Weather Alerts for Lower Kuskokwim Valley

Issued by the National Weather Service

       Flood Advisory      

Coastal Flood Advisory  COASTAL FLOOD ADVISORY   Coastal Flood Advisory
LOWER KUSKOKWIM VALLEY

Areas Affected:
Kuskokwim Delta
Effective: Sat, 9/14 3:30pm Updated: Sun, 9/15 3:55pm Urgency: Expected
Expires: Mon, 9/16 1:00am Severity: Minor Certainty: Likely

 
Details:
* LOCATION...Along the Kuskokwim Delta coast from the mouth of
the Kuskokwim River to Newtok, including the communities of
Kongiganak, Kwigillingok, Kipnuk, Tununak, and Newtok.

* COASTAL FLOODING...Water levels as high as 2 to 5 feet above
normal highest tide around time of high tides on Saturday and
Sunday.

* TIMING...The exact timing of highest water levels and flood
potential will coincide with high tides, which will vary from
location to location, but for most locations will be mid morning
through early afternoon. For Newtok, where tidal cycles are
influenced by the Ninglick River, there will be a peak in water
levels midday Sunday, then another late Sunday evening into the
overnight hours.

* IMPACTS...Coastal erosion and minor flooding of low lying areas.

* ADDITIONAL DETAILS...Water levels for most areas peaked late
this morning with high tide. A higher peak is expected for
Sunday morning's high tide, especially for west coast
communities such as Kipnuk and Newtok. Winds will strengthen
this evening, with southwesterly gusts as high as 45 mph
expected overnight tonight through Sunday morning. Winds will
diminish and water levels will fall on Monday.

Information:
A coastal flood advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.
Take action to protect property by moving items to higher ground
and away from water. Stay tuned to forecast updates.

Flood Advisory  FLOOD ADVISORY   Flood Advisory
LOWER KUSKOKWIM VALLEY

Areas Affected:
Kuskokwim Delta
Effective: Sat, 9/14 3:29pm Updated: Sun, 9/15 3:55pm Urgency: Expected
Expires: Sun, 9/15 4:00pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Minor flooding caused by storm surge along the coast and
winds backing up flow along the Lower Kuskokwim River is likely.

* WHERE...Along and near the lower Kuskokwim River from Bethel to
the mouth of the Kuskokwim River, related tributaries and low
lying areas including: Bethel, Napakiak, and nearby Tundra
villages.

* WHEN...Until 400 PM AKDT Sunday.

* IMPACTS...Minor flooding of low-lying areas is likely during times
of high tide on Sunday. River bank erosion is also possible.

* ADDITIONAL DETAILS...
- At 317 PM AKDT, water levels have peaked with high tide today
and are falling along the Lower Kuskokwim River. However,
southwesterly winds across the Kuskokwim Delta will
strengthen this evening and peak overnight tonight through
Sunday morning with gusts as high as 45 mph. The strong
persistent winds off the Bering Sea are expected to lead to
higher water levels and an increased chance of minor flooding
during time of high tide on Sunday.
- Water levels look lower than what was observed during the
August 18 through August 19 flood event. Thus, flood impacts
do not look like they will be as severe as they were during
the August storm.
- Though high water and possible minor flooding is expected at
most villages along the lower Kuskokwim river from Bethel
downriver during this timeframe, Napakiak has historically
experienced the most severe impacts in this region during up
river surge events. Tuntutuliak is also favored for flooding
in this scenario.
- 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.



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