tag:blogger.com,1999:blog-4572286363399496963.post3769741657621538293..comments2024-03-28T07:09:59.093-08:00Comments on Deep Cold: Alaska Weather & Climate: Yukon Frozen at DawsonRickhttp://www.blogger.com/profile/03946704894714514716noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-4572286363399496963.post-24263023311798944202020-02-28T09:22:56.019-09:002020-02-28T09:22:56.019-09:00I recall that event but the local Alaskans in the ...I recall that event but the local Alaskans in the article may not be convinced. It seems to me that the Yukon had some good forest fires in 2019 (?) perhaps due to dry condx: <br /><br />https://www.cbc.ca/news/canada/north/yukon-widlfire-season-2019-complex-1.5310233<br /><br />Gary<br /><br />NL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-64622837518738595762020-02-28T09:04:44.054-09:002020-02-28T09:04:44.054-09:00Thanks, I recall that fascinating episode that occ...Thanks, I recall that fascinating episode that occurred back in 2016. Nice story here:<br /><br />https://earthobservatory.nasa.gov/images/90116/river-piracy-in-the-yukon<br /><br />In earlier years I thought perhaps the loss of the Slims River might somehow explain the lack of ice at Dawson, but flows were not significantly reduced. The low flow in 2019 seems to be more related to low precipitation: "Even upstream of the influence of the Slims’ piracy, the Yukon was already near record low [in 2019]"<br /><br />Richard Jameshttps://www.blogger.com/profile/08313902028896263276noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-31305039621681301442020-02-28T08:55:25.568-09:002020-02-28T08:55:25.568-09:00More info on recent Yukon flow volume...is river p...More info on recent Yukon flow volume...is river piracy implicated? <br /><br />https://www.juneauempire.com/news/river-piracy-strikes-the-yukon/<br /><br />Gary<br /><br />NL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-8040855859208753092020-02-23T11:59:46.136-09:002020-02-23T11:59:46.136-09:00Might have been clearer so loss of water heat. Mig...Might have been clearer so loss of water heat. Might have been cloudy and snowy to help form surface ice crystals. And less precipitation plus lower water is another. Near shore ice generally freezes first then the ice pans formed and loosened by current get together to create a surface mat. Not sure what best promotes freezing in flowing waters. Complex algorithm no doubt. <br /><br />GaryNL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-68517886297393295382020-02-23T04:11:40.559-09:002020-02-23T04:11:40.559-09:00Yes, good question. I'll take a look, althoug...Yes, good question. I'll take a look, although I believe Dawson airport only reports 10 hours/day.<br />Richard Jameshttps://www.blogger.com/profile/08313902028896263276noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-6531041783743276192020-02-22T19:19:40.733-09:002020-02-22T19:19:40.733-09:00Richard what was the cloud cover during the freezi...Richard what was the cloud cover during the freezing event? Might be another factor.<br /><br />GaryNL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.com