975
FNUS76 KSTO 310003
FWSSTO

Spot Forecast for D54 Pile Burn...USDA Forest Service
National Weather Service Sacramento CA
403 PM PST Thu Jan 30 2025

Forecast is based on ignition time of 0700 PST on January 31.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
A shift toward a prolonged period of more active weather is
expected through the end of the week, across the weekend, and into
next week as a series of atmospheric rivers impacts the region.
Isolated showers will begin to pop up in the morning, with more
widespread rainfall then expected later in the day on Friday and
into Saturday. As rainfall becomes more widespread, heaviest
rainfall near the burn area is expected late Friday evening
through Saturday. Snow levels through the end of the week and into
the weekend look to remain generally above 6000 feet at this
time. Current probabilities of rainfall exceeding 1 inch through
Saturday evening sit around 90 percent, with 30 to 40 percent
probabilities of exceeding 3 inches near the burn area during the
same timeframe. Southerly winds expected to become sustained and
breezy around 10 mph through the weekend as the system moves in.

.FRIDAY...

Sky/weather.........Mostly cloudy. Rain showers in the afternoon.
Max temperature.....50-55.
Min humidity........48-53 percent.
Wind (20 ft)........
 Slope/valley.......East-southeast winds 5 to 7 mph.
Mixing height.......Near 600 ft AGL in the morning, rising to near
                    1400 ft AGL by the afternoon.
Transport winds.....Southeast around 6 mph.
Chance of thunder...0 percent.

.FRIDAY NIGHT...

Sky/weather.........Cloudy. Rain showers.
Min temperature.....30-35.
Max humidity........95-100 percent.
Wind (20 ft)........
 Slope/valley.......South-southeast winds up to 5 mph.
Mixing height.......Falling to near 600 ft AGL overnight.
Transport winds.....South-southeast around 7 mph.
Chance of thunder...0 percent.

.SATURDAY...

Sky/weather.........Cloudy. Rain showers.
Max temperature.....45-50.
Min humidity........90-95 percent.
Wind (20 ft)........
 Slope/valley.......South winds 5 to 7 mph.
Mixing height.......Rising to near 1200 ft AGL by the afternoon.
Transport winds.....South around 12 mph.
Chance of thunder...0 percent.

$$
Forecaster...NR
Requested by...David Reynolds
Type of request...PRESCRIBED
.TAG 2501921.0/STO
.DELDT 01/31/25
.FormatterVersion 2.0.0
.EMAIL david.reynolds@usda.gov