...CRITICAL FIRE WEATHER CONDITIONS EXPECTED FRIDAY NIGHT AND
SATURDAY ACROSS MUCH OF SOUTHWEST WASHINGTON AND NORTHWEST
OREGON...
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING FOR HOT...DRY...AND UNSTABLE CONDITIONS COMBINED
WITH CRITICALLY DRY FUELS...FOR OREGON FIRE WEATHER ZONES 602...
603...604...605...606...607 AND 608...AS WELL AS WASHINGTON FIRE
WEATHER ZONES 602...604 AND 660...
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A FIRE
WEATHER WATCH FOR HOT...DRY...AND UNSTABLE CONDITIONS COMBINED
WITH CRITICALLY DRY FUELS...WHICH IS IN EFFECT FROM FRIDAY
EVENING THROUGH SATURDAY EVENING.
* AFFECTED ZONES...IN OREGON...FIRE WEATHER ZONES 602...603...
604...605...606...607 AND 608. IN WASHINGTON...FIRE WEATHER
ZONES 602...604 AND 660.
* AFFECTED AREA...IN OREGON THIS INCLUDES THE WILLAMETTE VALLEY
AND ADJACENT COAST RANGE AND FOOTHILLS...MOUNT HOOD
NATIONAL
FOREST WEST OF THE CASCADE CREST...AND WILLAMETTE NATIONAL
FOREST. IN WASHINGTON THIS INCLUDES THE EAST WILLAPA
HILLS...
CLARK COUNTY LOWLANDS...AND SOUTH WASHINGTON CASCADES AND
FOOTHILLS INCLUDING GIFFORD PINCHOT NATIONAL FOREST.
* TIMING...FRIDAY NIGHT THROUGH SATURDAY.
* STABILITY...MID-LEVEL HAINES 6 CONDITIONS DEVELOPING FRIDAY
EVENING AND CONTINUING INTO SATURDAY NIGHT.
* RELATIVE HUMIDITY...MINIMUM RELATIVE HUMIDITY 12 TO 20 PERCENT
IN MANY AREAS. OVERNIGHT HUMIDITY RECOVERIES WILL BE POOR
TO
MODERATE ALONG AND ABOVE THERMAL BELTS.
* TEMPERATURES...HIGHS IN THE 90S IN THE LOWLANDS SATURDAY...WITH
UPPER 70S AND 80S IN THE HIGHER ELEVATIONS.
* IMPACTS...THE COMBINATION OF AN INCREASINGLY HOT...DRY...AND
UNSTABLE ENVIRONMENT AND CRITICALLY DRY FUELS MAY POSE A
SIGNIFICANT CHALLENGE TO CONTROL EFFORTS OF ANY EXISTING OR
NEWLY STARTED FIRES. HOLDOVERS FROM RECENT LIGHTNING
STRIKES MAY
ATTEMPT TO GROW INTO LARGER FIRES DURING THIS EVENT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.
