Rick ThomanMay 8
Spring river break-up on the big rivers in Alaska and the Yukon Territory is under way. No big problems so far. Details and the climate context of this year’s break-up in the latest from the Alaska and Arctic Climate newsletter. #akwx #ytwx #Spring2026 alaskaclimate.substack.com/p/spring-202...
Rick ThomanMay 8

Spring river break-up on the big rivers in Alaska and the Yukon Territory is under way. A little later than usual and so far, no major problems, though there's still a long way to go. Details and the climate context of this year’s break-up in the latest post from the Alaska and Arctic Climate newsletter. @Climatologist49

https://alaskaclimate.substack.com/p/spring-2026-river-break-up-to-may

#akwx #ytwx #Spring2026

Rick ThomanMay 7
Ice went out on the Yukon River at Dawson, Yukon Territory Tuesday afternoon. A few days later than average by recent standards, but would have been early prior to 1970. Data courtesy yukonriverbreakup.com #ytwx #Climate @[email protected] @[email protected] @[email protected]
Rick ThomanMay 7

Ice went out on the Yukon River at Dawson, Yukon Territory Tuesday afternoon (May 5). This is a few days later than average by modern standards but would have been earlier than usual prior to 1970. Data courtesy https://yukonriverbreakup.com/

@Climatologist49
#ytwx #Climate #Hydrology

Rick ThomanApr 6
March 2026 was exceptionally sunny over most of the Alaska, Yukon Territory and NWT in ERA5 reanalysis courtesy @[email protected]. For much of central Alaska there was more sunshine than in any March since 1979. Graphic courtesy @[email protected]. #akwx #ytwx #ntwx #Climate
Rick ThomanApr 5
Yukon Territory, Canada had the coldest March since at least 1950, easily exceeding 2007 and 1964. There is no significant long term trend in March average temps. Data from ERA5 reanalysis courtesy @[email protected]. #ytwx #Canada #Climate @[email protected] @[email protected]
Rick ThomanMar 22
First half of March average temperature departures from the 1991-2020 baseline for Alaska and vicinity based on ERA5 Land courtesy @[email protected]. Bristol Bay/Iliamna Lake area coldest relative to normal but central Interior & central Yukon Territory close behind. #akwx #ytwx #Climate
Rick ThomanFeb 2
The December and early January cold snap across Alaska and NW Canada may well turn out to be one of the coldest multi-week events of the 21st century. Lots of details in the latest from the Alaska and Arctic Climate newsletter. #akwx #ytwx #Arctic #Climate alaskaclimate.substack.com/p/alaska-and...
Rick ThomanFeb 2

The December and early January cold snap across Alaska and northwest Canada was impressive and may well turn out to be one of the coldest multi-week events of the 21st century. Lots of details in the latest post from the Alaska and Arctic Climate newsletter. @Climatologist49

https://alaskaclimate.substack.com/p/alaska-and-nw-canada-cold-snap-review

#akwx #ytwx #Climare #Winter2026 #cold

Rick ThomanJan 24
Seems unimportant in this moment, but if keeping up with environmental conditions in the North can bring you a calmer few minutes, here's an update on the status of the Arctic and Alaska and vicinity snowpack as of mid-January. #Arctic #akwx #ytwx #Snow alaskaclimate.substack.com/p/january-20...