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

AIR STAGNATION ADVISORY

...STAGNANT CONDITIONS TO CONTINUE THROUGH THE WEEK...
.INVERSIONS WILL RESULT IN STAGNANT CONDITIONS WITH LOW CLOUDS
AND DENSE FOG AT TIMES.
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...
AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY.
* TIMING: THROUGH AT LEAST MIDDAY FRIDAY.
* LOCATIONS: VALLEYS IN AND AROUND THE LOWER COLUMBIA BASIN OF
WASHINGTON INCLUDING THE YAKIMA AND KITTITAS VALLEYS
* IMPACTS: POLLUTANTS TRAPPED NEAR THE SURFACE CAN NEGATIVELY
AFFECT THOSE WITH RESPIRATORY CONDITIONS.

AIR STAGNATION ADVISORY

..LIGHT WINDS AND INVERSIONS WILL PERSIST THROUGH MUCH OF THE
WORKWEEK. THIS WILL LEAD TOWARD STAGNANT AIR CONDITIONS OVER MUCH
OF CENTRAL AND NORTHEAST WASHINGTON.
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST
FRIDAY...
* AIR QUALITY...LIGHT WINDS AND STABLE CONDITIONS WILL INCREASE
THE POTENTIAL FOR BUILD UP OF POLLUTANTS NEAR THE SURFACE.
* TIMING...HIGH PRESSURE WILL PERSIST THROUGH FRIDAY MORNING.
* IMPACTS...PROLONGED PERIODS OF STAGNANT AIR CAN LOCK FINE
PARTICULATE MATTER CLOSE TO THE GROUND AND DEGRADE AIR QUALITY.