The sea breezes initiated isolated severe storms across our forecast area during the late afternoon and early evening.
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.
The sea breezes initiated isolated severe storms across our forecast area during the late afternoon and early evening.
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 Aug 12, 1:33 PM EST, 2 hours 47 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 233 PM EDT SUN AUG 12 2007 .SHORT TERM...A PERSISTENT SURFACE TROUGH HAS SHIFTED SLIGHTLY WESTWARD ROUGHLY STRETCHING FROM NEAR MOBILE TO MACON. STORMS THAT ERUPTED SOUTH OF THE TROUGH HAVE ALL BEEN WEST OF THE AREA WHERE CAPE VALUES EXCEED 5000 J/KG PER LAPS ANALYSIS. INSTABILITY IS WEAK TODAY IN OUR FCST AREA SINCE DEWPOINTS HAVE DECREASED INTO MID 70S. A FEW SPOTS WITH HIGHER DWPTS IN THE FAR SOUTH AND ALSO NW TIER WILL BE MOST LIKELY AREA FOR ISOLD STORMS. HOWEVER VIS SATELLITE SHOWS STABLE AIR NEAR NE FL COAST WHERE MEAN LAYER RIDGE HAS PUSHED IN FROM THE ATLANTIC AND ALMOST NO CU HAVE DEVELOPED. A MEAN LAYER TROUGH (TUTT) BLANKETS SRN HALF OF FL FOLLOWING AN EASTERLY WAVE AS IT PUSHED WWD INTO THE GULF. HIGH PRESSURE ALOFT THAT HAS BEEN RESPONSIBLE FOR HEAT WAVE IN THE SRN PLAINS WILL SHIFT EWD EARLY THIS WEEK AND TEMPS WILL REBOUND QUICKLY INTO THE MID/UPPER 90S MON-WED. HEAT INDICES ARE EXPECTED AROUND 105 DEG AND POSSIBLY HIGHER IN SE GA...BUT CURRENTLY EXPECTED TO JUST BELOW CRITERIA FOR ADVISORY. DRIER AIR PUSHING INTO THE REGION WILL LIMIT RAIN CHANCES FROM PRACTICALLY NIL NORTH PORTION TO 30% SOUTH PORTION MONDAY AND ONLY 20% TUESDAY. .LONG TERM...(WED-SUN)...HIGH PRESSURE IS EXPECTED TO DOMINATE THRU END OF THE WEEK BUT A FEW IMPULSES RIDING AROUND ERN PERIPHERY OF THE RIDGE SHOULD INCREASE RAIN CHANCES BY FRI-SAT. A TUTT IS ANTICIPATED TO APPROACH THE REGION LATER IN THE WEEKEND AND COULD PROVE TO BE A RAIN MAKER FOR OUR SRN TIER. && .AVIATION...KEPT TSRA OUT OF SSI/JAX/CRG TAFS ATTM GIVEN EXPECTATION OF BETTER CHANCES OVER WRN HALF OF FL/GA...AS HINTED BY LACK OF MUCH CU ON SATLT OVER NE FL/SE GA. WILL MONITOR AND UPDATE TAFS IF TSRA CHANCES INCREASE. KEPT VCTS IN GNV TAF FOR AFTN. OTHERWISE...VFR CONDITIONS EXPECTED...MENT TEMPO 4SM BR AFTER 09Z IN GNV TAF. && .MARINE...NO HEADLINES EXPECTED WITH CONTINUED 10-15KT WINDS AND 2-3 FT SEAS THRU THE FCST PERIOD. && .PRELIMINARY POINT TEMPS/POPS... AMG 72 98 74 98 / 20 10 10 20 SSI 78 91 78 93 / 20 10 10 20 JAX 75 94 75 96 / 20 10 10 20 SGJ 77 91 76 93 / 20 20 10 20 GNV 73 95 73 95 / 30 30 20 20 OCF 73 94 72 96 / 40 30 20 20 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && TRABERT/WOLF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 545 AM EDT SUN AUG 12 2007 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-131000- 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- 545 AM EDT SUN AUG 12 2007 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT... ...HEAT INDICES AROUND 105 TODAY... ...ISOLATED STRONG THUNDERSTORMS POSSIBLE THIS AFTERNOON... HIGH TEMPERATURES THIS AFTERNOON ARE FORECAST TO BE IN THE MID 90S AND WITH THE HUMIDITY COMBINED WILL RESULT IN HEAT INDICES OF AROUND 105 DEGREES THIS AFTERNOON. EFFECTS OF THE HEAT CAN BE MINIMIZED BY REDUCING OUTDOOR ACTIVITIES...DRINKING PLENTY OF WATER OR FLUID REPLENISHING BEVERAGES...AND WEARING LIGHTWEIGHT LIGHT-COLORED CLOTHING. ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON. ISOLATED STRONG STORMS WILL BE POSSIBLE WITH STRONG WIND GUSTS AND CLOUD TO GROUND LIGHTNING THE MAIN THREATS. DUE TO SLOW STORM MOTION...LOCALIZED HEAVY RAINFALL IS LIKELY. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED EACH DAY MAINLY DURING THE AFTERNOON AND EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO SELF-ACTIVATE WHEN A WARNING IS ISSUED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. PP
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
321 PM EDT SUN AUG 12 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0530 PM TSTM WND DMG 5 W GRAHAM 31.83N 82.59W
08/11/2007 JEFF DAVIS GA LAW ENFORCEMENT
2 TREES DOWN ON OLD GRAHAM RD.
0830 PM TSTM WND DMG 5 S ARGYLE 31.00N 82.65W
08/11/2007 CLINCH GA LAW ENFORCEMENT
2 TREES REPORTED DOWN IN THE ARGYLE AREA.
&&
DEESESPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 425 PM EDT SUN AUG 12 2007 GAZ134-135-122130- APPLING-BACON- 425 PM EDT SUN AUG 12 2007 ...A SIGNIFICANT WEATHER ALERT HAS BEEN ISSUED FOR SOUTHERN APPLING AND NORTHERN BACON COUNTIES FOR STRONG WINDS AND EXCESSIVE LIGHTNING VALID UNTIL 530 PM EDT... AT 425 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CENTERED 9 MILES NORTHEAST OF NEW LACY...OR 8 MILES SOUTHWEST OF SURRENCY...MOVING SOUTHWEST AT 5 MPH. EXCESSIVE CLOUD-TO-GROUND LIGHTNING WILL BE THE MAIN THREAT BUT GUSTY WINDS OF 45 TO 55 MPH CAN ALSO 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. DEESE
The national radar mosaic for the moment the first event began.
2 thunderstorm wind. Local standard time, as filed.
A roof was blown off of a residential home on Wester Road. Trees and power lines were down as well. The time of the event was estimated using Doppler radar.
Trees were blown down in the Rainbow Springs Golf Course.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Florida in 2007Every state in 2007This day in weather historyWarnings in Florida, August 2007
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: 46778, 46779.