Thunder98 Posted August 8, 2017 Report Share Posted August 8, 2017 Olympia averages 50.00" of precipitation a year while Seattle averages 37.49" a year. What causes the differences in precipitation amounts between Olympia and Seattle? Quote Link to comment Share on other sites More sharing options...
wx_statman Posted August 9, 2017 Report Share Posted August 9, 2017 Seattle is partially rain shadowed by the Olympics, Olympia is not. 2 Quote Link to comment Share on other sites More sharing options...
BLI snowman Posted August 9, 2017 Report Share Posted August 9, 2017 Rain shadowing from the Olympics. SW flow accounts for a large percentage of our region's heaviest rain events, and Seattle experiences much greater shadowing from that direction than Olympia since the Willapa Hills are so much lower. 1 Quote Link to comment Share on other sites More sharing options...
Thunder98 Posted August 9, 2017 Author Report Share Posted August 9, 2017 Rain shadowing from the Olympics. SW flow accounts for a large percentage of our region's heaviest rain events, and Seattle experiences much greater shadowing from that direction than Olympia since the Willapa Hills are so much lower.That is interesting Quote Link to comment Share on other sites More sharing options...
Front Ranger Posted August 9, 2017 Report Share Posted August 9, 2017 Olympia is the city of the gods. That is why it is better than lowly Seattle. 1 Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
Geos Posted August 9, 2017 Report Share Posted August 9, 2017 Rain shadowing from the Olympics. SW flow accounts for a large percentage of our region's heaviest rain events, and Seattle experiences much greater shadowing from that direction than Olympia since the Willapa Hills are so much lower. And moisture can flow in uninterrupted for the most part through the Chehalis Gap/Valley into Olympia. 1 Quote Mercer Island, 350 ft 2021-2022: 11.6", 02/21 2020-2021: 15.6" 2019-2020: ~10" 2018-2019 winter snowfall total: 29.5" 2017-2018: 9.0", 2016-2017: 14.0" Link to comment Share on other sites More sharing options...
WeatherArchive Posted August 10, 2017 Report Share Posted August 10, 2017 Does that mean Olympia has a better chance of thunderstorms from convection? 1 Quote Link to comment Share on other sites More sharing options...
dairyd Posted August 10, 2017 Report Share Posted August 10, 2017 TPW and radar returns from typical SW flow storm. You can see the rainshadow effect in the TPW isobars in nearly every storm that runs through the area from both the olympic peninsula and vancouver island. 1 Quote Link to comment Share on other sites More sharing options...
Thunder98 Posted August 14, 2017 Author Report Share Posted August 14, 2017 Olympia has gotten 0.11" of rain yesterday and Seattle has only got 0.02" yesterday. An example of the Olympic Mountains rainshadow? https://www.wunderground.com/history/airport/KOLM/2017/8/14/MonthlyCalendar.html?req_city=Olympia&req_state=WA&reqdb.zip=98501&reqdb.magic=1&reqdb.wmo=99999#calendar https://www.wunderground.com/history/airport/KBFI/2017/8/14/MonthlyCalendar.html?req_city=Seattle&req_state=WA&reqdb.zip=98101&reqdb.magic=1&reqdb.wmo=99999#calendar Quote Link to comment Share on other sites More sharing options...
Front Ranger Posted August 14, 2017 Report Share Posted August 14, 2017 Olympia has gotten 0.11" of rain yesterday and Seattle has only got 0.02" yesterday. An example of the Olympic Mountains rainshadow? https://www.wunderground.com/history/airport/KOLM/2017/8/14/MonthlyCalendar.html?req_city=Olympia&req_state=WA&reqdb.zip=98501&reqdb.magic=1&reqdb.wmo=99999#calendar https://www.wunderground.com/history/airport/KBFI/2017/8/14/MonthlyCalendar.html?req_city=Seattle&req_state=WA&reqdb.zip=98101&reqdb.magic=1&reqdb.wmo=99999#calendar A very weak example, yep. 1 Quote A forum for the end of the world. Link to comment Share on other sites More sharing options...
Thunder98 Posted August 15, 2017 Author Report Share Posted August 15, 2017 A very weak example, yep. Once the Pacific NW gets those Pineapple Express in the Fall and Winters then we could see much better examples then what I shown above. Quote Link to comment Share on other sites More sharing options...
George W. Bush Posted August 22, 2017 Report Share Posted August 22, 2017 Because I went to Olympia once. I don't remember going to seattle. By the way, I have returned. I apologize for depriving you of my greatness for a whole year. Quote "Some people look at me and see a certain swagger, which in Texas is called "walking"." -Me Link to comment Share on other sites More sharing options...
Thunder98 Posted September 18, 2017 Author Report Share Posted September 18, 2017 Olympia received 0.32" from storm #1 so far , while Seattle only had 0.06" of rain. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.