www.triplicate.com/news/story.cfm?story_no=6258 -
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Published on: 10/20/2007
Last Visited: 10/24/2007
"The Smith is a very responsive river," said Mel Nordquist, science and operations officer for Eureka National Weather Service."You dump rain, and it will go up."
But even a 17-foot rise in the river, measured from a gauge in Jedediah Smith Redwoods State Park, wasn't enough to reach the minimum water level that warrants a heightened watch for floods.The river would have had to rise another 5 feet before flooding would be a concern, Nordquist said.
The story is similar at other points on the Smith River.At Dr. Fine Bridge, where U.S. Hwy. 101 crosses the river, the water rose nearly 14 feet.The river level reached about 28 feet, but it would take an additional 5-foot rise to cause flooding.
From his data collection, Nordquist estimated it would take a rainfall of 6 to 9 inches,under similar conditions of an early-season rain and low river level,to cause the Smith River to flood.
Thursday's storm was significant for this time of year, but it won't be noted in the books as breaking any records, he said.
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It's tempting to attribute this wetter-than-usual forecast to La Niña,which is occurring now,but there is too much variation in this natural phenomenon to make this connection, Nordquist said.
Del Norte County is on the edge of the Pacific Northwest, which typically is more wet during La Nina periods.But it's not correct to attribute major floods or heavy rainfall in this area to either El Niño or La Niña, because these weather events also occur when neither phenomena is taking place.
"The fact is, there are no direct climate correlations for this area to El Niño or La Niña," Nordquist said.