weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Air Stagnation Advisory


URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
131 PM PST FRI JAN 30 2015


ORZ029>031-010000-
/O.CON.KMFR.AS.Y.0001.000000T0000Z-150201T2100Z/
KLAMATH BASIN-
NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY-
CENTRAL AND EASTERN LAKE COUNTY-
INCLUDING THE CITIES OF...ALTAMONT...KLAMATH FALLS...BEATTY...
CRESCENT...GILCHRIST...SPRAGUE RIVER
131 PM PST FRI JAN 30 2015

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST
SUNDAY...

AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST
SUNDAY.

* SYNOPSIS: VALLEY INVERSIONS REMAIN STRONG THROUGH SUNDAY
  MORNING. A FRONT IS EXPECTED TO MOVE THROUGH LATER SUNDAY AND
  SUNDAY NIGHT WHICH WILL DISRUPT THE INVERSIONS AND IMPROVE AIR
  QUALITY.

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

* IMPACTS: AIR QUALITY WILL 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
348 PM MST FRI JAN 30 2015

UTZ001>016-019>021-517-518-WYZ021-312300-
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-
348 PM MST FRI JAN 30 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

WIDESPREAD VALLEY RAIN AND MOUNTAIN SNOW IS EXPECTED THROUGH
TONIGHT ACROSS CENTRAL AND SOUTHERN UTAH...AS A STORM SYSTEM
SLOWLY CROSSES THE DESERT SOUTHWEST. SIGNIFICANT SNOW IS LIKELY
ACROSS THE HIGHER TERRAIN OF CENTRAL AND SOUTHERN UTAH. SNOW
LEVELS WILL GENERALLY REMAIN NEAR 7000 FEET...BUT MAY FALL AS LOW
AS 6500 FEET AT TIMES. PRECIPITATION WILL WIND DOWN FROM NORTH TO
SOUTH LATE TONIGHT THROUGH SATURDAY AS HIGH PRESSURE BUILDS INTO
THE REGION.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A WEATHER SYSTEM BRUSHING BY NORTHERN UTAH WILL BRING A CHANCE
FOR ACCUMULATING SNOW TO THE HIGHER TERRAIN GENERALLY NORTH OF
I-80 MONDAY INTO WEDNESDAY.

.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

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE