Alert archive / Georgia / Frost Advisories in 2011
Frost Advisory 4, NWS Jacksonville, FL
NWS Jacksonville, FL issued this frost advisory at Mar 11, 2011, 1:18 PM EST for 6 counties in Florida; 12 counties in Georgia. It took effect at Mar 12, 2011, 2:00 AM EST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Mar 11, 2011, 1:18 PM EST (18:18 UTC)
- In effect from
- Mar 12, 2011, 2:00 AM EST
- Expired
- Mar 12, 2011, 8:23 AM EST
- In force
- 6 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
Jacksonville, FL (KJAX), launched 12:00Z, 6.3 hours before the alert went out and 78 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
- 978 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
609 WWUS72 KJAX 111818 AAA NPWJAX URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 118 PM EST FRI MAR 11 2011 FLZ020>025-030>032-035>037-040-GAZ132>136-149>153-162>165-121400- /O.NEW.KJAX.FR.Y.0004.110312T0700Z-110312T1400Z/ /O.CON.KJAX.LW.Y.0015.000000T0000Z-110311T2300Z/ HAMILTON-SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY- GILCHRIST-ALACHUA-PUTNAM-MARION-COFFEE-JEFF DAVIS-BACON-APPLING- WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-ECHOLS-CLINCH- CHARLTON-INLAND CAMDEN- INCLUDING THE CITIES OF...JASPER...LIVE OAK...LAKE CITY... MACCLENNY...FERNANDINA BEACH...JACKSONVILLE...LAKE BUTLER... STARKE...GREEN COVE SPRINGS...TRENTON...GAINESVILLE...PALATKA... OCALA...DOUGLAS...HAZLEHURST...ALMA...BAXLEY...JESUP...PEARSON... WAYCROSS...BLACKSHEAR...NAHUNTA...STATENVILLE...HOMERVILLE... FOLKSTON...WOODBINE 118 PM EST FRI MAR 11 2011 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EST SATURDAY... THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 9 AM EST SATURDAY. A LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. WEST TO NORTHWEST WINDS WILL INCREASE TO 15 TO 20 MPH WITH PEAK WIND GUSTS AROUND 30 MPH AT TIMES THIS AFTERNOON. WINDS WILL DIMINISH QUICKLY AROUND SUNSET. CLEAR SKIES AND LIGHT WINDS OVERNIGHT WILL ALLOW FOR LOW TEMPERATURES TO BOTTOM OUT IN THE LOWER TO MID 30S ACROSS INLAND LOCATIONS. WHILE BRIEF SUB-FREEZING TEMPERATURES WILL BE POSSIBLE...MAINLY ACROSS INLAND SOUTHEAST GEORGIA AND THE SUWANNEE RIVER VALLEY OF NORTH FLORIDA...DURATIONS ARE EXPECTED TO BE LESS THAN 2 HOURS. THE MAIN IMPACT FROM THE COLD TEMPERATURES TONIGHT WILL BE A WIDESPREAD FROST EVENT AS WINDS BECOME CALM TOWARD MORNING AND ALLOW MOISTURE ON THE GROUND FROM THE LAST RAIN EVENT TO AID IN FROST FORMATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 20 TO 25 MPH OR GUSTS OF 30 TO 39 MPH ARE EXPECTED. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. BOATERS IN THE ADVISORY AREA SHOULD AVOID OPEN WATER AND STAY CLOSE TO SHORE IN WIND PROTECTED INLETS. HIGH PROFILE VEHICLES SHOULD USE EXTRA CAUTION WHEN TRAVELING AS WELL. A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ FLZ033-038-GAZ154-166-112300- /O.CON.KJAX.LW.Y.0015.000000T0000Z-110311T2300Z/ ST JOHNS-FLAGLER-COASTAL GLYNN-COASTAL CAMDEN- INCLUDING THE CITIES OF...ST AUGUSTINE...PALM COAST...BRUNSWICK... ST MARYS 118 PM EST FRI MAR 11 2011 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING... A LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING. WEST TO NORTHWEST WINDS WILL INCREASE TO 15 TO 20 MPH WITH PEAK WIND GUSTS AROUND 30 MPH AT TIMES THIS AFTERNOON. WINDS WILL DIMINISH QUICKLY AROUND SUNSET. PRECAUTIONARY/PREPAREDNESS ACTIONS... A LAKE WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 20 TO 25 MPH OR GUSTS OF 30 TO 39 MPH ARE EXPECTED. