Flood Advisory

Flood Advisory
National Weather Service Anchorage AK
434 PM AKDT Sun Jun 22 2025

AKZ745>747-250600-
/O.EXT.PAFC.FA.Y.0017.000000T0000Z-250625T0600Z/
/00000.N.SM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western Susitna Valley AK-Southern Susitna Valley AK-Central
Susitna Valley AK-
434 PM AKDT Sun Jun 22 2025

...FLOOD ADVISORY FOR SNOWMELT NOW IN EFFECT UNTIL 10 PM AKDT
TUESDAY...

* WHAT...Flooding caused by snowmelt continues.

* WHERE...the Yentna and Skwentna Rivers and other nearby
  tributaries.

* WHEN...Until 1000 PM AKDT Tuesday.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
  - At 424 PM AKDT, temperatures across the region have moderated
    some, but snowmelt at higher elevations of the Western Alaska
    Range is still leading to higher water levels across much of
    the Susitna Valley, especially along the Yentna and Skwentna
    Rivers. This will cause the minor flooding in low lying areas
    along these rivers to persist through Tuesday evening. River
    levels will be highest during the late afternoon and evening
    hours in response to peak melting at the warmest time of day.
    The gradual cooling of temperatures should allow water levels
    to begin to fall by mid week.


  - For Skwentna River at Skwentna:
    At 10:00am the stage was 41.5 feet.
    Flood Stage is 42.0 feet.

    Impacts:
    At 41.5 feet: Water starts to flow over low spots on the road
    which is adjacent to an active slough.  There are five or so
    houses on this road including the Wx observers.
    At 43.5 feet: Water should start to encroach some houses
    located near the active slough on the east side of town.
    At 45.0 feet: There would be considerable bank erosion,
    including the east end of the runway.
    At 48.0 feet: Elevation of runway.
  - For Yentna River at Lake Creek:
    At 3:00pm the stage was 20.7 feet.
    Flood Stage is 20.5 feet.

    Impacts:
    At 20.5 feet: Anglers Inn & King Point Lodges will have water
    in several cabins.  (This roughly corresponds to a stage of
    42.1 at SKWA2 - Skwentna.)


    At 22.0 feet: McDougal`s, King Point, Anglers Inn, Wilderness
    Place, Lake Creek Lodge, 3-Rivers, and Cottonwood Resorts
    will have water in a number of cabins with water also
    encroaching the main lodge buildings.

    At 24.0 feet: Major flooding all along the river except for
    Bentalit and Northwood Lodges (which are actually on Fish
    Creek).  There should be considerable damage to fixed and
    moveable property.


  - For Yentna River near Yentna Station:
    At 3:00pm the stage was 21.0 feet.

  - Http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.

&&

LAT...LON 6146 15109 6149 15127 6165 15175 6196 15244
      6220 15223 6239 15181 6224 15100 6220 15076
      6218 15070 6195 15039 6189 15030 6182 15030
      6178 15033 6171 15051 6161 15084 6160 15085


$$

EZ

Flood Advisory
National Weather Service Anchorage AK
830 AM AKDT Sun Jun 22 2025

AKZ711-252000-
/O.NEW.PAFC.FA.Y.0018.250622T1630Z-250625T2000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lower Matanuska Valley AK-
830 AM AKDT Sun Jun 22 2025

...FLOOD ADVISORY IN EFFECT UNTIL NOON AKDT WEDNESDAY...

* WHAT...Flooding caused by snowmelt and channel shift.

* WHERE...Matanuska River near Butte, AK.

* WHEN...Until noon AKDT Wednesday.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
  - At 817 AM AKDT, Warm temperatures and bank erosion have led
    to high water breaking through the banks of the Matanuska
    River between the Old Glenn Highway and the River in the Maud
    Road area. Water levels are expected to be near peak levels
    Saturday evening and then very slowly recede over the next
    few days as temperatures drop and lessens the snow melt in
    the mountains upriver. However, since this is largely driven
    by new erosion along the riverbank, persons in this area
    should continue to monitor the
    situation.
  - For Matanuska River at Palmer/Butte:
    At 7:30am the stage was 24200.0 cfs.
    Forecast: A crest around 24400.0 cfs is expected around
    4:00pm Sunday.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.

&&

LAT...LON 6151 14904 6148 14920 6153 14919 6165 14911
      6155 14897


$$

Mitchell