weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

2 products issued by NWS for:

Air Stagnation Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
1001 AM PST SAT FEB 13 2016

...AIR STAGNATION ADVISORIES REMAIN IN EFFECT FOR THE EAST SLOPES
OF THE NORTHERN CASCADES AND OKANOGAN VALLEY...

WAZ042-043-141900-
/O.CON.KOTX.AS.Y.0001.000000T0000Z-160216T1800Z/
EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-
1001 AM PST SAT FEB 13 2016

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY...

* AIR QUALITY...LIGHT WINDS AND TEMPERATURE INVERSIONS WILL
  HEIGHTEN THE POTENTIAL FOR ELEVATED POLLUTION LEVELS IN CENTRAL
  WASHINGTON WASHINGTON THROUGH TUESDAY. A WARM FRONT WILL PRODUCE
  A CHANCE OF LIGHT PRECIPITATION TONIGHT OVER NORTH CENTRAL
  WASHINGTON...BUT WINDS WILL LIKELY REMAIN LIGHT. A STRONGER
  FRONTAL SYSTEM ON SUNDAY NIGHT AND MONDAY MAY PRODUCE ENOUGH
  WIND FOR THE AIR STAGNATION ADVISORY TO BE DISCONTINUED.

* IMPACTS...BURN BANS MAY BE IN EFFECT FOR YOUR AREA. PLEASE
  CONSULT YOUR STATE OR TRIBAL AUTHORITIES BEFORE BURNING.

* LOCATIONS...A FEW COMMUNITIES INCLUDED IN THE AIR STAGNATION
  ADVISORY ARE OMAK...WINTHROP...MAZAMA...AND LEAVENWORTH.

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.

&&

$$




Hydrologic Outlook

HYDROLOGIC OUTLOOK
IDZ001>004-WAZ037-038-041>044-142300-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
255 PM PST SAT FEB 13 2016

...MILD, WET, AND BREEZY CONDITIONS MAY LEAD TO STREAM RISES...

AN UNSETTLED WEATHER PATTERN WILL CONTINUE THROUGH THE WEEKEND AND
INTO EARLY NEXT WEEK. EXPECT RISING SNOW LEVELS AND MILD
TEMPERATURES LEADING TO MELTING OF THE MID AND LOW ELEVATION SNOW.
THE SNOW MELT IN COMBINATION WITH RAIN MAY LEAD TO RISES ON MANY
OF THE AREA`S STREAMS. TEMPERATURES ON MONDAY...TUESDAY AND
WEDNESDAY ARE FORECAST TO BRING EVEN WARMER TEMPERATURES WITH SOME
NEAR RECORD HIGHS POSSIBLE. TEMPERATURES ALONG WITH WARM WINDS
WILL AID IN INCREASING SNOWMELT.

THE COEUR D`ALENE, ST JOE, PALOUSE, AND LITTLE SPOKANE RIVERS AND
THEIR FEEDER STREAMS CAN EXPECT RISES THROUGH MID WEEK. OTHER
AREAS EXPECTED TO BE MOST IMPACTED BY MELTING SNOW ARE THOSE WITH
SIGNIFICANT LOW AND MID LEVEL ELEVATION SNOW COVERAGE, NAMELY THE
WATERVILLE PLATEAU AND PALISADES CREEK AREA, AS WELL AS THE
VALLEYS OF NORTHERN WASHINGTON AND IDAHO. FORTUNATELY MOST OF THE
SOILS IN THE AFFECTED AREAS ARE NOT FROZEN AND WILL BE ABLE TO
ABSORB SOME OF THE SNOWMELT RUNOFF.

MAIN IMPACTS WILL BE PONDING AND NUISANCE FLOODING IN LOW LYING
AREAS WITH POOR DRAINAGE OR DUE TO SNOW-CLOGGED STORM DRAINS AND
CULVERTS.

THIS IS AN EVOLVING SITUATION AND FORECASTS MAY CHANGE AS THE
WE GET CLOSER TO THE PERIOD OF INTEREST. THOSE WITH INTERESTS ALONG
RIVERS AND STREAMS OR IMPACTED AREAS SHOULD BE AWARE OF FUTURE
OUTLOOKS, WATCHES, OR WARNINGS FROM THE NATIONAL WEATHER SERVICE.

TO VIEW CURRENT RIVER FORECASTS:
HTTP://WATER.WEATHER.GOV/AHPS2/INDEX.PHP?WFO=OTX

$$




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: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE