A weak upper ridge extended across south central Florida. A weak upper trough extended from north Georgia into the extreme northeast Gulf of Mexico.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS JAX wrote it up.
A weak upper ridge extended across south central Florida. A weak upper trough extended from north Georgia into the extreme northeast Gulf of Mexico. A quasi-stationary front was near the Florida/Georgia stateline. Forcing from afternoon sea breezes and the front yielded a few strong storms which produced heavy rainfall.
The local office's own words before the first event, 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 the first event at May 14, 1:40 PM EST, 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 240 PM EDT THU MAY 14 2009 .SHORT TERM...RADAR AND LIGHTNING DATA INDICATE CONVECTION IS CURRENTLY IMPACTING NORTHEAST FLORIDA...ESPECIALLY ALONG THE ST. JOHNS RIVER. GIVEN LIGHT STEERING FLOW...ACTIVITY WILL SLOWLY FOCUS FARTHER INLAND AS THE DAY PROGRESSES...AS BOTH THE GULF COAST AND ATLANTIC SEA BREEZES PROPAGATE INLAND. GIVEN TROPICAL ENVIRONMENT AND MEAGER DYNAMICAL FORCING...ACTIVITY WILL LIKELY QUICKLY DISSIPATE DURING THE EVENING HOURS. SUMMER-TIME PATTERN HAS RETURNED WITH DIURNAL THUNDERSTORMS EXPECTED EACH DAY. STEERING FLOW WILL REMAIN WEAK...WITH SHOWERS AND THUNDERSTORMS INITIATING OVER THE COASTAL ZONES DURING THE MORNING...FOCUSING ACROSS THE INTERIOR EACH DAY. GIVEN WEAK STORM MOTION COUPLED WITH TROPICAL ENVIRONMENT...MAIN CONCERNS THROUGH THE SHORT-TERM WILL BE LOCALLY HEAVY RAINFALL AND EXCESSIVE LIGHTNING POTENTIAL. HAVE BASICALLY INCLUDED HOMOGENEOUS CHANCE POPS FOR EACH DAY. UPPER TROUGH IS FORECAST TO DIG OVER THE EASTERN UNITED STATES ON SUNDAY. THIS WILL ENABLE A SURFACE COLD FRONT TO APPROACH LATE IN THE DAY. THIS FRONTAL BOUNDARY IS THEN FORECAST TO INTERACT WITH APPROACHING LOW PRESSURE SYSTEM FROM THE SOUTH NEXT WEEK...BECOMING MAJOR WEATHER PLAYERS. .LONG TERM...BOTH THE MEDIUM RANGE GFS AND DGEX CONTINUE TO SHOW AREA OF LOW PRESSURE FORMING BETWEEN CUBA AND FLORIDA EARLY NEXT WEEK...ALTHOUGH SOLNS DIVERGE WITH ULTIMATE TRACK OF THIS FEATURE. THE GFS SOLN BRINGS THIS FEATURE NORTHWARD OVER THE FLORIDA ATLANTIC WATERS...WHEREAS THE DGEX SOLN INDICATES THIS FEATURE WILL RESIDE OVER THE GULF COAST REGION. EACH SCENARIO WOULD OBVIOUSLY BRING DIFFERENT WEATHER CONDITIONS FOR OUR LOCAL AREA. WILL TREND TOWARDS THE GFS SOLN...BUT WILL NOT BE QUITE AS BULLISH WITH THIS FEATURE GIVEN FORECAST IS SEVERAL DAYS REMOVED COUPLED WITH TIME OF YEAR. && .AVIATION...HAVE TEMPO FOR TSRA IN TAFS THRU 22Z WITH VCTS UNTIL SHORTLY AFTER 00Z. DID NOT HIT FOG HARD FOR LATE TNGT...THOUGH NEXT SHIFT WILL NEED TO REEVALUATE GIVEN INFLUX OF LLVL MOISTURE ON ESE SFC FLOW. FOR NOW WENT WITH MIFG WITH PATCHY FOG AT KGNV... THOUGH THERE MAY BE PATCHY DENSE FOG ACRS NE FL...WITH PARTIAL CLEARING OF SKIES AND LIGHT WINDS LATER TNGT. && .MARINE...NO SIG CHANGES MADE IN SHORT TERM OF MARINE FORECAST. LONGER TERM...MODELS SUGGESTING NOREASTER SETUP WITH STRONG HIGH WELL NORTH AND SFC LOW DEVELOPING S OF