799
NGAK89 PAFG 302208
HCMAFG
HYDROMETEOROLOGICAL COORDINATION MESSAGE
ALASKA-PACIFIC RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE ANCHORAGE AK
151 PM AKDT TUE MAY 30 2023
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CONTACT:
KYLE VANPEURSEM 266-5161 350-9219 (CELL PHONE AFTER 5 PM)
HAS DESK 266-5164 HAS CELL PHONE 350-9221
LOCATION: ALAKANUK AND EMMONAK
PRODUCT TYPE: WARNING
EXPIRATION TIME: THURSDAY 6PM
PRIMARY CAUSE: ICE JAM
IMPACTS: FLOODING ON THE YUKON RIVER DELTA AND OTHER LOW LYING AND FLOOD PRONE
LOCATIONS IS OCCURRING AND IS EXPECTED TO CONTINUE OVER THE NEXT COUPLE OF DAYS.
REASON FOR WARNING/ADVISORY:
AN ICE JAM AT THE TERMINUS OF THE SOUTH MOUTH OF THE YUKON RIVER CAUSED WATER TO BACKUP
AND FLOOD COMMUNITIES IN THE YUKON DELTA, INCLUDING EMMONAK AND ALAKANUK. ON MONDAY, SATELLITE
IMAGERY REVEALED THAT THE ICE JAM BROKE AND FLUSHED OUT INTO THE BERING SEA. WATER LEVELS
IN EMMONAK AND ALAKANUK HAVE BEGUN TO SUBSIDE BUT SIGNIFICANT FLOODING OF ROADS AND STRUCTURES
IN THESE COMMUNITIES IS STILL OCCURRING AS THE WATER BACKED UP BEHIND THE ICE JAM SLOWLY RECEDES.
RESIDENTS SHOULD BE PREPARED FOR A LONG PERIOD OF HIGH WATER AS UPSTREAM SNOW MELT WORKS ITS WAY DOWNSTREAM.
COMMENTS:
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