605
FNUS75 KBYZ 142308
FWSBYZ

Spot Forecast for Line Fire...BLM
National Weather Service Billings MT
508 PM MDT Sun Jul 14 2024

Forecast is based on forecast start time of 1700 MDT on July 14.
If conditions become unrepresentative...contact the National Weather
Service.

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

...HEAT ADVISORY IN EFFECT UNTIL 9 PM MDT THIS EVENING...

.DISCUSSION...

Expect northwest winds currently gusting 15 to 20 mph to turn
more north through the early evening with gusts to 25 mph as a
weak front moves through the area. Isolated showers and
thunderstorms are possible after 1800 MDT through 2200 MDT, with
isolated showers or light sprinkles overnight. Main threat from
the thunderstorms could be gusty and erratic wind gusts to 40 mph
this evening. Otherwise, expect winds to decrease overnight,
becoming southwest or variable with moderate RH recoveries.
Conditions will be cooler for Monday, with afternoon RH higher, in
the middle 20s percent. North to northwest winds will increase
late morning into the early afternoon, before decreasing.

.REST OF TODAY...

Sky/weather.........Partly sunny. Haze and areas of smoke.
CWR.................0 percent.
LAL.................1...no thunderstorms.
Max temperature.....96-100.
Min humidity........12-18 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 6 to 12 mph with gusts
                    to around 20 mph.
 Ridgetop...........Northwest 10 to 20 mph.
Mixing height.......13800 ft AGL.
Transport winds.....Northwest around 18 mph.
Haines index........5.

.TONIGHT...

Sky/weather.........Cloudy. Haze and areas of smoke. Isolated showers
                    and thunderstorms in the evening. Isolated showers
                    possible overnight.
CWR.................10 percent.
LAL.................2...1 to 8 strikes/15 min/cell.
Min temperature.....67-71.
Max humidity........54-61 percent.
Wind (20 ft)........
 Slope/valley.......North to northwest winds 8 to 14 mph. Gusts up to 25 mph
                    in the evening. Winds becoming southwest to variable
                    4 to 8 mph after 2100 MDT. Gusty and erratic winds
                    expected near thunderstorms in the evening.
 Ridgetop...........North to northwest 15 to 25 mph in the evening, becoming
                    southwest 8 to 14 mph overnight.
Mixing height.......Decreasing to 500 ft AGL overnight.
Transport winds.....Northwest to west around 15 mph.

.MONDAY...

Sky/weather.........Partly sunny. Isolated showers possible through
                    the day. Isolated thunderstorms possible in
                    the afternoon.
CWR.................10 percent.
LAL.................2...1 to 8 strikes/15 min/cell.
Max temperature.....88-92.
Min humidity........24-28 percent.
Wind (20 ft)........
 Slope/valley.......North to northeast winds 4 to 8 mph becoming north
                    to northwest west 8 to 16 mph with gusts to 20 mph
                    after 1100 MDT. Winds decrease to 6 to 12 mph after
                    1500 MDT. Gusty and erratic winds expected near
                    thunderstorms in the afternoon.
 Ridgetop...........North 5 to 10 mph in the morning becoming northwest
                    10 to 20 mph after 1100 MDT. Winds decrease to 6 to
                    12 mph after 1500 MDT.
Mixing height.......500 ft AGL early in the morning increasing to
                    9300 ft AGL in the afternoon.
Transport winds.....Northwest around 15 mph.
Haines index........4.

$$
Forecaster...Palmquist
Requested by...Donald Jones
Type of request...WILDFIRE
.TAG 2417955.6/BYZ
.DELDT 07/13/24
.FormatterVersion 2.0.0
.EMAIL djones@blm.gov