000 WTNT31 KNHC 140224 TCPAT1 BULLETIN TROPICAL STORM JULIA ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112016 1100 PM EDT TUE SEP 13 2016 ...TROPICAL STORM JULIA FORMS ALONG THE COAST OF NORTHEASTERN FLORIDA... ...SLOW-MOVING STORM EXPECTED TO PRODUCE HEAVY RAINFALL... SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...30.3N 81.6W ABOUT 5 MI...10 KM W OF JACKSONVILLE FLORIDA ABOUT 60 MI...100 KM S OF BRUNSWICK GEORGIA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...NNW OR 345 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: A Tropical Storm Warning has been issued from Ponte Vedra Beach, Florida, northward to Altamaha Sound, Georgia. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Ponte Vedra Beach to Altahama Sound A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. In this case, tropical storm conditions are already occurring within the warning area. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1100 PM EDT (0300 UTC), the center of Tropical Storm Julia was located near latitude 30.3 North, longitude 81.6 West. Julia is moving toward the north-northwest near 9 mph (15 km/h) and this motion is expected to continue tonight with a reduction in forward speed tomorrow. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Some weakening is forecast during the next 48 hours. Little change in strength is expected tonight. Julia is forecast to weaken to a tropical depression by late Wednesday. Tropical-storm-force winds extend outward up to 45 miles (75 km), mainly to the northeast and southeast of the center. Recent observations indicate that sustained tropical-storm-force winds are occurring along the northeast coast of Florida from Ponte Vedra northward to the mouth of the St. Johns River. The estimated minimum central pressure is 1009 mb (29.80 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical-storm-force winds are already occuring within the tropical storm warning area. RAINFALL: Julia is expected to produce 3 to 6 inches of rain near the northeast Florida, Georgia, and South Carolina coastlines through Friday afternoon. Isolated totals of 10 inches are possible. This rainfall could lead to flash flooding. Flooding may be further compounded with persistent strong onshore flow reducing river and stream discharges. TORNADOES: An isolated tornado or two will be possible tonight through Wednesday morning across parts of northeastern Florida and southeastern Georgia. NEXT ADVISORY ------------- Next intermediate advisory at 200 AM EDT. Next complete advisory at 500 AM EDT. $$ Forecaster Stewart/Franklin