Special Weather Statement, NWS Jacksonville, FL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
314 PM EDT THU JUL 2 2015

...STRONG TO SEVERE STORM POTENTIAL THIS AFTERNOON AND EVENING
ACROSS SE GA AND THE SUWANNEE RIVER VALLEY...

.NEAR TERM...THRU FRIDAY...

GREATER COVERAGE TODAY ACROSS NRN FL PENINSULA COMPARED TO YESTERDAY...
WITH CONVECTIVE EVOLUTION FOLLOWING THE HRRR FAIRLY WELL. SATELLITE/RADAR
TRENDS...AND LATEST HRRR...POINT TO TWO LARGE PRECIP AREAS THRU THIS EVENING.
THE FIRST IS ONGOING OVER MUCH OF NE FL FROM I-10 SOUTHWARD...EXPECT THIS
AREA OF SHOWERS/T-STORMS TO CONTINUE SPREADING EASTWARD...AND WILL HAVE LIKELY/
CATEGORICAL POPS THIS AREA THROUGH LATE AFTERNOON.  SECOND AREA DEVELOPING FROM FL
PANHANDLE UP TO SE AL...ANTICIPATE CONVECTIVE CLUSTERS TO MOVE EASTWARD ACROSS
PRIMARILY THE SOUTHERN HALF OF OUR SE GA FORECAST AREA...AND I-10 CORRIDOR OF
NE FL LATE THIS AFTERNOON INTO EARLY EVENING BEFORE DIMINISHING AND MOVING
OFFSHORE. HAVE 2ND LIKELY POPS REGION HERE 20Z-00Z. THE SECOND AREA HAS NOT
BEEN AFFECTED BY FIRST PRECIP AREA FURTHER S...SO SHOULD REMAIN UNSTABLE
TO SUPPORT T-STORMS THRU 00Z. HEAVY DOWNPOURS...STRONG GUSTY WINDS...AND
FREQUENT LIGHTNING EXPECTED WITH STORMS JAX-OCF-SGF AREAS WITH
FIRST PRECIP AREA AND I-10 CORRIDOR INTO SRN GA WITH 2ND PRECIP
AREA.

ACTIVITY SHOULD DIMINISH THIS EVENING...LEADING TO PARTLY CLOUDY SKIES WITH
LOW TEMPS GENERALLY LWR 70S INLAND...MID 70S COAST AND ST. JOHNS RIVER.

MODEL GUIDANCE FROM NAM/GFS/ECM ALL POINT TO CONSIDERABLY LOWER PRECIP COVERAGE
FRIDAY WITH SLIGHT RISE IN MID-LEVEL HEIGHTS AND SHORTWAVE ENERGY PASSING WELL
N OF FORECAST AREA. GOING WITH JUST 20 POPS ACROSS FORECAST AREA...EXCEPT 30 POP
SOUTHERNMOST PART OF FORECAST AREA. HIGH TEMPERATURES IN THE LWR-MID 90S
EXPECTED.

.SHORT TERM...FRI NIGHT THROUGH SUN NIGHT...

FRI NIGHT THROUGH SAT...LOWER RAIN CHANCES AND WARMER DAYTIME
HIGHS SAT AS STACKED RIDGING DOMINATES OVER THE CENTRAL FL
PENINSULA. EVENING PRECIP FRI WILL FADE SHORTLY AFTER SUNSET AS
LOWS COOL INTO THE LOW/MID 70S. SAT AFTN BEST CHANCES OF SHOWERS
AND STORM ACTIVITY WILL BE GENERALLY S OF I-10 IN NE FL WHERE SEA
BREEZE CONVERGENCE WILL COINCIDE WITH APPROACHING SHORT WAVE
TROUGH ENERGY LIFTING NE FROM THE CENTRAL GOMEX. ADVERTISED AFTN
RAIN CHANCES OF NEAR 40-50% FROM GNV-PALATKA SOUTHWARD TO ONLY
20-30% ACROSS SE GA WHERE HIGHS WILL RISE INTO THE MID/UPPER 90S
WITH HEAT INDICES NEAR 105.

