Wind Advisory 10, NWS Seattle, WA

Issued

Feb 3, 2012, 7:50 AM PST (15:50 UTC)

Expired

Feb 3, 2012, 3:00 PM PST

In force

7 hr

Issued by

NWS Seattle, WA

504 
WWUS76 KSEW 031550
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
750 AM PST FRI FEB 3 2012

...AIR STAGNATION ADVISORY IN EFFECT FROM 6 AM FRIDAY TO 4 PM PST
MONDAY FOR AREAS AROUND SOUTH PUGET SOUND...

.A RIDGE OF HIGH PRESSURE OVER THE PACIFIC NORTHWEST WILL KEEP
THE WEATHER DRY THROUGH MONDAY AND WILL ALLOW A STRONG TEMPERATURE
INVERSION TO FORM. STRONG EAST WINDS ARE EXPECTED NEAR THE CASCADE
FOOTHILLS FROM GOLD BAR TO ENUMCLAW...BUT LIGHT WINDS ARE EXPECTED
ELSEWHERE...ESPECIALLY OVER AREAS AROUND SOUTH PUGET SOUND. IN
PLACES WITH LIGHT WINDS...THE AIR WILL GRADUALLY BECOME STAGNANT
WITH LITTLE MIXING. OVER TIME...POLLUTANTS WILL BUILD UP IN THE
STAGNANT AIR.

WAZ505-032300-
/O.NEW.KSEW.WI.Y.0010.120203T1550Z-120203T2300Z/
EAST PUGET SOUND LOWLANDS-
750 AM PST FRI FEB 3 2012

...WIND ADVISORY IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON. 

* SOME AFFECTED LOCATIONS...NORTH BEND...ENUMCLAW...MAPLE
  VALLEY...BLACK DIAMOND...SNOQUALMIE AND GOLD BAR.

* TIMING...FROM NOW THROUGH EARLY THIS AFTERNOON.

* WIND...EAST WINDS 20 TO 35 MPH...LOCALLY GUSTING 45 TO 55 MPH.

* IMPACTS...LOCALIZED POWER OUTAGES AND SNAPPED TREE BRANCHES ARE
  POSSIBLE. REMAIN AWARE OF CONDITIONS WHEN DRIVING. GIVEN LOCAL
  VARIABILITY OF EAST WINDS...CONDITIONS WILL CHANGE QUICKLY WHEN
  DRIVING OVER SHORT DISTANCES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR
GUSTS OF 45 TO 57 MPH ARE LIKELY.

&&

$$

WAZ504-509-511-512-040000-
/O.CON.KSEW.AS.Y.0002.000000T0000Z-120207T0000Z/
SOUTHWEST INTERIOR-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-
750 AM PST FRI FEB 3 2012

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY...

* AIR QUALITY...LIKELY TO DETERIORATE AS THE PERIOD OF STAGNANT 
  AIR CONTINUES. 

* RESTRICTIONS/BURN BANS...CONTACT YOUR LOCAL AIR POLLUTION 
  CONTROL AGENCY FOR INFORMATION ABOUT POTENTIAL BURN BANS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN AIR STAGNATION ADVISORY MEANS THAT LIMITED MOVEMENT OF THE AIR
MASS OVER THE ADVISORY AREA WILL ALLOW POLLUTION TO INCREASE TO
DANGEROUS LEVELS. PERSONS WITH RESPIRATORY ILLNESS SHOULD FOLLOW
THEIR PHYSICIANS ADVICE FOR DEALING WITH HIGH LEVELS OF AIR
POLLUTION.

&&

$$

633 
WWUS76 KSEW 032318
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
318 PM PST FRI FEB 3 2012

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY FOR AREAS AROUND SOUTH PUGET SOUND...

.A RIDGE OF HIGH PRESSURE OVER THE PACIFIC NORTHWEST WILL KEEP
THE WEATHER DRY THROUGH MONDAY AND WILL ALLOW A STRONG
TEMPERATURE INVERSION TO FORM. GUSTY EAST WINDS ARE EXPECTED NEAR
THE CASCADE FOOTHILLS FROM GOLD BAR TO ENUMCLAW...BUT LIGHT WINDS
ARE EXPECTED ELSEWHERE...ESPECIALLY OVER AREAS AROUND SOUTH PUGET
SOUND. IN PLACES WITH LIGHT WINDS...THE AIR WILL GRADUALLY BECOME
STAGNANT WITH LITTLE MIXING. OVER TIME...POLLUTANTS WILL BUILD UP
IN THE STAGNANT AIR.

WAZ505-040030-
/O.EXP.KSEW.WI.Y.0010.000000T0000Z-120203T2300Z/
EAST PUGET SOUND LOWLANDS-
318 PM PST FRI FEB 3 2012

...WIND ADVISORY HAS EXPIRED...

BREEZY AND GUSTY WIND CONDITIONS WILL CONTINUE TONIGHT NEAR THE
CASCADE FOOTHILLS...BUT SPEEDS HAVE FALLEN BELOW WIND ADVISORY
CRITERIA AND ARE NOT EXPECTED TO REACH WIND ADVISORY CRITERIA
AGAIN THROUGH TONIGHT.

$$

WAZ504-509-511-512-041300-
/O.CON.KSEW.AS.Y.0002.000000T0000Z-120207T0000Z/
SOUTHWEST INTERIOR-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-
318 PM PST FRI FEB 3 2012

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY...

* AIR QUALITY...LIKELY TO DETERIORATE AS THE PERIOD OF STAGNANT 
  AIR CONTINUES. 

* RESTRICTIONS/BURN BANS...CONTACT YOUR LOCAL AIR POLLUTION 
  CONTROL AGENCY FOR INFORMATION ABOUT POTENTIAL BURN BANS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN AIR STAGNATION ADVISORY MEANS THAT LIMITED MOVEMENT OF THE AIR
MASS OVER THE ADVISORY AREA WILL ALLOW POLLUTION TO INCREASE TO
DANGEROUS LEVELS. PERSONS WITH RESPIRATORY ILLNESS SHOULD FOLLOW
THEIR PHYSICIANS ADVICE FOR DEALING WITH HIGH LEVELS OF AIR
POLLUTION.

&&

$$

Wind Advisories in Washington, 2012Every wind advisory in 2012

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.