EST, 3 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
237 PM EST SUN FEB 19 2012

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-
GAZ132>136-149>154-162>166-201945-
ALTAMAHA SOUND GA TO FERNANDINA BEACH FL OUT 20 NM-
FERNANDINA BEACH TO ST AUGUSTINE FL OUT 20 NM-
ST AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-
ALTAMAHA SOUND GA TO FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE-
FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM OFFSHORE-
ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM OFFSHORE-HAMILTON-
SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY-ST JOHNS-
GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-COFFEE-JEFF DAVIS-BACON-
APPLING-WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-
COASTAL GLYNN-ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN-COASTAL CAMDEN-
237 PM EST SUN FEB 19 2012

THIS OUTLOOK IS FOR NORTHEAST FLORIDA ...SOUTHEAST GEORGIA AND
THE ADJACENT COASTAL WATERS.

...GALE WARNING FOR THE COASTAL WATERS THROUGH TONIGHT...

...WIND ADVISORY UNTIL 6 PM...

...LAKE WIND ADVISORY UNTIL 6 PM...

.DAY ONE...THIS AFTERNOON AND TONIGHT...

GUSTY WINDS WILL CONTINUE THIS AFTERNOON...INTO TONIGHT...AS A
COLD FRONT TRACKS SOUTHEAST ACROSS THE REGION. THE STRONGEST WINDS
THIS AFTERNOON ARE EXPECTED TO BE IN ADVANCE OF THE COLD FRONT
OVER THE EASTERN HALF OF THE FORECAST AREA. GALE FORCE WIND GUSTS
CAN ALSO BE EXPECTED OVER THE COASTAL WATERS INTO TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

SMALL CRAFT ADVISORIES WILL CONTINUE FOR THE COASTAL WATERS
MONDAY. WITH ONSHORE FLOW...THE RIP CURRENT RISK WILL
INCREASE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUESTED AT THIS TIME.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.

In the hours before

Local storm report, Feb 19, 5:04 PM EST, 1 hour 3 minutes before

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Local storm report, Feb 19, 5:12 PM EST, 55 minutes before

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Local storm report, Feb 19, 5:14 PM EST, 53 minutes before

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Local storm report, Feb 19, 5:18 PM EST, 49 minutes before

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Local storm report, Feb 19, 5:20 PM EST, 47 minutes before

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Local storm report, Feb 19, 5:22 PM EST, 45 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
Feb 19, 2:15 AM EST	Lake Wind Advisory	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	16 hr
Feb 19, 3:06 AM EST	Gale Warning	JAX		24 hr
Feb 19, 3:06 AM EST	Small Craft Advisory	JAX		10 hr
Feb 19, 2:19 PM EST	Wind Advisory	JAX	Bradford, Flagler, Nassau	4 hr
Feb 19, 3:31 PM EST	Red Flag Warning	JAX	Baker, Bradford, Nassau, Suwannee, Union	3 hr
Feb 18, 10:37 PM EST	Tornado Warning	JAX	Atkinson, Clinch, Coffee	38 min
Feb 18, 10:43 PM EST	Special Weather Statement	JAX	Pierce	62 min
Feb 18, 11:00 PM EST	Tornado Warning	JAX	Bacon, Brantley, Pierce, Ware	45 min
Feb 18, 11:42 PM EST	Severe Thunderstorm Warning	JAX	Brantley, Pierce, Ware, Wayne	33 min
Feb 19, 2:20 AM EST	Special Weather Statement	JAX	Brantley, Charlton, Ware	40 min
Feb 19, 3:07 AM EST	Special Weather Statement	JAX	Clinch, Echols	38 min
Feb 19, 7:26 AM EST	Special Weather Statement	JAX	Glynn	34 min

Nearby

Lake Wind Advisories in Georgia, 2012 Lake Wind Advisories in Florida, 2012 Every lake wind advisory in 2012

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.