...AIR STAGNATION ADVISORY IN EFFECT UNTIL NOON PST FRIDAY FOR ELEVATIONS BELOW 5000 FEET... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED AN AIR STAGNATION ADVISORY...WHICH IS IN EFFECT UNTIL NOON PST FRIDAY FOR ELEVATIONS BELOW 5000 FEET. HIGH PRESSURE WILL BE OVER THE AREA MUCH OF THIS WEEK. LIGHT WINDS AND LOW INVERSION LEVELS ARE EXPECTED OVER THE KLAMATH BASIN AND THE LOWER ELEVATIONS OF LAKE COUNTY. THIS WILL RESULT IN LITTLE MIXING OF THE AIR AND POOR VENTILATION...WITH THE POTENTIAL FOR POLLUTANTS TO BE TRAPPED NEAR GROUND LEVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION MAY INCREASE. &&Note: In order to comply with National Weather Service safety tests, occasionally this product will display test alerts, which are normally conducted during calm, quiet weather.
(12/1/2009 3:40 AM)
(11/30/2009 1:30 PM)
(11/6/2009 5:30 AM)