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2 products issued by NWS for:

Air Stagnation Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
316 AM PST WED JAN 28 2015

ORZ024-026-290000-
/O.NEW.KMFR.FG.Y.0009.150128T1116Z-150128T1800Z/
/O.CON.KMFR.AS.Y.0001.000000T0000Z-150131T2100Z/
EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY-
INCLUDING THE CITIES OF...GRANTS PASS...CAVE JUNCTION...MEDFORD...
ASHLAND
316 AM PST WED JAN 28 2015

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A DENSE FOG
ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST THIS MORNING. AN
AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST
SATURDAY.

* DENSE FOG: AREAS OF DENSE ARE EXPECTED IN THE
  ROGUE...APPLEGATE...AND ILLINOIS VALLEYS THIS
  MORNING...ESPECIALLY ALONG INTERSTATE 5 FROM MEDFORD TO GRANTS
  PASS. EXPECT SIGNIFICANTLY REDUCED VISIBILITY TO EFFECT
  DRIVING.

* SYNOPSIS: HIGH PRESSURE WILL CONTINUE OVER THE REGION THROUGH AT
  LEAST SATURDAY MORNING CONTINUING LOW LEVEL INVERSIONS AND
  GENERALLY STAGNANT AIR. THE HIGH WILL WEAKEN SLIGHTLY TODAY
  RESULTING IN SOME IMPROVEMENT IN VERTICAL MIXING...BUT NOT
  ENOUGH TO COMPLETELY MIX OUT THE STAGNANT AIR IN THE WEST SIDE
  VALLEYS. THE INVERSION IS EXPECTED TO STRENGTHEN AGAIN TONIGHT
  INTO THE WEEKEND BEFORE DISSIPATING EARLY NEXT WEEK.

* LOCATIONS INCLUDE: GRANTS PASS...CAVE JUNCTION...MEDFORD...
  ASHLAND...DRAIN...ELKTON...ROSEBURG...SUTHERLIN...GREEN...
  MYRTLE CREEK...CANYONVILLE.

* IMPACTS: AIR QUALITY WILL DETERIORATE IF SIGNIFICANT
  POLLUTION PARTICULATES ACCUMULATE. THESE PARTICULATES COULD
  MAKE BREATHING MORE DIFFICULT FOR THOSE WITH RESPIRATORY
  AILMENTS.

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

AN AIR STAGNATION ADVISORY INDICATES THAT...DUE TO LIMITED
MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION
COULD INCREASE TO LEVELS THAT AFFECT HEALTH.

&&

$$



Dense Fog Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
316 AM PST WED JAN 28 2015

ORZ024-026-290000-
/O.NEW.KMFR.FG.Y.0009.150128T1116Z-150128T1800Z/
/O.CON.KMFR.AS.Y.0001.000000T0000Z-150131T2100Z/
EASTERN CURRY COUNTY AND JOSEPHINE COUNTY-JACKSON COUNTY-
INCLUDING THE CITIES OF...GRANTS PASS...CAVE JUNCTION...MEDFORD...
ASHLAND
316 AM PST WED JAN 28 2015

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A DENSE FOG
ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST THIS MORNING. AN
AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST
SATURDAY.

* DENSE FOG: AREAS OF DENSE ARE EXPECTED IN THE
  ROGUE...APPLEGATE...AND ILLINOIS VALLEYS THIS
  MORNING...ESPECIALLY ALONG INTERSTATE 5 FROM MEDFORD TO GRANTS
  PASS. EXPECT SIGNIFICANTLY REDUCED VISIBILITY TO EFFECT
  DRIVING.

* SYNOPSIS: HIGH PRESSURE WILL CONTINUE OVER THE REGION THROUGH AT
  LEAST SATURDAY MORNING CONTINUING LOW LEVEL INVERSIONS AND
  GENERALLY STAGNANT AIR. THE HIGH WILL WEAKEN SLIGHTLY TODAY
  RESULTING IN SOME IMPROVEMENT IN VERTICAL MIXING...BUT NOT
  ENOUGH TO COMPLETELY MIX OUT THE STAGNANT AIR IN THE WEST SIDE
  VALLEYS. THE INVERSION IS EXPECTED TO STRENGTHEN AGAIN TONIGHT
  INTO THE WEEKEND BEFORE DISSIPATING EARLY NEXT WEEK.

* LOCATIONS INCLUDE: GRANTS PASS...CAVE JUNCTION...MEDFORD...
  ASHLAND...DRAIN...ELKTON...ROSEBURG...SUTHERLIN...GREEN...
  MYRTLE CREEK...CANYONVILLE.

* IMPACTS: AIR QUALITY WILL DETERIORATE IF SIGNIFICANT
  POLLUTION PARTICULATES ACCUMULATE. THESE PARTICULATES COULD
  MAKE BREATHING MORE DIFFICULT FOR THOSE WITH RESPIRATORY
  AILMENTS.

* VIEW THE HAZARD AREA IN DETAIL AT HTTP://GO.USA.GOV/ZYV5

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

AN AIR STAGNATION ADVISORY INDICATES THAT...DUE TO LIMITED
MOVEMENT OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION
COULD INCREASE TO LEVELS THAT AFFECT HEALTH.

&&

$$



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Page last modified: May 16, 2007
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