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Dense Fog Advisory


URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
651 AM PST TUE JAN 27 2015

ORZ041-044-507-508-510-WAZ024-026>029-521-272000-
/O.CON.KPDT.FG.Y.0007.000000T0000Z-150127T2000Z/
EAST COLUMBIA RIVER GORGE OF OREGON-
LOWER COLUMBIA BASIN OF OREGON-
FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTH CENTRAL OREGON-EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-
KITTITAS VALLEY-YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-SIMCOE HIGHLANDS-
INCLUDING THE CITIES OF...ARLINGTON...THE DALLES...BOARDMAN...
HERMISTON...IONE...PENDLETON...PILOT ROCK...HEPPNER...CONDON...
FOSSIL...DUFUR...MAUPIN...WHITE SALMON...ELLENSBURG...THORP...
NACHES...SUNNYSIDE...TOPPENISH...YAKIMA...CONNELL...PROSSER...
TRI-CITIES...DAYTON...WAITSBURG...WALLA WALLA...GOLDENDALE
651 AM PST TUE JAN 27 2015

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

A DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY.

* VISIBILITY: AREAS OF VISIBILITY LESS THAN ONE QUARTER MILE
  THROUGH NOON TODAY.

* IMPACTS: LIMITED VISIBILITY WILL IMPACT TRAVEL CONDITIONS.

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.

&&

$$

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
140 AM MST TUE JAN 27 2015

...AREAS OF DENSE FOG ACROSS SOUTHEAST OREGON AND SOUTHWEST IDAHO
THIS MORNING...

.DENSE FOG HAS FORMED ACROSS PARTS OF SOUTHEAST OREGON AND
SOUTHWEST IDAHO THIS MORNING. VISIBILITIES OF ONE QUARTER MILE OR
LESS ARE BEING OBSERVED IN HARNEY AND MALHEUR COUNTIES IN OREGON
AND THE TREASURE AND WEISER VALLEYS IN IDAHO. TEMPERATURES ARE
BELOW FREEZING WHICH WOULD ALLOW FOR ICY CONDITIONS TO DEVELOP ON
ROADWAYS. THE COMBINATION OF LOW VISIBILITY AND PATCHES OF BLACK
ICE WILL MAKE FOR HAZARDOUS TRAVEL CONDITIONS. VISIBILITY WILL
IMPROVE BY LATE MORNING.

IDZ012-014-033-ORZ061-063-064-271800-
/O.NEW.KBOI.FG.Y.0010.150127T0840Z-150127T1800Z/
LOWER TREASURE VALLEY ID-UPPER TREASURE VALLEY-UPPER WEISER RIVER-
HARNEY COUNTY-MALHEUR COUNTY-LOWER TREASURE VALLEY OR-
140 AM MST TUE JAN 27 2015

...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM MST /10 AM PST/ THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A DENSE FOG
ADVISORY FOR THE TREASURE VALLEY...WEISER VALLEY...HARNEY COUNTY
AND MALHEUR COUNTY...WHICH IS IN EFFECT UNTIL 11 AM MST /10 AM
PST/ THIS MORNING.

* VISIBILITY...ONE QUARTER MILE OR LESS.

* IMPACTS...REDUCED VISIBILITY AND PATCHES OF BLACK ICE WILL MAKE
 FOR HAZARDOUS TRAVEL CONDITIONS.

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.

&&

$$


Air Stagnation Advisory


URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
430 AM PST TUE JAN 27 2015


ORZ029>031-271900-
/O.CON.KMFR.AS.Y.0001.000000T0000Z-150127T1900Z/
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...CRESCENT...GILCHRIST...SPRAGUE RIVER...LAKEVIEW
430 AM PST TUE JAN 27 2015

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS
MORNING...

AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS
MORNING.

* SYNOPSIS: HIGH PRESSURE WILL CONTINUE OVER THE REGION THROUGH
  AT THIS MORNING CONTINUING LOW LEVEL INVERSIONS AND GENERALLY
  STAGNANT AIR. THE HIGH WILL WEAKEN ENOUGH LATE THIS MORNING
  THROUGH WEDNESDAY TO MIX OUT THE AIR MASS IN THE EAST SIDE
  VALLEYS.

* LOCATIONS INCLUDE: BEATTY...BLY...CRESCENT...GILCHRIST...
  SPRAGUE RIVER...LAKEVIEW...ALTAMONT...KLAMATH FALLS.

* IMPACTS: AIR QUALITY COULD DETERIORATE IF SIGNIFICANT
  PARTICULATES FROM POLLUTION ACCUMULATE. THESE CONDITIONS
  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...

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.

$$


Hazardous Weather Outlook


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
550 AM MST TUE JAN 27 2015

UTZ001>016-019>021-517-518-WYZ021-281300-
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS-
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS-
SOUTHERN MOUNTAINS-SOUTHWEST WYOMING-
550 AM MST TUE JAN 27 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH AND SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

VALLEY RAIN AND MOUNTAIN SNOW SHOWERS WILL SPREAD FROM SOUTH TO
NORTH ACROSS THE OUTLOOK AREA TODAY. A COUPLE OF INCHES OF
SNOWFALL ARE POSSIBLE AT THE HIGHER ELEVATIONS. PRECIPITATION WILL
FOCUS ACROSS THE NORTH TONIGHT...WHERE ADDITIONAL SNOW
ACCUMULATION CAN BE EXPECTED ABOVE AROUND SIX THOUSAND FEET.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

VALLEY RAIN AND MOUNTAIN SNOW SHOWERS WILL LINGER INTO THE MORNING
HOURS WEDNESDAY ACROSS NORTHERN UTAH...WITH THE BEST CHANCE COMING
NORTH OF I-80.

A NEW STORM SYSTEM WILL SETTLE INTO THE DESERT SOUTHWEST AND
SOUTHERN GREAT BASIN THURSDAY NIGHT. THIS NEXT STORM WILL IMPACT
MAINLY THE SOUTHERN TWO THIRDS OF UTAH WITH WIDESPREAD MOUNTAIN
SNOW AND RAIN OR RAIN AND SNOW MIXED IN THE VALLEYS. SIGNIFICANT
SNOWFALL IS POSSIBLE IN THE SOUTHERN AND CENTRAL MOUNTAINS THROUGH
SATURDAY. RETURNING HIGH PRESSURE WILL BRING AN END TO
PRECIPITATION ON SUNDAY.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

$$

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/ (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX

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E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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