A springtime storm system could bring widespread rain to Southeast Idaho Saturday night through early Tuesday morning. Accordingly, the National Weather Service has issued a Flood Watch for portions of Southeast Idaho from Saturday evening through late Monday night for small stream and low-land flooding caused by rain fall and rapid snowmelt. Snow levels Saturday evening will begin fairly high near 8500 feet then lower by Sunday afternoon to about 6500 feet and by Monday to around 5500 feet. Total liquid equivalent precipitation amounts to one and a half inches are possible in the higher elevations around Bear Lake northward to Driggs, Ashton and the upper reaches of the Henry’s Fork River.Rain and warm temperatures will combine with melting snow in the mountains to accelerate run off and potential for flooding on many small streams. The NWS in Pocatello has issued a Flood Watch for Cache Valley (Idaho portion), Caribou highlands, upper Snake highlands and Wasatch mountains (Idaho portion) from late Saturday night to early Monday morning.
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