FNUS76 KMFR 230252
FWSMFR

SPOT FORECAST FOR THORN PRAIRIE...USFS UMPQUA NATIONAL FOREST
NATIONAL WEATHER SERVICE MEDFORD OR
752 PM PDT MON APR 22 2013

FORECAST IS BASED ON IGNITION TIME OF 1400 PDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...THE WARMING TREND WILL CONTINUE INTO THURSDAY BUT
WEDNESDAY WILL HAVE THE LOWEST HUMIDITY. THERE WILL BE A BRIEF BREAK
IN EASTERLY FLOW TUESDAY AFTERNOON AS THE WIND DECREASES AND BACKS TO
THE NORTH. WINDS WILL VEER BACK TO EAST EARLY WEDNESDAY MORNING THEN
BECOME STRONGER THAN THEY WERE ON MONDAY AND REMAIN EAST INTO WEDNESDAY
EVENING. A THERMAL TROUGH WILL MOVE INLAND THURSDAY WITH ONSHORE FLOW
DEVELOPING. THE IMPROVEMENT IN MINIMUM HUMIDITY WILL BE VERY SMALL ON
THURSDAY BUT IT WILL LIKELY START A TREND OF GRADUAL IMPROVEMENT THROUGH
THE WEEKEND. SKIES WILL BE SUNNY UNTIL SOME HIGH CLOUDS ARRIVE LATE
THURSDAY.


.TUESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........18 PERCENT.
EYE LEVEL WINDS.....EAST WINDS AROUND 5 MPH DECREASING TOWARD NOON
                    THEN SHIFTING TO THE NORTH AND BECOMING 5 TO 8 MPH
                    IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL INCREASING TO 4500 FT AGL
                    LATE IN THE MORNING.
MIXING WINDS........EAST AROUND 12 MPH BECOMING NORTH 14 MPH IN
                    THE AFTERNOON.
CWR.................0 PERCENT.

.TUESDAY NIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....AROUND 33.
MAX HUMIDITY........88 PERCENT.
EYE LEVEL WINDS.....NORTHEAST WINDS AROUND 5 MPH SHIFTING TO THE EAST
                    AFTER MIDNIGHT.
MIXING HEIGHT.......4500 FT AGL DECREASING TO 500 FT AGL EARLY IN
                    THE EVENING.
MIXING WINDS........NORTHEAST AROUND 15 MPH BECOMING EAST.
CWR.................0 PERCENT.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........17 PERCENT.
EYE LEVEL WINDS.....EAST WINDS 7 TO 10 MPH WITH GUSTS TO 15 MPH.
MIXING HEIGHT.......500 FT AGL INCREASING TO 6000 FT AGL.
MIXING WINDS........EAST AROUND 25 MPH DECREASING LATE TO 15 MPH.
CWR.................0 PERCENT.

$$
FORECASTER...WEYGAND
REQUESTED BY...STACY AINSLIE
TYPE OF REQUEST...PRESCRIBED
.TAG 20130423.THORN.01/MFR