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Air Stagnation Advisory
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URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 545 PM PST FRI JAN 17 2014 ...STAGNANT CONDITIONS ARE EXPECTED THROUGH AT LEAST FRIDAY JANUARY 24TH 2014... IDZ001-WAZ032-034-035-037-038-041>044-181300- /O.CON.KOTX.AS.Y.0001.000000T0000Z-140124T1800Z/ NORTHERN PANHANDLE-LOWER GARFIELD AND ASOTIN COUNTIES- MOSES LAKE AREA-UPPER COLUMBIA BASIN-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- OKANOGAN VALLEY-WATERVILLE PLATEAU- INCLUDING THE CITIES OF...SANDPOINT...RATHDRUM...BONNERS FERRY... PRIEST RIVER...CLARKSTON...POMEROY...MOSES LAKE...EPHRATA... OTHELLO...QUINCY...RITZVILLE...GRAND COULEE...ODESSA...WILBUR... COULEE CITY...COLVILLE...DEER PARK...CHEWELAH...NEWPORT... KETTLE FALLS...REPUBLIC...INCHELIUM...WENATCHEE...CHELAN. .. ENTIAT...CASHMERE...LEAVENWORTH...MAZAMA...TWISP.. .WINTHROP... STEHEKIN...CONCONULLY...OMAK...OKANOGAN...BREWSTER ...BRIDGEPORT... OROVILLE...NESPELEM...WATERVILLE...MANSFIELD 545 PM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY... * AIR QUALITY: LIGHT WINDS AND STABLE CONDITIONS WILL INCREASE THE POTENTIAL FOR THE BUILD UP OF POLLUTANTS NEAR THE GROUND. * TIMING: THROUGH FRIDAY MORNING JANUARY 24TH. * IMPACTS: PROLONGED PERIODS OF STAGNANT AIR CAN HOLD FINE PARTICULATES CLOSE TO THE GROUND AND DEGRADE AIR QUALITY. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=OTX PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION HAS THE POTENTIAL TO INCREASE TO DANGEROUS LEVELS. PERSONS WITH RESPIRATORY ILLNESS SHOULD FOLLOW THEIR PHYSICIANS ADVICE FOR DEALING WITH HIGH LEVELS OF AIR POLLUTION. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SPOKANE WA 545 PM PST FRI JAN 17 2014 ...STAGNANT CONDITIONS ARE EXPECTED THROUGH AT LEAST FRIDAY JANUARY 24TH 2014... IDZ002-WAZ036-181300- /O.NEW.KOTX.FG.Y.0003.140118T0200Z-140118T1800Z/ /O.CON.KOTX.AS.Y.0001.000000T0000Z-140124T1800Z/ COEUR D`ALENE AREA-SPOKANE AREA- INCLUDING THE CITIES OF...COEUR D`ALENE...POST FALLS...HAYDEN... WORLEY...SPOKANE...CHENEY...DAVENPORT...ROCKFORD 545 PM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY... ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST SATURDAY... THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST SATURDAY. * VISIBILITIES: ONE QUARTER MILE OR LESS AT TIMES...ESPECIALLY AROUND THE WEST PLAINS TO DAVENPORT AND ALONG THE HIGHWAY 395...195...95 AND HIGHWAY 2 CORRIDORS. * AIR QUALITY: LIGHT WINDS AND STABLE CONDITIONS WILL INCREASE THE POTENTIAL FOR THE BUILD UP OF POLLUTANTS NEAR THE GROUND. * TIMING: AREAS OF DENSE FOG WILL BE FOUND THROUGH SATURDAY MORNING JANUARY 18TH. AIR STAGNATION ADVISORY THROUGH FRIDAY MORNING JANUARY 24TH. * FOG IMPACTS: DENSE FOG COUPLED WITH SUB-FREEZING TEMPERATURES COULD LEAD TO ICY ROADS COMBINED WITH POOR VISIBILITIES AND SUBSEQUENT HAZARDOUS DRIVING CONDITIONS * AIR QUALITY IMPACTS: PROLONGED PERIODS OF STAGNANT AIR CAN HOLD FINE PARTICULATES CLOSE TO THE GROUND AND DEGRADE AIR