The possibility of severe storms still exist today for areas in the southeast. Currently [ 5:20 AM EST 12/17/2012 ] seeing some moderate to strong thunderstorms in Southeast Mississippi / Southwest Alabama ahead of the cold front generally heading East-Northeast while the Cold front pushes east.
Radar at 5:20 AM EST
The only thing at this time I see limiting stronger storms developing, some possibly severe, is instability and moisture available ahead of the front. This lack of instability will be on the increase. By early afternoon / mid day Georgia should see storms some of which ‘will be severe’ begin to fire off. As always, ‘Not everyone will see severe weather. I don’t think there is enough time this morning for severe storms to break out in south-central Alabama, but may see some later in East Alabama / West Georgia. At the least should see isolated thunderstorms in these areas as morning pushes on. All of this will eventually make it’s way to South Carolina later today.
As mentioned the past few days the greatest threat will be ‘Damaging winds’ associated with the stronger storms. We’ll have to keep an eye on things this afternoon onward for the potential for an isolated tornado as well as hail.
Here’s the outlook for today issued by the SPC ‘valid at 12z – 7 AM EST’ this morning. [click image to embiggen]
I likely wont be posting further updates on this here. Be sure to follow me on twitter where I post information when severe weather is happening including radar images and most if not all Tornado and Severe Warnings with information as to location and where the storms are headed. Follow @Cataulagawx
Tornadic Debris Signature – 0.5 degree correlation coefficient (CC) of Dual Pol from KBMX. There are 3 images in this loop. Notice the “explosion” of CC just east of I-65 on the last two images. This is called a Tornadic Debris Signature or TDS.
Marion County Tornado – These images from the Brandon, MS doppler radar show the tornadic thunderstorm at 8:20 am as the tornado passed near Columbia. The image on the left shows 0.5° base reflectivity data, and the image on the right shows 0.5° storm relative velocity data.
Side note : An active weather pattern continues next week and the following week. Next week may bring some interesting winter weather to the deep southeast per current models or severe storms depending where you’re at. Still a lot of uncertainty in this forecast as models continue to flip flop on final outcome. Computer models should have a better idea this weekend and I’ll post an update then. ~ Ed
HURRICANE SANDY as of 2:00 AM EDT | Winds: 110 mph | Pressure 957 mb | Location: 20.1N 75.9W (10 miles North-NorthWest of Santiago, Cuba) | Moving NNE at 15 mph
At 1:25 AM EDT Sandy makes landfall just west of Santiago De Cuba with winds of 110 mph. Reports from Santiago De Cuba have sustained winds of 78 mph with wind gust up to 114 mph in the last hour. Sandy is a strong category 2 hurricane borderline category 3 which has sustained winds beginning at 111 mph.
Hurricane Sandy making landfall in Cuba [radar may be down at times]