Alert archive / Florida / Areal Flood Advisories in 2012
Areal Flood Advisory 21, NWS Jacksonville, FL
NWS Jacksonville, FL issued this areal flood advisory at May 29, 2012, 4:49 PM EDT for Baker County, Nassau County, Florida; Charlton County, Georgia. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- May 29, 2012, 4:49 PM EDT (20:49 UTC)
- Expired
- May 29, 2012, 5:14 PM EDT
- In force
- 25 min
- Issued by
- NWS Jacksonville, FL
- Area
- Storm-based polygon
Counties Baker County, FL, Nassau County, FL, Charlton County, GA
The radar
The Jacksonville radar (KJAX), 36 km from the middle of the area, began a volume at 20:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 8.8 hours before the alert went out and 36 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
- 262 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 633 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood 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 areal flood advisory went out at May 29, 2:09 PM EDT, 2 hours 40 minutes earlier.
Area forecast discussion, May 29, 2:09 PM EDT, 2 hours 40 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
209 PM EDT TUE MAY 29 2012
...BERYL EXITING TO THE NORTHEAST...
.SHORT TERM /TONIGHT THROUGH FRIDAY/...
TD BERYL CONTINUES TO MOVE NORTHEAST INTO SOUTHERN GEORGIA...WITH
A RAINBAND EXITING LAND AREAS INTO THE COASTAL WATERS. BEHIND THE
BAND...SCATTERED TO NUMEROUS SHOWERS WILL CROSS THE AREA THROUGH
LATE THIS AFTN...ALONG WITH ISOLATED THUNDERSTORMS. A FEW OF THE
STRONGER SHOWERS/STORMS COULD PRODUCE GUSTY WINDS WITH PERHAPS
A STORM OR TWO THAT COULD HAVE WEAK ROTATION. ACTIVITY WILL
DIMINISH THIS EVENING AS BERYL CONTINUES TO MOVE TO THE NORTHEAST.
WITH THE HEAVY RAINFALL POTENTIAL DIMINISHING...WILL CANCEL THE
FLOOD WATCH. UPPER 60S TO LOWER 70S WILL PREVAIL FOR LOW TEMPS
TNGT. FOR WEDNESDAY...WESTERLY FLOW WILL RESULT IN A WARMUP...WITH
HIGHS IN THE UPPER 80S TO LOWER 90S. WITH WEAK LIFT AND SUFFICIENT
HEATING...AND EXPECT SCATTERED SHWRS/TSTMS WILL DEVELOP WEDNESDAY
AFTN...BUT WITH LESSER COVERAGE THAN THIS AFTN.
AN UPPER TROUGH WILL DIG ACROSS THE SOUTHEASTERN UNITED STATES
FOR WEDNESDAY NIGHT THROUGH FRIDAY. IN ADDITION TO THE INSTABILITY
GENERATED BY DIURNAL HEATING AND SEA BREEZE INTERACTIONS...THE
PRESENCE OF THIS UPPER TROUGH WILL ACT TO FURTHER DESTABILIZE THE
ATMOSPHERE. NEAR TO JUST ABOVE NORMAL TEMPERATURES ARE EXPECTED
FOR THIS PERIOD.
.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
A WEAK SURFACE BOUNDARY WILL SLIDE ACROSS THE REGION FRIDAY NIGHT
INTO EARLY SATURDAY. RIDGING AT THE SURFACE AND ALOFT WILL BEGIN
TO BUILD ACROSS THE SOUTHEASTERN UNITED STATES FOR SUNDAY THROUGH
THE FIRST HALF OF NEXT WEEK. THIS PATTERN SHOULD RESULT IN ABOVE
NORMAL TEMPERATURES...WITH LOWER RAIN CHANCES.
&&
.AVIATION...
AS THE REMNANTS OF BERYL CONTINUES ITS NORTHEAST TRACK CONDITIONS
WILL IMPROVE ACROSS AREA TERMINALS THIS 18Z TAF PERIOD. BANDS WILL
CONTINUE TO SPIN AROUND THIS SYSTEM THROUGH THE AFTERNOON AND
EVENING HOURS. THEREFORE...MVFR WITH A FEW BRIEF PERIODS OF IFR IN
HEAVIER SHOWERS WILL BE POSSIBLE THROUGH THIS EVENING. A FEW
THUNDERSTORMS WILL ALSO BE POSSIBLE ACROSS THE AREA INTO THE EARLY
EVENING. REDUCED CONDITIONS WILL LINGER A LITTLE LONGER TONIGHT AT
KSSI...CLOSER TO THE EXITING BERYL. WIND GUSTS WILL ALSO DIMINISH
TONIGHT.
CONDITIONS ARE EXPECTED TO TREND TOWARD VFR TONIGHT...WITH VFR
EXPECTED TO PREVAIL WEDNESDAY MORNING.
&&
.MARINE...
