Weather Alerts for Lower Kuskokwim Valley

Issued by the National Weather Service

Flood Warning  FLOOD WARNING   Flood Warning
LOWER KUSKOKWIM VALLEY

Areas Affected:
Lower Koyukuk Valley
Effective: Tue, 5/12 5:37pm Updated: Wed, 5/13 3:10am Urgency: Expected
Expires: Wed, 5/13 10:00pm Severity:  Severe  Certainty: Likely

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

* WHERE...Hughes.

* WHEN...Until 1000 PM AKDT Wednesday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying
and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS...
- At 533 PM AKDT, an ice jam remains in place on the Koyukuk
River near Hughes. Impounding water due to the ice jam has
caused water level rises, which has led to flooding of
properties in the lower areas of the community. Members of
the public and emergency managers report continued flooding
in low lying areas, including impacts to the airport,
residences, and school property.

- Riverwatch has reported that there has been some minor
degradation seen at the toe of the ice jam.
- http://www.weather.gov/aprfc

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
LOWER KUSKOKWIM VALLEY

Areas Affected:
Interior Kuskokwim Delta
Effective: Tue, 5/12 6:43pm Updated: Wed, 5/13 3:10am Urgency: Expected
Expires: Wed, 5/13 9:45pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Flooding caused by an ice jam is expected.

* WHERE...Bethel, Kwethluk

* WHEN...Until 945 PM AKDT Wednesday.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
This includes Kwethluk as well as low-lying areas in Bethel
including near Brown Slough and Alligator Acres. River or stream
flows are elevated.

* ADDITIONAL DETAILS...
- At 639 PM AKDT, The River Watch Team reported water levels
near 7.7 feet in Bethel.  These levels should slowly rise
through tomorrow.  Water and an ice jam further upstream
could reach Bethel tomorrow. Impounding water due to the ice
jam will cause river rises.
- http://www.weather.gov/safety/flood

- If you live near or along the Kuskokwim Rover at Bethel,
including Brown Slough and Alligator Acres, or Kwethluk stay alert
and be prepared to take action.

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
LOWER KUSKOKWIM VALLEY

Areas Affected:
Interior Kuskokwim Delta
Effective: Tue, 5/12 6:24pm Updated: Wed, 5/13 3:10am Urgency: Expected
Expires: Wed, 5/13 4:00pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Flooding caused by an ice jam is expected.

* WHERE...Tuluksak

* WHEN...Until 400 PM AKDT Wednesday.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
River or stream flows are elevated.

* ADDITIONAL DETAILS...
- At 621 PM AKDT, The River Watch Team reported an ice jam in
the channels of the Kuskokwim River immediately adjacent to
Tuluksak.  Water will likely steadily and slowly rise.
Impounding water due to the ice jam is causing water to rise.


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

- If you live near or along Tuluksak stay alert and be prepared to
take action.

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
LOWER KUSKOKWIM VALLEY

Areas Affected:
Middle Yukon Valley - Central Interior
Effective: Tue, 5/12 7:34pm Updated: Wed, 5/13 3:10am Urgency: Expected
Expires: Wed, 5/13 12:00pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Flooding caused by an ice jam is expected.

* WHERE...Including the following areas, Yukon River including Ruby
to Big Eddy and upstream of there.

* WHEN...Until noon AKDT Wednesday.

* IMPACTS...Flooding in low-lying areas.

* ADDITIONAL DETAILS...
- At 729 PM AKDT, The River Watch Team reported an ice jam on
the Middle Yukon River near the mouth of the Yuki River.
Impounding water due to the ice jam may cause rapid river
rises upstream. Properties along River Road in Ruby may be
affected. High water has backed up from Ruby to upstream of
Big Eddy and may affect riverside structures and cabins.
- http://www.weather.gov/aprfc

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

Flood Watch  FLOOD WATCH   Flood Watch
LOWER KUSKOKWIM VALLEY

Areas Affected:
Interior Kuskokwim Delta
Effective: Tue, 5/12 2:51pm Updated: Wed, 5/13 3:10am Urgency: Future
Expires: Wed, 5/13 10:00am Severity:  Severe  Certainty: Possible

 
Details:
* WHAT...Flooding caused by an ice jam continues to be possible.

* WHERE...Tuluksak, Akiak, Kwethluk, Bethel, Napaskiak, Oscarville,
and Napakiak.

* WHEN...Through Wednesday morning.

* IMPACTS...Creeks and streams may rise out of their banks.