SAT NIGHT THROUGH SUN NIGHT...RAIN CHANCES PROGRESSIVELY INCREASE
LATE SAT NIGHT THROUGH SUN AFTN WITH 50-60% COVERAGE EXPECTED BY
SUN AFTERNOON AS BOTH A SHORT WAVE TROUGH DEEPENS ACROSS THE
EASTERN GULF COAST REGION AND A SURFACE TROUGH BECOMES DIFFUSE
OVER SE GA. HIGHS IN THE LOWER 90S SUNDAY.

.LONG TERM...MON THROUGH THU...

MON-TUE...GOOD AGREEMENT BETWEEN THE GFS/ECMWF WITH MEAN LAYER
TROUGH CARVING SOUTHWARD DOWN THE SE ATLANTIC SEABOARD UNDER MOIST
SW STEERING FLOW OUT OF THE GULF OF MEXICO. THIS REGIME FAVORS
ABOVE NORMAL RAIN CHANCES OF NEAR 50% WITH ACTIVITY PRESSING
INLAND FROM THE GULF COAST REGION DURING THE MORNING THEN
BLOSSOMING ACROSS SE GA/EASTERN NE FL INTO THE AFTERNOON AND
EVENING AS WEST COAST SEA BREEZE INTERACTS WITH DIURNAL
INSTABILITY AND PASSING SHORT WAVE TROUGH ENERGY ALOFT IN THE
VICINITY OF THE SFC FRONT. HIGH TEMPS WILL RANGE FROM THE UPPER
80S TO NEAR 90 ACROSS THE SUWANNEE RIVER VALLEY AREA WHERE MORNING
CLOUDS WILL BE MOST PROBABLE...TO THE LOWER 90S TOWARD THE
ATLANTIC COAST. MUGGY OVERNIGHT CONDITIONS WITH LOWS IN THE 70S.

WED-THU...MODELS DIVERGE AS THE 00Z ECMWF ADVERTISED A TUTT
FORMING WITHIN A WEAKNESS IN THE SUB-TROPICAL RIDGE ACROSS THE
BAHAMAS WHILE THE 12Z GFS HOLDS DEEPENS THE LOW LEVEL AXIS DOWN
THE ATLANTIC SEABOARD AS AN UPPER RIDGE BUILDS FROM THE WEST WITH
THE BAHAMAS TUTT NOT UNTIL LATE FRI. THE 00Z ECMWF SOLUTION WOULD
BRING DRIER AND WARM CONDITIONS AS THE TUTT RETROGRADES ACROSS THE
FL PENINSULA WED...THEN HIGHER RAIN CHANCES ON THE EAST SIDE OF
THE UPPER LOW THU. THE 12Z GFS SOLUTION WOULD CONTINUE ELEVATED
RAIN CHANCES BOTH DAYS DUE TO THE LINGERING SURFACE TROUGH
INTERACTING WITH THE SEA BREEZE AND DIURNAL INSTABILITY...BUT
CONVECTION WOULD LIKELY BE MORE TAME GIVEN SUBSIDENCE ALOFT. AT
THIS TIME OPTED TO TREND BOTH RAIN CHANCES AND TEMPS TOWARD CLIMO
VALUES WITH AROUND 40% RAIN CHANCES AND HIGHS IN THE LOW 90S/MINS
IN THE LOW-MID 70S.

&&

.AVIATION...HAVE TEMPO FOR GUSTY TSRA CONDITIONS THRU 23Z WITH
VCTS CONTINUING THRU ABOUT 01Z. TWO PRIMARY TSRA THREATS TO TAF
SITES...FIRST CURRENTLY EXTENDS FROM W OF KJAX TO E OF KGNV WHICH
WILL CONTINUE MOVING EASTWARD THRU THE AFTERNOON. 2ND AREA IS OVER
TX PANHANDLE WHICH WILL MOVE EASTWARD ALONG I-10 CORRIDOR AND
COULD AFFECT KSSI/KJAX/KVQQ/KCRG SITES 21Z-00Z. WILL MONITOR
TRENDS TO SEE IF TSRA THREAT TOWARD 00Z INCREASES FOR THESE SITES.
ACTIVITY SHOULD DIMINISH THIS EVENING. LESSER TSRA COVERAGE IS
EXPECTED FRI...AND HAVE EXCLUDED MENTION IN LATEST TAFS FOR FRI
THRU 18Z.

