After a very warm day today, and after two weeks without rainfall, we will cool off and see some showers and thunderstorms from this evening through the weekend.
The circulation around high pressure over the central Mississippi Valley sent very warm southerly winds into Greater Nebraska today, and highs reached to near record territory around North Platte with temperatures within one degree of the record of 89 set in 1893. However, a cold front attached to an area of low pressure over south-central South Dakota is pressing eastward, and will move through the region overnight. This front is already setting off showers and thunderstorms, and at 4pm a severe thunderstorm was located over southeastern Garden County moving northeast, and additional showers and storms will affect Greater Nebraska through the evening. Otherwise, skies will be partly cloudy with lows in the 40’s.
The front will be to our southeast by Saturday morning and will ensure much cooler temperatures this weekend. Additionally, an upper-level low that has plagued the West all week long is now located over Wyoming, and will move slowly east-southeast over Nebraska through the weekend. This feature will produce enough instability for showers and perhaps a thunderstorm to occur at just about any time this weekend. While the weekend will in no way be a washout, and while we will likely see some sunshine, be prepared to dodge some precipitation from time to time. Skies will be partly sunny Saturday with highs around 70. Sunday will be mostly cloudy with the continued shower threat, and it will be much cooler with highs only in the 60’s.
The threat of lingering showers will continue on Columbus Day Monday, and with partly sunny skies highs should rebound a bit to around 70.
Cooler temperatures will return Tuesday behind another cool front, and there could be some frost or even a freeze Tuesday night into Wednesday morning before temperatures become milder at the end of the week.
Mike
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