Gusty winds over 40mph and in some cases approaching 50mph will begin to diminish later this evening, and lighter winds and clear skies will lead to frosty, and possibly record lows by tomorrow morning.
The winds today were caused by a tight pressure gradient between potent low pressure over South Dakota, and high pressure building in from the Pacific Northwest. As the low moves eastward toward the western Great Lakes, the pressure gradient will relax, and clear skies, dry air, and light winds will allow temperatures to rapidly fall later tonight. The coldest readings will occur over portions of the Panhandle and the Platte River Valley where lows in the lower 30’s are likely. For this reason, a Frost Advisory is in effect from 4AM to 10AM CT tomorrow. The record low for North Platte is 35 degrees set way back in 1898, so if the temperature reaches the forecasted low of 33, a new record will be established.
The high will then move right over Nebraska Tuesday before moving to the east later in the day. This will eventually allow winds to turn to a more southerly direction, allowing warmer air to begin flowing northward into Greater Nebraska. Highs Tuesday will reach the upper 70’s under bright, sunny skies with a light breeze.
By Wednesday, southerly winds will allow a bit more moisture to work into the region, and a frontal system nearby could spark some isolated thunderstorms, especially over northern areas which will be closer to disturbances passing through the Northern Plains. Skies will be partly to mostly cloudy from Wednesday through Friday, and the chance for isolated storms will continue through Friday with highs mainly in the lower 80’s.
Mike
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