
These storm systems will bring late season snow, sleet and ice for portions of the northern Plains, upper Midwest and Great Lakes region. Meanwhile, where temperatures are warmer, severe thunderstorms are expected for areas of the Mississippi Valley into the southern Plains. Furthermore, combination of windy and dry conditions will raise fire weather concerns for the southern High Plains. 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. You also can add additional Pacific Northwest area terminals using "&terminals=AAAA,BBBB,CCCC", where AAAA,BBBB,CCCC are 4-letter IDs (some data sources are not included for these extra terminals in checks), and add "&replace" if you want to replace all the pre-defined terminals (ZSE Areas will remain).
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.

