Issued by Jacksonville – FL, US, National Weather Service
Affected Area: Coastal Nassau County
LOCATIONS AFFECTED – Amelia City – Fernandina Beach – Yulee
WIND – LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind – Peak Wind Forecast: 40-50 mph with gusts to 85 mph – Window for Tropical Storm force winds: early Thursday morning until early Saturday morning – THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph – The wind threat has remained nearly steady from the previous assessment. – PLAN: Plan for hazardous wind of equivalent tropical storm force. – PREPARE: Efforts to protect property should now be underway. Prepare for limited wind damage. – ACT: Act now to complete preparations before the wind becomes hazardous. – POTENTIAL IMPACTS: Limited – Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. – Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Some fences and roadway signs blown over. – A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. – Scattered power and communications outages.
STORM SURGE – LATEST LOCAL FORECAST: Life-threatening storm surge possible – Peak Storm Surge Inundation: The potential for 2-4 feet above ground somewhere within surge prone areas – Window of concern: Wednesday afternoon until early Friday morning – THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm surge flooding greater than 3 feet above ground – The storm surge threat has remained nearly steady from the previous assessment. – PLAN: Plan for life-threatening storm surge flooding of greater than 3 feet above ground. – PREPARE: Storm surge flooding preparations should be underway. Assemble disaster supplies and know your evacuation route. – ACT: Leave if evacuation orders are given for your area. Failure to heed evacuation orders may result in the loss of your life. – POTENTIAL IMPACTS: Significant – Areas of inundation with storm surge flooding accentuated by waves. Damage to several buildings, mainly near the coast. – Sections of near-shore escape routes and secondary roads become weakened or washed out, especially in usually vulnerable low spots. – Major beach erosion with heavy surf breaching dunes. Strong and numerous rip currents. – Moderate damage to marinas, docks, boardwalks, and piers. Several small craft broken away from moorings, especially in unprotected anchorages.
FLOODING RAIN – LATEST LOCAL FORECAST: – Peak Rainfall Amounts: 8-12 inches, with locally higher amounts – THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for moderate flooding rain – The flooding rain threat has remained nearly steady from the previous assessment. – PLAN: Emergency plans should include the potential for moderate flooding from heavy rain. Evacuations and rescues are possible. – PREPARE: Consider protective actions if you are in an area vulnerable to flooding. – ACT: Heed any flood watches and warnings. Failure to take action may result in serious injury or loss of life. – POTENTIAL IMPACTS: Significant – Moderate rainfall flooding may prompt several evacuations and rescues. – Rivers and tributaries may quickly become swollen with swifter currents and overspill their banks in a few places, especially in usually vulnerable spots. Small streams, creeks, canals, and ditches overflow. – Flood waters can enter some structures or weaken foundations. Several places may experience expanded areas of rapid inundation at underpasses, low-lying spots, and poor drainage areas. Some streets and parking lots take on moving water as storm drains and retention ponds overflow. Driving conditions become hazardous. Some road and bridge closures.
TORNADO – LATEST LOCAL FORECAST: – Situation is unfavorable for tornadoes – THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Tornadoes not expected – The tornado threat has remained nearly steady from the previous assessment. – PLAN: Tornadoes are not expected. Showers and thunderstorms with gusty winds may still occur. – PREPARE: Little to no preparations needed to protect against tornadoes at this time. Keep informed of the latest tornado situation. – ACT: Listen for changes in the forecast. – POTENTIAL IMPACTS: Little to None – Little to no potential impacts from tornadoes.