Plan your trip Local Radar Detailed Forecast

Today: Mostly cloudy with chance of showers and isolated thunderstorms. Highs in the upper 80s. East winds 10 to 15 mph. Chance of rain 50 %.

Tonight: Partly cloudy. Slight chance of showers and isolated thunderstorms in the evening. Patchy fog after midnight. Lows in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 20 %.

Hazardous Weather Outlook: Numerous showers and isolated thunderstorms are expected near the coast during the morning and inland during the afternoon. Locally heavy rainfall is possible along the coast this morning which may cause localized flooding. The storms may become strong inland during the afternoon and will be capable of frequent cloud to ground lightning and strong and gusty winds.

Forecast Details: MSAS analysis is showing an area of high pressure across the middle Atlantic slowly moving south. The gradient, including the coastal trough, is tightening and radar is indicating numerous convergent bands of showers offshore moving ashore the northeast Florida coast. These showers will likely produce brief periods of heavy rain and gusty winds and there will probably be locally heavy rainfall amounts near the coast due to training of cells. Aloft the southeast U.S. is dominated by the large sub tropical ridge. A short wave trough is slowly pushing east into the ridge and was helping produce a considerable amount of multi-layer cloudiness.

Surface high pressure will continue to build over the Atlantic Seaboard as upper high sinks south and pushes band of deepest atmospheric moisture south and southwest. As a result probability of precipitation will gradually decrease from the north during the next 48 hours. Due to continued northeast to east low-level flow highest probability of precipitation will be over Atlantic coastal areas during the late night and morning hours with much of the activity shifting inland during the afternoon. Best chances of thunder will be near the Gulf Stream at night and over land during the afternoon and early evening. Locally heavy rainfall is likely, especially in convergent bands near the Atlantic coast. Temperatures below normal today, especially near the coast due to cloudiness/percipitation. Temperatures will have a chance to rebound this afternoon across southeast Georgia as drier air and more sunshine moves in. Maximum temperatures will gradually warm thereafter as more sunshine returns to the area.

Today's Pollen Levels: 6.8 Medium (on a scale to 12); Predominate Pollen: Ragweed, Grass and Chenopods.

For additional information visit the National Weather Service in Jacksonville website on the internet at http://www.srh.noaa.gov/jax/