Fri., Feb. 7,2020
Weak Clipper brings a little more snow
A weak Alberta Clipper dropping into the Ohio Valley tonight and tomorrow morning will leave a minor calling card in its wake. Available moisture is lacking and the clipper does not appear strong enough to force much lifting this far south. The clipper’s path is expected to pass over southern IL/IN. That sets up central IN for a possible 1-3″ accumulation tonight and early tomorrow.
Meanwhile, south of a clipper’s path, not much happens. In reaction to the clipper moving north of us, we’ll see southerly winds tonight. That’ll hold temperatures in the low to mid 30’s. Precipitation south of a clipper’s path historically is little or none. So, even though some light snow is possible late tonight and tomorrow morning, accumulation will be in the “little or none” category. Probability for measurable snowfall is about 50%.
Tomorrow morning marks the last snow chance for about a week, at least.
Thursday,Feb. 6, 2020
Light snow possible late tonight
Snow chances have been few and far between this winter. We started with tad about an inch of grass-only snow in November and haven’t been able to match it since. However, we’ll see two chances over the next two days. Best chance for breaking past one inch will come Saturday morning.
A strong upper level trough is passing over today, but so far is having trouble with surface development. That problem should end tonight as a major surface storm will be developing/accelerating northeastward along and just east of the Appalachians tonight. Latest forecasts have the storm path a bit farther east than earlier models. That’s bad news for the Louisville area.
We were expected to be in the western edge of snowfall from this system. Now, it looks like we’ll be “really” on the edge. Far southeastern KY could get up to 6″ overnight. As you head northwest from there, snowfall will lessen. Bowling Green, Lexington and NE KY should be in the 2″-4″ range. E-town, Bardstown, Shelbyville, and Henry County will likely be in the 1″-2″ zone. West of that, snow will fall off quickly. SE Jefferson County could get up to .5″ while downtown will probably get a dusting. North of the Ohio River…little to nothing.
In the Louisville area, snow is likely to begin about 3-4 A.M. and probably be over around 7-8 A.M. Any accumulations will be on grassy areas. Roads should be wet, but icy conditions are likely on some bridges and overpasses.
As the upper trough moves eastward tomorrow, a (probably) weak Alberta Clipper will run southeastward along the backside of the trough. Models are projecting another area of light snow with the clipper and put us in its projected path. I’ll check back on that tomorrow.
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