Today: Sunny, with a high near 76. South wind between 5 and 9 mph.

Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 51. East wind around 5 mph becoming calm.

New Year's Day: Patchy fog before 8am. Otherwise, partly sunny, with a high near 76. South wind between 3 and 11 mph, with gusts as high as 21 mph.

Saturday Night: Mostly cloudy, with a low around 54. Light south wind.



Sunday: A 30 % chance of showers. Mostly cloudy, with a high near 74. Southwest wind between 3 and 8 mph.

Sunday Night: A 20 % chance of showers before 1am. Mostly cloudy, with a low around 44. 

Hazardous Weather: There is potential for some dense fog to develop late tonight, otherwise hazardous weather is not expected.

A cold front will advance across the area Saturday night and Sunday. Isolated thunderstorms may accompany the front.

Forecast Details: A shortwave undercutting East Coast ridge is showing up quite nicely on water vapor imagery moving east across northeast Florida early this morning. Associated high cloud cover has kept temperatures mild south of I-10. A stratocumulus deck resides over portions of southeast Georgia. Some patchy fog has been observed over Duval County but elsewhere cloud cover has inhibited development. Upper ridge will continue to build over the eastern United States today. Increasing thicknesses support maximum temperatures in the 70s across most of the area today. The exception will be right along the Atlantic coast where a cool onshore flow will keep temperatures from climbing out of the 60s. More sun than clouds expected today. Shortwave and weak inverted trough will combine to produce a few light rain showers over the Atlantic offshore waters today.

Temperatures will remain roughly 10 degrees above normal through Sunday. Upper ridge will shift offshore on Saturday as broad upper trough over the central Continental U.S. pushes east. Cold front will also advance in our direction. Overall Saturday will be a very nice day with highs in the middle 70s most areas. Some cirrus-filtered sun will get the day started but cirrus clouds will thicken and lower during the day. Increasing moisture in deep southwest flow may support a few showers (20 to 30 %) over our far western zones late in the day.

Best dynamics expected to remain north of the region where the heaviest rain is expected. The latest runs of the NAM show strong shortwave energy lifting northeast out of the Gulf of Mexico with potential for elevated thunderstorms across our western zones late Saturday night. Not a lot of support exists for this solution so probability of precipitation for Saturday night will continue to be capped at 40 %.

Actual front will not push into the area until Sunday afternoon. Low level convergence appears favorable for shower activity ahead of the front during the day. Overall organization remains uncertain but best chances will reside across southeast Georgia. Will go ahead and bump up probability of precipitation to 50 % across southeast Georgia on Sunday. Since northeast Florida will remain in southwest flow most of the day temperatures should top out in the low to middle 70s under mostly cloudy skies. High thickness values also support this. Showers along the front will dwindle as we go into the evening hours.

Today's Pollen Levels: 4.4 Low Medium (on a scale to 12); Predominate Pollen:Juniper 

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