QUALITY. * WEB PAGE: FOR A DETAILED VIEW OF THE HAZARD AREA VISIT HTTP://WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=OTX PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION HAS THE POTENTIAL TO INCREASE TO DANGEROUS LEVELS. PERSONS WITH RESPIRATORY ILLNESS SHOULD FOLLOW THEIR PHYSICIANS ADVICE FOR DEALING WITH HIGH LEVELS OF AIR POLLUTION. A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN... USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 305 PM PST FRI JAN 17 2014 ...STAGNANT AIR TO CONTINUE THROUGH NEXT WEEK... .STRONG HIGH PRESSURE WILL STRENGTHEN THIS WEEKEND. THE HIGH MAY WEAKEN SLIGHTLY ON AROUND THURSDAY OF NEXT WEEK AS A WEAK TROUGH APPROACHES. HOWEVER THIS TROUGH IS NOT EXPECTED TO BE STRONG ENOUGH TO DENT THE STABLE HIGH PRESSURE. ORZ023-024-026-181715- /O.CON.KMFR.AS.Y.0001.000000T0000Z-140125T1200Z/ CENTRAL DOUGLAS COUNTY-EASTERN CURRY COUNTY AND JOSEPHINE COUNTY- JACKSON COUNTY- INCLUDING THE CITIES OF...DRAIN...ELKTON...ROSEBURG...SUTHERLIN... GREEN...MYRTLE CREEK...CANYONVILLE...GRANTS PASS... CAVE JUNCTION...MEDFORD...ASHLAND 305 PM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY. * SYNOPSIS...STRONG HIGH PRESSURE WILL STRENGTHEN AGAIN THIS WEEKEND INTO NEXT WEEK. A TROUGH PASSAGE AROUND THURSDAY MAY WEAKEN THE HIGH PRESSURE SLIGHTLY BUT THIS TROUGH IS NOT EXPECTEDTO BE STRONG ENOUGH TO REMOVE THE STABLE AIR MASS. * LOCATIONS INCLUDE: DRAIN...ELKTON...ROSEBURG...SUTHERLIN... GREEN...MYRTLE CREEK...CANYONVILLE...GRANTS PASS... CAVE JUNCTION...MEDFORD...ASHLAND. * IMPACTS...THE STRONG INVERSION WILL LIMIT MIXING OF THE AIR. THIS WILL CAUSE AIRBORNE PARTICULATES AND POLLUTANTS TO BE TRAPPED RESULTING IN THE POTENTIAL OF DETERIORATING AIR QUALITY. THOSE SENSITIVE TO DIMINISHED AIR QUALITY SHOULD TAKE PRECAUTIONS TO LIMIT EXPOSURE. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5 PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION MAY INCREASE. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 305 PM PST FRI JAN 17 2014 ...STAGNANT AIR TO CONTINUE THROUGH NEXT WEEK... .STRONG HIGH PRESSURE WILL STRENGTHEN THIS WEEKEND. THE HIGH MAY WEAKEN SLIGHTLY ON AROUND THURSDAY OF NEXT WEEK AS A WEAK TROUGH APPROACHES. HOWEVER THIS TROUGH IS NOT EXPECTED TO BE STRONG ENOUGH TO DENT THE STABLE HIGH PRESSURE. ORZ029>031-181715- /O.CON.KMFR.AS.Y.0001.000000T0000Z-140125T1200Z/ KLAMATH BASIN- NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY- CENTRAL AND EASTERN LAKE COUNTY- INCLUDING THE CITIES OF...ALTAMONT...KLAMATH FALLS...BEATTY... BLY...CHEMULT...CRESCENT...GILCHRIST...SPRAGUE RIVER...LAKEVIEW 305 PM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY. * SYNOPSIS...STRONG HIGH PRESSURE WILL STRENGTHEN AGAIN THIS WEEKEND INTO NEXT WEEK. A TROUGH PASSAGE AROUND THURSDAY MAY WEAKEN THE HIGH PRESSURE SLIGHTLY BUT THIS TROUGH IS NOT EXPECTEDTO BE STRONG ENOUGH TO REMOVE THE STABLE AIR MASS. * LOCATIONS INCLUDE: LAKEVIEW...BEATTY...BLY...CHEMULT... CRESCENT...GILCHRIST...SPRAGUE RIVER. * IMPACTS...THE STRONG INVERSION WILL LIMIT MIXING OF THE AIR. THIS WILL CAUSE AIRBORNE PARTICULATES AND POLLUTANTS TO BE TRAPPED RESULTING IN THE POTENTIAL OF DETERIORATING AIR QUALITY. THOSE SENSITIVE TO DIMINISHED AIR QUALITY SHOULD TAKE PRECAUTIONS TO LIMIT EXPOSURE. * VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5 PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION WILL INCREASE. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 222 PM PST FRI JAN 17 2014 ...STAGNANT CONDITIONS EXPECTED INTO NEXT WEEK... .A RIDGE OF HIGH PRESSURE ALOFT WILL REMAIN NEARLY STATIONARY OVER THE AREA THROUGH THE WEEKEND AND INTO NEXT WEEK. THIS WILL HELP TO CREATE A STRONG TEMPERATURE INVERSION AND LIGHT WINDS THAT WILL TRAP POLLUTANTS NEAR THE SURFACE. AREAS OF DENSE FOG OR FREEZING FOG WILL ALSO BE POSSIBLE AT TIMES DURING THIS PERIOD. ORZ049-505-508-510-511-WAZ026-027-521-181200- /O.CON.KPDT.AS.Y.0001.000000T0000Z-140124T1800Z/ GRANDE RONDE VALLEY-JOHN DAY BASIN- FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON- NORTH CENTRAL OREGON-CENTRAL OREGON-KITTITAS VALLEY-YAKIMA VALLEY- SIMCOE HIGHLANDS- INCLUDING THE CITIES OF...COVE...ELGIN...LA GRANDE...DAYVILLE... JOHN DAY...MITCHELL...MONUMENT...SPRAY...HEPPNER...COND ON... FOSSIL...DUFUR...MAUPIN...BEND...MADRAS...PRINEVIL LE...REDMOND... ELLENSBURG...THORP...NACHES...SUNNYSIDE...TOPPENIS H...YAKIMA... BICKLETON...GOLDENDALE 222 PM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY... AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY. * TIMING: THE AIR STAGNATION ADVISORY WILL CONTINUE THROUGH NEXT WEEK. CONDITIONS WILL BE WORST AT NIGHT BUT NOT MUCH RELIEF IS EXPECTED DURING THE DAYTIME. * IMPACTS: POLLUTION NEAR THE GROUND WILL INCREASE THROUGH THE PERIOD...RESULTING IN DEGRADED AIR QUALITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION WILL INCREASE. CHECK WITH YOUR LOCAL AIR QUALITY AGENCY FOR POSSIBLE RESTRICTIONS IN YOUR AREA. FOR ADDITIONAL WEATHER INFORMATION... CHECK OUR WEBSITE AT WWW.WEATHER.GOV/PENDLETON. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PENDLETON OR 222 PM PST FRI JAN 17 2014 ...STAGNANT CONDITIONS EXPECTED INTO NEXT WEEK... .A RIDGE OF HIGH PRESSURE ALOFT WILL REMAIN NEARLY STATIONARY OVER THE AREA THROUGH THE WEEKEND AND INTO NEXT WEEK. THIS WILL HELP TO CREATE A STRONG TEMPERATURE INVERSION AND LIGHT WINDS THAT WILL TRAP POLLUTANTS NEAR THE SURFACE. AREAS OF DENSE FOG OR FREEZING FOG WILL ALSO BE POSSIBLE AT TIMES DURING THIS PERIOD. ORZ041-044-507-WAZ024-028-029-181200- /O.NEW.KPDT.ZF.Y.0002.140118T0200Z-140118T1800Z/ /O.CON.KPDT.AS.Y.0001.000000T0000Z-140124T1800Z/ EAST COLUMBIA RIVER GORGE OF OREGON- LOWER COLUMBIA BASIN OF OREGON- FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON- EASTERN COLUMBIA RIVER GORGE OF WASHINGTON- LOWER COLUMBIA BASIN OF WASHINGTON- FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITIES OF...ARLINGTON...THE DALLES...BOARDMAN... HERMISTON...IONE...PENDLETON...PILOT ROCK...WHITE SALMON... CONNELL...PROSSER...TRI-CITIES...DAYTON...WAITSBURG...WALLA WALLA 222 PM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY... ...FREEZING