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. BOATERS IN THE ADVISORY AREA SHOULD AVOID OPEN WATER AND STAY CLOSE TO SHORE IN WIND PROTECTED INLETS. HIGH PROFILE VEHICLES SHOULD USE EXTRA CAUTION WHEN TRAVELING AS WELL. && $$
3 follow-up statements
280 WWUS72 KJAX 112230 AAA NPWJAX URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 530 PM EST FRI MAR 11 2011 FLZ020>025-030>032-035>037-040-GAZ132>136-149>153-162>165-121330- /O.CAN.KJAX.LW.Y.0015.000000T0000Z-110311T2300Z/ /O.CON.KJAX.FR.Y.0004.110312T0700Z-110312T1400Z/ HAMILTON-SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY- GILCHRIST-ALACHUA-PUTNAM-MARION-COFFEE-JEFF DAVIS-BACON-APPLING- WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-ECHOLS-CLINCH- CHARLTON-INLAND CAMDEN- INCLUDING THE CITIES OF...JASPER...LIVE OAK...LAKE CITY... MACCLENNY...FERNANDINA BEACH...JACKSONVILLE...LAKE BUTLER... STARKE...GREEN COVE SPRINGS...TRENTON...GAINESVILLE...PALATKA... OCALA...DOUGLAS...HAZLEHURST...ALMA...BAXLEY...JESUP...PEARSON... WAYCROSS...BLACKSHEAR...NAHUNTA...STATENVILLE...HOMERVILLE... FOLKSTON...WOODBINE 530 PM EST FRI MAR 11 2011 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EST SATURDAY... ...LAKE WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS CANCELLED THE LAKE WIND ADVISORY. A FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EST SATURDAY. WINDS WILL CONTINUE TO DIMINISH IN THE EVENING HOURS. CLEAR SKIES AND LIGHT WINDS OVERNIGHT WILL ALLOW FOR LOW TEMPERATURES TO BOTTOM OUT IN THE LOWER TO MID 30S ACROSS INLAND LOCATIONS. WHILE BRIEF SUB-FREEZING TEMPERATURES WILL BE POSSIBLE...MAINLY ACROSS INLAND SOUTHEAST GEORGIA AND THE SUWANNEE RIVER VALLEY OF NORTH FLORIDA...DURATIONS ARE EXPECTED TO BE LESS THAN 2 HOURS. THE MAIN IMPACT FROM THE COLD TEMPERATURES TONIGHT WILL BE A WIDESPREAD FROST EVENT AS WINDS BECOME CALM TOWARD MORNING AND ALLOW MOISTURE ON THE GROUND FROM THE LAST RAIN EVENT TO AID IN FROST FORMATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ FLZ033-038-GAZ154-166-112330- /O.CAN.KJAX.LW.Y.0015.000000T0000Z-110311T2300Z/ ST JOHNS-FLAGLER-COASTAL GLYNN-COASTAL CAMDEN- INCLUDING THE CITIES OF...ST AUGUSTINE...PALM COAST...BRUNSWICK... ST MARYS 530 PM EST FRI MAR 11 2011 ...LAKE WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS CANCELLED THE LAKE WIND ADVISORY. WINDS WILL CONTINUE TO DIMINISH IN THE EVENING HOURS. $$
