Flash Flood Watch
Issued by NWS Fairbanks, AK
Issued by NWS Fairbanks, AK
909 WGAK69 PAFG 220026 FFAAFG Flood Watch National Weather Service Fairbanks AK 426 PM AKDT Tue May 21 2024 AKZ825-220830- /O.CON.PAFG.FA.A.0004.000000T0000Z-240524T2000Z/ /00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Yukon Delta Coast- Including the cities of Kotlik, Alakanuk, Hooper Bay, Nunam Iqua, Scammon Bay, Emmonak, Mountain Village, and Chevak 426 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. && $$ AKZ833-220830- /O.CON.PAFG.FA.A.0004.240522T2100Z-240529T2200Z/ /00000.0.SM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Yukon Flats- Including the cities of The Steese Highway north of MP 124, Venetie, Central, Beaver, Circle, Fort Yukon, and Stevens Village 426 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 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. && $$ JB