The sea breezes collided over a moist and unstable air mass during the afternoon west of Highway 301. The atmosphere was further destablized by a passing mid level short wave trough and associated positive vorticity advection.
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 collided over a moist and unstable air mass during the afternoon west of Highway 301. The atmosphere was further destablized by a passing mid level short wave trough and associated positive vorticity advection.
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 Jun 18, 12:38 PM EST, 4 hours 47 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 138 PM EDT FRI JUN 18 2010 .SHORT TERM...LATEST MSAS ANALYSIS SHOWS TROUGH AXIS CONTINUES OVER THE COASTAL CAROLINAS AND INTO PORTIONS OF SOUTHEAST GEORGIA AND THE SUWANNEE VALLEY OF FLORIDA. DRIER AIR AT THE SURFACE HAS BEEN ABLE TO FILTER IN ON THE NORTHERN SIDE OF THIS FEATURE WITH MID TO UPPER 60S DEWPOINTS JUST WEST OF THE AREA WITH AROUND 70 THROUGH OUR WESTERN TIER GA COUNTIES. ALONG THE TROUGH AXIS HOWEVER...ATMOSPHERE REMAINS VERY MOIST IN THE BOUNDARY LAYER WITH DEWPOINTS IN THE MID 70S FROM THE SUWANNEE VALLEY THROUGH THE GOLDEN ISLES OF GEORGIA. THIS AREA HAS BEGUN TO FIRE EARLY THIS AFTERNOON AND SHOULD BE THE FOCUS FOR THE REMAINDER OF THIS EVENING. ADDITIONALLY...ACTIVITY WILL CONTINUE TO BE ENHANCED ALONG THE WEST COAST SEABREEZE...BUT A NORTH TO NORTHEAST STEERING FLOW SHOULD KEEP A MAJORITY OF THIS ACTIVITY CONFINED TO THE SOUTHERN TIER FOR THIS AFTERNOON. MAIN MID LEVEL FEATURE CONTINUES TO BE VORT CENTER OFF THE CAROLINA COAST. FLOW ON THE BACK SIDE OF THIS FEATURE IS ALSO DRAWING IN MID LEVEL DRY AIR TO THE NORTHERN ZONES. QUESTION WITH THESE SCENARIOS IS WILL THIS DRY AIR LIMIT OVERALL COVERAGE OF STORMS OR INTENSIFY THE ONES ALREADY THERE OR BOTH. FROM A PEEK AT THIS MORNING SOUNDINGS AND MODEL CROSS SECTIONS...FEEL POPS WILL CERTAINLY TAKE A HIT TODAY OVER THE THE INLAND GA ZONES BUT THIS WILL ONLY DROP THEM FORM THEIR 60 TO 70 PERCENT COVERAGE IN PREVIOUS DAYS TO 40 PERCENT TODAY. OTHERWISE...EXPECT EARLY START TO CONVECTION TO LIMIT INTENSITY LATER THIS AFTERNOON AS ORGANIZATION TO STORMS WILL BE AN ISSUE. FEEL BEST CHANCE OF STRONG TO SEVERE WILL BE BETWEEN THE I75 AND I95 CORRIDORS LATER THIS AFTERNOON AS NORTHERLY STEERING FLOW SENDS STORMS ALONG THE EAST COAST SEABREEZE. SAT/SUN...NOT MUCH CHANGE IN PATTERN. WEAK PRESSURE PATTERN CONTINUES WITH AREA SANDWICHED BETWEEN LARGE UPPER RIDGE TO THE WEST AND WEAK UPPER LOW OFF THE COAST. THIS OPENS THE DOOR FOR SPOKES OF ENERGY TO RIDE SOUTH ACROSS THE AREA WHICH WILL ENHANCE THUNDERSTORM ACTIVITY THAT WILL DEVELOP ALONG THE SEA BREEZES AND MOVE INLAND. HAVE CONTINUED HIGHEST POPS (60%) FOR INLAND NE FL FOR SAT AND 50% FOR SAME AREAS ON SUNDAY. STRONGER STORMS WILL BE CAPABLE OF FREQUENT CLOUD TO GROUND LIGHTNING...STRONG GUSTY WINDS...AND LOCALLY HEAVY RAIN. MONDAY...SURFACE RIDGE AXIS FINALLY BUILDS BACK NORTH OF THE AREA WITH A MORE TYPICAL EASTERLY FLOW REGIME IN THE BOUNDARY LAYER IN STORE. THIS WILL FAVOR NEAR CLIMO POPS WITH BEST COVERAGE FOR WELL