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Public Information Statement - River Forecast Center 

Anchorage


156
NOAK48 PAFC 091951
PNSAFC
AKZ101-100800-

Public Information Statement
National Weather Service Anchorage AK
1151 AM AKDT Fri Apr 9 2021

...Anchorage International Airport Climate Highlights for March
2021...

...4th Deepest Average Snow Depth In March...
...5th Consecutive March With Above Average Snow Depth...
...8th Coldest Monthly High of 40 Degrees...
...10th Coldest March...
...Coldest March Since 2017...
...11th Wettest March...
...15th Largest Number of Days With Measurable Snow...
...18th Snowiest March...

The period of record includes 69 Marches.

...Temperature...

March 2021 was the 10th coldest March on record with an average
temperature of 19.2 degrees. This is 7.4 degrees below the normal
of 26.6 degrees.

The average high in March was 27.3 degrees, which was 6.6 degrees
below the normal of 33.9 degrees. The average low was 11.1
degrees, which was 8.1 degrees below the normal of 19.2 degrees.

March 2021 was the coldest March since 2017. March 2021 was 3.1
degrees colder than January 2021. Climatologically, January is the
coldest month.

March`s average low of 11.1 degrees is the precise normal low of
a typical January.

March 2021 was the second month in a streak of 2 consecutive
months with below average monthly temperatures.

27 days in March had below average temperatures.
1 day in March had normal temperatures (within 1/2 degree).
3 days in March had above average temperatures.

0 days in March were more than 5 degrees above the daily normal.
19 days in March were more than 5 degrees below the daily normal.
12 days in March were more than 10 degrees below the daily normal.
2 days in March were more than 15 degrees below the daily normal.

The most above normal day in March occurred on the 10th, which
was 1.6 degrees warmer than the daily normal.

The most below normal days in March occurred on both the 13th and
the 19th, which were both 17.6 degrees colder than the daily
normal.

The warmest daily high in March occurred on the 30th, when the
high reached 40 degrees. This ties 1997 and 1971 for the 8th
coldest monthly high in March. The average monthly high in March
is 44 degrees.

The coldest daily low in March occurred on the 13th when the low
dropped to 3 below. This ties multiple years for the 23rd coldest
monthly low in March. This was the warmest March monthly low
since 2019. The normal monthly low for March is 0 degrees.

March had 1 day with highs of 40 or more. Average: 7 days.
March had 6 days with highs above freezing. Average: 18 days.
March had 28 days with highs of 20 or more. Average: 29 days.

March had all 31 days with lows of 32 and colder. Average: 29 days.
March had 24 days with lows of 19 and colder. Average: 16 days.
March had 14 days with lows of 9 above and colder. Average: 7 days.
March had 2 days with lows below zero. Average: 2 days.

...Precipitation...

March 2021 was the 11th wettest March on record, with 1.00 inches
of precipitation measured for the month. The normal precipitation
in March is 0.60 inches. Thus, March had 167% of its normal
precipitation.

The wettest day in March was on the 1st, with 0.32 inches of
precipitation measured.

March 2021 was the driest March since 2019.

15 of 31 days in March had a trace or more of precipitation.
9 days had measurable precipitation.
4 days had 1/10 inch or more of precipitation.
2 days had 1/4 inch or more of precipitation.

...Snowfall...

March 2021 was the 18th snowiest March on record with 13.5 inches
of snow measured during the month. The normal snow in March is
9.9 inches. Thus, March had 136% of its normal snowfall.

March 2021 was the least snowiest March since 2019.

The snowiest day in March 2021 occurred on the 15th, when 4.1
inches of snow were measured.

15 of 28 days in March recorded a trace or more of snowfall.
9 of those days recorded measurable snowfall.
4 days recorded 1 inch or more of snowfall.
3 days recorded 2 inches or more of snowfall.
1 day recorded 4 inches or more of snowfall.

March 2021 tied multiple years as the 14th largest number of days
in March with measurable snowfall.
March 2021 tied multiple years as the 11th largest number of days
in March with 1 inch or more of snowfall.

...Snow Depth...

March 2021 had the 4th deepest average snow depth for March, with
26.2 inches of average snow depth measured. This was also the
8th deepest monthly average snow depth of any month on record.