FOG ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM PST SATURDAY... THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A FREEZING FOG ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 10 AM PST SATURDAY. AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY. * TIMING: THE AIR STAGNATION ADVISORY WILL CONTINUE THROUGH NEXT WEEK. CONDITIONS WILL BE WORST AT NIGHT BUT NOT MUCH RELIEF IS EXPECTED DURING THE DAYTIME. ALSO AREAS OF DENSE FOG WILL DEVELOP THIS EVENING REDUCING VISIBILITIES TOWARD ONE QUARTER MILE. * IMPACTS: POLLUTION NEAR THE GROUND WILL INCREASE THROUGH THE PERIOD...RESULTING IN DEGRADED AIR QUALITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION WILL INCREASE. CHECK WITH YOUR LOCAL AIR QUALITY AGENCY FOR POSSIBLE RESTRICTIONS IN YOUR AREA. FOR ADDITIONAL WEATHER INFORMATION... CHECK OUR WEBSITE AT WWW.WEATHER.GOV/PENDLETON. A FREEZING FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN... USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. ALSO...BE ALERT FOR FROST ON BRIDGE DECKS CAUSING SLIPPERY ROADS. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PORTLAND OR 1149 AM PST FRI JAN 17 2014 ORZ007-008-182000- /O.EXP.KPQR.FG.Y.0007.000000T0000Z-140117T2000Z/ /O.CON.KPQR.AS.Y.0001.000000T0000Z-140124T1800Z/ CENTRAL WILLAMETTE VALLEY-SOUTH WILLAMETTE VALLEY- INCLUDING THE CITIES OF...SALEM...MCMINNVILLE...EUGENE... CORVALLIS...ALBANY 1149 AM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST NEXT FRIDAY FOR THE CENTRAL AND SOUTHERN WILLAMETTE VALLEY... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY FOR THE CENTRAL AND SOUTHERN WILLAMETTE VALLEY... THE DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY. AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY. * AIR STAGNATION: STRONG INVERSIONS AND LIGHT WINDS WILL ALLOW POLLUTION TO INCREASE ACROSS THE SOUTHERN AND CENTRAL WILLAMETTE VALLEY. * AIR STAGNATION TIMING: THROUGH NEXT FRIDAY MORNING. * LOCATIONS INCLUDE: EUGENE...CORVALLIS...ALBANY...SALEM... MCMINNVILLE * IMPACTS: AIR QUALITY CAN BECOME UNHEALTHFUL AND AFFECT THE YOUNG...ELDERLY AND THOSE WITH RESPIRATORY PROBLEMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY IS ISSUED WHEN LOCALLY ESTABLISHED CRITICAL VALUES OF TRANSPORT WINDS...MIXING HEIGHT...AND VENTILATION ARE EXPECTED TO PERSIST FOR AT LEAST 72 HOURS. THIS PRODUCT WILL BE UPDATED AT LEAST EVERY 24 HOURS WHEN CONDITIONS EXIST OR ARE EXPECTED TO CONTINUE. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PORTLAND OR 1149 AM PST FRI JAN 17 2014 WAZ039-182000- /O.EXP.KPQR.FG.Y.0007.000000T0000Z-140117T2000Z/ /O.CON.KPQR.AS.Y.0001.140118T0300Z-140124T1800Z/ GREATER VANCOUVER AREA- INCLUDING THE CITIES OF...VANCOUVER...BATTLE GROUND...CAMAS... WASHOUGAL 1149 AM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST NEXT FRIDAY FOR CLARK COUNTY... ...DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY FOR CLARK COUNTY... THE DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY. AN AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST