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Alaska/Western Canada obs and discussion


patrick7032
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  • 2 years later...
18 minutes ago, lookingnorth said:

Anchorage, AK set their all-time record high of 89°F yesterday, and looks to get into the mid-80s for the next few days as well. Most of Alaska has been a good bit warmer than normal so far this summer.

Per NWS Anchorage, I think the official site (Ted Stevens airport) hit 90. Previous all time record high was 85...and, on average, Anchorage only hits 80 once every 4 years. 

This is crazy. 

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On 7/5/2019 at 11:02 AM, lookingnorth said:

Anchorage, AK set their all-time record high of 89°F yesterday, and looks to get into the mid-80s for the next few days as well. Most of Alaska has been a good bit warmer than normal so far this summer.

We were in Alaska in late May and it hit mid 70s every day essentially, and was bone dry. They were terrified of fires and they've already had many. Will be a long, rough summer for the NW which is incredibly dry and hot. 

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  • 1 year later...

An already impressive winter in interior Alaska is going out with a bang, with snow and cold.  2-day snowfall of 13.2" on April 3-4 in Fairbanks, which brought the snow depth to 40".  This is the highest snow depth since 1993.  Snow depth on 4/7/2021 was still 38", 2nd highest so late in the season (only 1991 was greater).  Could be a bad year for flooding and river ice break-up.

Fairbanks just set a new record for consecutive days under 40F:

(1) 179 days:  10/11/2020 to 4/7/2021 - still active

(2) 176 days:  10/3/1965 to 3/27/1966

(3) 171 days:  10/8/1994 to 3/27/1995 

With clear skies and fresh snow cover, Fairbanks dropped to -24 on 4/6/2021, which is the 3rd coldest temp on record so late in the season (-24 on 4/7/1986 and -32 on 4/10/1911).  It was even colder at some other sites:  -36 at Jim River DOT (Mile 138 Dalton Highway); -34 Norutak Lake RAWS; -33 Bettles.

There is an even colder airmass lurking for this upcoming weekend, where Fairbanks could hit -25 or -30.  Normal temps for this weekend are 40/16.  Per Rick Thoman:  "By several measures, the Utqiaġvik 00Z Thu RAOB records the coldest April low-level airmass on record (since 1948). Lowest 850mb temp -35.5C; lowest 1000-850mb thickness 1138 gpm; lowest 1000-500mb thickness 4803 gpm."

http://ak-wx.blogspot.com/2021/04/even-colder-on-way.html

http://ak-wx.blogspot.com/2021/04/extreme-cold-approaches.html

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Bettles reported a 6am AKDT temperature of -38F (-38.9C). This is a new record for Bettles for the month of April. Previous record was -37F (-38.3C) set April 7, 1986. Climate observations at Bettles since May 1944.

As expected, the Fairbanks 12Z upper air sounding showed the coldest April low-level airmass on record (since 1948): lowest 1000-500mb thickness 4857gpm; lowest 1000-850mb thickness 1174gpm; lowest 925mb temp -26.7C.

Nome airport low temp Friday morning of (at least) -20F (-28.9C) is not a daily record (-24F, -31.1C in 1924) but this is the latest in the spring with a temp of -20F or lower in 44 years: -21F on April 12, 1977.

http://ak-wx.blogspot.com/2021/04/arctic-blast.html

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RECORD EVENT REPORT
NATIONAL WEATHER SERVICE FAIRBANKS AK
159 AM AKDT SAT APR 10 2021

...RECORD LOW MINIMUM AND MAXIMUM TEMPERATURES SET AT FAIRBANKS
YESTERDAY...

FAIRBANKS RECORDED A LOW TEMPERATURE OF -27 DEGREES YESTERDAY.
THIS SHATTERS THE PREVIOUS DAILY RECORD OF -16 DEGREES SET IN
1911.
THE HIGH TEMPERATURE YESTERDAY WAS ONLY 3 DEGREES. THAT BREAKS
THE PREVIOUS DAILY RECORD FOR COLDEST HIGH TEMPERATURE OF 11
DEGREES SET IN 1911. YESTERDAY WAS ALSO THE LATEST IN THE SEASON
FOR A HIGH TEMPERATURE IN THE SINGLE DIGITS FOR FAIRBANKS ON
RECORD. THE PREVIOUS LATEST WAS APRIL 7TH IN 1966.

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