Wednesday, September 11, 2013

Weather- Washington Cascades- Extended

Issued 9-11-2013
Dry and warm conditions will prevail through at least this Friday. Then starting early next week and continuing probably through September 24 we have a trough of low pressure that forms off our coast. This trough will remain there through September 24 and probably beyond. With this trough we can expect above normal precipitation for the mountains and below normal temperatures.

500 mb (18,000 feet) map show a trough on Sept 20

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