Spot Forecast
Issued by NWS Glasgow, MT

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Spot Forecast for Walleye Wildfire...FWS CMR
National Weather Service Glasgow MT
528 PM MDT Tue May 13 2025

Forecast is based on forecast start time of 1800 MDT on May 13.
If conditions become unrepresentative...contact the National Weather
Service at (406) 228-4042.

.DISCUSSION...
The main weather feature worth monitoring over the next couple of
days will be a storm system tracking over Idaho toward the
northeast over Southeast Montana. This will mean cloudy and cool
overall temperatures with increasing chances for rain showers and
isolated thunder tonight through the middle of the week. Tonight
specifically, look for north winds ranging from 5 to 15 mph,
gusting to 20 mph at times. Showers will tend to be hit or miss
until late tonight but become steadier on Wednesday, this is when
wetting rains are expected for the wildfire location. North winds
will also continue at the 10 to 20 mph range with occasional
stronger gusts on Wednesday.

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (70-80 percent). Slight chance of
                    rain showers this evening. Chance of rain showers
                    overnight, then rain showers likely early in
                    the morning.
CWR.................2 percent increasing to 51 percent overnight.
Chance of thunder...3 percent.
Min temperature.....Around 52.
Max humidity........83 percent.
Wind (20 ft)........North winds 6 to 15 mph with occasional gusts to 20 mph.
Mixing height.......700 ft AGL.
Transport winds.....North 10 to 15 mph.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........41  52  69  70  79  83  95  98  99  100 100 100
Weather cov.....                            SCH CHC CHC CHC LKY
Weather type....                            RW  RW  RW  RW  RW
Tstm cov........
CWR.............0   0   0   0   0   0   50  50  50  50  50  50
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............72  70  68  64  61  59  60  57  56  56  53  53
RH..............31  34  36  40  45  50  52  59  63  66  74  80
20 FT wind dir..N   N   N   N   N   N   NE  N   NE  NE  N   N
20 FT wind spd..9   9   9   8   8   10  9   9   11  9   9   7
20 FT wind gust.18  15  15  13  13  17  13  13  17          7
Mix hgt (kft)...6.5 4.4 0.7 0.7 0.7 0.7 0.7 0.8 0.8 1.0 1.0 0.9
Transp wind dir.N   N   N   N   N   NE  NE  NE  NE  NE  NE  NE
Transp wind spd.12  12  12  13  14  14  14  15  15  13  10  10

.WEDNESDAY...

Sky/weather.........Cloudy (95-100 percent). Rain showers likely
                    early in the morning, then rain showers in the
                    late morning and early afternoon. Rain showers
                    likely late in the afternoon.
CWR.................79 percent.
Chance of thunder...5 percent.
Max temperature.....Around 58.
Min humidity........68 percent.
Wind (20 ft)........North winds 6 to 9 mph shifting to the
                    northwest 10 to 13 mph with gusts to around 20
                    mph in the afternoon.
Mixing height.......2400 ft AGL.
Transport winds.....North 12 to 16 mph.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........100 100 100 96  96  98  96  96  96  95  96  96
Weather cov.....LKY LKY LKY LKY DEF DEF DEF DEF DEF DEF LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............80  80  80  80  80  80  70  70  70  70  70  70
Chc of thdr (%).0   0   0   0   0   0   10  10  10  10  10  10
Temp............53  52  52  53  53  54  55  55  55  55  57  55
RH..............83  83  83  83  75  74  70  74  71  68  71  69
20 FT wind dir..NE  N   N   N   N   N   N   N   N   N   NW  NW
20 FT wind spd..9   6   9   7   9   9   10  11  12  13  12  12
20 FT wind gust.13  7   13  10  13  13  14  17  18  20  18  18
Mix hgt (kft)...1.0 0.8 1.4 1.7 1.8 2.3 2.4 2.3 2.3 2.4 2.0 2.2
Transp wind dir.N   N   N   N   N   N   N   N   N   N   N   N
Transp wind spd.12  12  12  14  13  15  13  14  15  16  15  16

.WEDNESDAY NIGHT...

Sky/weather.........Cloudy (90-100 percent). Chance of rain
                    showers.
CWR.................44 percent.
Chance of thunder...10 percent.
Min temperature.....Around 44.
Max humidity........93 percent.
Wind (20 ft)........Northwest winds 10 to 13 mph. Gusts up to 25
                    mph after 3 am.
Mixing height.......1400 ft AGL.
Transport winds.....Northwest 13 to 16 mph.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........98  98  98  100 100 100 96  96  96  93  93  93
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............40  40  40  40  40  40  40  40  40  40  40  40
Chc of thdr (%).10  10  10  10  10  10  10  10  10  10  10  10
Temp............55  53  51  49  48  47  48  48  47  46  45  44
RH..............69  70  73  77  83  90  85  85  89  93  95  95
20 FT wind dir..N   N   N   NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..11  11  11  10  10  10  10  10  10  13  13  13
20 FT wind gust.17  17  17  14  14  14  14  14  14  20  20  20
Mix hgt (kft)...2.1 2.2 1.7 1.6 1.7 1.5 1.4 1.4 1.4 1.5 1.5 1.5
Transp wind dir.N   N   N   N   NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.15  14  14  13  13  14  14  15  15  16  16  16

.THURSDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Chance of rain
                    showers.
CWR.................26 percent increasing to 37 percent in the
                    afternoon.
Chance of thunder...4 percent.
Max temperature.....Around 62.
Min humidity........45 percent.
Wind (20 ft)........Northwest winds 11 to 17 mph with gusts to
                    around 24 mph.
Mixing height.......5400 ft AGL.
Transport winds.....Northwest 17 to 26 mph increasing to 28 to 33
                    mph in the afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........93  93  93  78  78  78  90  90  90  91  91  91
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............30  30  30  30  30  30  40  40  40  40  40  40
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............44  45  47  49  51  54  56  57  59  60  60  60
RH..............93  88  82  75  68  61  55  51  48  46  45  44
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..11  11  11  14  14  14  15  15  15  17  17  17
20 FT wind gust.17  17  17  22  22  22  23  23  23  24  24  24
Mix hgt (kft)...1.5 2.0 2.4 2.9 3.4 3.9 4.5 4.8 5.1 5.4 5.2 5.0
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.17  20  22  24  25  26  28  30  32  33  33  31

$$
Forecaster...MALIAWCO
Requested by...Casey Meadows
Type of request...WILDFIRE
.TAG 2513932.0/GGW
.DELDT 05/13/25
.FormatterVersion 2.0.0
.EMAIL Cody_whitney@fws.gov