* ADDITIONAL DETAILS...
- For Kwethluk: Ice jammed in the lower Kuskokuak channel at
and just upstream of the Y, or confluence with the Akiak
Channel of the Kuskokwim, has resulted in water rising in and
near Kwethluk. River Watch aerial reconnaissance noted water
has already started inundating surrounding low-level areas
near the community. Aerial reconnaissance also noted that
there are several spots of open water in the upper portion of
the Kuskokuak Channel, as well as downstream beyond the Y.
Until the ice shifts or moves, residents should prepare for
continued rising water levels, particularly in flood-prone
lower areas.

Akiak and Tuluksak: Original ice still in place which may
cause flooding as the breakup front moves downstream from
Kalskag.

Ice jams have been observed at/near Tuluksak, a few around
Akiak, and near Bethel, with a decaying jam near Napaskiak
downriver. Almost no intact-original ice is in place above
Bethel, with a mix of broken sheets.

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

Information:
Monitor the latest forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

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

Flood Watch  FLOOD WATCH   Flood Watch
LOWER KUSKOKWIM VALLEY

Areas Affected:
Middle Yukon Valley
Effective: Tue, 5/12 10:26pm Updated: Wed, 5/13 3:10am Urgency: Future
Expires: Wed, 5/13 10:00pm Severity:  Severe  Certainty: Possible

 
Details:
* WHAT...Flooding caused by an ice jam continues to be possible.

* WHERE...Including the following area, Galena.

* WHEN...Through Wednesday evening.

* IMPACTS...High water may result in flooding of rivers, creeks,
streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- An ice jam has been reported by the River Watch team along
the Yukon River near the mouth of the Yuki River. This
indicates that local ice is more resistant to breakup. As the
front progresses towards Galena residents should be prepared
for the possibility of an ice jam downstream of Galena
including near Bishop Rock.

- Http://www.weather.gov/aprfc

Information:
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

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

Flood Watch  FLOOD WATCH   Flood Watch
LOWER KUSKOKWIM VALLEY

Areas Affected:
Yukon Flats
Effective: Tue, 5/12 10:26pm Updated: Wed, 5/13 3:10am Urgency: Future
Expires: Wed, 5/13 10:00pm Severity:  Severe  Certainty: Possible

 
Details:
* WHAT...Flooding caused by snowmelt may be possible.

* WHERE...Including the following area, Fort Yukon

* WHEN...Through Wednesday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- Water levels in the Porcupine River are rising due to
snowmelt which is pushing water int the Sucker River near Ft.
Yukon. The Sucker River is starting to flow over low lying
roads near the NE end of the runway. Water levels could keep
rising for several days as the snowmelt pulse in the
Porcupine makes its way into the Yukon River. Residents of
Ft. Yukon should monitor water levels through the end of the
week.

- Http://www.weather.gov/aprfc

Information:
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

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

Hydrologic Outlook  HYDROLOGIC OUTLOOK   Hydrologic Outlook
LOWER KUSKOKWIM VALLEY

Areas Affected:
Middle Yukon Valley - Central Interior
Effective: Tue, 5/12 6:07pm Updated: Wed, 5/13 3:10am Urgency: Future
Expires: Wed, 5/13 4:00pm Severity: Unknown Certainty: Possible

 
Details:
ESFAFG

...Locations Impacted...
Tanana, Ruby, and Galena

As of 3pm Tuesday afternoon the Yukon River breakup front was
located at the mouth of the Yuki River 25 miles below Ruby. The
breakup front stalled and jammed there for most of the day. Water
levels continue to be high at Ruby due to the jammed breakup front.
Ice runs extend almost 100 miles upstream of the breakup front. The
River Watch team will fly this section of the Yukon Wednesday and an
update is expected later Wednesday.

Hydrologic Outlook  HYDROLOGIC OUTLOOK   Hydrologic Outlook
LOWER KUSKOKWIM VALLEY

Areas Affected:
Middle Yukon Valley - Central Interior
Effective: Tue, 5/12 8:23am Updated: Wed, 5/13 3:10am Urgency: Future
Expires: Wed, 5/13 4:00pm Severity: Unknown Certainty: Possible

 
Details:
ESFAFG

...Locations Impacted...
Tanana, Ruby, and Galena

As of Monday evening the Yukon River breakup was located about 60
miles below Tanana. A long stretch of heavy, bank to bank ice run
was noted from the breakup front to 20 miles upstream of Tanana. The
river through this stretch was moving steadily with water levels
remaining within the banks. Downstream from the breakup front,
numerous large pressure ridges and shifted ice were observed to
Ruby. Ice in front of Ruby shifted Monday morning and the tripod at
Galena moved a few hundred feet downstream at Galena Monday.
Meanwhile downstream of Galena at Bishop Rock the upstream side of
the ice remained fairly strong and intact, while open water was
present downstream. The River Watch team will fly this section of
the Yukon Tuesday and an update is expected later Tuesday or early
Wednesday.



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