Wind Chills to -12 Tonight-Early Wednesday Morning…………Update On Thursday-FridayFebruary 19th, 2013 at 2:22 pm by Chad Evans under Chad's WLFI Weather Blog
Another Arctic blast is rolling in. Again, if there was more snow cover to our northwest, this would be much worse. Tonight, temperatures in Minnesota may drop as low as -24. Even areas near Minneapolis may see -17. We have had several potent Arctic blasts this winter, which is much more typical, but snow cover in our viewing area & in central & northern Illinois has not been typical.
Wind chills may drop as low as -12 tonight with low temperatures near 7. Snow showers will gradually end later today with very minor accumulations. Winds will still be brisk & gusty tonight.
Almost everything looks good with on-going forecast. Only change I see is dropping glaze ice from 1/8″ to 1/10″ of accumulation. 1-3″ of sleet & snow look good. Appears precipitation may not move in, though, until Thursday evening. Will have exact time line of the wintry precipitation this evening.
This is not just for Lafayette, but entire viewing area. Higher snow & sleet totals will be in our northern counties.
Changeover to patchy light rain/drizzle looks good early Friday morning as temperatures rise from 27 to 38.
Will tweak, if needed.
+12″ snow looks good for Nebraska to Iowa, but expanded to Kansas with 4-8″ still a good bet around Chicago. Winds will create near/blizzard conditions in Kansas & Nebraska.
In central & southern Louisiana to Mississippi, thinking a couple long-lived, strong tornadoes from a couple/three long-lived, cyclical supercells will be possible. Overall, trimmed much larger severe weather outbreak extent due to some recycling of cP air in the South. Regardless, parameters support tornadoes parts of Louisiana & Mississppi.