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000
FNUS76 KMFR 202149
FWSMFR

Spot Forecast for Slater and Devil...NW IMT #7
National Weather Service Medford OR
249 PM PDT Tue Oct 20 2020

Forecast is based on forecast start time of 0600 PDT on October 21.
If conditions become unrepresentative...contact the National Weather
Service.

...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
FRIDAY MORNING...

.DISCUSSION...A front will move through the burn site overnight.
This will keep temperatures cooler than yesterday and humidities
somewhat higher. Winds will be relatively moderate, especially across
the upper slopes and ridges. This will continue overnight on Wednesday.
The big question into Thursday will be how quickly the humidities drop.
Trends are looking like the east winds will be strong enough for
critical fire weather conditions, and should the humidities decrease
quickly enough, we could see red flag conditions on the fire. Thus,
have issued a fire weather watch for the fire, especially for the
upper slopes and ridges. Beginning Friday, lower temperatures and
higher humidities will move back into the area over the weekend before
and extended period of east winds and increasingly dry conditions
begin again next week.

.WEDNESDAY...

Sky/weather.........Partly cloudy in the morning then becoming
                    sunny.
Max temperature.....Slopes and Valleys: 63 to 70 degrees.
                    Ridges and Peaks: 56 to 51 degrees.

Min humidity........Slopes and Valleys:35 to 40 percent.
                    Ridges and Peaks: 53 to 58 percent.

Wind (20 ft)........Slopes and valleys: North 0 to 3 mph becoming
                    3 to 5 mph in the afternoon.
                    Ridges and Peaks: North 2 to 4 mph becoming
                    northeast 7 to 15 mph in the afternoon. Gusts to
                    20 mph.

Transport winds.....Northeast around 17 mph.
CWR.................0 percent.
LAL.................1.
Mixing height.......Near the surface and increasing to around 3000
                    ft AGL early in the afternoon.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....Slopes and Valleys: 31 to 35 degrees.
                    Ridges and Peaks: 37 to 34 degrees

Max humidity........Slopes and Valleys: 85 to 90 percent.
                    Ridges and Peaks: 70 to 75 percent.

Wind (20 ft)........Slopes and Valleys: Northeast 3 to 5 mph becoming
                    1 to 3 mph after midnight.
                    Ridges and Peaks: Northeast 6 to 14 mph with
                    gusts to around 21 mph decreasing to 4 to 8
                    mph after midnight.

Transport winds.....Northeast around 14 mph.
CWR.................0 percent.
LAL.................1.
Mixing height.......Near the surface increasing to near 3000
                    in the early afternoon.

$$
Forecaster...SCHAAF
Requested by...FBAN
Type of request...WILDFIRE
.TAG 2013688.5/MFR
.DELDT 10/20/20