378 WWUS72 KJAX 120344 AAA NPWJAX URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 1044 PM EST FRI MAR 11 2011 FLZ020>025-030>032-035>037-040-GAZ132>136-149>153-162>165-121400- /O.CON.KJAX.FR.Y.0004.110312T0700Z-110312T1400Z/ HAMILTON-SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY- GILCHRIST-ALACHUA-PUTNAM-MARION-COFFEE-JEFF DAVIS-BACON-APPLING- WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-ECHOLS-CLINCH- CHARLTON-INLAND CAMDEN- INCLUDING THE CITIES OF...JASPER...LIVE OAK...LAKE CITY... MACCLENNY...FERNANDINA BEACH...JACKSONVILLE...LAKE BUTLER... STARKE...GREEN COVE SPRINGS...TRENTON...GAINESVILLE...PALATKA... OCALA...DOUGLAS...HAZLEHURST...ALMA...BAXLEY...JESUP...PEARSON... WAYCROSS...BLACKSHEAR...NAHUNTA...STATENVILLE...HOMERVILLE... FOLKSTON...WOODBINE 1044 PM EST FRI MAR 11 2011 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EST SATURDAY... A FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EST SATURDAY. CLEAR SKIES AND CALM TO LIGHT WINDS OVERNIGHT WILL ALLOW FOR LOW TEMPERATURES TO BOTTOM OUT IN THE LOWER TO MID 30S ACROSS INLAND LOCATIONS. WHILE BRIEF SUB-FREEZING TEMPERATURES WILL BE POSSIBLE... MAINLY ACROSS INLAND SOUTHEAST GEORGIA AND THE SUWANNEE RIVER VALLEY OF NORTH FLORIDA...DURATIONS ARE EXPECTED TO FALL SHORT OF THAT NEEDED FOR FREEZE WARNINGS. THE MAIN IMPACT FROM THE COLD TEMPERATURES TONIGHT WILL BE A WIDESPREAD FROST EVENT AS CALM WINDS ALLOW MOISTURE ON THE GROUND FROM THE LAST RAIN EVENT TO AID IN WIDESPREAD FROST FORMATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
504 WWUS72 KJAX 121323 AAA NPWJAX URGENT - WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 823 AM EST SAT MAR 12 2011 FLZ020>025-030>032-035>037-040-GAZ132>136-149>153-162>165-121430- /O.CAN.KJAX.FR.Y.0004.000000T0000Z-110312T1400Z/ HAMILTON-SUWANNEE-COLUMBIA-BAKER-NASSAU-DUVAL-UNION-BRADFORD-CLAY- GILCHRIST-ALACHUA-PUTNAM-MARION-COFFEE-JEFF DAVIS-BACON-APPLING- WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-ECHOLS-CLINCH- CHARLTON-INLAND CAMDEN- INCLUDING THE CITIES OF...JASPER...LIVE OAK...LAKE CITY... MACCLENNY...FERNANDINA BEACH...JACKSONVILLE...LAKE BUTLER... STARKE...GREEN COVE SPRINGS...TRENTON...GAINESVILLE...PALATKA... OCALA...DOUGLAS...HAZLEHURST...ALMA...BAXLEY...JESUP...PEARSON... WAYCROSS...BLACKSHEAR...NAHUNTA...STATENVILLE...HOMERVILLE... FOLKSTON...WOODBINE 823 AM EST SAT MAR 12 2011 ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS CANCELLED THE FROST ADVISORY. TEMPERATURES HAVE WARMED INTO THE 40S THIS MORNING ENDING THE FROST THREAT. $$
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 Mar 11, 11:09 AM EST, 2 hours 9 minutes earlier.
Area forecast discussion, Mar 11, 11:09 AM EST, 2 hours 9 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1109 AM EST FRI MAR 11 2011
.UPDATE...
LOCAL RAOBS SHOWING WINDS CLOSE TO 30 KNOTS AT 1-2KFT SO HAVE
ISSUED LAKE WIND ADVISORY FOR ALL AREAS TODAY WITH GUSTS TO 30 MPH
EXPECTED. BOUNDARY LAYER MIXING HAS ALLOWED ALL LOW CLOUDS TO MIX
OUT AND EXPECT SUNNY SKIES AND WINDY CONDS WITH MAX TEMPS REACHING
THE LOWER TO MID 60S MID/LATE AFTN.
STILL GONNA BE A CLOSE CALL FOR A POSSIBLE INLAND FREEZE OVER THE
SUWANNEE RIVER VALLEY...WITH ABUNDANT FROST ACRS THE REMAINDER OF
INLAND NERN FL. WILL TAKE A FINAL LOOK WITH THE NEW MODEL GUIDANCE
WITH AFTERNOON PACKAGE.
&&
.AVIATION...
