North Idaho flooding possible from snow melt-off
Cameron Rasmusson | Hagadone News Network | UPDATED 14 years, 2 months AGO
SANDPOINT - Bonner County residents will want to take care if the Panhandle heats up to summer temperatures too quickly.
With snow packs at their highest levels in years, meteorologists are worried that too sudden a temperature shift could cause problems for residents living near brooks, streams and rivers.
"Anything that doesn't have a natural outlet could have the potential for flooding," National Weather Service hydrologist Katherine Rowden said.
The spring months have contributed to a substantial snow pack in higher elevations. Between low temperatures and high precipitation, the spring has offered few opportunities for gradual melt-off.
Bob Howard, director of Bonner County Emergency Management, suggested that residents around Priest River, Priest Lake, Pack River and anyone living near one of Bonner County's many mountain streams keep a close eye on water levels and temperature forecasts. If conditions worsen, BCEM is prepared to help residents with sandbags and other assistance.
"It all depends on the rate of the melt-off," Howard said. "People should at least prepare for high water if they live near a stream or river."
Sandpoint residents probably won't have much to fear from Lake Pend Oreille. Rowden said that only a very high volume of snow melt-off would cause any kind of problem. The lake level is predicted to remain at 2055 feet for the foreseeable future. According to the National Weather Service, minor flooding isn't expected until the level increases to 2063.5 feet. Major flooding only becomes a concern when that number jumps to around 2069 feet.
"It would have to get pretty high to affect homes," Rowden said.
However, recreationalists eager to kick-start the boating season will want to watch for woody debris swept into the lake from melt-off. Both Rowden and Howard warned that the debris can cause serious damage to water vessels.
Residents can also contact BCEM at 265-8867.
"It's happened in the past," Howard said. "Boaters needs to be very cautious."
If flooding becomes an issue, drivers should also be alert when traveling on roads near creeks and rivers.
Despite a temperature increase slated for the week, weather officials aren't yet nervous. The boost should be modest enough to prevent serious issue.
If temperatures jump more dramatically, vulnerable residents should follow Federal Emergency Management Agency guidelines by elevating the furnace, water heater and electric panel, installing check valves in sewer traps and sealing the basement with waterproof materials.
"Just be prepared for anything," Howard said.
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