Alert archive / Florida / Special Weather Statements in 2012
Special Weather Statement, NWS Jacksonville, FL
NWS Jacksonville, FL issued this special weather statement at Jul 18, 2012, 2:15 PM EDT for Gilchrist County, Florida. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 18, 2012, 2:15 PM EDT (18:15 UTC)
- Expired
- Jul 18, 2012, 3:00 PM EDT
- In force
- 45 min
- Issued by
- NWS Jacksonville, FL
County Gilchrist County, FL
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 6.3 hours before the alert went out and 131 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
- 640 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 686 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 18, 1:57 PM EDT, 18 minutes earlier.
Area forecast discussion, Jul 18, 1:57 PM EDT, 18 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 157 PM EDT WED JUL 18 2012 .SHORT TERM /TONIGHT THROUGH FRIDAY/... SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP ACROSS NE FL...WITH INITIAL SHOWERS FORMING IN SE GA. AS INTERACTION WITH SEABREEZE BOUNDARIES INCREASE THIS AFTN...EXPECT PRECIP COVERAGE TO INCREASE TO NUMEROUS ACROSS NE FL...WITH HIGH END SCATTERED FOR SE GA. PRECIP WILL DECREASE THIS EVENING...WITH ONLY AN ISOLATED SHOWER OR TWO OVERNIGHT/EARLY THURSDAY. FOR THURSDAY/FRIDAY...THE REGION WILL REMAIN BETWEEN A TROUGH OF LOW PRESSURE TO THE NORTH...AND RIDGING ACROSS CENTRAL/SOUTH FLORIDA. SW FLOW WILL CONTINUE...WITH AFTN/EVENING SCATTERED SHOWERS AND TSTMS AS WEAK IMPULSES ROTATING AROUND THE UPPER TROUGH TO THE NORTH INTERACT WITH SEABREEZE BOUNDARIES. AS THE TROUGH GRADUALLY WEAKENS...AND RIDGING TO THE SOUTH AMPLIFIES SOME...EXPECT PRECIP COVERAGE FRIDAY TO BE SOMEWHAT LESS THAN THURSDAY. NEAR NORMAL TEMPERATURES WILL PREVAIL. .LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/... RIDGING TO THE SOUTH WILL CONTINUE TO NUDGE NORTHWARD SATURDAY RESULTING IN LOWER POPS ACROSS MOST OF NE FL...WITH CHANCE POPS ACROSS GA CLOSER TO A TROUGH OF LOW PRESSURE. FOR SUNDAY THROUGH EARLY NEXT WEEK...GFS/ECMWF BRINGS SOME TROPICAL MOISTURE NORTHWARD ACROSS THE REGION. WITH SOME DIFFERENCES AS TO HOW MUCH TAP IS BROUGHT INTO THE AREA...WILL USE CHANCE POPS FOR NOW. RIDGING IS PROGGED BY MIDWEEK FOR SOME DRYING. NEAR TO SLIGHTLY ABOVE NORMAL TEMPERATURES CAN BE EXPECTED. && .AVIATION... CONVECTION FIRING ALONG THE BASE OF THE UPPER LOW AND EXPECT CONVECTION AT THE JACKSONVILLE FIELDS THROUGH...AT LEAST...2200 UTC. LOOKING AT BASES ABOUT 4 KFT AT THIS TIME. && .MARINE... S/SW FLOW WILL PREVAIL FOR THE NEXT SEVERAL DAYS...AS SURFACE HIGH PRESSURE REMAINS ENTRENCHED TO THE SOUTH. WINDS WILL REMAIN UNDER SCEC CRITERIA...WITH SOME NOCTURNAL SURGE AT NIGHT OFFSHORE UP TO 15 KNOTS. SEAS WILL MOSTLY BE IN 2 TO 4 FOOT RANGE. RIP CURRENTS: MODERATE RISK INTO TONIGHT. LOW RISK THURSDAY WITH DECREASED EASTERLY SWELL. && .PRELIMINARY POINT TEMPS/POPS... AMG 72 93 73 93 / 40 60 60 50 SSI 75 91 76 92 / 40 40 40 40 JAX 72 92 73 93 / 50 60 60 40 SGJ 74 91 75 91 / 50 50 50 40 GNV 71 93 73 93 / 50 60 50 40 OCF 71 93 73 93 / 50 50 50 40 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && ALLEN/SANDRIK/KEEGAN
Hazardous weather outlook, Jul 18, 9:52 AM EDT, 4 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 952 AM EDT WED JUL 18 2012 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-GAZ132>136- 149>154-162>166-191000- 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- 952 AM EDT WED JUL 18 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COASTAL WATERS...NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. ...SCATTERED TO NUMEROUS THUNDERSTORMS THIS AFTERNOON INTO EARLY EVENING... ...MODERATE RISK OF RIP CURRENTS TODAY... .DAY ONE...TODAY AND TONIGHT. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO EARLY EVENING...WITH STORM MOTION TO THE NORTHEAST ABOUT 10 MPH. A FEW STORMS MAY BE STRONG AND PRODUCE GUSTY WINDS...LOCALLY HEAVY RAINFALL...AND FREQUENT LIGHTNING STRIKES. A MODERATE RISK OF RIP CURRENTS WILL CONTINUE TODAY DUE TO EASTERLY SWELLS. USE EXTRA CAUTION IF SWIMMING AT THE BEACHES AND ALWAYS SWIM WITHIN SIGHT OF LIFEGUARDS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. SCATTERED THUNDERSTORMS ARE EXPECTED AGAIN ON THURSDAY WITH LOWER CHANCES EXPECTED FRIDAY AND SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX.
In the hours before
Special weather statement, Jul 18, 2:15 PM EDT, 0 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 |
|---|---|---|---|---|
| Jul 18, 2:47 PM EDT | Special Weather Statement | JAX | Bradford | 28 min |
| Jul 18, 2:54 PM EDT | Special Weather Statement | JAX | Alachua | 36 min |
| Jul 18, 3:12 PM EDT | Special Weather Statement | JAX | Duval | 33 min |
| Jul 18, 3:17 PM EDT | Special Weather Statement | JAX | Bradford | 28 min |
| Jul 18, 3:41 PM EDT | Special Weather Statement | JAX | Duval | 34 min |
| Jul 18, 4:00 PM EDT | Special Weather Statement | JAX | Duval | 30 min |
| Jul 18, 4:05 PM EDT | Special Weather Statement | JAX | Baker, Columbia | 25 min |
| Jul 18, 4:25 PM EDT | Special Weather Statement | JAX | Nassau | 35 min |
| Jul 18, 4:37 PM EDT | Special Weather Statement | JAX | Duval | 23 min |
| Jul 18, 4:38 PM EDT | Special Weather Statement | JAX | Nassau | 37 min |
| Jul 18, 3:27 PM EDT | Tornado Warning | JAX | Glynn | 18 min |
| Jul 18, 3:53 PM EDT | Severe Thunderstorm Warning | JAX | Glynn | 22 min |
| Jul 18, 4:17 PM EDT | Special Weather Statement | JAX | Glynn | 28 min |
| Jul 18, 4:48 PM EDT | Special Weather Statement | JAX | Camden | 27 min |
| Jul 18, 4:56 PM EDT | Special Weather Statement | JAX | Charlton | 34 min |
| Jul 18, 5:39 PM EDT | Areal Flood Advisory | JAX | Camden, Glynn | 111 min |
Nearby
Special Weather Statements in Florida, 2012Every special weather statement 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.