WINDS WILL TURN TO THE SOUTHWEST TONIGHT AS BERYL EXITS TO THE NORTH
THEN EAST. WILL CONTINUE SCA FOR INNER WATERS THROUGH TONIGHT AND
FOR THE OUTER WATERS THROUGH WEDNESDAY MORNING. CONDITIONS UNDER
SCEC WILL PREVAIL WEDNESDAY NIGHT THROUGH THE WEEKEND.
RIP CURRENTS: MODERATE RISK THROUGH TONIGHT...LOW RISK WEDNESDAY.
&&
.HYDROLOGY...
RECENT HEAVY RAINS FROM TS BERYL WILL RESULT IN SIGNIFICANT RISES
ALONG THE ST MARYS RIVER AT MACCLENNY AND THE NORTH FORK OF THE
BLACK CREEK AT MIDDLEBURG OVER THE NEXT FEW DAYS. NO SIGNIFICANT
RISES ARE EXPECTED ALONG OUR OTHER RIVER SITES.
THE ST MARYS RIVER AT MACCLENNY IS FORECAST TO CREST AT 10.7 FEET
THURSDAY MORNING. THE RIVER IS FORECAST TO REMAIN BELOW FLOOD
STAGE...BUT WILL CREST ABOVE ACTION STAGE. ACTION STAGE FOR THE ST
MARYS RIVER AT MACCLENNY IS 10.0 FEET...AND FLOOD STAGE IS 12.0
FEET.
THE NORTH FORK OF THE BLACK CREEK AT MIDDLEBURG IS FORECAST TO
CREST AT 12.0 FEET WEDNESDAY AFTERNOON. THE RIVER IS FORECAST TO
REMAIN BELOW FLOOD STAGE...BUT WILL CREST ABOVE ACTION STAGE.
ACTION STAGE FOR THE NORTH FORK OF THE BLACK CREEK AT MIDDLEBURG
IS 11.0 FEET...AND FLOOD STAGE IS 16.0 FEET.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 70 94 67 94 / 40 40 40 50
SSI 71 86 73 87 / 50 30 30 30
JAX 70 91 69 91 / 40 40 40 40
SGJ 71 88 72 87 / 40 40 40 40
GNV 69 92 69 92 / 40 30 30 30
OCF 71 92 70 92 / 40 30 30 30
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...SMALL CRAFT ADVISORY UNTIL NOON 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 6 AM 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.
&&
ALLEN/STRUBLE/WOLF/ENYEDI/CHASEHazardous weather outlook, May 29, 3:57 PM EDT, 52 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 357 PM EDT TUE MAY 29 2012 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040- GAZ132>136-149>154-162>166-302000- 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- 357 PM EDT TUE MAY 29 2012 ...SMALL CRAFT ADVISORY IN EFFECT FOR THE COASTAL WATERS... ...MODERATE RISK OF RIP CURRENTS... THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...THIS AFTERNOON AND TONIGHT... A FEW ADDITIONAL RAINBANDS AROUND THE PERIPHERY OF TROPICAL DEPRESSION BERYL WILL LINGER INTO THIS EVENING. THESE BANDS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAINFALL AND AN OCCASIONAL LIGHTNING STRIKE. AN ISOLATED WEAK TORNADO ALSO CANNOT BE RULED OUT. SMALL CRAFT ADVISORIES WILL CONTINUE THROUGH TONIGHT OVER THE COASTAL WATERS AS STRONG SOUTH TO SOUTHWEST FLOW CONTINUES. MODERATE RISK OF RIP CURRENTS IS EXPECTED ALONG THE COAST TODAY. REFER TO THE SURF ZONE FORECAST FOR MORE DETAILS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... SCATTERED AFTERNOON AND EVENING THUNDERSTORMS CAN BE EXPECTED EACH DAY FROM WEDNESDAY THROUGH SATURDAY. .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
In the hours before
Special weather statement, May 29, 2:45 PM EDT, 2 hours 4 minutes before
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</html>Special weather statement, May 29, 3:39 PM EDT, 1 hour 10 minutes before
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</html>Local storm report, May 29, 4:23 PM EDT, 26 minutes before
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</html>Special weather statement, May 29, 4:44 PM EDT, 5 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 8:22 PM EDT | Lake Wind Advisory | JAX | Nassau | 8 hr |
| May 28, 8:46 PM EDT | Special Weather Statement | JAX | Alachua | 44 min |
| May 28, 9:23 PM EDT | Special Weather Statement | JAX | Flagler | 52 min |
| May 28, 9:29 PM EDT | Special Weather Statement | JAX | Alachua | 46 min |
| May 28, 9:34 PM EDT | Areal Flood Advisory | JAX | Alachua, Bradford, Clay, Marion, Putnam | 56 min |
| May 28, 9:56 PM EDT | Special Weather Statement | JAX | Saint Johns | 34 min |
| May 28, 10:13 PM EDT | Special Weather Statement | JAX | Marion, Putnam | 32 min |
