Notices by Rick Thoman (alaskawx@alaskan.social)

The tripod on the Tanana River at Nenana tipped over Saturday evening but Sunday morning it's still in place and clock is still running. The tripod needs to move 100 feet downriver in order to trip the clock. In the past 50 years the median break-up date is April 30. Image courtesy Nenana Ice Classic. #NenanaIceClassic #akwx #Spring2025 @Climatologist49

Not every Alaska wildfire season is big, but the frequency of multi-million acre seasons is about twice nowadays compared to 1950-2000. Historically at least, the wildfire season is short: nearly all the burning occurs late May through early August. As snowmelt proceeds and the ground dries out, the 2025 season will soon be upon us. Data from Alaska Interagency Coordination Center. @anisian @Climatologist49

#akwx #climate #wildfire

Downtown Naknek, #Alaska. April 15, 2025

How low was Southcentral Alaska's mid-winter snowfall? I've pulled together most of the available info from NOAA, USDA/NRCS and citizen science observations in the latest Alaska and Arctic Climate newsletter. @Climatologist49

https://alaskaclimate.substack.com/p/southcentral-alaskas-mid-winter-snow

#Alaska #Climate #Snow #Winter2025

Tanacross #Dene #Language #Alaska

ch’es̲h̲ǎan’ "golden eagle"
Ch’es̲h̲ǎan’ S̲ǎa’ "March" literally "golden eagle month"
ch’etthaayh "red-tailed hawk"
Ch’etthaayh S̲ǎa’ "April" literally "red-tailed hawk month"
ch’etthaayh ɬonaat’ax "the red-tailed hawk is flying around"

@ScoterD
@transitionalaspect

High temperatures (ºF) in and around Alaska on Saturday. Cold air packed up against the north side of the Brooks Range. Continued quite mild in Southcentral and southeastern Interior with a March 1st record high temp of 47F (8.3C) at Homer. #akwx #weather

As I kid I dreamed of working as a meteorologist for the National Weather Service in Alaska. Thanks to the timing of my birth, through good times and bad, I spent more than more than 30 years doing just that. Today, hundreds of similar dreams were shattered. To all of you, I am so sorry. #NOAA #Alaska

8pm AKST Thursday update on Bering Air flight 455 that went down Thursday afternoon.

Search is is concentrated between Nome and Solomon. Coast Guard C-130 is en route. Nome Search and Rescue has about 10 volunteers on snow machines searching the coast east of Nome. #Alaska

http://www.nomenugget.com/news/plane-missing-between-unalakleet-and-nome

So much happening weather and climate-wise around Alaska in January. Warmth, wind, no snow, lots of snow. Even some cold. And this is just what I could squeeze onto the graphic. #akwx #ExtremeWeather #Climate @Climatologist49

High temperatures (ºF) in and around Alaska on Friday. Incredible warmth. January record high temps at Tanana and Tok, Alaska and Old Crow, YT and daily record highs at half a dozen more sites. Note that many of the places plotted here do not have long term climate records. #akwx #weather

@Infoseepage The area of the cut is in 100 percent sea ice coverage and has been been for a couple months.

Here we go again:

Apparent fiber optic cable cut in the Beaufort Sea and, voila, Internet outages North Slope and northwest Alaska. #Alaska

Pan-Arctic view of 2024 average temperature departures from 1991-2020 baseline. For the Arctic (land and seas north of 60ºN) this was the third mildest calendar year on record: only 2016 and 2020 warmer. Nunavut, Canada had the second warmest year (exceeded only in 2010) and Iceland was the only land area even a bit cooler than normal. @Climatologist49 @cinderbdt

#Arctic #Climate

@EricFielding @Climatologist49 This is a Skew-T Log-P plot, so the line to the right is the air temperature and the line to left is the dew point. Labels on the left side are pressure in millibars. Labels on the bottom are °C.

@EricFielding @Climatologist49 Here's the Wednesday afternoon sounding from Fairbanks. Surface temp -30C, which is the lowest temperature in the atmosphere until 504mb (17,700 ft).

Sadly, so far the atmospheric carbon dioxide concentration is one of the most predictable climate change trends. Observed CO₂ Mauna Loa data from NOAA/Global Monitoring Laboratory. Ten-year forecast based on nothing but the recent trend. #ClimateChange

Breaking news: Nome up to 44F (6.7C) Wednesday morning is the highest temperature ever recorded in December. Climate observations at Nome since 1906. #akwx #Climate @Climatologist49 @Jdnome

From the National Hurricane Center Advisory at 7pm CDT Monday. Almost unbelievable strengthening. On 7pm Sunday advisory, NHC reported a central pressure of 981mb, so 84mb deepening in 24 hours. #Milton
@ingalls @BakerRL75

Tanacross #Dene #Language #Alaska

Wunenh Ch’et’ą̌ą’ Dit-tsiig "broadly, September lit. time when leaves turn yellow" In the upper Tanana valley this is more like late August to mid-September.
nén’ tenh k’et "October, lit. month of frozen ground"
noxɬuu "autumn, the time when the land freezes"
menh tadéetenh "the lake is freezing, ice is forming on the lake"

@ScoterD

October is the fastest warming month over much of the Arctic due to the loss of autumn sea ice, and that's driving changes in precipitation and snow. I take a look at these changes in the latest edition of the Alaska and Arctic Climate Newsletter.

Feel free to subscribe if you like. It's free and always will be.

@Climatologist49

https://alaskaclimate.substack.com/p/october-arctic-precipitation-changes

#akwx #Arctic #ClimateChange #Climate