990
FNUS75 KBYZ 300446
FWSBYZ

Spot Forecast for BO Fire...Billings Dispatch
National Weather Service Billings MT
1046 PM MDT Sat Jun 29 2024

Forecast is based on forecast start time of 2300 MDT on June 29.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions
or concerns with this forecast.

.DISCUSSION...

Tonight will be mild with good humidity recoveries and decreasing
winds. Sunday afternoon will see a cold front pass through the
fire site between 4PM - 8PM, shifting northeast winds to the
northwest and bringing gusts up to 40 mph. This frontal passage
also brings a small chance for thunderstorms, but with most storms
staying to the north. Winds will decrease after sunset for
another night of good humidity recoveries.

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1...no thunderstorms.
Min temperature.....50-54.
Max humidity........72-76 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 9 to 13 mph, becoming
                    northwest 5 to 8 mph overnight.
 Ridgetop...........Southeast winds 12 to 16, decreasing to
                    5 to 8 mph overnight.
Mixing height.......Decreasing to 500 ft AGL overnight.
Transport winds.....Northeast winds 10 to 16 mph.

.SUNDAY...

Sky/weather.........Mostly sunny. Cold front. Slight chance of showers and
                    thunderstorms in the afternoon.
CWR.................5 percent.
LAL.................2...1 to 8 strikes/15 min/cell.
Max temperature.....88-92.
Min humidity........24-30 percent.
Wind (20 ft)........
 Slope/valley.......Northeast winds 7 to 12 mph, becoming
                    northwest 20 to 25 mph with gusts to 40 mph in the late afternoon.
                    Gusty and erratic winds expected near thunderstorms
                    in the afternoon.
 Ridgetop...........Northeast winds 7 to 12 mph, becoming
                    northwest 20 to 25 mph with gusts to 40 mph in the late afternoon.
                    Gusty and erratic winds expected near thunderstorms
                    in the afternoon.
Mixing height.......500 ft AGL early in the morning increasing to
                    4400 ft AGL in the afternoon.
Transport winds.....Northeast winds 10 to 12 mph, becoming northwest 20 to 25 mph
                    in the late afternoon.
Haines index........5.

.SUNDAY NIGHT...

Sky/weather.........Mostly cloudy. Chance of thunderstorms in the
                    evening. Chance of showers through the night.
                    Slight chance of thunderstorms overnight.
CWR.................10 percent.
LAL.................3...9 to 15 strikes/15 min/cell.
Min temperature.....57-61.
Max humidity........70-75 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 15 to 20 mph with gusts to 30 mph, becoming
                    west 5 to 8 mph by midnight. Gusty and erratic
                    winds expected near thunderstorms.
 Ridgetop...........Northwest winds 15 to 20 mph with gusts to 30 mph, becoming
                    west 5 to 8 mph by midnight. Gusty and erratic
                    winds expected near thunderstorms.
Mixing height.......4400 ft AGL early in the evening decreasing to
                    400 ft AGL overnight.
Transport winds.....North winds 15 to 20 mph becoming 8 to 12 mph by midnight.

$$
Forecaster...Vertz
Requested by...Billings Dispatch
Type of request...WILDFIRE
.TAG 2416929.1/BYZ
.DELDT 06/29/24
.FormatterVersion 2.0.0
.EMAIL mtbdc@firenet.gov