PACIFIC RIVER FORECAST CENTER
7 AM WEDNESDAY MAY 13, 2015
SPRING BREAKUP SUMMARY FOR ALASKA....
THE SPRING BREAKUP FLOOD POTENTIAL IS RATED AS LOW TO LOW-MODERATE STATEWIDE.
THIS FORECAST IS BASED ON OBSERVED SNOWPACK AND ICE THICKNESS REPORTS AND
MEDIUM TO LONG RANGE TEMPERATURE AND PRECIPITATION FORECASTS. CURRENTLY
BREAKUP AT MOST LOCATIONS IS EXPECTED TO BE A FEW DAYS EARLIER THAN AVERAGE.
ON THE YUKON RIVER, THE ICE IS OUT FROM EAGLE TO GALENA WITH THE EXCEPTION
BEING REPORTED IN THE VICNITY OF FORT YUKON WHERE SOME IN PLACE ICE REMAINS.
A DENSE RUN OF ICE IS PASSING RUBY TODAY (WEDNESDAY). THE BREAKUP FRONT BELOW
GALENA WAS NEAR KOYUKUK TUESDAY MORNING AND RIVER LEVELS WERE LOW. DOWNRIVER
NEAR NULATO THE ICE WAS ROTTEN AND SOME OPEN LEADS WERE FORMING. FURTHER
DOWNRIVER FROM ANVIK TO PILOT STATION A FEW SMALL OPEN LEADS ARE ALSO BEING
REPORTED AND APPEAR ON SATTELITE IMAGERY.
THE KOYUKUK RIVER IS MOSTLY OPEN FROM BETTLES TO HUGHES.
--------------------------------------------------------------------SNOWMELT
FLOOD
AVERAGE
FORECAST
RIVER - REACH
RUNOFF
POTENTIAL BREAKUP
BREAKUP
VOLUME
DATE *
DATE
---------------------- --------- ------- ---------YUKON RIVER (UPPER)
AVERAGE
CIRCLE
FORT YUKON
BEAVER
STEVENS VILLAGE
RAMPART
YUKON RIVER (MIDDLE)
MARSHALL
PILOT STATION
05/10
05/11
05/11
05/12
05/12
05/11**
05/12**
05/10**
05/11**
05/11**
LOW
LOW
LOW
LOW
LOW
LOW
05/10
05/12
05/13
05/13
05/13
05/14
05/06**
05/08**
05/09**
05/12-05/13
05/12-05/14
05/13-05/15
LOW
LOW
05/16
05/17
05/14-05/19
05/15-05/19
BELOW
TANANA
RUBY
GALENA
KOYUKUK
NULATO
KALTAG
YUKON RIVER (LOWER)
LOW-MOD
LOW
LOW
LOW
LOW
BELOW