| May 28, 10:28 PM EDT | Areal Flood Advisory | JAX | Alachua, Marion, Putnam | 62 min |
| May 28, 10:35 PM EDT | Special Marine Warning | JAX | 55 min | |
| May 28, 10:43 PM EDT | Special Weather Statement | JAX | Duval | 32 min |
| May 28, 10:46 PM EDT | Special Weather Statement | JAX | Marion | 29 min |
| May 28, 10:50 PM EDT | Areal Flood Warning | JAX | Marion | 3 hr |
| May 28, 11:18 PM EDT | Special Weather Statement | JAX | Marion | 42 min |
| May 28, 11:53 PM EDT | Special Weather Statement | JAX | Suwannee | 37 min |
| May 29, 12:00 AM EDT | Special Weather Statement | JAX | Marion | 30 min |
| May 29, 12:16 AM EDT | Flash Flood Warning | JAX | Marion | 3 hr |
| May 29, 12:40 AM EDT | Special Weather Statement | JAX | Columbia | 50 min |
| May 29, 12:51 AM EDT | Areal Flood Warning | JAX | Columbia, Gilchrist, Hamilton, Suwannee | 3 hr |
| May 29, 2:08 AM EDT | Special Weather Statement | JAX | Marion | 52 min |
| May 29, 2:50 AM EDT | Special Marine Warning | JAX | 55 min | |
| May 29, 3:10 AM EDT | Areal Flood Warning | JAX | Marion, Putnam | 4 hr |
| May 29, 3:58 AM EDT | Areal Flood Warning | JAX | Columbia, Hamilton, Suwannee | 3 hr |
| May 29, 4:40 AM EDT | Special Weather Statement | JAX | Suwannee | 35 min |
| May 29, 5:14 AM EDT | Flash Flood Warning | JAX | Suwannee | 3 hr |
| May 29, 5:17 AM EDT | Special Weather Statement | JAX | Suwannee | 43 min |
| May 29, 5:59 AM EDT | Special Weather Statement | JAX | Columbia | 31 min |
| May 29, 6:26 AM EDT | Special Weather Statement | JAX | Columbia | 34 min |
| May 29, 6:52 AM EDT | Areal Flood Warning | JAX | Baker, Columbia, Gilchrist, Union | 3 hr |
| May 29, 6:52 AM EDT | Special Weather Statement | JAX | Union | 38 min |
| May 29, 8:30 AM EDT | Special Weather Statement | JAX | Baker | 45 min |
| May 29, 9:26 AM EDT | Special Weather Statement | JAX | Alachua | 34 min |
| May 29, 9:51 AM EDT | Special Weather Statement | JAX | Alachua, Bradford | 39 min |
| May 29, 10:46 AM EDT | Special Weather Statement | JAX | Alachua | 44 min |
| May 29, 1:20 PM EDT | Special Weather Statement | JAX | Union | 40 min |
| May 29, 1:34 PM EDT | Special Weather Statement | JAX | Baker | 26 min |
| May 29, 1:46 PM EDT | Special Weather Statement | JAX | Columbia | 44 min |
| May 29, 1:53 PM EDT | Special Weather Statement | JAX | Union | 52 min |
| May 29, 2:18 PM EDT | Special Weather Statement | JAX | Citrus | 27 min |
| May 29, 2:45 PM EDT | Special Weather Statement | JAX | Bradford, Union | 60 min |
| May 29, 3:39 PM EDT | Special Weather Statement | JAX | Nassau | 36 min |
| May 29, 3:43 PM EDT | Tornado Warning | JAX | Bradford, Union | 32 min |
| May 29, 4:19 PM EDT | Special Weather Statement | JAX | Baker | 26 min |
| May 29, 4:44 PM EDT | Special Weather Statement | JAX | Duval | 46 min |
| May 29, 5:15 PM EDT | Special Weather Statement | JAX | Clay | 30 min |
| May 29, 5:45 PM EDT | Special Weather Statement | JAX | Clay | 30 min |
| May 29, 6:16 PM EDT | Special Weather Statement | JAX | Bradford, Clay, Gilchrist | 29 min |
| May 29, 6:43 PM EDT | Special Weather Statement | JAX | Alachua, Clay, Gilchrist | 32 min |
| May 29, 7:13 PM EDT | Special Weather Statement | JAX | Alachua | 32 min |
| May 29, 7:20 PM EDT | Severe Thunderstorm Warning | JAX | Alachua, Clay, Putnam | 40 min |
| May 29, 7:40 PM EDT | Special Weather Statement | JAX | Alachua | 50 min |
| May 29, 7:45 PM EDT | Areal Flood Advisory | JAX | Alachua, Putnam | 90 min |
| May 29, 7:53 PM EDT | Special Weather Statement | JAX | Putnam | 37 min |
| May 29, 4:06 PM EDT | Special Weather Statement | JAX | Camden | 24 min |
| May 29, 4:56 PM EDT | Special Weather Statement | JAX | Camden | 34 min |
Nearby
Areal Flood Advisories in Florida, 2012Areal Flood Advisories in Georgia, 2012Every areal flood 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; radar from the NEXRAD Level II archive.