NowCast ZoneCast Warnings/Advisories Hourly Track Special
Yakima, Washington, United States  Lat: 46.59N, Lon: 120.53W
Wx Zone: WAZ027
Warnings, Watches and Advisories:
 

HIGH SURF ADVISORY

...HIGH SURF ADVISORY IN EFFECT FROM 10 PM SATURDAY TO 10 AM PDT
SUNDAY FOR THE SOUTH WASHINGTON AND NORTH OREGON COAST...
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT FROM 10 PM SATURDAY TO 10 AM PDT
SUNDAY.
* SEAS: RAPIDLY BUILDING TO 17 TO 20 FT AROUND 10 PM SATURDAY
NIGHT AND CONTINUE AT THIS LEVEL THROUGH EARLY SUNDAY MORNING.
SEAS WILL BEGIN TO SLOWLY SUBSIDE SUNDAY AFTERNOON.
* IMPACTS: EXERCISE EXTREME CAUTION ALONG BEACHES. UNPREDICTABLE
AND DESTRUCTIVE WAVES MAY WASH OVER BEACHES...JETTIES AND OTHER
STRUCTURES WITH NO WARNING. HAZARDS INCREASE DURING HIGH TIDES
WHICH ARE FORECAST TO OCCUR AROUND 5 AM AND 7 PM SUNDAY FOR THIS
EVENT.

SPECIAL WEATHER STATEMENT

...HIGH SURF IS EXPECTED ON THE NORTHERN AND CENTRAL WASHINGTON
COAST SATURDAY NIGHT INTO SUNDAY...
LARGE WAVES...16 TO 19 FEET...ARE EXPECTED TO REACH THE COAST
SATURDAY NIGHT AND CONTINUE INTO SUNDAY. THIS WEEKEND IS A RAZOR
CLAM DIGGING WEEKEND FOR THE TWIN HARBORS...COPALIS AND MOCROCKS
BEACHES. THOSE PLANNING ON CLAM DIGGING SATURDAY NIGHT AND SUNDAY
MORNING OR OTHER BEACH ACTIVITIES SATURDAY NIGHT AND SUNDAY SHOULD
BE ALERT FOR WAVES SUDDENLY RACING FARTHER UP THE BEACH THAN NORMAL.
MONITOR THE LATEST FORECASTS FROM THE NATIONAL WEATHER SERVICE
ON THIS SITUATION.

FLOOD WARNING

FLOOD BULLETIN NO. 31
THE NATIONAL WEATHER SERVICE IN SEATTLE HAS EXTENDED THE
* FLOOD WARNING FOR THE NORTH FORK STILLAGUAMISH RIVER EAST OF THE
STATE ROUTE 530 SLIDE IN NORTH CENTRAL SNOHOMISH COUNTY...
* UNTIL 445 PM PDT APRIL 24.
* FLOODING CONTINUES ON THE NORTH FORK OF THE STILLAGUAMISH RIVER
UPSTREAM OF THE SR 530 SLIDE DUE TO DEBRIS FROM THE STATE ROUTE
530 SLIDE PARTIALLY BLOCKING THE RIVER AND THE RESULTING POOLING
OF WATER BEHIND THE  DEBRIS DAM. WE WILL BE UPDATING THE FLOOD
WARNING ON A DAY TO DAY BASIS.
* THE OSO AREA HAS RECEIVED 1.84 INCHES OF RAIN IN THE LAST 24
HOURS. THE RAINFALL FORECAST IS FOR ANOTHER 1.0 INCHES OF RAIN IN
THE OSO AREA AND UP TO 1.5 INCHES IN THE MOUNTAINS THROUGH FRIDAY
MORNING. THE RIVER WILL CONTINUE RISING TODAY...CRESTING TONIGHT
BEFORE MIDNIGHT WITH THE LARGEST FLOWS SINCE THE SLIDE OCCURRED.
THE PEAK FLOW FORECAST FOR THE NORTH FORK RIVER NEAR ARLINGTON
GAGE IS NEAR 9.3 FT. OR 13000 CFS AND NEAR 7900 CFS FOR THE
NORTH FORK STILLAGUAMISH RIVER AT OSO.
* AT 1200 PM PDT...THE POOL ELEVATION WAS 285.8 FT.
* THE POOL ELEVATION IS FORECAST TO RISE TO 287.7 FT. BY THURSDAY
NIGHT BEFORE MIDNIGHT. THE POOL ELEVATION WILL START DROPPING
SIGNIFICANTLY FRIDAY. THERE IS A GREAT AMOUNT OF UNCERTAINTY IN
THE FORECAST POOL ELEVATION CREST DUE IN PART TO LIMITED KNOWLEDGE
OF HOW MUCH WATER THE NEW STREAM CHANNEL THROUGH THE SLIDE DEBRIS
WILL BE ABLE TO CONVEY.