844
FNUS75 KGGW 181102
FWSGGW

Spot Forecast for Owl fire...BLM LED
National Weather Service Glasgow MT
502 AM MDT Fri Jul 18 2025

Forecast is based on forecast start time of 0600 MDT on July 18.
If conditions become unrepresentative...contact the National Weather
Service at (406) 228-9622.

.DISCUSSION...
Generally dry conditions are expected across the burn area today.
Temperatures will be rising into the weekend, but relative
humidity will generally remain above 25 percent. Winds will be
shifting directions, but at less then 10 mph. Stronger winds will
develop on Saturday afternoon, along with a return of
thunderstorms.

.TODAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................1 percent.
Chance of thunder...2 percent.
Max temperature.....Around 82.
Min humidity........39 percent.
Wind (20 ft)........Light winds becoming east 5 to 6 mph late in
                    the afternoon.
Mixing height.......6100 ft AGL.
Transport winds.....North 5 to 7 mph, then shifting to
                    the southeast 6 to 7 mph late in the afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........34  36  37  39  26  14  14  11  11  13  8   6
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............56  58  59  60  64  68  70  74  76  78  79  80
RH..............91  91  86  82  73  64  58  53  47  44  42  39
20 FT wind dir..N   N   N   N   NE  E   E   E   E   E   E   E
20 FT wind spd..3   2   2   2   3   3   3   4   5   5   5   6
20 FT wind gust.5   5   5   5   6   7   7   8   10  10  10  11
Mix hgt (kft)...0.5 1.0 1.6 2.2 2.6 3.4 3.8 4.6 5.1 5.5 5.8 6.1
Transp wind dir.N   N   N   N   N   N   NE  N   S   SE  SE  SE
Transp wind spd.5   6   7   6   5   5   5   6   6   7   7   7

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent).
CWR.................3 percent.
Chance of thunder...8 percent.
Min temperature.....Around 62.
Max humidity........77 percent.
Wind (20 ft)........East winds around 6 mph.
Mixing height.......600 ft AGL.
Transport winds.....East 7 to 14 mph.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........11  23  23  23  26  30  22  21  12  15  25  42
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).10  10  10  10  10  10  10  10  10  10  10  10
Temp............80  81  79  74  71  69  67  66  65  64  64  63
RH..............39  40  42  48  54  58  62  66  68  70  74  74
20 FT wind dir..E   E   E   E   E   E   E   E   E   E   E   E
20 FT wind spd..6   6   6   6   6   6   6   6   6   6   6   6
20 FT wind gust.11  10  10  10  10  10  14  13  12  11  11  10
Mix hgt (kft)...5.2 4.9 2.4 0.6 0.6 0.7 0.7 0.6 0.6 0.6 0.6 0.6
Transp wind dir.E   SE  E   E   E   E   E   E   E   E   E   SE
Transp wind spd.7   9   10  12  13  14  14  13  12  12  12  9

.SATURDAY...

Sky/weather.........Partly sunny (50-60 percent). Chance of showers
                    and slight chance of thunderstorms in the
                    afternoon.
CWR.................7 percent.
Chance of thunder...21 percent.
Max temperature.....Around 89.
Min humidity........28 percent.
Wind (20 ft)........East winds around 5 mph, becoming west around 5 mph
                    early in the afternoon. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Mixing height.......7800 ft AGL.
Transport winds.....East 7 to 9 mph shifting to the west 13 to 18
                    mph late in the morning.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........67  67  67  65  65  65  45  45  45  51  51  51
Weather cov.....                        CHC CHC CHC CHC CHC CHC
Weather type....                        RW  RW  RW  RW  RW  RW
Tstm cov........                        SCH SCH SCH SCH SCH SCH
CWR.............0   0   0   0   0   0   10  10  10  10  10  10
Chc of thdr (%).10  10  10  10  10  10  20  20  20  20  20  20
Temp............62  64  67  70  75  78  82  85  86  87  88  89
RH..............76  75  70  66  57  52  43  39  34  30  27  27
20 FT wind dir..E   E   E   S   S   S   W   W   W   NW  NW  NW
20 FT wind spd..5   5   5   4   4   4   5   5   5   6   6   6
20 FT wind gust.10  10  10  11  11  11  12  12  12  13  13  13
Mix hgt (kft)...0.5 0.8 1.2 1.7 2.2 3.1 4.2 5.7 7.0 7.8 7.7 7.0
Transp wind dir.E   E   E   S   SW  W   W   W   W   W   W   W
Transp wind spd.7   9   8   8   10  13  14  15  15  16  17  18

$$
Forecaster...EBERT
Requested by...Lewistown dispatch
Type of request...WILDFIRE
.TAG 2518198.0/GGW
.DELDT 07/18/25
.FormatterVersion 2.0.0
.EMAIL mtlec@firenet.gov