711
FGAK87 PAJK 130401
RVSAJK
AKZ018-029-131615-
HYDROLOGIC STATEMENT
NATIONAL WEATHER SERVICE JUNEAU AK
801 PM AKDT MON AUG 12 2013
...SALMON RIVER CRESTED DUE TO GLACIALLY DAMMED LAKE RELEASE...
WATER LEVEL ON THE SALMON RIVER NEAR HYDER CRESTED AT 28.1 FEET
AT 5 PM MONDAY EVENING. THE HIGH WATER LEVEL IS DUE TO THE
RELEASE OF THE GLACIALLY DAMMED SUMMIT LAKE UPSTREAM IN BRITISH
COLUMBIA. THE SALMON RIVER WILL LOWER OVERNIGHT TO A MINIMUM OF
ABOUT 22.5 FEET AND THEN BEGIN TO RISE AGAIN TUESDAY MORNING.
STRONG DIURNAL TRENDS WILL CONTINUE WITH RISES DURING THE
AFTERNOONS...CRESTS REACHED DURING EVENINGS...AND FALLS OVERNIGHT
INTO THE MORNING.
SUCH A GLACIAL DAM RELEASE EVENT TYPICALLY LASTS ABOUT 5 DAYS...WITH
THE HIGHEST RIVER STAGE OCCURRING ON THE THIRD DAY OF THE EVENT.
FOR THIS REASON THE CREST IS TUESDAY EVENING IS NOT EXPECTED
TO CREST AS HIGH. WHILE THERE IS AN AUTOMATED USGS RIVER GUAGE
MEASURING THE SALMON RIVER. THERE ARE NO ESTABLISHED FLOOD
STAGES FOR THIS GUAGE. RESIDENTS IN THE AREA NEAR THE SALMON
RIVER ARE REQUESTED TO REPORT ANY OBSERVED FLOOD IMPACTS BY
CALLING THE NATIONAL WEATHER SERVICE IN JUNEAU AT 1 8 7 7 8 0 7 8
9 4 3.
...TAIYA RIVER WATERS EXPECTED TO REMAIN HIGH DUE TO MELTING..
THE DAYTIME TEMPERATURES THIS WEEK PROVIDED ENOUGH MELTING MONDAY
AFTERNOON TO RAISE THE TAIYA RIVER TO CREST AT ABOUT 16.2 FEET
THIS EVENING. THE TAIYA RIVER WILL NOT REACH THE MINOR FLOOD STAGE
OF 16.5 FEET. STRONG DIURNAL TRENDS WILL CONTINUE WITH RISES
DURING THE AFTERNOONS...CRESTS REACHED DURING EVENINGS...AND FALLS
OVERNIGHT INTO THE MORNING.THIS TREND WILL CONTINUE AND WILL BE
MONITORED.
A TAIYA RIVER STAGE OF 16.1 FEET IS HIGH ENOUGH TO FOR PORTIONS
THE CHILKOOT TRAIL TO BEGIN TO INUNDATE WITH WATER.
THIS STATEMENT WILL BE UPDATED BY 6 AM AKDT TUESDAY OR SOONER IF
CONDITIONS WARRANT.
$$
TRUITT