Headline:
Dense Fog Advisory issued October 5 at 8:41PM PDT until October 6 at 12:00PM PDT by NWS Portland OR
Event:
Dense Fog Advisory
Urgency:
Expected
Effective:
October 5, 2026 - 8:41pm
Expires:
October 6, 2026 - 12:45pm
Description:
* WHAT...For the Dense Fog Advisory, dense fog will reduce
visibility to 1 NM or less. For the Small Craft Advisory, rough
bar conditions expected. Seas 4 to 5 ft at 11 seconds and north
winds 15 to 20 kt with gusts up to 25 kt expected.
* WHERE...In the Main Channel of the Columbia River Bar.
* WHEN...Dense Fog Advisory, until noon PDT Tuesday. Small Craft
Advisory, from 5 PM Tuesday to 2 AM PDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft,
especially when operating near to, or attempting to cross, the
Columbia River Bar. Low visibility will make navigation
difficult.
* ADDITIONAL DETAILS...Ebb current of 4.85 kt at 233 AM Wednesday.
Seas 5 ft.
Instruction:
A Small Craft Advisory means that wave conditions are expected to
be hazardous to small craft in the vicinity of the Columbia River
Bar. Mariners are advised to obtain the latest bar conditions
from the United States Coast Guard before attempting to cross the
bar.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Area Description:
Columbia River Bar
Forcast Office:
NWS Portland OR
Sender:
w-nws.webmaster@noaa.gov