Weather Alerts for Susitna Valley

Issued by the National Weather Service

       Flood Advisory              Flood Advisory              Flood Advisory      

Avalanche Warning  AVALANCHE WARNING   Avalanche Warning
SUSITNA VALLEY

Areas Affected:
Anchorage - East Turnagain Arm - Western Prince William Sound
Effective: Sat, 1/11 6:40pm Updated: Sun, 1/12 7:10pm Urgency: Unknown
Expires: Mon, 1/13 3:00am Severity: Unknown Certainty: Unknown

 
Details:
SABAFC

The following message is transmitted at the request of the
Chugach National Forest Avalanche Center.

...THE CHUGACH NATIONAL FOREST AVALANCHE INFORMATION CENTER HAS
ISSUED AN AVALANCHE WARNING FOR THE FOLLOWING AREAS: CHUGACH STATE
PARK, GIRDWOOD, PORTAGE, TURNAGAIN PASS, SUMMIT LAKE, MOOSE PASS,
AND SEWARD FROM 3AM SUNDAY THROUGH 3AM MONDAY...

* WHAT...The backcountry avalanche danger is HIGH. Very dangerous
avalanche conditions exist.

* WHERE...For the Western Chugach and Kenai Mountains in and
around Chugach State Park, Girdwood, Portage, Turnagain Pass,
Summit Lake, Lost Lake, and Seward.

* WHEN...In effect Sunday 3:00 AM AKST through Monday 3:00 PM
AKST.

* IMPACTS...Heavy snowfall and strong winds will create widespread
areas of unstable snow. Both human-triggered and natural large
avalanches are likely. Debris from avalanches above may run into
valley bottoms. Avalanche conditions will remain very dangerous
immediately after the snow finishes.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in avalanche
terrain is NOT recommended. Backcountry travelers should stay
off of...and out from underneath...slopes steeper than 30
degrees. Avalanches may run long distances.

Similar avalanche danger may exist outside the coverage area of
this or any avalanche center.

For more information visit cnfaic.org.

High Wind Warning  HIGH WIND WARNING   High Wind Warning
SUSITNA VALLEY

Areas Affected:
Northern Denali Borough - Eastern Alaska Range North of Trims Camp
Effective: Sun, 1/12 11:03am Updated: Sun, 1/12 7:10pm Urgency: Expected
Expires: Mon, 1/13 3:00am Severity:  Severe  Certainty: Likely

 
Details:
* WHAT...South winds 40 to 60 mph with gusts up to 80 mph expected.

* WHERE...Eastern Alaska Range North of Trims Camp and Northern
Denali Borough.

* WHEN...Until 3 AM AKST Monday.

* IMPACTS...High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles.

Information:
People are urged to secure loose objects that could be blown around
or damaged by the wind.

Flood Advisory  FLOOD ADVISORY   Flood Advisory
SUSITNA VALLEY

Areas Affected:
Anchorage - East Turnagain Arm - Matanuska Valley
Effective: Sun, 1/12 1:51pm Updated: Sun, 1/12 7:10pm Urgency: Expected
Expires: Mon, 1/13 12:00pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Urban and small stream flooding caused by excessive
rainfall and snow melt at lower elevations with frozen ground.

* WHERE...The following areas, Anchorage, East Turnagain Arm,
Matanuska Valley and Western Prince William Sound.

* WHEN...Until noon AKST Monday.

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

* ADDITIONAL DETAILS...
- At 143 PM AKST, Moderate to Heavy rain has fallen at lower
elevations from the Mat-Su Valley down through the southern
Kenai Peninsula overnight and into Sunday. This combined with
frozen ground is causing ponding and localized flooding along
roads and low lying areas.

Localized flooding has been reported in Palmer, areas of
Anchorage and near Seward Harbor.

Small streams in the area may also experience minor flooding
with ice still intact in many areas.  No flooding is expected
along large Rivers.

A small landslide was report and cleared from the Lowell
Point Road Sunday morning. Additional localized landslides
are possible at lower elevations.
- http://www.weather.gov/safety/flood

- If you live near or along area creeks and streams stay alert and
be prepared to take action.
- Storm drains should be kept clear of debris as much as possible.
- Be aware of surroundings and avoid driving on flooded roads if
possible.

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

Flood Advisory  FLOOD ADVISORY   Flood Advisory
SUSITNA VALLEY

Areas Affected:
Western Kenai Peninsula - Western Prince William Sound
Effective: Sun, 1/12 1:51pm Updated: Sun, 1/12 7:10pm Urgency: Expected
Expires: Mon, 1/13 12:00pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Urban and small stream flooding caused by excessive
rainfall and snow melt at lower elevations with frozen ground.

* WHERE...The following areas, Anchorage, East Turnagain Arm,
Matanuska Valley and Western Prince William Sound.

