Snohomish County, Washington
To view the watches and warnings information that we have available you will need to select your city, county, or state first.
Enter City, State or Zip Code to Select a Location from the List
Watch/Warnings
Click to view enlarged map

The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: Snohomish County, Washington
« View county list

Flood Warning
WAC061-242345-
/O.CON.KSEW.FA.W.0003.000000T0000Z-140424T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SNOHOMISH-
347 PM PDT FRI APR 18 2014

...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM PDT THURSDAY FOR
NORTH CENTRAL SNOHOMISH COUNTY...

* 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 0.77 INCHES OF RAIN IN THE LAST 24
HOURS. NO RAINFALL IS EXPECTED UNTIL MIDDAY SATURDAY. ABOUT 1.0 INCH
OF RAIN IS EXPECTED FROM MIDDAY SATURDAY THROUGH EARLY SUNDAY
MORNING. AT 330 PM PDT FRIDAY...THE NORTH FORK OF THE STILLAGUAMISH
RIVER NEAR ARLINGTON WAS AT 5.4 FEET OR 4076 CFS. THE NORTH FORK OF
THE STILLAGUAMISH NEAR OSO WAS AT 217.0 FEET...OR 2370 CFS. THE
RIVER IS EXPECTED TO FALL ABOUT 1 FOOT THROUGH MIDDAY
SATURDAY...THEN RISE A FOOT CRESTING EARLY SUNDAY AFTERNOON.

* AT 300 AM PDT FRIDAY...THE POOL ELEVATION WAS 286.2 FT.

* THE POOL ELEVATION IS FORECAST TO FALL TO 284.5 FEET BY LATE
SATURDAY AFTERNOON...THEN RISE TO 285.2 FEET MIDDAY SUNDAY. THERE
CONTINUES TO BE A GREAT AMOUNT OF UNCERTAINTY IN THE FORECAST POOL
ELEVATION DUE IN PART TO LIMITED KNOWLEDGE OF HOW MUCH WATER THE NEW
STREAM CHANNEL THROUGH THE SLIDE DEBRIS WILL BE ABLE TO CONVEY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WARNING MEANS FLOODING IS OCCURRING OR IMMINENT. MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER
COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A
FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER
MOVE UP TO HIGHER GROUND.

&&

LAT...LON 4825 12181 4829 12185 4829 12177 4829 12166
4824 12165 4826 12174

$$

National Weather Service

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."
Weather Alerts by Type
Air Quality Alert
Flash Flood Warning
Flash Flood Watch
Flood Advisory
Flood Warning
Flood Watch
High Surf Advisory
Hydrologic Statement
Special Weather Statement
Tornado Watch
Wind Advisory
Winter Weather Advisory
Additional Severe Weather Maps
Severe Outlook Today
Severe Outlook Today
WSI's Severe Outlook Map displays current Watches, Warnings and Advisories via County Fill colors.
Severe Outlook Tomorrow
Severe Outlook Tomorrow
WSI's Severe Outlook Forecast Map displaying projected Watches, Warnings and Advisories.
THUNDERcast
THUNDERcast
The THUNDERcast map shows areas of probability for regional or national thunderstorms for the current day.
1Km Storm Watch
1Km Storm Watch
The 1Km map allows you to view 1 kilometer (km) resolution radar imagery both nationally and regionally.
Metro Storm Watch
Metro Storm Watch
The Metro map allows you to view 1 kilometer (km) resolution radar imagery.
Advertisements
At Last! Intellicast now available for iPhone and Android