The areas affected include... Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM... Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM...
At 345 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located 12 nm east of Guana River State Park, or 16 nm northeast of Saint Augustine, moving east at 15 knots.