INLAND ZONES LATE IN THE AFTERNOON. .LONG TERM...HIGH PRESSURE RIDGE AT THE SURFACE AND ALOFT WILL CONTINUE NORTH OF THE REGION AND THIS WILL ALLOW ONSHORE FLOW TO CONTINUE THROUGH THE LONG TERM PERIOD. SOME HINTS THAT DRIER AIR WILL WORK IN AS A WAVE AFFECTS MAINLY SOUTHERN FLORIDA WITH LIMITED POPS BY MID WEEK. MAX TEMPS WILL ALSO REMAIN NEAR CLIMO VALUES WITH LOWER TO MID 90S INLAND AND UPPER 80S ALONG THE COAST. && .AVIATION...WITH EARLY START TO STORMS AND MOST EXPECTED TO BE FARTHER INLAND...EXPECT BEST CHANCE AT GNV...BUT HAVE KEPT VCTS ATTM. TOWERING CU EXPECTED NEAR ALL TERMINALS. ANTICIPATE A BRIEF PERIOD OF MVFR AT VQQ AND POSSIBLY GNV TOWARD SUNRISE BUT WILL NOT INCLUDE IN TAFS. && .MARINE...WINDS WILL BE SE TO SOUTH AROUND 10 KT THROUGH THE WEEKEND. AS THE RIDGE SHIFTS N OF THE AREA MONDAY...WINDS WILL BECOME EASTERLY THROUGH WEDNESDAY AND INCREASE TO 15 KT. && .PRELIMINARY POINT TEMPS/POPS... AMG 71 95 71 94 / 20 40 20 40 SSI 76 89 76 90 / 20 40 20 30 JAX 74 92 72 92 / 20 50 30 40 SGJ 74 89 75 88 / 20 50 30 40 GNV 72 93 71 91 / 40 60 30 50 OCF 72 93 73 91 / 30 60 40 50 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...NONE. GA...NONE. AM...NONE. && DEESE/TRABERT/PRESNALL
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSONVILLE FL 436 AM EDT FRI JUN 18 2010 FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-191000- 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- 436 AM EDT FRI JUN 18 2010 THIS OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...TODAY AND TONIGHT... ...HOT CONDITIONS TO CONTINUE ALONG WITH SCATTERED STRONG AND ISOLATED SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING... HIGH TEMPERATURES IN THE LOWER TO MID 90S WILL PUSH HEAT INDICES TO 100 TO 105 DEGREES THIS AFTERNOON. EXERCISE EXTREME CAUTION WHEN OUTDOORS. SCATTERED TO NUMEROUS STORMS ARE EXPECTED TO DEVELOP TODAY MAINLY DURING THE AFTERNOON AND EVENING AS THE SEA BREEZES BEGIN TO DEVELOP AND PROGRESS INLAND. SOME STORMS WILL BE STRONG AND PRODUCE FREQUENT CLOUD TO GROUND LIGHTNING...STRONG AND GUSTY WINDS AND LOCALLY HEAVY RAINFALL. ISOLATED SEVERE THUNDERSTORMS WITH DAMAGING WINDS WILL ALSO BE POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED EACH AFTERNOON AND EVENING THROUGH THE WEEKEND. THE SLOW STORM MOTION WILL CONTINUE THE POTENTIAL FOR HEAVY RAINFALL AND MINOR FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO SELF-ACTIVATE IF WARNINGS ARE ISSUED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WEATHER.GOV/JAX. PP
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
501 PM EDT FRI JUN 18 2010
GAZ152-153-165-182145-
BRANTLEY-INLAND CAMDEN-INLAND GLYNN-
501 PM EDT FRI JUN 18 2010
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR EASTERN
BRANTLEY...NORTHWESTERN CAMDEN AND WESTERN GLYNN COUNTIES FOR STRONG
WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 545 PM EDT...
AT 501 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 4 MILES SOUTH OF WAYNESVILLE...OR 10 MILES
EAST OF NAHUNTA...MOVING SOUTH AT 15 MPH. THESE STRONG THUNDERSTORMS
WILL ALSO AFFECT AREAS AROUND WAYNESVILLE...THALMANN...ATKINSON...
