Flood Watch
Flood Watch
National Weather Service Fairbanks AK
650 PM AKDT Tue May 21 2024
AKZ833-230000-
/O.CON.PAFG.FA.A.0004.240522T2100Z-240529T2200Z/
/00000.0.SM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yukon Flats-
Including the cities of Beaver, Fort Yukon, Stevens Village,
Venetie, The Steese Highway north of MP 124, Central, and Circle
650 PM AKDT Tue May 21 2024
...FLOOD WATCH FOR SNOWMELT REMAINS IN EFFECT FROM WEDNESDAY
AFTERNOON THROUGH WEDNESDAY, MAY 29...
* WHAT...Flooding caused by snowmelt is possible.
* WHERE...The Porcupine River at Ft Yukon, including the city of
Fort Yukon.
* WHEN...From Wednesday afternoon through Wednesday, May 29.
* IMPACTS...Excessive runoff may result in flooding of rivers,
sloughs and other low-lying and flood-prone locations near Fort
Yukon. High water will begin move into low lying areas on the east
side of Fort Yukon from the middle to the end of week, with
possible flooding in Fort Yukon developing over the weekend. This
will be a slow-onset flood, with the water slow to recede as well.
* ADDITIONAL DETAILS...
- Breakup is underway on the Porcupine River east of the border
with high water levels due to snowmelt from a much wetter
than average winter. The Porcupine River below Old Crow
(Canada) crested at 53.56 ft on May 19, while the Porcupine
River gage closer to the US border had a record crest of
53.57 ft on May 19. This high water will likely reach Fort
Yukon by midweek, at which point the Porcupine may cause the
Sucker River to back up into low-lying areas on the east side
of town, then spread through the swales westward. Based on
historic norms, if flooding occurs, expect floodwaters to
slowly peak on the weekend, then slowly recede next week.
There is potential for this event to be very similar to
flooding of last year; however water levels on the Yukon
River are not nearly as high as last year which could
mitigate the situation.
- Http://www.weather.gov/aprfc
- Please stay tuned to NOAA weather radio or your favorite local
weather news source for updates on this situation.
- If you live in low lying areas in Fort Yukon stay alert and be
prepared to take action.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding in Fort Yukon
should be prepared to take action should flooding develop. Take
action now to move valuables to higher ground that remained dry
during last years flooding.
Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.
&&
$$
BB
Flood Watch
National Weather Service Fairbanks AK
650 PM AKDT Tue May 21 2024
AKZ825-230000-
/O.CON.PAFG.FA.A.0004.000000T0000Z-240524T2000Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yukon Delta Coast-
Including the cities of Emmonak, Hooper Bay, Alakanuk, Kotlik,
Scammon Bay, Nunam Iqua, Chevak, and Mountain Village
650 PM AKDT Tue May 21 2024
...FLOOD WATCH FOR AN ICE JAM REMAINS IN EFFECT THROUGH FRIDAY
MORNING...
* WHAT...Flooding caused by an ice jam is possible.
* WHERE...The Yukon River downstream of Mountain Village to the
Yukon Delta Coast.
* WHEN...Through Friday morning.
* IMPACTS...Ice jams may result in flooding along the Yukon River
over the Yukon Delta. Low lying areas near Emmonak, Alakanuk,
Nunam Iqua and Kotlik have potential to flood from late tonight
through Friday. If an ice jam forms, water could rise rapidly.
Water is high at Mountain Village, but it appears that the threat
of flooding at Mountain Village is over.
* ADDITIONAL DETAILS...
- The Yukon River broke up to past Mountain Village on Sunday
May 19. The breakup front will likely reach Emmonak and
Alakanuk between Wednesday and Friday, based on historic
trends. There is potential for flooding in Emmonak, Alakanuk,
Nunam Iqua and Kotlik as breakup progresses. Though this year
has been a thermal breakup for most of the Yukon River, the
ice in the Yukon Delta is thicker than normal and is more
likely to jam up as water comes down river. An ice jam did
form and release May 19 downstream of Pilot Station which led
to flooding. This run of ice could lead to high water
downstream. In addition, satellite imagery depicts minimal
degradation of shorefast ice along the Yukon Delta Coast.
This may exacerbate the situation as shorefast ice could
impede the breakup push and lead to backwater in communities
closest to the coast.
- Http://www.weather.gov/aprfc
- Please stay tuned to NOAA weather radio or your favorite local
weather news source for updates on this situation.
- If you live near or along the Yukon River on the Yukon Delta
move valuables to higher ground, stay alert and be prepared to
take action.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
$$
