WTUS82 KJAX 040317 HLSJAX FLZ021-023-024-030-031-033-035-038-120-124-125-132-133-136>138-140-220-225-232-236-237-240-322-325-340-422-425-522-GAZ132>136-149-151>154-162-163-165-166-250-264-350-364-041000- Tropical Storm Debby Local Statement Advisory Number 7 National Weather Service Jacksonville FL AL042024 1117 PM EDT Sat Aug 3 2024 This product covers Northeast Florida and Southeast Georgia DEBBY A LITTLE STRONGER NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Tropical Storm Watch is in effect for Eastern Hamilton, Echols, Gilchrist, Suwannee, and Western Hamilton * STORM INFORMATION: - About 430 miles south-southwest of Jacksonville FL or about 340 miles south-southwest of Ocala FL - 24.4N 83.6W - Storm Intensity 45 mph - Movement Northwest or 320 degrees at 14 mph SITUATION OVERVIEW ------------------ Tropical Storm Debby will track north northwest over the eastern Gulf of Mexico tonight and Sunday, then begin to track north to northeast Sunday night into early Monday. Debby is expected to reach hurricane strength prior to landfall during the day Monday along the Big Bend coast. Outer rainbands from Debby will begin to increase over northeast Florida through the day Sunday, with the heaviest rainfall overspreading the area Sunday night through Monday night. The greatest local hazard will be flooding rainfall potential and local river flooding. Debby will likely slow down after landfall late Monday into Tuesday somewhere over or near the southeast U.S. coast, which will continue the flooding rainfall threat. In addition to heavy rainfall, storm surge inundation of up to 3 feet is possible, especially for locations north of St. Augustine to Brunswick Sunday night into Monday morning. Heavy coastal rainfall combined with surge will create flooding issues, especially in poor drainage areas of coastal communities. If Debby strengthens further prior to landfall, portions of the Suwannee River Valley could experience strong tropical storm force winds. Gusts to tropical storm force are expected in heavy rainbands across southeast Georgia and northeast Florida Sunday night through Monday. Isolated tornadoes and waterspouts will be possible beginning Sunday evening and through Sunday night. POTENTIAL IMPACTS ----------------- * FLOODING RAIN: Prepare for life-threatening rainfall flooding having possible extensive impacts across southeast Georgia and northeast Florida. Potential impacts include: - Major rainfall flooding may prompt many evacuations and rescues. - Rivers and tributaries may rapidly overflow their banks in multiple places. Small streams, creeks, canals, and ditches may become dangerous rivers. Flood control systems and barriers may become stressed. - Flood waters can enter many structures within multiple communities, some structures becoming uninhabitable or washed away. Many places where flood waters may cover escape routes. Streets and parking lots become rivers of moving water with underpasses submerged. Driving conditions become dangerous. Many road and bridge closures with some weakened or washed out. * WIND: Prepare for dangerous wind having possible significant impacts across the Suwannee River Valley. Potential impacts in this area include: - Some damage to roofing and siding materials, along with damage to porches, awnings, carports, and sheds. A few buildings experiencing window, door, and garage door failures. Mobile homes damaged, especially if unanchored. Unsecured lightweight objects become dangerous projectiles. - Several large trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Several fences and roadway signs blown over. - Some roads impassable from large debris, and more within urban or heavily wooded places. A few bridges, causeways, and access routes impassable. - Scattered power and communications outages, but more prevalent in areas with above ground lines. * SURGE: Prepare for locally hazardous surge having possible limited impacts across coastal locations of northeast Florida and southeast Georgia. Potential impacts in this area include: - Localized inundation with storm surge flooding mainly along immediate shorelines and in low-lying spots, or in areas farther inland near where higher surge waters move ashore. - Sections of near-shore roads and parking lots become overspread with surge water. Driving conditions dangerous in places where surge water covers the road. - Moderate beach erosion. Heavy surf also breaching dunes, mainly in usually vulnerable locations. Strong rip currents. - Minor to locally moderate damage to marinas, docks, boardwalks, and piers. A few small craft broken away from moorings. * TORNADOES: Prepare for a tornado event having possible limited impacts across Northeast Florida and Southeast Georgia. Potential impacts include: - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and small boats pulled from moorings. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- * EVACUATIONS: Follow the advice of local officials. OTHER PREPAREDNESS INFORMATION: When making safety and preparedness decisions, do not focus on the exact forecast track since hazards such as flooding rain, damaging wind gusts, storm surge, and tornadoes extend well away from the center of the storm. If in a place that is vulnerable to high wind, such as near large trees, a manufactured home, upper floors of a high-rise building, or on a boat, plan to move to safe shelter. If you live in a place particularly vulnerable to flooding, such as near the ocean or a large inland lake, in a low-lying or poor drainage area, in a valley, or near an already swollen river, plan to move to safe shelter on higher ground. When securing your property, outside preparations should be concluded as soon as possible before conditions deteriorate. The onset of strong gusty winds or flooding can cause certain preparedness activities to become unsafe. Check on those who may not be fully aware of the situation or who are unable to make personal preparations. If you are a visitor, know the name of the county or parish in which you are located and where it is relative to current watches and warnings. If staying at a hotel, ask the management staff about their onsite disaster plan. Listen for evacuation orders, especially pertaining to area visitors. Closely monitor weather.gov, NOAA Weather Radio and local news outlets for official storm information. Listen for possible changes to the forecast. There is a threat from tornadoes with this storm. Have multiple ways to receive Tornado Warnings. Be ready to shelter quickly. * ADDITIONAL SOURCES OF INFORMATION: - For information on appropriate preparations see ready.gov - For information on creating an emergency plan see getagameplan.org - For additional disaster preparedness information see redcross.org NEXT UPDATE ----------- The next local statement will be issued by the National Weather Service in Jacksonville FL around 6 AM EDT, or sooner if conditions warrant. $$