WWUS86 KSEW 012216
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
316 PM PDT SAT AUG 1 2009

...VERY DRY AND UNSTABLE CONDITIONS OVER THE MOUNTAINS TODAY...

WAZ652-658-659-661-662-020600-
/O.CON.KSEW.FW.W.0005.000000T0000Z-090802T0600Z/
WEST PORTION OF THE OLYMPIC MOUNTAINS-NORTH CASCADES-
CENTRAL CASCADES-EAST PORTION OF THE OLYMPIC MOUNTAINS-
EAST PORTION OF NORTH CASCADES NATIONAL PARK/LAKE CHELAN NATIONAL
RECREATIONAL AREA-
316 PM PDT SAT AUG 1 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING. 

A DRY LAYER OF AIR NEAR MOUNTAIN TOP LEVEL WAS DRIFTING ACROSS
WESTERN WASHINGTON THIS AFTERNOON. HIGH ELEVATION SITES WERE
ALREADY EXPERIENCING THE ENHANCED DRYNESS...AND STEHEKIN...IN THE
LAKE CHELAN NATIONAL RECREATION AREA...ALREADY HAD RELATIVE
HUMIDITY DOWN TO 11 PERCENT AT 2 PM PDT. THIS DRYNESS COULD EASILY
MIX DOWN INTO MID ELEVATIONS AS LOW AS 2500 FEET DURING THE
REMAINDER OF THE AFTERNOON AND EARLY EVENING...PARTICULARLY OVER
THE INTERIOR OF THE OLYMPIC AND CASCADE MOUNTAIN RANGES. THESE
CONDITIONS WILL CREATE A CRITICAL BURNING ENVIRONMENT WITH THE
POTENTIAL FOR EXTREME FIRE BEHAVIOR AND LARGE FIRE GROWTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE PASS THIS MESSAGE TO FIRE CREWS IN THE FIELD. BE SURE TO
PRACTICE L.C.E.S. AS THE FIRE ENVIRONMENT SHOULD BECOME
ESPECIALLY UNFORGIVING TODAY AND THIS EVENING.

&&

$$