232
FNUS75 KBYZ 272001
FWSBYZ

Spot Forecast for SMOKE 249 Fort Smith...Billings Interagency Dispatch Center
National Weather Service Billings MT
201 PM MDT Thu Jun 27 2024

Forecast is based on forecast start time of 1400 MDT on June 27.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

...Cold frontal passage this afternoon...

Scattered showers and thunderstorms are developing in the area
early this afternoon. Thunderstorms will be capable of producing
strong, erratic wind gusts and hail. In addition, a cold front
will cross the site around 220 to 300 PM MDT this afternoon, with
winds changing from south/southwesterly to northwesterly and gusting to
50-60 mph. Northwesterly winds 20-25 mph gusting to 30 mph will
then continue through about 600 PM MDT this evening. Winds will
weaken tonight, then increase again late Friday morning to
west/northwesterly, 25-35 mph, gusting to 40 mph, and continue
into Friday evening. Friday will be cooler with a high temperature in
the 70s.


.REST OF TODAY...

Sky/weather.........Partly sunny. Chance of showers and
                    thunderstorms. Some thunderstorms may be severe
                    with damaging winds and large hail.
CWR.................20 percent.
LAL.................3...9 to 15 strikes/15 min/cell.
Max temperature.....91-95.
Min humidity........29-33 percent.
Wind (20 ft)........
 Slope/valley.......South/southwesterly winds 10-15 mph, gusting to 20 mph,
                    switching to northwesterly and gusting to 50-60 mph
                    around 220-300 PM MDT, then northwesterly 20-25 mph,
                    gusting to 30 mph through the rest of the afternoon.
                    Gusty and erratic winds expected near thunderstorms.
 Ridgetop...........Southwesterly around 35 mph, becoming northwesterly 25 mph
                    around 220-300 PM MDT.
Mixing height.......10500 ft AGL.
Transport winds.....West around 40 mph.
Haines index........4.

.TONIGHT...

Sky/weather.........Partly cloudy. Chance of rain showers and
                    slight chance of thunderstorms in the evening.
                    Some thunderstorms may produce damaging winds
                    and large hail in the evening.
CWR.................15 percent.
LAL.................2...1 to 8 strikes/15 min/cell.
Min temperature.....51-55.
Max humidity........73-77 percent.
Wind (20 ft)........
 Slope/valley.......North/northwest winds 7-14 mph in the evening, becoming
                    light and variable overnight.
                    Gusty and erratic winds expected near
                    thunderstorms in the evening.
 Ridgetop...........North around 7 mph.
Mixing height.......5000 ft AGL early in the evening decreasing to
                    1200 ft AGL overnight.
Transport winds.....North around 10 mph.

.FRIDAY...

Sky/weather.........Sunny and windy.
CWR.................0 percent.
LAL.................1...no thunderstorms.
Max temperature.....73-77.
Min humidity........34-38 percent.
Wind (20 ft)........
 Slope/valley.......West winds 6 to 12 mph increasing to northwest
                    25 to 35 mph in the late morning, continuing into
                    the afternoon. Gusts up to 40 mph.
 Ridgetop...........Northwest around 40 mph.
Mixing height.......1000 ft AGL early in the morning increasing to
                    8500 ft AGL in the afternoon.
Transport winds.....Northwest around 45 mph.
Haines index........2.

$$
Forecaster...Setzenfand
Requested by...Emily Kessler
Type of request...WILDFIRE
.TAG 2416828.0/BYZ
.DELDT 06/27/24
.FormatterVersion 2.0.0
.EMAIL MTBDC@firenet.gov