Plan your trip Local Radar Detailed Forecast

Today: Partly cloudy with chance of showers and slight chance of thunderstorms in the morning then mostly cloudy with showers and thunderstorms likely in the afternoon. Highs in the lower 90s. Southwest winds 10 to 15 mph. Chance of rain 60 %. Heat index readings 102 to 106.

Tonight: Partly cloudy. Slight chance of showers and thunderstorms in the evening then chance of showers and thunderstorms after midnight. Lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 30 %.

Scattered thunderstorms are forecast this afternoon with storm motion towards the northeast around 15 mph. Locally heavy downpours, gusty winds and frequent cloud to ground lightning can be expected in the stronger storms.

The combination of temperatures climbing into the lower to mid 90s and high humidity will create heat indices between 100 and 110 degrees. If you plan to be outside avoid prolonged exposure or strenuous physical activity.

Forecast Details: remnants of Tropical Depression Five (broad circulation) is currently centered southeast of the mouth of the Mississippi River with a surface trough extending east and near the Florida Panhandle coastline. Doppler radars show scattered showers in vicinity of this trough with an stray shower noted near Gilchrist and Suwannee counties in northeast Florida at 300 am EDT. Skies were mostly clear across the Jacksonville County Warning Area with light southerly winds observed. This flow regime will likely limit fog development the remainder of tonight and into Thursday morning.

Today southwest winds will prevail in the lower levels of the atmosphere and this flow regime favors morning activity near the I-75 corridor with activity spreading east-northeast as the day unfolds. Precipitable waters are forecast to stay above 2 inches and have included chance/likely probability of precipitation with the highest probability of precipitation reserved for our western-most zones as broad circulation in the Gulf continues to press slowly north.

The southwest flow regime will likely pin Gulf Coast sea-breeze close to the coast with afternoon highs in the lower to middle 90s. Heat indices are forecast to climb to between 105 and 110 degrees.Will hold off issuing heat advisory as confidence is low at this time of reaching 110 degree threshold and will heavily word the hazardous weather outlook.

Today's Pollen Levels: 6.5 Medium (on a scale to 12); Predominate Pollen: Grass and chenopods.

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