AREA. WAVE GUIDANCE NOW SUGGESTS UP TO 15FT SEAS IN OFFSHORE WATERS BY TUE. FOR NOW...HAVE TRENDED WINDS AND SEAS A LITTLE TOWARD THIS SOLUTION...BUT HAVE HELD WINDS TO 25KTS AND SEAS TO 8-10 FT IN THIS PACKAGE...SUGGESTIVE OF A WEAKER SOLUTION THAN GFS (OR A MORE WESTWARD TRACK OF SFC LOW PER DGEX). IF SUBSEQUENT GFS RUNS ARE CONSISTENT...WILL LIKELY NEED TO INCREASE WINDS/SEAS IN SUBSEQUENT FORECASTS FOR MON-WED PERIOD. && .PRELIMINARY POINT TEMPS/POPS... AMG 65 85 65 87 / 30 50 30 50 SSI 69 82 69 82 / 20 20 10 30 JAX 68 85 66 86 / 20 50 10 30 SGJ 70 82 69 83 / 20 20 10 30 GNV 66 87 65 88 / 30 50 30 40 OCF 67 88 66 88 / 30 50 30 40 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && ZAPPE/WOLF/
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 945 AM EDT THU MAY 14 2009 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-151000- ALACHUA-APPLING-ATKINSON-BACON-BAKER-BRADFORD-BRANTLEY- CAMDEN (COASTAL)-CAMDEN (INLAND)-CHARLTON-CLAY-CLINCH-COFFEE- COLUMBIA-DUVAL-ECHOLS-FLAGLER-GILCHRIST-GLYNN (COASTAL)- GLYNN (INLAND)-HAMILTON-JEFF DAVIS-MARION-NASSAU-PIERCE-PUTNAM- ST JOHNS-SUWANNEE-UNION-WARE-WAYNE- 945 AM EDT THU MAY 14 2009 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS THE AREA TODAY. A FEW STORMS IN NORTHEAST FLORIDA MAY BECOME STRONG WITH GUSTY WINDS. DUE TO SLOW STORM MOTION...LOCALLY HEAVY RAINFALL IS POSSIBLE WITH ANY THUNDERSTORM DEVELOPMENT. EASTERLY SWELLS WILL CONTINUE TO BRING AN ELEVATED RISK OF RIP CURRENTS TO AREA BEACHES TODAY. SEE THE LATEST SURF ZONE FORECAST FOR MORE INFORMATION. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... A MOIST UNSTABLE AIRMASS WILL REMAIN OVER THE AREA WITH SCATTERED THUNDERSTORMS FRIDAY THROUGH MONDAY MAINLY DURING THE AFTERNOON AND EVENING HOURS. A COLD FRONT WILL APPROACH THE AREA ON SUNDAY AND MONDAY WITH POTENTIALLY STRONG THUNDERSTORMS AND LOCALLY HEAVY RAINFALL. .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. ECZ
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 150 PM EDT THU MAY 14 2009 FLZ040-141830- MARION- 150 PM EDT THU MAY 14 2009 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR CENTRAL MARION COUNTY FOR EXCESSIVE LIGHTNING VALID UNTIL 230 PM EDT... AT 150 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED OVER LYNNE...WITH LITTLE MOVEMENT. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND LYNNE THROUGH 230 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. POSTPONE OUTDOOR ACTIVITIES PROMPTLY. GO QUICKLY INSIDE A COMPLETELY ENCLOSED BUILDING. UNPLUG ELECTRONIC DEVICES AND APPLIANCES AS THEY ARE SUSCEPTIBLE TO POWER SURGES AND MAY BE DAMAGED BY NEARBY LIGHTNING STRIKES. