August continued the summer of 2013's abnormal weather pattern of weakening cold fronts stalling and washing out across Southeast Georgia and Northeast Florida. This continued to keep temperatures from getting too hot with near normal temperatures recorded in August, but it also brought significant pockets of heavy rainfall from slow moving thunderstorms. The big weather story of the month occurred in Jacksonville as a strong thunderstorm mixed with the sea breeze front on the afternoon of August 1st and an EF1 Tornado developed in the Arlington section of town with 15 to 20 homes damaged...some severely, along with numerous trees downed, but only 1 person was reported to have received minor injuries. The tornado was about 100 yards wide and traveled a distance of 2.5 miles through the eastern suburbs of Jacksonville.
As can be seen in the monthly rainfall graphics below...rainfall was quite variable across the region, but 10 to 15 inch values across the Altamaha River Basin in Southeast Georgia and along the Suwannee River Basin and I-75 corridor of Northeast Florida sent those river basins into flood for much of the month. In fact, several counties across inland southeast Georgia had to postpone the start of the new school year due to secondary roads being flooded and/or too muddy during the middle part of the month. A slow moving thunderstorm produced flash flooding in the Jesup vicinity of Wayne County on the 20th which damaged several homes. The remainder of the forecast area received near normal precipitation which ranged from 4 to 8 inches in most locations, although Gainesville only reported 2.80 inches, its 7th driest August on record which comes on the heels of its all-time wettest July on record.
|Aug 2013 Climate Data||Average Temperature||Monthly High||Monthly Low||Total Precipitation||Daily Max Rainfall||Highest Wind Gust|
|Jacksonville, FL (JAX)||81.8 F (Normal)||95 F on 12th, 13th||69 F on 28th||
|1.07" on 14th||53 mph on 31st|
|Gainesville, FL (GNV)||82.3 F (+1.4 F)||96 F on 12th||69 F on 28th||
|0.55" on 16th||31 mph on 1st|
|Alma, GA (AMG)||81.5 F (+0.2 F)||95 F on 12th, 13th||65 F on 28th||
|2.66" on 15th||36 mph on 4th|
|St. Simons Island, GA (SSI)||82.0 F (+0.2 F)||96 F on 13th||71 F on 15th, 26th||
|2.40" on 15th||30 mph on 21st|
Jason Hess - Climate Focal Point