811
FNUS75 KGJT 191204
FWSGJT

Spot Forecast for Rainbow Fire...USFS
National Weather Service Grand Junction CO
604 AM MDT Sat Oct 19 2024

Forecast is based on forecast start time of 0600 MDT on October 19.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...A strong fall storm will remain over north-central
Arizona today which will allow for drier conditions across
northwest Colorado, including the fire site. Showers will increase
in coverage on Sunday as this storm system finally lifts
northeast across the area with the chance of wetting precipitation
fairly high on Sunday. Rain will mix with snow at times with
isolated thunderstorms possible. Gusty winds to 35 mph are
possible at times during any storm activity.

.TODAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................0 percent.
Max temperature.....46-51.
Min humidity........44-49 percent.
Wind (20 ft)........Southeast winds 8 to 12 mph with gusts to 20 mph
                    in the afternoon.
Smoke dispersal.....Poor (24000 knot-ft) increasing to fair in the
                    afternoon.
Haines Index........3 or very low.
LAL.................1.
Mixing height.......2400 ft AGL increasing to 5100 ft AGL in the
                    afternoon by peak heating.
Transport winds.....Southeast 13 mph.

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (45-55 percent).
CWR.................0 percent.
Min temperature.....29-34.
Max humidity........76-81 percent.
Wind (20 ft)........Southeast winds 8 to 12 mph.
Smoke dispersal.....Poor (5000 knot-ft).
Haines Index........3 or very low.
LAL.................1.
Mixing height.......Decreasing to 900 ft AGL or less overnight.
Transport winds.....Southeast 10 mph.

.SUNDAY...

Sky/weather.........Partly sunny (45-55 percent) then becoming
                    cloudy (85-95 percent). Scattered rain showers
                    and snow showers in the morning, then rain
                    showers, isolated thunderstorms and snow
                    showers in the afternoon.
CWR.................60 percent.
Max temperature.....41-46.
Min humidity........48-53 percent.
Wind (20 ft)........Southeast winds 8 to 12 mph shifting to the
                    southwest 8 to 12 mph with gusts to 20 mph
                    in the afternoon. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Smoke dispersal.....Fair increasing to good in the afternoon.
Haines Index........4 or low.
LAL.................1 until 1200, then 2 until 1500, then 3.
Mixing height.......Increasing to 5900 ft AGL by peak heating
                    in the afternoon.
Transport winds.....South 13 mph.

$$
Forecaster...Matt Aleksa
Requested by...USFS
Type of request...WILDFIRE
.TAG 2424306.1/GJT
.DELDT 10/19/24
.FormatterVersion 2.0.0
.EMAIL christopher.virruso@usda.gov,michael.carter1@usda.gov,shannon.moore@usda.gov