371 WWUS76 KMFR 020632 NPWMFR URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 1032 PM PST MON DEC 1 2008 ...STAGNANT WEATHER CONDITIONS CONTINUE IN SOUTHERN OREGON... .A STAGNANT WEATHER PATTERN HAS BROUGHT VERY POOR VENTILATION CONDITIONS TO THE VALLEYS OF SOUTHERN OREGON. THESE CONDITIONS WILL PERSIST INTO THE SECOND HALF OF THE WEEK. ORZ024-026-029-022015- /O.CON.KMFR.AS.Y.0002.000000T0000Z-081205T2200Z/ EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY- KLAMATH BASIN- INCLUDING THE CITIES OF...GRANTS PASS...MEDFORD...ASHLAND... ALTAMONT...KLAMATH FALLS 1032 PM PST MON DEC 1 2008 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST FRIDAY... AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST FRIDAY. WINDS WILL REMAIN LIGHT THROUGHOUT THIS WEEK. IN ADDITION TEMPERATURE INVERSIONS WILL CONTINUE AND TRAP SMOKE AND OTHER POLLUTANTS IN THE VALLEYS OF KLAMATH...JACKSON AND JOSEPHINE COUNTIES. AS A RESULT THE AIR STAGNATION ADVISORY HAS BEEN EXTENDED THROUGH THE END OF THE WEEK. AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIRMASS ACROSS THE ADVISORY AREA...POLLUTION WILL INCREASE. $$