Winter, or really, a deep, cold fall is
Over the weekend, a trough of low pressure aloft was over southern Canada and the northern Midwest. The trough has since swung southeastward into the Midwest, Great Lakes, and into the Eastern United States.
The dip in the jet stream, along with a strong high pressure at the surface has brought cold and dry air to the eastern half of the country.
Temperatures as of Tuesday evening ranged from the 20s near Memphis, Tenn. to the upper 60s in Gainesville, Fla. And temperatures are expected to take a tumble Tuesday night into Wednesday morning – some of the coldest weather so far this season.
As for the Tallahassee area, models have slowly trended downward for the Wednesday morning low since the weekend. What looked like the lower 40s is now likely the 30s. Some of the South Georgia locations could get near freezing. Freeze warnings have been issued for most of Georgia, Alabama, Mississippi, and the Florida panhandle. Temperatures between 27 and 32 are possible closer to the western Big Bend and South Georgia, but the warning lies just to the north and west of Leon County.
Those in the freeze warnings need to ensure precautions are taken to protect sensitive plants, crops, pets, and people.
With the change and spread with guidance models, it has made the forecast a slight challenge. But, as of Tuesday evening, the temperature is trending with the heart of the solutions. It’s a safe bet that it will be close to 34 Wednesday morning in Tallahassee, but the wind will die down slowly through the early morning. The wind will leave the temperature feeling colder than it actually is. I would not be surprised if normally colder, rural locations hit the freezing mark.
The high will likely not leave the 50s on Wednesday with plenty of sunshine. But the low for Thursday morning will not be as low as moisture will begin to roll back in, bringing the low to a less cold middle 40s.