Alert archive / Georgia / Lake Wind Advisories in 2012

Lake Wind Advisory 46, NWS Jacksonville, FL

October 30, 20127 counties in Florida; 12 counties in Georgia

NWS Jacksonville, FL issued this lake wind advisory at Oct 30, 2012, 4:04 AM EDT for 7 counties in Florida; 12 counties in Georgia. It took effect at Oct 30, 2012, 10:00 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Oct 30, 2012, 4:04 AM EDT (08:04 UTC)
In effect from: Oct 30, 2012, 10:00 AM EDT
Expired: Oct 30, 2012, 7:00 PM EDT
In force: 9 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, 8.1 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2331 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 10 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 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 Oct 30, 3:35 AM EDT, 29 minutes earlier.

Area forecast discussion, Oct 30, 3:35 AM EDT, 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
335 AM EDT TUE OCT 30 2012

...BREEZY TODAY...NEAR RECORD LOWS ACROSS INLAND NORTHEAST
FLORIDA TONIGHT...

.SHORT TERM...TODAY THROUGH THURSDAY...TIGHT PRESSURE GRADIENT
REMAINS OVER THE AREA WITH SANDY OVER PA AND HIGH PRESSURE RIDGE
ALONG THE MS RIVER VALLEY. EXPECT LAKE WIND ADVISORY CONDITIONS
AGAIN TODAY WITH NW WINDS AROUND 20 MPH AND GUSTS AROUND 30 MPH.
DRY AND COOL PATTERN WILL CONTINUE WITH HIGHS TODAY ONLY IN THE
60S AND LOWS INLAND TONIGHT IN THE UPPER 30S. WINDS WILL BE A
LITTLE LIGHTER INLAND TONIGHT SO MIN TEMPERATURES MAY COME CLOSE
TO NEAR RECORD LOWS INLAND. HAVE GONE CLOSE TO GFS MOS TEMPERATURE
GUIDANCE. GRADUAL WARMING TREND FOR WEDNESDAY AND THURSDAY AS
SANDY SHIFTS NORTH INTO CANADA WHICH WILL WEAKEN THE GRADIENT AND
COLD AIR ADVECTION OVER NE FL/SE GA.

RECORD LOWS WED OCT 31ST
JAX 38/1993
GNV 35/1963

.LONG TERM...FRIDAY THROUGH MONDAY...DRY WEATHER WILL CONTINUE IN
THE EXTENDED PERIOD WITH TEMPERATURES RETURNING TO CLIMATOLOGICAL
LEVELS. HIGH PRESSURE WILL DOMINATE THE AREA WITH LIGHT WINDS. A
COLD FRONT WILL APPROACH THE AREA ON MONDAY WITH RAIN CHANCES
LOOKING TOO LOW TO MENTION IN FORECAST AT THIS TIME.

&&

.AVIATION...VFR. WINDS WILL BE W AROUND 260-290 DEG TODAY WITH
INCREASING SPEEDS TO ABOUT 15-20G30KT. EARLY THIS MORNING...LIGHTER
WINDS AT SFC AND WINDY CONDS IN THE 1-2 KFT LAYER INDICATE LLWS IS A
CONCERN THROUGH ABOUT 13-14Z BEFORE LOW LEVEL MIXING DEVELOPS. WINDS
SHOULD DECREASE AROUND SUNSET THIS EVENING TO ABOUT 10 KT.

&&

.MARINE...WINDS ARE STRONG WLY 25-30G35KT. SEAS AT 41012 NOT
REPORTED FOR A WHILE BUT REPORT HAD 9 FT AT 04Z...CLOSE TO WHAT THE
SWAN WAS INDICATING. A SHIP REPORT ABOUT 70 MI E FROM JEKYLL ISLAND
MEASURED W WIND 45 KT...WHICH LOOKS POSSIBLE IF ANEMOMETER HEIGHT IS
60-90 FT OFF THE SEA SFC, SO SCA TO 20 NM AND GALE WARNING OFFSHORE
LOOK GOOD. MAY BE A LULL IN WIND GUSTS AT TIMES TO GALE FORCE BUT
OVERALL FREQUENT GUSTS LOOK LIKELY. GALE WARNING CONDITIONS SUBSIDE
EARLY WED AND SCA CONDS NEARSHORE WILL SLOWLY WIND DOWN IN THE
MORNING AS WELL. STILL ANTICIPATE HAZARDOUS MARINE CONDS FOR SMALL
BOATERS MOST OF WED AFTN INTO WED NIGHT. PRES GRADIENT WEAKENS THU
BUT STILL NWLY AND BREEZY OFFSHORE WATERS. HIGH PRES WILL BUILD INTO
THE REGION FRI AND SAT MAKING FOR MORE FAVORABLE BOATING CONDS.

RIP CURRENTS: ELY SWELLS STILL MODERATELY HIGH PER BUOY 41012 SO
WILL PROBABLY CONTINUE A MODERATE RISK TODAY. CONDS A BIT BETTER ON
FOR WED BUT STILL LOW-MODERATE CONDS DUE TO SMALLER E SWELLS.