&&

.MARINE...SSW WINDS 10-15 KTS WILL PREVAIL WITH EVENING AND
NOCTURNAL SURGES FROM THE SW OF 15-20 KTS OVER THE OFFSHORE LEGS.
COMBINED SEAS 2-4 FT WILL PREVAIL NEARSHORE WITH UP TO 5-6 FT NEAR
THE GULF STREAM OFFSHORE AT NIGHT WITH THE SURGES.

RIP CURRENTS: LOW RISK OF RIP CURRENTS TODAY AND FRI.

&&

.FIRE WEATHER...ELEVATED DISPERSIONS EXPECTED AGAIN FRI AND SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  71  93  73  94 /  60  20  20  30
SSI  73  90  76  90 /  60  10  20  20
JAX  73  93  74  94 /  60  20  20  30
SGJ  73  91  75  90 /  40  20  20  30
GNV  71  93  73  94 /  20  20  20  40
OCF  72  93  74  93 /  20  30  20  50

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...NONE.
&&

ENYEDI/WOLF/WALSH

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSONVILLE FL
419 AM EDT THU JUL 2 2015

AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125-
GAZ132>136-149>154-162>166-030830-
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT
20 NM-
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT
20 NM-
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-
WATERS FROM ALTAMAHA SOUND GA TO FERNANDINA BEACH FL FROM 20 TO
60 NM-
WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL FROM 20 TO 60 NM-
WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL FROM 20 TO 60 NM-
HAMILTON-SUWANNEE-COLUMBIA-BAKER-INLAND NASSAU-INLAND DUVAL-UNION-
BRADFORD-CLAY-ST. JOHNS-GILCHRIST-ALACHUA-PUTNAM-FLAGLER-MARION-
COASTAL NASSAU-COASTAL DUVAL-COFFEE-JEFF DAVIS-BACON-APPLING-
WAYNE-ATKINSON-WARE-PIERCE-BRANTLEY-INLAND GLYNN-COASTAL GLYNN-
ECHOLS-CLINCH-CHARLTON-INLAND CAMDEN-COASTAL CAMDEN-
419 AM EDT THU JUL 2 2015

...STRONG TO ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS
AFTERNOON...

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

.DAY ONE...TODAY AND TONIGHT...

SCATTERED THUNDERSTORMS WILL DEVELOP OVER NORTH CENTRAL FLORIDA
DURING THE LATE MORNING HOURS...MOVING NORTHEASTWARD AT 10-15 MPH
TOWARDS COASTAL NORTHEAST FLORIDA AND INCREASING IN COVERAGE AND
INTENSITY DURING THE MID TO LATE AFTERNOON HOURS. MEANWHILE...A
DISTURBANCE ALOFT WILL MOVE ACROSS THE SOUTHEASTERN STATES THIS
AFTERNOON...DEVELOPING NUMEROUS THUNDERSTORMS OVER INLAND
SOUTHEAST GA DURING THE EARLY TO MID AFTERNOON HOURS. ACTIVITY
WILL MOVE EAST-SOUTHEASTWARD AT 15-20 MPH TOWARDS COASTAL
SOUTHEAST GEORGIA DURING THE LATE AFTERNOON HOURS. STRONG TO
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE BY THE MID AFTERNOON
HOURS...WITH DAMAGING WIND GUSTS...FREQUENT LIGHTNING STRIKES AND
HEAVY DOWNPOURS BEING THE MAIN THREATS. ACTIVITY IS EXPECTED TO
MOVE OFFSHORE DURING THE EARLY EVENING HOURS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

ISOLATED TO WIDELY SCATTERED LATE AFTERNOON AND EARLY EVENING
THUNDERSTORMS ARE EXPECTED ON FRIDAY AND SATURDAY. MAINLY
SCATTERED AFTERNOON AND EARLY EVENING THUNDERSTORMS ARE FORECAST
FROM SUNDAY THROUGH WEDNESDAY. STRONGER THUNDERSTORMS WILL BE
CAPABLE OF PRODUCING GUSTY WINDS...FREQUENT LIGHTNING
STRIKES...AND HEAVY DOWNPOURS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUESTED THIS AFTERNOON.