Top 5 Deepest Average Snow Depths in March
--------------------------
1) 32.6 inches- 2012
2) 29.2 inches- 1959
3) 27.3 inches- 1995
4) 26.2 inches- 2021***
5) 25.0 inches- 2004

Top 10 Deepest Average Snow Depths of All Months
----------------------------
1) 32.6 inches- March 2012
2) 30.2 inches- February 2012
3) 29.2 inches- March 1959
4) 29.0 inches- February 1956
5) 28.3 inches- February 1992
6) 27.3 inches- March 1995
7) 26.9 inches- January 1956
8) 26.2 inches- March 2021***
9) 25.6 inches- January 1967
10) 25.6 inches- February 1995

March 2021 was the 5th consecutive March with an average snow
depth greater than the normal March snow depth of 11.4 inches.

...Snow Season...

67.8 inches of snow have been measured for the snow season
through the end of March.

The normal snow season snow through the end of March is 70.2
inches. Anchorage has had 97% of its normal snow season snowfall
so far, and is 2.4 inches below normal for snow season snowfall
through the end of March.

Snow Season 2020-2021 is the 33rd snowiest snow season through
the end of March. This is up 7 places from the end of February.

...March 2021 vs. March 2020...

March 2021 was colder, drier, and less snowy than March 2020.

Temperature: 19.2 degrees in 2021 vs. 21.5 degrees in 2020.
Precipitation: 1.00 inches in 2021 vs. 1.42 inches in 2020.
Snowfall: 13.5 inches in 2021 vs. 17.0 inches in 2020.
Snow Season: 67.8 inches in 2020-2021 vs. 83.6 inches in 2019-2020.

...Daily Records Set in March 2021...

Type............Date...New Record....Old Record (Year)

Precipitation...01st...0.32 inches...0.28 inches (2020)

...Daily Records Count for 2021 (Change) [Most Recent Previous]...

High Maximum....0 [October 3, 2020]
High Minimum....0 [October 7, 2020]
Low Maximum.....0 [November 8, 2015]
Low Minimum.....0 [May 30, 2017]
Precipitation...2 [March 1, 2021]
Snowfall........0 [December 19, 2020]

...Climate Highlights for April 2021...

Normal High: 44.5 degrees.
Normal Temperature: 36.8 degrees.
Normal Low: 29.1 degrees.
Normal Precipitation: 0.47 inches. - Driest Month
Normal Snowfall: 4.0 inches.

Warmest April: 43.5 degrees average temperature (2016).
Warmest Day: 69 degrees on April 29, 2005.
Coldest April: 26.8 degrees average temperature (1972).
Coldest Day: 4 below degrees on April 2, 1985.
Wettest April: 1.91 inches (1977).
Wettest Day: 0.97 inches on April 25, 2008.
Driest April: Trace (1969).
Snowiest April: 30.8 inches (2008).
Least Snowiest April: 0 inches (2016).
Snowiest Day: 15.5 inches on April 25, 2008.

...Calendar of Astronomy and Federal Holidays...

Beginning of the Month Daylight: 13 hours 26 minutes.
Third Quarter Moon: April 4th at 2:02am.
First Day With More than 14 Hours of Daylight: April 7th.
First Sunset after 9pm: April 7th.
First Sunrise before 7am: April 8th.
New Moon: April 11th at 6:30pm.
First Day with More than 15 Hours of Daylight: April 18th.
First Quarter Moon: April 19th at 10:58pm.
Full (Pink) Moon: April 26th at 7:31pm.
First Sunrise before 6am: April 28th.
First Day with More than 16 Hours of Daylight: April 29th.
Sunset at 10pm: April 29th.
End of the Month Daylight: 16 hours 11 minutes.
Total Monthly Daylight Gain: 2 hours 45 minutes.

Next Eclipse Viewable in Anchorage:
Total Lunar Eclipse- May 26, 2021 at 3:18am.

$$

Wegman

$$


Fairbanks

Juneau


000
NOAK47 PAJK 012031
PNSAJK
AKZ028-082045-

Public Information Statement
National Weather Service Juneau AK
1231 PM AKDT Thu Apr 1 2021

...Public Information Statement...

On May 1, 2021, the National Weather Service (NWS) Forecast
Office in Juneau, Alaska and the Alaska-Pacific River Forecast
Center (APRFC) will be adding flood stages for the Chester Lake Dam
near Metlakatla.

Flood stages were set from different response levels from the emergency
action plan for Chester Lake Dam.

For the Chester Lake Dam near Metlakatla:

ActionMinorMajor
StageFlood Stage Flood Stage

Previous:None NoneNone
New:856.0 ft857.3 ft858.0 ft


Comments and questions should be directed to:
Aaron.jacobs@noaa.gov.

$$