
An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >
Seattle, WA
Center Weather Service Unit
The following table is automatically produced based on the latest information available at the time the page was loaded. It is intended to help the user monitor current and forecasted conditions.
Data used includes METARs, TAFs, Graphical AIRMETs, SIGMETs, CWAs, PIREPs, TCF, SREF TS, NBH TS, AMDAR, and RAP BUFKIT. It is not intended to be all-inclusive or as a replacement any other products.
Faint lower-case indicates limited hazard(s) noted, medium uppper-case indicates a few more hazards, and darker bold upper-case indicates numerous or stronger hazards were found. For example, a single station in the area that is IFR will only yield a lower-case letter, whereas a SIGMET covering a significant part of the area would be bold upper-case. Hovering over the table cell will list the found hazard indicators.
The default time interval is 6 hours, but you also can select 4 hours, 8 hours, 10 hours, or 12 hours. Add "&includetraconimpacts" to the URL to include S46/P80/GEG impacts in table. Add "&fulltable" to the URL to include Terminal impacts in table.
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Seattle, WA
3101 Auburn Way South
Auburn, WA 98092
Comments? Questions? Please Contact Us.