VFR CONDS WITH GUSTY W/NW WINDS AT 15G20-25 KNOTS.
&&
.MARINE...
SMALL CRAFT WINDS WILL LINGER UNTIL THE AFTERNOON HOURS ACROSS THE
OFFSHORE WATERS AND WILL DROP THE HEADLINE ACRS THE NEARSHORE
WATERS WITH THE MORNING UPDATE.
&&
.FIRE WEATHER...
WENT AHEAD AND UPGRADED SERN GA TO RED FLAG WARNING AS EXPECT AT
LEAST FREQUENT 25 MPH GUSTS THROUGH THE AFTERNOON WITH RH VALUES
FALLING TO 30% OR LESS...SO RED FLAGS HAVE BEEN POSTED FOR ALL
LOCATIONS THIS AFTERNOON.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 61 33 72 42 / 0 0 0 0
SSI 59 41 67 48 / 0 0 0 0
JAX 62 35 71 42 / 0 0 0 0
SGJ 62 42 67 46 / 0 0 0 0
GNV 64 32 75 39 / 0 0 0 0
OCF 65 33 74 39 / 0 0 0 0
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...LAKE WIND ADVISORY UNTIL 6 PM EST THIS EVENING FOR ALACHUA-BAKER-
BRADFORD-CLAY-COLUMBIA-DUVAL-FLAGLER-GILCHRIST-HAMILTON-
MARION-NASSAU-PUTNAM-ST JOHNS-SUWANNEE-UNION.
RED FLAG WARNING UNTIL 6 PM EST THIS EVENING FOR ALACHUA-BAKER-
BRADFORD-CLAY-COLUMBIA-DUVAL-FLAGLER-GILCHRIST-HAMILTON-
MARION-NASSAU-PUTNAM-ST JOHNS-SUWANNEE-UNION.
GA...LAKE WIND ADVISORY UNTIL 6 PM EST THIS EVENING FOR APPLING-
ATKINSON-BACON-BRANTLEY-CHARLTON-CLINCH-COASTAL CAMDEN-
COASTAL GLYNN-COFFEE-ECHOLS-INLAND CAMDEN-INLAND GLYNN-JEFF
DAVIS-PIERCE-WARE-WAYNE.
RED FLAG WARNING UNTIL 6 PM EST 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...SMALL CRAFT ADVISORY UNTIL 3 PM EST THIS AFTERNOON 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.
&&
HESS/ENYEDI/WALKERHazardous weather outlook, Mar 11, 9:45 AM EST, 3 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 945 AM EST FRI MAR 11 2011 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-121015- 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- 945 AM EST FRI MAR 11 2011 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT... ...LAKE WIND ADVISORY IN EFFECT TODAY... WEST TO NORTHWEST WINDS WILL INCREASE TO 15 TO 20 MPH WITH GUSTS UP TO 30 MPH AT TIMES THIS AFTERNOON. A LAKE WIND ADVISORY IS IN EFFECT. THE WINDY CONDITIONS WILL PROMOTE DANGEROUS FIRE WEATHER CONDITIONS ACROSS ALL OF NORTHEAST FLORIDA AND SOUTHEAST GEORGIA THIS AFTERNOON AND RED FLAG WARNINGS ARE IN EFFECT. LINGERING EASTERLY SWELLS WILL MAINTAIN A MODERATE RISK OF RIP CURRENTS AT AREA BEACHES. PLEASE REFER TO THE LATEST SURF ZONE FORECAST FOR DETAILS. ...AREAS OF FROST WILL DEVELOP WEST OF I-95 TONIGHT... LOW TEMPERATURES TONIGHT WILL RANGE FROM THE LOW TO MID 30S WEST OF THE I-95 CORRIDOR. AREAS OF FROST WILL DEVELOP. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... HAZARDOUS WEATHER IS NOT ANTICIPATED AT THIS TIME. .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. JDS/JCH
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 3:36 AM EST | Red Flag Warning | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 14 hr |
| Mar 11, 9:21 AM EST | Lake Wind Advisory | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 8 hr |
| Mar 11, 2:14 PM EST | Fire Weather Watch | JAX | Baker, Bradford, Flagler, Gilchrist, Nassau, Suwannee and 1 more | 11 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.