HLSSJU PRZ001>013-VIZ001-002-132015- Tropical Storm Ernesto Local Statement Intermediate Advisory Number 7A National Weather Service San Juan PR AL052024 812 AM AST Tue Aug 13 2024 This product covers Puerto Rico and the US Virgin Islands **ERNESTO STRENGTHENS A LITTLE WHILE PASSING ACROSS THE LESSER ANTILLES** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Tropical Storm Warning is in effect for all of Puerto Rico and the Virgin Islands * STORM INFORMATION: - About 300 miles east-southeast of San Juan PR or about 210 miles east-southeast of Saint Croix VI - 16.6N 61.9W - Storm Intensity 45 mph - Movement West or 280 degrees at 18 mph SITUATION OVERVIEW ------------------ Ernesto will bring tropical storm conditions and periods of heavy rain to Puerto Rico and the U.S. Virgin Islands, with the potential for flash flooding and mudslides. Rainbands will gradually increase throughout the day, becoming more frequent and heavier later on the afternoon and evening, and lingering through at least Wednesday afternoon. Marine and coastal conditions will quickly deteriorate today with seas greater than 10 feet and life- threatening rip currents and rough surf conditions. POTENTIAL IMPACTS ----------------- * FLOODING RAIN: Protect against life-threatening rainfall flooding having possible extensive impacts across the U.S. Virgin Islands and Puerto Rico. 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, arroyos, and ditches may become dangerous rivers. In mountain areas, destructive runoff along steep terrain will result in many rockslides and landslides. 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. Protect against dangerous rainfall flooding having possible limited to significant impacts across northwestern Puerto Rico. * WIND: Protect against dangerous wind having possible significant impacts across the U.S. Virgin Islands and Puerto Rico. 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. Also, protect against hazardous wind having possible limited impacts across western sections of teh islands. * SURGE: Protect against locally hazardous surge having possible limited impacts across most of the coastal areas of Puerto Rico and the U.S. Virgin Islands. 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. Elsewhere across Puerto Rico and the US Virgin Islands, little to no impact is anticipated. * TORNADOES: Protect against a tornado event having possible limited impacts across Culebra, Saint Thomas and the eastern sections of St. Croix. 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. Elsewhere across Puerto Rico and the US Virgin Islands, little to no impact is anticipated. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- * EVACUATIONS: Follow the advice of local officials * OTHER PREPAREDNESS INFORMATION: Now is the time to bring to completion all preparations to protect life and property in accordance with your emergency plan. Outside preparations should be wrapped up as soon as possible before weather conditions completely deteriorate. Any remaining evacuations and relocations should be expedited before the onset of tropical storm force wind. If you are relocating to safe shelter, leave as early as possible. If heading to a community shelter, become familiar with the shelter rules before arrival, especially if you have special needs or own a pet. Take essential items with you from your Emergency Supplies Kit. Check the latest weather forecast before departing. Failure to adequately shelter may result in serious injury or loss of life. Always heed the advice of local officials and comply with any orders that are issued. Remember, during the storm 9 1 1 Emergency Services may not be able to immediately respond if conditions are unsafe. This should be a big factor in your decision making. Check-in with your emergency points of contact among family, friends, and workmates. Inform them of your status and well-being. Let them know how you intend to ride out the storm and when you plan to check-in again. Keep cell phones well charged and handy. Also, cell phone chargers for automobiles can be helpful after the storm. Locate your chargers and keep them with your cell phone. In emergencies it is best to remain calm. Stay informed and focused on the situation at hand. Exercise patience with those you encounter. Be a Good Samaritan and helpful to others. If relocating to a nearby shelter or to the home of a family member or friend, drive with extra caution, especially on secondary roads. Remember, many bridges and causeways will be closed once higher winds arrive. Also, if you encounter water covering the road, seek an alternate route. Always obey official road signs for closures and detours. If you are a visitor and still in the area, listen for the name of the city or town in which you are staying within local news updates. Be sure you know the name of the county or parish in which it resides. Pay attention for instructions from local authorities. Closely monitor NOAA Weather radio or other local news outlets for official storm information. Be ready to adapt to possible changes to the forecast. * 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 San Juan PR around 11 AM AST, or sooner if conditions warrant. $$ $$