Through 10 am areas of fog will reduce visibilities to less than one mile across portions of the area. Patchy dense fog with visibilities near or below a quarter of a mile are expected. In addition smoke from a fire near Lochloosa will affect U.S.- 301 from Hawthorne to Island Grove and also portions of SR-20 west of Interlachen. Motorists should remain alert for rapid changes in visibility and use only low-beam headlights in fog or smoke.
Today: Partly sunny, with a high near 72. Breezy, with a west wind between 8 and 16 mph, with gusts as high as 26 mph.
Tonight: Partly cloudy, with a low around 46. West wind 8 to 10 mph becoming north.
Hazardous Weather: patchy fog will reduce visibilities below 2 miles at times early this morning across portions of northeast Florida.
Smoke from a wildfire in southeast Alachua County near Lochloosa will drift eastward toward Palatka this morning. Visibilities along U.S.-301 from Hawthorne to Island Grove may be reduced in the smoke.
Forecast Details: . upper high is centered over the west Gulf of Mexico with west-northwest flow over the area. Weak cold front presently extends from a low over Tennessee to north central Texas. Ahead of this feature an expansive area of low clouds has spread beneath a roughly 850mb inversion. Only a few sites closer to the surface low reporting light precipitation. Most support for this system lies beneath the 500mb level. Skies across the southeast 1/2 of the area remain mostly clear with thick cloudiness at about the 7,000 ft level over our northwest zones and more clouds beginning to develop over the Suwannee River Valley area. Temperatures are coldest over the southern zones ranging from near 40 over the interior of northeast Florida to the lower to middle 50s beneath thick clouds over the northwest.
Clouds will continue to gradually spread into the area through the morning hours before beginning to thin from the northwest later in the day. Due to the lack of forcing and instability have continued silent probability of precipitation across the area. Expect some sprinkles in some areas...but not expecting much in the way of measurable precipitation. Maximum temperatures will be tricky today. Would go under guidance in many areas due to thick morning cloud cover, but expect more breaks in the clouds as the day progresses and maximums in the lower 70s are certainly not out of the question.
Cooler air will filter in behind the front tonight. Have leaned heavily toward the warmer NAM guidance for mins due to the wind and past performance. Have also used a non-diurnal MOS-based temperature curve due to the cold air advection.
Today's Pollen Levels: 1.3 Low (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/

No comments:
Post a Comment