465
FNUS73 KDLH 151041
FWSDLH

Spot Forecast for Slither RX...USFS
National Weather Service Duluth MN
441 AM CST Mon Dec 15 2025

Forecast is based on ignition time of 0900 CST on December 15.
If there are questions or concerns with this forecast, or if
conditions become unrepresentative, contact the National
Weather Service in Duluth at 218-729-0653.

.DISCUSSION...

Quiet weather as high pressure moves from Manitoba into Ontario.
The region will see the start of a warming trend today with highs
climbing into the teens. An abundance of warm air aloft will lead
to a strong inversion today. Expect ventilation to remain poor
throughout the day. Winds will remain out of the northwest today
with a few gusts around 15 mph.

.REST OF TODAY...

Sky/weather.........Partly sunny (60-70 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 17.
Min humidity........67 percent.
Wind (20 ft)........Northwest winds 5 to 6 mph.
Mixing height.......900 ft AGL.
Transport winds.....Northwest 9 to 13 mph.
Smoke dispersal.....Poor (2700-9800 knot-ft).
Pcpn amount.........0.00 inches.

TIME (CST)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC  MC  MC  MC  MC  MC  MC  MC  MC
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0
Temp............8   11  13  14  16  16  17  15  13
RH..............83  73  73  73  70  70  67  70  73
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..6   6   6   6   6   6   6   5   4
20 FT wind gust.13  13  13  13  13  12  12  11  9
Mix hgt (kft)...0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.7 0.3
Transp wind dir.NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.12  12  12  13  13  13  13  12  9
SDspl kt-ft/10008   8   9   10  10  10  10  7   3

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (75-85 percent). Slight chance of
                    light freezing rain early in the morning.
Chance of pcpn......20 percent.
Min temperature.....Around 5 above.
Max humidity........92 percent.
Wind (20 ft)........Northwest winds around 5 mph early in the
                    evening becoming light, then becoming south 6
                    to 9 mph with gusts to around 20 mph late in
                    the evening.
Mixing height.......600 ft AGL.
Transport winds.....Northwest 5 to 7 mph shifting to the southwest
                    6 to 7 mph late in the evening, then increasing
                    to 9 to 17 mph late in the evening.
Smoke dispersal.....Poor (1300 knot-ft).
Pcpn amount.........0.00 inches.

TIME (CST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......PC  PC  PC  PC  PC  MC  MC  MC  CDY CDY MC  MC
Weather cov.....                                            SCH
Weather type....                                            FZR
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   10  10  10  10  20
Temp............10  8   7   6   7   9   10  12  14  15  17  19
RH..............80  87  87  91  91  83  87  84  84  84  80  80
20 FT wind dir..NW  NW  W   SW  SW  S   S   S   S   S   SW  SW
20 FT wind spd..4   3   2   2   3   5   6   7   7   8   8   9
20 FT wind gust.8   7   7   7   8   9   12  14  14  16  19  20
Mix hgt (kft)...0.3 0.3 0.6 0.3 0.2 0.3 0.3 0.3 0.4 0.4 0.4 0.4
Transp wind dir.NW  NW  W   W   SW  S   S   S   S   SW  SW  SW
Transp wind spd.7   6   5   6   7   9   13  14  14  16  17  17
SDspl kt-ft/10002   1   2   1   1   2   4   4   4   5   6   6

.TUESDAY...

Sky/weather.........Partly sunny (50-60 percent). Slight chance of
                    light freezing rain early in the morning, then
                    slight chance of snow early in the morning.
Chance of pcpn......20 percent.
Max temperature.....Around 39.
Min humidity........75 percent.
Wind (20 ft)........Southwest winds 10 to 15 mph shifting to the
                    west late in the afternoon. Gusts up to 33 mph.
Mixing height.......1500 ft AGL.
Transport winds.....West 18 to 24 mph increasing to 24 to 25 mph
                    late in the afternoon.
Smoke dispersal.....Poor to fair (8000-22500 knot-ft) increasing to
                    good (30800 knot-ft) late in the afternoon.
Pcpn amount.........0.00 inches.

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MC  MC  MC  MC  MC  MC  MC  MC  PC  PC  MC  MC
Weather cov.....SCH SCH SCH
Weather type....FZR SN  SN
Tstm cov........
Chc of pcpn (%).20  20  20  10  10  10  0   0   0   0   0   0
Temp............20  20  22  25  29  32  35  36  37  39  39  38
RH..............84  92  92  88  85  82  75  79  79  76  76  79
20 FT wind dir..SW  SW  SW  SW  SW  W   W   W   W   W   W   W
20 FT wind spd..10  11  11  12  12  12  12  13  13  15  15  15
20 FT wind gust.22  23  23  25  25  25  25  26  28  29  30  30
Mix hgt (kft)...0.5 0.5 0.6 0.6 0.8 0.9 0.9 0.7 1.1 1.5 1.5 1.5
Transp wind dir.SW  SW  SW  SW  W   W   W   W   W   W   W   W
Transp wind spd.18  20  22  22  23  23  23  23  23  24  24  25
SDspl kt-ft/10008   9   11  12  16  18  19  15  23  31  32  33

$$
Forecaster...Lee
Requested by...Zach Kellerman
Type of request...PRESCRIBED
.TAG 2527593.0/DLH
.DELDT 12/15/25
.FormatterVersion 2.0.0
.EMAIL zachary.kellerman@usda.gov