Archive for February 2nd, 2013
Skies have cleared quickly over the northern half of the area, and the clearing is progressing southward as our disturbance pulls away.
Areas that saw measurable rain today will be especially susceptible.
Be alert to the presence of the fog if you will be driving this evening or later tonight.
It should burn off quickly tomorrow morning, setting the stage for a mostly sunny day with just a few clouds developing. Highs will be in the lower 50s after lows near or just below freezing tonight.
The National Weather Service has issued a Dense Fog Advisory until 3 AM for all of Central Alabama. A dense fog advisory means that visibilities will frequently be reduced to one quarter of a mile or less. The showers that have moved through Alabama and subsequent cooling associated with them are making conditions favorable for the development of fog across the state this evening and into the overnight hours.
Dense fog has developed in many areas across Alabama and it will last for several hours. Expect the fog field to expand through the overnight hours, but should begin to mix out by about sunrise. Visibilities will be less than half a mile. Travel could become hazardous in some areas that have dense fog. Please slow down and use your low beams.
As we head throughout the rest of the evening and into tonight we will see the rain diminishing and the skies clearing. If the clouds get out of here in time, temperatures may be a few degrees cooler than expected. Already seeing clear skies in in our northwestern counties. Expect some of our northern counties to settle into the upper 20s. Birmingham metro will be right around the freezing mark. The majority of the rain activity has finally shifted south of I-20, with the heaviest rain falling along Highway 280 around Alexander City over to Wedowee.
Additionally, we are seeing some fog developing this evening in areas that received rain from the showers that are continuing to push off to the southeast and into Georgia. The fog could become dense at times, but no advisories have been issued. Just use the low beams if you encounter any if you are out and about tonight. Tomorrow’s weather will be much better than today, expect a cold start but skies will be sunny and temperatures will rise into the mid 50s by mid-afternoon. There will be a brisk north wind as well, so it may feel a little cooler than it actually is.
Many areas across North Alabama continue to pick up some cold winter rain. May still have a few sleet pellets or even a snow flake mixing in over some areas. The precip is not falling as heavy as it appears it is on radar. This commonly happens in the winter time. High returns show up because the precip in the upper levels is all frozen and reflects the radar beam better, and if there is a thin liquid layer covering the ice pellets, it will even have higher reflectivity and that is what we are seeing today. With the lower few thousand feet of the atmosphere above freezing, most of the winter precip is melting before reaching the surface. We are seeing the best radar returns across the Tennessee River Valley and even down into Winston, Walker and Fayette Counties.
The rain continues to be along and north of Interstate 20 this afternoon. Movement continues to be more east than south. Most areas south of I-20 should remain relatively dry for the rest of today. Most of the rain is over Alabama, with the back edge near Tupelo, Mississippi. This will last for a few more hours as it will continue to move off into North Georgia. Surface temperatures are above the freezing mark so we are seeing no issue with icing on roads. Just look for some slick spots as roads will be wet. Temperatures will stay above freezing overnight and the rain will be out of here before we start our Sunday.
Early this afternoon we have a mix bag of weather across Alabama. Looking at the latest satellite image, the northern half of Alabama has mostly cloudy to overcast skies. The southern half of Alabama, is basking in the sun. These clouds across the north should continue to move east throughout the afternoon, and should still be around into the overnight hours. The clouds should actually help keep most of our temperatures above the freezing mark tonight. Underneath some of the thicker clouds we are seeing some very light showers.
A peek at the radar shows some of these showers. Nothing heavy, and most of the activity remains north of the Interstate 20 corridor. This activity will continue to slowly move to the east, still could see a mix of sleet and snow in some of our northeastern counties, but nothing too significant. The clouds and showers should be out of here by tomorrow.
The NWS in Huntsville has trimmed back the winter weather advisory. It remains in effect until 2 pm for just Dekalb and Jackson counties.
Temperatures across all of the Tennessee River Valley have risen above freezing. The atmosphere appears to have warmed enough that all of the precipitation has switched over to snow with the exception of the two northeastern counties of Alabama where a mixture of sleet and freezing rain is still possible.
The NWS in Atlanta has also issued a winter weather advisory for the northwest corner of Georgia for this afternoon until 7 pm.