FNUS76 KPDT 181913
FWSPDT

SPOT FORECAST FOR JACK KNIFE...USFS MAF
NATIONAL WEATHER SERVICE PENDLETON OR
1215 PM PDT WED AUG 18 2010

FORECAST IS BASED ON REQUEST TIME OF 1147 PDT ON AUGUST 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR
THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING...

.DISCUSSION...LINGERING MOISTURE AND INSTABILITY FROM LAST NIGHT'S
STORM SYSTEM WILL AIDE IN ADDITIONAL THUNDERSTORMS THIS AFTERNOON
AND EVENING...ALTHOUGH THE NUMBER OF STRIKES SHOULD BE LESS THAN
LAST NIGHT. STORMS WILL END IN THE LATE EVENING. A DRIER WESTERLY
FLOW WILL FOLLOW ON THURSDAY...AND GUSTY RIDGETOP WINDS ARE
EXPECTED.

***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
***FORECAST IS VALID FOR 12 HOURS AFTER ISSUANCE***

.REST OF TODAY...

SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS
                    AND THUNDERSTORMS.
CWR.................20.
MAX TEMPERATURE.....78.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........SOUTH WINDS 1-3 MPH.
 UPR SLP/RIDGETOP...WEST 12-20 MPH.
LAL.................3.
HAINES INDEX........3 (VERY LOW).

.TONIGHT...

SKY/WEATHER.........BECOMING MOSTLY CLEAR. A CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE EVENING.
CWR.................10.
MIN TEMPERATURE.....48.
MAX HUMIDITY........59 PERCENT.
WIND (20 FT)........SOUTH WINDS 0-2 MPH...BECOMING NORTHWEST 5-10
                    MPH.
 UPR SLP/RIDGETOP...NORTHWEST WINDS 12-20 MPH...DECREASING TO 6-13
                    MPH OVERNIGHT.
LAL.................2.
HAINES INDEX........3 (VERY LOW).

.THURSDAY...

SKY/WEATHER.........SUNNY.
CWR.................0.
MAX TEMPERATURE.....76.
MIN HUMIDITY........18 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 3-6 MPH.
 UPR SLP/RIDGETOP...NORTHWEST WINDS 6-12 MPH...INCREASING TO 18-25
                    MPH WITH GUSTS TO 40 MPH AFTER 12 PM.
LAL.................1.
HAINES INDEX........4 (LOW).

$$

FORECASTER...MARY JOHNSON
REQUESTED BY...BICC
TYPE OF REQUEST...WILDFIRE
.TAG 20100818.JACKK.01/PDT