WAVERLY AND TARBORO THROUGH 545 PM EDT. HAIL UP TO THREE QUARTER 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 3097 8166 3099 8191 3103 8190 3105 8193
3106 8200 3107 8203 3132 8189 3131 8160
TIME...MOT...LOC 2101Z 006DEG 11KT 3117 8181
SHULERPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
528 PM EDT FRI JUN 18 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0425 PM TSTM WND DMG 2 E LAKE CITY 30.19N 82.61W
06/18/2010 COLUMBIA FL EMERGENCY MNGR
EMERGENCY MANAGEMENT REPORTED TWO TREES FELL ON TWO
SEPARATE HOME NEAR THE INTERSECTION OF NORTH CRAIG STREET
AND THE JACKSONVILLE LOOP.
&&
DEESESPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSONVILLE FL 532 PM EDT FRI JUN 18 2010 GAZ162-163-182215- CLINCH-ECHOLS- 532 PM EDT FRI JUN 18 2010 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHEASTERN CLINCH AND SOUTHEASTERN ECHOLS COUNTIES FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID UNTIL 615 PM EDT... AT 533 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS CENTERED 4 MILES SOUTH OF NEEDMORE...OR 7 MILES SOUTHWEST OF FARGO...MOVING SOUTHWEST AT 5 MPH. THESE STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND NEEDMORE AND FARGO THROUGH 615 PM EDT. HAIL UP TO THREE QUARTER 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 3058 8243 3060 8284 3080 8276 3076 8244 TIME...MOT...LOC 2133Z 026DEG 5KT 3062 8266 SHULER
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
537 PM EDT FRI JUN 18 2010
GAZ164>166-182215-
CHARLTON-COASTAL CAMDEN-INLAND CAMDEN-
537 PM EDT FRI JUN 18 2010
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHEASTERN
CHARLTON AND CENTRAL CAMDEN COUNTIES FOR STRONG WINDS...SMALL HAIL
AND EXCESSIVE LIGHTNING VALID UNTIL 615 PM EDT...
AT 537 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS CENTERED 5 MILES SOUTHWEST OF TARBORO...OR 10 MILES
WEST OF WOODBINE...MOVING SOUTHEAST AT 10 MPH. THESE STRONG
THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND WINOKUR...TARBORO...
HOMELAND...FOLKSTON...WOODBINE AND COLESBURG THROUGH 615 PM EDT. HAIL
UP TO THREE QUARTER 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 3080 8163 3080 8188 3082 8190 3081 8190
3081 8192 3082 8194 3080 8197 3080 8205
3106 8202 3104 8165
TIME...MOT...LOC 2137Z 331DEG 10KT 3097 8188
SHULERSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
554 PM EDT FRI JUN 18 2010
FLZ020-182245-
HAMILTON-
554 PM EDT FRI JUN 18 2010
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR NORTHEASTERN
HAMILTON COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING
VALID UNTIL 645 PM EDT...
AT 554 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 13 MILES NORTHEAST OF JASPER...MOVING
SOUTHWEST AT 10 MPH. THIS STRONG THUNDERSTORM WILL AFFECT MAINLY
RURAL AREAS THROUGH 645 PM EDT. HAIL UP TO THREE QUARTER 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 3058 8291 3061 8289 3059 8270 3058 8270
3056 8272 3054 8272 3053 8272
TIME...MOT...LOC 2154Z 035DEG 7KT 3059 8278
ZAPPESPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
602 PM EDT FRI JUN 18 2010
GAZ150-182245-
WARE-
602 PM EDT FRI JUN 18 2010
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR SOUTHERN WARE
COUNTY FOR STRONG WINDS...SMALL HAIL AND EXCESSIVE LIGHTNING VALID
UNTIL 645 PM EDT...
AT 602 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED 5 MILES SOUTH OF STEVEN FOSTER STATE
PARK...MOVING SOUTH AT 5 MPH. THIS STRONG THUNDERSTORM WILL AFFECT
MAINLY RURAL AREAS THROUGH 645 PM EDT. HAIL UP TO THREE QUARTER 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 3079 8242 3079 8226 3068 8227 3070 8243
3071 8243 3073 8241 3073 8243
TIME...MOT...LOC 2202Z 019DEG 3KT 3075 8235
ZAPPEThe Jacksonville radar (KJAX), 47 km away, was scanning. The volume nearest the first event began at 22:25 UTC.
1 thunderstorm wind. Local standard time, as filed.
Trees were blown down along Hamp Chesser Road in Folkston.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2010Every state in 2010This day in weather historyWarnings in Georgia, June 2010
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: 227776.