Suppression Forecast
Issued by NWS Salt Lake City, UT

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FNUS75 KSLC 161345
FWSSLC

Spot Forecast for Beaver Ranger District Slash Piles
National Weather Service Salt Lake City UT
645 AM MST Sat Dec 16 2017

.DISCUSSION...High pressure aloft will expand east from the eastern
Pacific and across Utah for Sunday through Tuesday. Cold temperatures
Sunday will warm substantially through Tuesday. Humidities will be
trending downward during the same period. A cold and energetic Pacific
storm system will reach southern Utah by late Wednesday.

Clearing indices look to be restrictive for burn operations Sunday
and Monday. The issue will be very light transport winds both days.
Add to this a fairly stable air mass and the result will be low
clearing indices. Conditions will begin to improve Tuesday as
transport winds increase ahead of the next Pacific storm system
scheduled to arrive late Wednesday. This next storm system will
bring a strong cold front to the burn site late Wednesday. Strong
transport winds ahead of the front and an increased mixing depth
will produce high clearing indices during the day Wednesday.

.SUNDAY...

Sky/weather.........Partly cloudy (50-60 percent cloud cover). A
                    slight chance of snow early in the morning.
Chance of pcpn......20 percent.
CWR.................0 percent.
LAL.................1.
Max temperature.....27-29.
Min humidity........63-65%.
Wind (20 ft)........North winds 7-10 mph.
Clearing index......380.
Haines Index........2 ..very low.

.SUNDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent cloud cover).
Chance of pcpn......0 percent.
CWR.................0 percent.
LAL.................1.
Min temperature.....15-17.
Max humidity........86-89%.
Wind (20 ft)........Downslope 2-5 mph.
Haines Index........3 ..very low.

.MONDAY...

Sky/weather.........Partly cloudy (25-35 percent cloud cover) then
                    becoming sunny (10-20 percent cloud cover).
Chance of pcpn......0 percent.
CWR.................0 percent.
LAL.................1.
Max temperature.....36-38.
Min humidity........34-36%.
Wind (20 ft)........North winds 2-5 mph, increasing to 5-10 mph
                    after 1400.
Clearing index......250 in the morning, 450 in the afternoon.
Haines Index........2 ..very low.

$$
Forecaster...Conger
Requested by...Cory Norman
Type of request...PRESCRIBED
.TAG 1719661.4/SLC



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