Author Archives: AWXVTEC FEED
White Christmas Analysis
Here’s the deal, after looking at some of the 12 UTC models. Over the next couple of days, northerly winds blowing out of a big, cold high pressure area centered near Minnesota will push cold air back in here, with temperatures falling into … Continue reading
White Christmas Chance – 30%
00 UTC NAM makes the snow look a little more likely on Christmas day…with a vigorous upper level disturbance approaching, and 850 mb temps already below 0 C from I-59 north. More later once the other models are in…
A Slow Warm-Up
While most of Alabama is already warmer at 3:00 AM than it has been in almost a week, a small part of the state is still hovering near freezing, and road conditions may still be slushy or icy. All airport … Continue reading
Ice update – 330 pm
As mentioned in my previous blog, the big issue now is figuring out when temperatures are going to rise above freezing over north and central Alabama, allowing any remaining icy roads/bridges to melt. Temperatures were still at or just below … Continue reading
When will the ice melt?
…See James’ complete forecast below… Clearly, the rain was just heavy enough this morning, and the air was just dry enough at the surface, so that evaporation of some of the raindrops brought temperatures down to freezing or below (evaporation uses … Continue reading
Spot Reports
It sure was quiet on the ice report front until about 20 minutes ago. Parts of northern Mississippi are under a glaze of ice, including this picture from Jonathan Rodgers at the University of Mississippi in Oxford: (reports thanks to … Continue reading
Light Rain Moving In
Light rain has begun over eastern Mississippi and western Alabama within the last hour, but no ice has been reported as of 3 AM. The automated weather observations in Oxford and Columbus, Mississippi showed light rain with temperatures in the … Continue reading
Quick Look Ahead
Much of northeastern Alabama is covered with a dusting of snow this morning. We have had reports of powdery snow covering parts of Cullman, Etowah, and Cherokee Counties. Some roads are covered with powder, but there has not been much … Continue reading
Rare types of snowflakes in Alabama
The above balloon data from NWS Birmingham at 5 pm last evening show the extremely cold air in the lower levels, and the continued instability, due to temperatures dropping rapidly with height, that has been in place since Sunday morning. … Continue reading
Snow analysis – 200 pm
Convective snow showers (caused by moisture and instability, similar to summer thunderstorms) continue over north and central Alabama this afternoon. Looking at the radiometer data, that gives us a sounding of the atmosphere every one minute, shows temperatures decreasing rapidly with … Continue reading