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

NELSON

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
113 PM EDT THU JUL 02 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1255 PM     TSTM WND DMG     2 S GAINESVILLE         29.65N 82.33W
07/02/2015                   ALACHUA            FL   EMERGENCY MNGR

            POWER LINES DOWN AT 108 NE 9TH ST

&&

AWALKER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
150 PM EDT THU JUL 2 2015

FLZ025-032-033-037-038-040-125-021830-
MARION FL-FLAGLER FL-INLAND DUVAL FL-CLAY FL-ST. JOHNS FL-PUTNAM FL-
COASTAL DUVAL FL-
150 PM EDT THU JUL 2 2015

...SIGNIFICANT WEATHER ADVISORY FOR PUTNAM...EASTERN MARION...CLAY...
FLAGLER...ST. JOHNS AND DUVAL COUNTIES UNTIL 230 PM EDT...

AT 150 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR MACCLENNY TO NEAR
ORANGE MILLS TO NEAR EMERALDA...AND MOVING EAST AT 25 MPH.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
JACKSONVILLE...PALM COAST...SAINT AUGUSTINE...PALATKA...ORANGE
PARK...GREEN COVE SPRINGS...FLAGLER BEACH...BUNNELL...CRESCENT
CITY...INTERLACHEN...KEYSTONE HEIGHTS...POMONA PARK...HASTINGS...
LYNNE...EAST PALATKA...MIDDLEBURG...ANDALUSIA...UNF...FORT MCCOY AND
PONTE VEDRA BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 3027 8205 3046 8184 3047 8141 3040 8140
      3038 8148 3039 8142 2976 8125 2983 8132
      2975 8125 2943 8110 2941 8115 2927 8115
      2926 8141 2940 8142 2933 8168 2928 8164
      2896 8166 2896 8205
TIME...MOT...LOC 1750Z 259DEG 20KT 3031 8212 2966 8155 2898 8179

ENYEDI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
235 PM EDT THU JUL 2 2015

FLZ038-021915-
FLAGLER FL-
235 PM EDT THU JUL 2 2015

...SIGNIFICANT WEATHER ADVISORY FOR FLAGLER COUNTY UNTIL 315 PM
EDT...

AT 235 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR MARINELAND TO 8 MILES
SOUTHEAST OF CRESCENT CITY...AND MOVING EAST AT 25 MPH.

GUSTY WINDS OF 40 TO 50 MPH CAN BE EXPECTED ALONG WITH POSSIBLE
MINOR WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
PALM COAST...FLAGLER BEACH...BUNNELL...MARINELAND...BEVERLY BEACH AND
ESPANOLA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 2941 8115 2927 8115 2926 8141 2940 8142
      2940 8144 2939 8145 2964 8131 2965 8128
      2967 8126 2965 8122 2966 8122 2967 8121
      2943 8110
TIME...MOT...LOC 1835Z 268DEG 24KT 2963 8124 2936 8139

WOLF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
255 PM EDT THU JUL 02 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0235 PM     TSTM WND GST     MARINELAND              29.66N 81.21W
07/02/2015  M40 MPH          FLAGLER            FL   EMERGENCY MNGR

            40 MPH WIND GUST MEASURED IN MARINELAND.

&&

WALSH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
258 PM EDT THU JUL 02 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0250 PM     LIGHTNING        5 SSE MARINELAND        29.60N 81.18W
07/02/2015                   FLAGLER            FL   EMERGENCY MNGR

            LIGHTNING STRUCK A SEVEN STORY RESORT BUILDING.

&&

WALSH

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
321 PM EDT THU JUL 2 2015

FLZ021-021945-
SUWANNEE FL-
321 PM EDT THU JUL 2 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SUWANNEE COUNTY UNTIL 345
PM EDT...

AT 320 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
MAYO...MOVING EAST AT 40 MPH.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR
WIND DAMAGE.

LOCATIONS IMPACTED INCLUDE...
MCALPIN...OBRIEN AND LURAVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.

LAT...LON 3026 8294 3012 8280 3000 8295 3004 8302
      3006 8304 3006 8306 3008 8307 3009 8311
      3011 8312 3010 8314 3011 8315 3012 8318
TIME...MOT...LOC 1920Z 254DEG 35KT 3006 8307

ZIBURA