A diffuse surface front settled south across SE Georgia with a weak meso low pressure system along the boundary. Very high moisture content fueled widespread rainfall and wet downburst potential due to heavy rainfall loading.
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 diffuse surface front settled south across SE Georgia with a weak meso low pressure system along the boundary. Very high moisture content fueled widespread rainfall and wet downburst potential due to heavy rainfall loading.
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 Jul 13, 7:48 PM EST, 3 hours 12 minutes earlier.
Area Forecast Discussion National Weather Service Jacksonville FL 848 PM EDT Fri Jul 13 2018 .UPDATE...Scattered showers and isolated t-storms continue with converging boundaries early this evening...likely to continue a few more hours before diminishing as suggested by HRRR and hi-res NAM. Current low temperature forecast looks fine. && .AVIATION...VFR conditions expected next 24 hours. Included VCTS tomorrow at TAF sites tomorrow afternoon. && .MARINE...No significant changes planned in next CWF issuance. A back door front will wash out across the waters this weekend producing scattered showers and storms. Light and variable winds becoming onshore in the afternoon. A western Atlantic ridge will build south of the waters next week producing an increase in south southwest winds...however winds and seas expected to remain just under cautionary levels. Rip Currents: A lingering long period swell has prompted a high risk along the Ne Fl beaches through early this evening. Otherwise a moderate risk expected through Saturday. Coastal Flooding: Perigee spring tides (closest new moon of the calendar year) will continue through the weekend, resulting in elevated high tide cycles. Forecast water levels suggest tides will remain near or just under action stage and no coastal flood statements expected at this time. && .PRELIMINARY POINT TEMPS/POPS... AMG 76 91 73 90 / 30 70 40 50 SSI 79 88 77 88 / 30 50 40 50 JAX 75 92 74 91 / 10 50 40 50 SGJ 76 90 74 88 / 10 40 40 50 GNV 74 92 74 91 / 30 50 40 60 OCF 74 93 73 90 / 20 40 20 60 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AM...None. && Wolf/Hess/Corless
Special Weather Statement
National Weather Service Jacksonville FL
632 PM EDT FRI JUL 13 2018
GAZ153-154-132300-
Inland Glynn GA-Coastal Glynn GA-
632 PM EDT FRI JUL 13 2018
...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL GLYNN COUNTY UNTIL
700 PM EDT...
At 632 PM EDT, Doppler radar was tracking a strong thunderstorm near
Dock Junction, moving west at 5 mph.
Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph
can be expected along with possible minor damage.
Locations impacted include...
Brunswick, Dock Junction, Thalmann and Country Club Estates.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3113 8147 3111 8156 3113 8156 3113 8157
3112 8158 3112 8160 3111 8161 3112 8162
3111 8163 3113 8166 3112 8168 3113 8170
3133 8173 3134 8172 3131 8148
TIME...MOT...LOC 2232Z 085DEG 5KT 3122 8157
HESSSpecial Weather Statement National Weather Service Jacksonville FL 633 PM EDT FRI JUL 13 2018 FLZ033-037-038-133-132300- Coastal St. Johns FL-Putnam FL-Inland Flagler FL-Inland St. Johns FL- 633 PM EDT FRI JUL 13 2018 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN FLAGLER... SOUTHEASTERN ST. JOHNS AND NORTHEASTERN PUTNAM COUNTIES UNTIL 700 PM EDT... At 633 PM EDT, Doppler radar was tracking a strong thunderstorm over Hastings, moving east at 10 mph. Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph can be expected along with possible minor damage. Locations impacted include... Hastings, Federal Point, Saint Augustine Shores, Spuds, Dupont Center and Elkton. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 2959 8155 2977 8158 2984 8132 2957 8129 TIME...MOT...LOC 2233Z 263DEG 7KT 2969 8149 HESS
Special Weather Statement
National Weather Service Jacksonville FL
753 PM EDT FRI JUL 13 2018
FLZ023-140030-
Baker FL-
753 PM EDT FRI JUL 13 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN BAKER COUNTY UNTIL
830 PM EDT...
At 752 PM EDT, Doppler radar was tracking a strong thunderstorm near
Macclenny, or 13 miles northeast of Raiford. This storm was nearly
stationary.
Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph
can be expected along with possible minor damage.
Locations impacted include...
Macclenny, Glen St. Mary and Sanderson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3014 8212 3014 8219 3026 8234 3036 8217
3036 8216 3037 8214 3036 8213 3037 8213
3037 8210 3036 8209 3036 8205 3019 8205
TIME...MOT...LOC 2352Z 145DEG 4KT 3023 8213
HESSSpecial Weather Statement National Weather Service Jacksonville FL 928 PM EDT FRI JUL 13 2018 GAZ136-152-140200- Brantley GA-Wayne GA- 928 PM EDT FRI JUL 13 2018 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL BRANTLEY AND SOUTHEASTERN WAYNE COUNTIES UNTIL 1000 PM EDT... At 928 PM EDT, Doppler radar was tracking a strong thunderstorm 8 miles southeast of Screven, or 9 miles southwest of Gardi, moving north at 10 mph. Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph can be expected along with possible minor damage. Locations impacted include... Jesup, Gardi, Screven, Broadhurst and Hortense. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3149 8164 3126 8190 3138 8204 3162 8197 TIME...MOT...LOC 0128Z 201DEG 8KT 3143 8189 HESS
Special Weather Statement
National Weather Service Jacksonville FL
956 PM EDT FRI JUL 13 2018
GAZ136-140230-
Wayne GA-
956 PM EDT FRI JUL 13 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WAYNE COUNTY UNTIL
1030 PM EDT...
At 956 PM EDT, Doppler radar was tracking a strong thunderstorm near
Gardi, moving northeast at 15 mph.
Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph
can be expected along with possible minor damage.
Locations impacted include...
Jesup, Gardi, Doctortown, Broadhurst and Mount Pleasant.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3164 8179 3163 8179 3163 8177 3161 8177
3161 8175 3160 8175 3161 8174 3158 8170
3156 8170 3154 8167 3151 8166 3147 8161
3143 8164 3136 8178 3136 8181 3135 8185
3148 8198 3165 8183 3165 8181 3166 8181
TIME...MOT...LOC 0156Z 236DEG 12KT 3147 8180
HESSSpecial Weather Statement
National Weather Service Jacksonville FL
1110 PM EDT FRI JUL 13 2018
GAZ152-140345-
Brantley GA-
1110 PM EDT FRI JUL 13 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BRANTLEY COUNTY
UNTIL 1145 PM EDT...
At 1110 PM EDT, Doppler radar was tracking a strong thunderstorm over
Waynesville, or 11 miles east of Nahunta, moving northeast at 5 mph.
Excessive cloud-to-ground lightning and wind gusts of 40 to 50 mph
can be expected along with possible minor damage.
Locations impacted include...
Waynesville and Atkinson.
LAT...LON 3128 8175 3126 8176 3119 8177 3115 8180
3113 8182 3117 8193 3136 8180 3128 8174
TIME...MOT...LOC 0310Z 247DEG 5KT 3123 8179
MCGINNISThe national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
A weather station along Bartow Street in Brunswick, just west of Coffin Park, measured 3.71 inches since midnight.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2018Every state in 2018This day in weather historyWarnings in Georgia, July 2018
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: 771983.