FRIDAY. * AIR STAGNATION: STRONG INVERSIONS AND LIGHT WINDS WILL ALLOW POLLUTION TO INCREASE ACROSS CLARK COUNTY. * TIMING...TONIGHT THROUGH NEXT FRIDAY MORNING. * LOCATIONS INCLUDE: VANCOUVER...BATTLE GROUND...CAMAS... WASHOUGAL * IMPACTS: AIR QUALITY CAN BECOME UNHEALTHFUL AND AFFECT THE YOUNG...ELDERLY AND THOSE WITH RESPIRATORY PROBLEMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY IS ISSUED WHEN LOCALLY ESTABLISHED CRITICAL VALUES OF TRANSPORT WINDS...MIXING HEIGHT...AND VENTILATION ARE EXPECTED TO PERSIST FOR AT LEAST 72 HOURS. THIS PRODUCT WILL BE UPDATED AT LEAST EVERY 24 HOURS WHEN CONDITIONS EXIST OR ARE EXPECTED TO CONTINUE. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PORTLAND OR 1149 AM PST FRI JAN 17 2014 ORZ005-WAZ022-182000- /O.CON.KPQR.AS.Y.0001.140118T0300Z-140124T1800Z/ LOWER COLUMBIA-I-5 CORRIDOR IN COWLITZ COUNTY- INCLUDING THE CITIES OF...ST. HELENS...LONGVIEW...KELSO 1149 AM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST FRIDAY FOR THE LOWER COLUMBIA AND INTERSTATE 5 CORRIDOR IN COWLITZ COUNTY... AN AIR STAGNATION ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST FRIDAY. * AIR STAGNATION: STRONG INVERSIONS AND LIGHT WINDS WILL ALLOW POLLUTION TO INCREASE ACROSS THE LOWER COLUMBIA AND INTERSTATE 5 CORRIDOR IN COWLITZ COUNTY. * TIMING: TONIGHT THROUGH NEXT FRIDAY MORNING. * LOCATIONS INCLUDE: ST. HELENS...LONGVIEW...KELSO * IMPACTS: AIR QUALITY CAN BECOME UNHEALTHFUL AND AFFECT THE YOUNG...ELDERLY AND THOSE WITH RESPIRATORY PROBLEMS. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY IS ISSUED WHEN LOCALLY ESTABLISHED CRITICAL VALUES OF TRANSPORT WINDS...MIXING HEIGHT...AND VENTILATION ARE EXPECTED TO PERSIST FOR AT LEAST 72 HOURS. THIS PRODUCT WILL BE UPDATED AT LEAST EVERY 24 HOURS WHEN CONDITIONS EXIST OR ARE EXPECTED TO CONTINUE. && $$<hr>
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SEATTLE WA 821 AM PST FRI JAN 17 2014 WAZ504-505-507>511-181800- /O.EXT.KSEW.AS.Y.0001.000000T0000Z-140124T1800Z/ SOUTHWEST INTERIOR-EAST PUGET SOUND LOWLANDS-EVERETT AND VICINITY- SEATTLE/BREMERTON AREA-TACOMA AREA-ADMIRALTY INLET AREA- HOOD CANAL AREA- 821 AM PST FRI JAN 17 2014 ...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 10 AM PST FRIDAY JANUARY 24... * AIR QUALITY...LOW-LEVEL TEMPERATURE INVERSIONS AND LIGHT WINDS WILL RESULT IN WORSENING OF AIR QUALITY AT TIMES THROUGH NEXT FRIDAY. * IMPACTS...LIMITED MOVEMENT OF THE AIR WILL ALLOW AIR POLLUTANTS TO INCREASE AT TIMES THROUGH NEXT FRIDAY. IMPACTS WILL BE GREATEST ON INDIVIDUALS WITH RESPIRATORY ILLNESSES. * RESTRICTIONS/BURN BANS...CHECK WITH YOUR LOCAL CLEAN AIR AGENCY FOR ANY RESTRICTIONS...SUCH AS BURN BANS...IN YOUR AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN AIR STAGNATION ADVISORY IS BASED ON WEATHER CONDITIONS. IT IS NOT AN AIR POLLUTION ADVISORY OR FORECAST. AIR POLLUTION ADVISORIES AND FORECASTS ARE ISSUED BY AIR QUALITY AGENCIES. THOSE WITH RESPIRATORY AILMENTS SHOULD CONSIDER LIMITING OUTDOOR ACTIVITIES. && $$<hr>
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