After a beautiful start to the workweek, big changes are in store. First...a "wedge" of cooler air will push southward along the coast Tue. The day will begin quite mild & warm nicely in the morning only to be halted by surface winds that will shift to the northeast off the cool Atlantic. So temps. will peak from late morning through early afternoon then fall into the 50s & 60s with an increase in clouds. Temps. will be the highest the longest west & southwest of Jax, but the cooler air will manage to reach all the way west to Lake City & south to Starke by late in the day.
The second "big player" will be yet another major winter storm in the deep south. The First Coast will not be as cold with this weather system as 2 weeks ago but ice & snow will not be far away. Anyone with travel plans north on I-95 or I-75 might want to think twice or at least certainly check the latest forecasts for late Tue. through early Thu. The Atlanta (Peachtree), Ga. N.W.S. has posted a web discussion/timeline of the winter storm from a couple of weeks ago -- click ** here **.
The purple color below is a winter weather advisory.. pink is a winter storm warning... blue is a winter storm watch... deep purple is an ice storm warning.
For Jacksonville, NE Fl., & SE Ga., this system will bring widespread rain & a few rumbles of thunder Wed. afternoon & night. Rain will be heavy at times, & we'll have to watch for some potential for strong storms which will hinge on the location of a warm front that will be near I-10 Wed. evening. On the backside of the storm, much cooler air will follow for Thu. with highs only in the 50s & lows early Fri. in the 30s - cold enough for a bit of inland frost near & west of Highway 301.
California finally received some much needed rain & higher elevation snow during the past few days. The "Pineapple Express" -- moisture streaming northeast from near Hawaii to California -- was partly responsible for the wet weather. Click ** here ** for an animation from NOAA's GOES-West satellite... click ** here ** for an explainer. Much more is needed but at least the pattern will favor more moisture for the Western U.S. for much of the rest of this month.