Headed out west this afternoon, to the rarely visited state of Idaho. Rarely visited by this site, anyway.
At 556PM, MT, Lewiston was reporting clear skies with a temperature of 78 degrees. A vast area of low pressure over western Wyoming was developing fairly widespread instability across the northern Rockies, including thunderstorms moving counterclockwise throughout the region. There were a few cells over the center of the state, east of Lewiston that were moving westward towards the city.
The upper level trough will pivot slowly towards the Plains, while the upper level low dig south into the southern Plains by early next week. As a result of these machinations, thunderstorms will become more infrequent in the northern Rockies, but Canadian and north Pacific air will continue to spill into the Idaho Chimney for a few more days, meaning Memorial ay will also be filled with clouds and rain.
Tomorrow – Scattered clusters of thunderstorms, High 78, Low 55
Memorial Day – Scattered showers, High 77, Low 55
TWC: Tomorrow – Partly cloudy, High 83, Low 56
Memorial Day – Partly cloudy, High 79, low 58
AW: Tomorrow – Intervals of clouds and sunshine High 81, Low 54
Memorial Day – Variable clouds with a couple of showers and a thunderstorm, mainly later High 77, low 56
NWS: Tomorrow – Mostly sunny, (PM storms), High 81, Low 53
Memorial Day – A 20 percent chance of showers and thunderstorms after 11am. Partly sunny High 78, Low 57
WB: Tomorrow – Sunny in the morning…Becoming partly cloudy (PM Storms). High 82, Low 54
Memorial Day – Mostly cloudy. A chance of rain showers in the morning…Then a chance of showers and thunderstorms in the afternoon. High 78, Low 57
WN: Tomorrow – Mostly Sunny with Isolated Storms High 82, Low 54
Memorial Day – Partly Cloudy with Isolated Storms High 79, Low 55
FIO: Tomorrow – Partly cloudy starting in the evening. High 76, Low 52
Memorial Day – Mostly cloudy throughout the day.High 74, Low 54
Not everyone wants the showers in Lewiston, and hopefully there is plenty of blue sky for any northern Idaho cookouts. Here is the radar, showing storms moving towards Lewiston.