&&

.FIRE WEATHER...RED FLAG WARNING WILL BE ISSUED FOR NE FL TODAY AND
FIRE DANGER STATEMENT FOR SE GA WHERE FUEL MOISTURES DO NOT APPEAR
LOW ENOUGH FOR RED FLAG. WILL ISSUE FIRE WX WATCH FOR WED IN NE FL
AS WINDS...LOW RH...ERC VALUES...AND PERHAPS ELEVATED DISPERSION
LEVELS MAY PROMPT RED FLAG WARNING AGAIN.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  64  36  69  41 /   0   0   0   0
SSI  64  44  66  49 /   0   0   0   0
JAX  65  38  70  47 /   0   0   0   0
SGJ  65  46  68  53 /   0   0   0   0
GNV  66  39  71  47 /   0   0   0   0
OCF  67  40  72  49 /   0   0   0  10

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...LAKE WIND ADVISORY FROM 10 AM THIS MORNING TO 7 PM EDT THIS
     EVENING FOR ALACHUA-BAKER-BRADFORD-CLAY-COLUMBIA-DUVAL-
     FLAGLER-GILCHRIST-HAMILTON-MARION-NASSAU-PUTNAM-ST JOHNS-
     SUWANNEE-UNION.

     FIRE WEATHER WATCH FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY
     EVENING FOR ALACHUA-BAKER-BRADFORD-CLAY-COLUMBIA-DUVAL-
     FLAGLER-GILCHRIST-HAMILTON-MARION-NASSAU-PUTNAM-ST JOHNS-
     SUWANNEE-UNION.

     RED FLAG WARNING FROM 11 AM THIS MORNING TO 7 PM EDT THIS
     EVENING FOR ALACHUA-BAKER-BRADFORD-CLAY-COLUMBIA-DUVAL-
     FLAGLER-GILCHRIST-HAMILTON-MARION-NASSAU-PUTNAM-ST JOHNS-
     SUWANNEE-UNION.

GA...LAKE WIND ADVISORY FROM 10 AM THIS MORNING TO 7 PM EDT THIS
     EVENING FOR APPLING-ATKINSON-BACON-BRANTLEY-CHARLTON-CLINCH-
     COASTAL CAMDEN-COASTAL GLYNN-COFFEE-ECHOLS-INLAND CAMDEN-
     INLAND GLYNN-JEFF DAVIS-PIERCE-WARE-WAYNE.

AM...GALE WARNING UNTIL 5 AM EDT WEDNESDAY FOR 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.

     SMALL CRAFT ADVISORY UNTIL 3 PM EDT WEDNESDAY FOR 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.

&&

ZIBURA/SHASHY/MCALLISTER

Hazardous weather outlook, Oct 29, 11:15 PM EDT, 4 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1115 PM EDT MON OCT 29 2012

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-
GAZ132>136-149>154-162>166-301000-
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-
1115 PM EDT MON OCT 29 2012

...SMALL CRAFT ADVISORY IN EFFECT FOR THE ADJACENT COASTAL WATERS...

...GALE WARNING IN EFFECT FOR OFFSHORE WATERS...

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

.DAY ONE...REST OF TONIGHT...

LARGE SWELLS FROM HURRICANE SANDY WILL CONTINUE TO PRODUCE AN
ELEVATED RIP CURRENT RISK THROUGH TUESDAY. SWELLS COMBINED WITH
ELEVATED WINDS WILL ALSO CONTINUE SMALL CRAFT ADVISORY CONDITIONS
OVER THE ADJACENT COASTAL WATERS AND GALE CONDITIONS OFFSHORE WATERS.

LOW TEMPERATURES TONIGHT WILL PLUMMET INTO THE UPPER 30S AND LOWER
40S...WITH NORMALLY COLDER LOCALES LIKELY FALLING INTO THE
MID 30S. WINDS WILL REMAIN ELEVATED BETWEEN 10 AND 15 MPH...AND THE
COMBINATION OF THESE WINDS WITH COLD TEMPERATURES WILL CREATE WIND
CHILLS IN THE UPPER 20S TO AROUND 30 TUESDAY MORNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

...DRY AND WINDY CONDITIONS ON TUESDAY...

AN ELEVATED RIP CURRENT RISK WILL ALONG THE COAST TUESDAY.

DRY AND WINDY CONDITIONS ARE EXPECTED AGAIN ON TUESDAY WITH LOW
RELATIVE HUMIDITIES.

A LAKE WIND ADVISORY WILL BE LIKELY ON TUESDAY.

LOW TEMPERATURES WILL FALL INTO THE UPPER 30S IN NORMALLY COOLER
LOCALES INLAND WEDNESDAY MORNING.

.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.

ABE/ARS

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 30, 4:33 AM EDT	Fire Weather Watch	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	10 hr
Oct 30, 4:33 AM EDT	Red Flag Warning	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	14 hr
Oct 30, 2:13 PM EDT	Small Craft Advisory for Winds	JAX		32 hr
Oct 30, 2:37 PM EDT	Red Flag Warning	JAX	Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more	28 hr
Oct 30, 2:37 PM EDT	Fire Weather Watch	JAX	Appling, Atkinson, Bacon, Brantley, Clinch, Coffee and 4 more	14 hr

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.