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. LAT...LON 2929 8198 2927 8177 2910 8183 2913 8203 TIME...MOT...LOC 1750Z 146DEG 2KT 2920 8192 ZAPPE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 214 PM EDT THU MAY 14 2009 FLZ033-141900- ST. JOHNS- 214 PM EDT THU MAY 14 2009 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHWESTERN ST. JOHNS COUNTY FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 300 PM EDT... AT 214 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 3 MILES SOUTHEAST OF SWITZERLAND...OR 3 MILES SOUTH OF FRUIT COVE...WITH LITTLE MOVEMENT. THIS STRONG THUNDERSTORM WILL ALSO AFFECT AREAS AROUND SWITZERLAND AND FRUIT COVE THROUGH 300 PM EDT. EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS TO 45 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS. REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. LAT...LON 3012 8166 3011 8155 3000 8157 3002 8167 TIME...MOT...LOC 1814Z 199DEG 4KT 3006 8161 ZAPPE
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
232 PM EDT THU MAY 14 2009
FLZ040-141915-
MARION-
232 PM EDT THU MAY 14 2009
...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR SOUTHEASTERN
MARION COUNTY FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL
315 PM EDT...
AT 232 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED OVER LAKE COUNTY...OR 7 MILES WEST OF
PAISLEY...WITH LITTLE MOVEMENT. THIS STRONG THUNDERSTORM WILL ALSO
AFFECT AREAS AROUND THROUGH 315 PM EDT. EXCESSIVE CLOUD-TO-GROUND
LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH
POSSIBLE MINOR DAMAGE. HEAVY RAINFALL WILL PRODUCE PONDING OF WATER
ON ROADWAYS AND MINOR FLOODING OF LOW-LYING AREAS.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 2908 8174 2907 8163 2905 8163 2904 8165
2896 8165 2895 8166 2895 8176
TIME...MOT...LOC 1832Z 278DEG 1KT 2900 8165
ZAPPESPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
310 PM EDT THU MAY 14 2009
FLZ025-142000-
DUVAL-
310 PM EDT THU MAY 14 2009
...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR NORTHERN DUVAL
COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID
UNTIL 400 PM EDT...
AT 311 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED OVER JACKSONVILLE INTERNATIONAL AIRPORT...
MOVING SOUTHWEST AT 5 MPH. THESE STRONG THUNDERSTORMS WILL ALSO
AFFECT AREAS AROUND OCEANWAY AND JACKSONVILLE INTERNATIONAL AIRPORT
THROUGH 400 PM EDT. HAIL UP TO ONE HALF INCH IN DIAMETER...EXCESSIVE
CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE
EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. HEAVY RAINFALL WILL
PRODUCE PONDING OF WATER ON ROADWAYS AND MINOR FLOODING OF LOW-LYING
AREAS.
REPORT DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY
EMERGENCY MANAGEMENT.
LAT...LON 3038 8172 3047 8182 3050 8179 3050 8178
3052 8177 3057 8171 3050 8157
TIME...MOT...LOC 1911Z 043DEG 5KT 3048 8170
SHULERThe Jacksonville radar (KJAX), 86 km away, was scanning. The volume nearest the first event began at 19:15 UTC.
1 hail, 1 funnel cloud, 1 thunderstorm wind. Local standard time, as filed.
A thunderstorm produced quarter size hail along Tanner Road, south of State Road 100. Trees were also blown down in the area.
A funnel cloud was reported near Commonwealth Avenue on the Jacksonville Westside.
The Gainesville Regional Airport ASOS measured a 60 mph wind gust from a wet microburst.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2009Every state in 2009This day in weather historyWarnings in Florida, May 2009
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 170522, 170524, 170525.