Monday, June 1, 2020

Weather Washington Cascade- Extended Outlook

Starting Saturday June 6 and continuing for the week of June 8 we can expect troughs of low pressure that will drop down from the north at times. Thus most (all) of the forecast models bring above normal precipitation and below normal temperatures. I would not be surprised to see snow levels drop to 4000 to 5000 feet at times for next week June 8.

500 mb (18,000') for June 8, 2020


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Tuesday, May 19, 2020

Seattle Area Weather - Extended Outlook

For the period May 26 to June 1 forecast models are bringing an upper level ridge of high pressure in place. So dry and mild conditions will be the rule.

500 mb (18,000') map for May 26 to June 1


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Tuesday, May 12, 2020

Seattle Area Weather- Extended Outlook

Much of the period of today through Monday May 18 will feature below normal temperatures and above normal rainfall. Main reason for this pattern is we have a trough of low pressure that  will be off the Washington coast for much of the period. This pattern should continue through May 23

500 mb (18,000') fer May 18, 2020


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Tuesday, May 5, 2020

Seattle Area Weather - Extended Outlook

Expecting warm and sunny for this Friday (5-8-2020) through the upcoming weekend. Then by Tuesday or Wednesday (5-13-20) a trough of low pressure will drop down from the northwest to bring some cooling and chance of rain for parts of next week.

500 mb (18,00') for May 13, 2020 trough off our coast

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Wednesday, April 29, 2020

Seattle Area Weather: Extended Outlook

For the period May 4 to May 8 the Seattle should expect mild and dry conditions. Main reason for this is a ridge of high pressure is over the West Coast.

Average position of 500 mb map (18,000') for May 4 to May 8, 2020

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Tuesday, April 21, 2020

Seattle Area Weather- Extended Outlook

The general pattern from now through May 4 is above normal temperatures and above normal rainfall for the Seattle area. We will alternate between ridges of high pressure, which we have had recently to troughs of low pressure moving in like we will tomorrow April 22.

500 mb (18,000') average position 4-28-2020 to 5-4-2020

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Wednesday, April 15, 2020

Seattle Area Weather - Extended Outlook

We start to see some changes in the weather patterns starting this weekend as the ridge of high pressure moves out of the region. We will get some additional changes later next week with a trough of low pressure off our coast. The net impact will be above normal rainfall  especially  for April 22 to April 28 with temperatures near nomal

500 mb (18,000') for late Thursday April 23 trough of Washington Coast


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