* WHEN...Until noon AKST Monday.

* IMPACTS...The primary impacts will be along roadways and low lying
areas due to frozen ground, blocked culverts, and drainage ditches.

* ADDITIONAL DETAILS...
- At 143 PM AKST, Moderate to Heavy rain has fallen at lower
elevations from the Mat-Su Valley down through the southern
Kenai Peninsula overnight and into Sunday. This combined with
frozen ground is causing ponding and localized flooding along
roads and low lying areas.

Localized flooding has been reported in Palmer, areas of
Anchorage and near Seward Harbor.

Small streams in the area may also experience minor flooding
with ice still intact in many areas.  No flooding is expected
along large Rivers.

A small landslide was report and cleared from the Lowell
Point Road Sunday morning. Additional localized landslides
are possible at lower elevations.
- http://www.weather.gov/safety/flood

- If you live near or along area creeks and streams stay alert and
be prepared to take action.
- Storm drains should be kept clear of debris as much as possible.
- Be aware of surroundings and avoid driving on flooded roads if
possible.

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

Flood Advisory  FLOOD ADVISORY   Flood Advisory
SUSITNA VALLEY

Areas Affected:
Western Kenai Peninsula
Effective: Sun, 1/12 1:27pm Updated: Sun, 1/12 7:10pm Urgency: Expected
Expires: Mon, 1/13 12:00pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Flooding caused by an ice jam and recent rainfall continues.

* WHERE...The Anchor River near Anchor Point Road Downstream Of The
Old Sterling Highway And The Anchor River State Recreation Area.

* WHEN...Until noon AKST Monday.

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

* ADDITIONAL DETAILS...
- At 123 PM AKST, the public reported high water levels due to
an ice jam in place exacerbated by recent rainfall.
- http://www.weather.gov/safety/flood

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

High Surf Advisory  HIGH SURF ADVISORY   High Surf Advisory
SUSITNA VALLEY

Areas Affected:
Bristol Bay
Effective: Sun, 1/12 3:39pm Updated: Sun, 1/12 7:10pm Urgency: Expected
Expires: Mon, 1/13 6:00am Severity: Minor Certainty: Likely

 
Details:
* LOCATION...Bristol Bay.

* WAVES AND SURF...Water levels as high as 5 feet above the
normal highest tide line.

* TIMING...Most locations around Bristol Bay will experience an
additional high tide with elevated water levels. The high tide
is forecast around midnight tonight into the early morning hours
on Monday. Near Togiak, sustained elevated water levels and high
surf are possible this evening through Monday morning.

* IMPACTS...High surf and localized beach erosion are expected
along the immediate shoreline.

Information:
A high surf advisory means that high surf will affect beaches in
the advisory area, producing rip currents and localized beach
erosion.

Winter Weather Advisory  WINTER WEATHER ADVISORY   Winter Weather Advisory
SUSITNA VALLEY

Areas Affected:
Copper River Basin
Effective: Sun, 1/12 2:41pm Updated: Sun, 1/12 7:10pm Urgency: Expected
Expires: Mon, 1/13 9:00am Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...Snow, blowing snow, freezing rain, and rain. Freezing
rain on top of cold, snow-covered roads. Heavy snow closer to
Thompson Pass and along the Glenn Highway corridor west of
Glennallen. Total snow accumulation of 6 to 12 inches for the
Glenn Highway corridor and 12 to 24 inches possible toward
Thompson Pass.

* WHERE...The southern to western portions of the Copper River
Basin, including the Richardson Highway toward Thompson Pass
and the Glenn Highway west of Glennallen to around Chickaloon.

* WHEN...Until 9 AM AKST Monday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...A wintry mix of precipitation is occurring
along the Richardson Highway south of the Edgerton Highway south
to Thompson Pass. Precipitation will be heavy at times through
Monday morning. For the Glenn Highway corridor west of
Glennallen the heaviest snow is occurring now and will taper off
later this afternoon into the evening.

Information:
Slow down and use caution while traveling.

For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

Special Weather Statement  SPECIAL WEATHER STATEMENT   Special Weather Statement
SUSITNA VALLEY

Areas Affected:
Western Kenai Peninsula
Effective: Sun, 1/12 12:42pm Updated: Sun, 1/12 7:10pm Urgency: Expected
Expires: Mon, 1/13 7:00am Severity:  Moderate  Certainty: Observed

 
Details:
Another round of strong winds are expected to develop across the
Western Kenai Peninsula later this evening following gusty
conditions this morning. Gusts as high as 55 mph will be possible,
especially along the coast from Homer northward to Nikiski, with
the strongest winds developing after 9pm and lingering through 6am
AKST.

People are urged to secure loose objects that could be blown
around or damaged by the wind. Prepare for the possibility of
power outages. Use caution if you must drive.



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