Weather Washington Cascades- Extended Outlook

Forecast models continue to bring a trough of low pressure over us at times and this is the pattern for much of the period through July 22. Thus we get a brief ridge of high pressure for a brief period and mild and dry conditions (like Tuesday July 9)  and then a trough of low pressure drops down from the northwest (Wednesday July 10). Thus below normal temperatures and above normal precipitation will be the rule.

500 mb (18,000') for the period 7-16 to 7-22

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