ALTA/LITTLE COTTONWOOD CANYON HRRR-DERIVED FORECAST GUIDANCE *************************************************************** * THIS IS AN EXPERIMENTAL, AUTOMATED, AND UNOFFICIAL FORECAST * *************************************************************** CREATED/MAINTAINED BY THE STEENBURGH GROUP DEPARTMENT OF ATMOSPHERIC SCIENCES UNIVERSITY OF UTAH Contact: jim.steenburgh@utah.edu WETBULBZERO, 1H QPF, ACCUM QPF DIRECTLY FROM HRRR COLLINS SNOW RATIO/H2O, MT BALDY T/RH, MT BALDY WIND, 1H SNOW, and ACCUM SNOW based on machine learning including UU RF SLR algorithm Based on 18Z 21-Dec-2024 intialized HRRR FORECAST HOURS 0-48 FHR VALID MOUNTAIN TIME COLLINS T MT BALDY T/RH MT BALDY WIND WETBULBZERO SLR/H2O 1H QPF / 1H SNOW / ACCUM QPF / ACCUM SNOW 0 11 AM Sat Dec 21 2024 35F 32F / 33% SSW 18 G 36 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Sat Dec 21 2024 38F 32F / 38% SSW 19 G 37 MPH 6600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Sat Dec 21 2024 39F 31F / 39% SW 19 G 37 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Sat Dec 21 2024 38F 31F / 39% SW 18 G 35 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Sat Dec 21 2024 35F 31F / 37% SW 19 G 34 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 04 PM Sat Dec 21 2024 32F 29F / 40% WSW 20 G 34 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 05 PM Sat Dec 21 2024 30F 29F / 42% WSW 18 G 30 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 06 PM Sat Dec 21 2024 30F 29F / 39% WSW 19 G 29 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 07 PM Sat Dec 21 2024 30F 29F / 41% W 21 G 31 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 08 PM Sat Dec 21 2024 30F 29F / 42% W 21 G 31 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 09 PM Sat Dec 21 2024 30F 29F / 42% W 20 G 29 MPH 4300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 10 PM Sat Dec 21 2024 29F 29F / 44% WSW 19 G 27 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 11 PM Sat Dec 21 2024 29F 28F / 46% WSW 19 G 27 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 12 AM Sun Dec 22 2024 29F 28F / 43% WSW 20 G 32 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 01 AM Sun Dec 22 2024 29F 28F / 40% WSW 21 G 34 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 02 AM Sun Dec 22 2024 29F 27F / 43% WSW 22 G 33 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 03 AM Sun Dec 22 2024 29F 26F / 44% WSW 20 G 31 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 04 AM Sun Dec 22 2024 27F 25F / 48% WSW 19 G 32 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 05 AM Sun Dec 22 2024 27F 24F / 46% WSW 19 G 31 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 06 AM Sun Dec 22 2024 27F 24F / 53% W 19 G 28 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 07 AM Sun Dec 22 2024 27F 24F / 64% W 17 G 28 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 08 AM Sun Dec 22 2024 26F 23F / 72% WSW 17 G 29 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 09 AM Sun Dec 22 2024 25F 23F / 68% SW 18 G 29 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 10 AM Sun Dec 22 2024 28F 24F / 88% SW 20 G 35 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 11 AM Sun Dec 22 2024 30F 24F / 97% WSW 19 G 32 MPH 7900 FT 8:1 / 12% 0.03" / 0.2" 0.03" / 0.2" 25 12 PM Sun Dec 22 2024 31F 25F / 95% W 18 G 31 MPH 7900 FT 9:1 / 11% 0.05" / 0.4" 0.08" / 0.6" 26 01 PM Sun Dec 22 2024 30F 24F / 96% W 20 G 35 MPH 7900 FT 9:1 / 11% 0.03" / 0.3" 0.11" / 0.9" 27 02 PM Sun Dec 22 2024 30F 24F / 96% W 23 G 37 MPH 7900 FT 7:1 / 14% 0.01" / 0.1" 0.12" / 1.0" 28 03 PM Sun Dec 22 2024 29F 24F / 95% W 23 G 38 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 29 04 PM Sun Dec 22 2024 28F 23F / 99% W 24 G 39 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 30 05 PM Sun Dec 22 2024 28F 23F / 97% W 24 G 39 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.12" / 1.0" 31 06 PM Sun Dec 22 2024 28F 22F / 99% W 25 G 41 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 32 07 PM Sun Dec 22 2024 27F 22F / 100% W 26 G 42 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 33 08 PM Sun Dec 22 2024 27F 22F / 100% WNW 26 G 41 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 34 09 PM Sun Dec 22 2024 25F 22F / 93% WNW 28 G 41 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 35 10 PM Sun Dec 22 2024 24F 21F / 94% WNW 28 G 40 MPH 7800 FT 6:1 / 17% 0.00" / 0.0" 0.12" / 1.0" 36 11 PM Sun Dec 22 2024 24F 21F / 96% WNW 25 G 38 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 37 12 AM Mon Dec 23 2024 23F 21F / 94% WNW 25 G 37 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 38 01 AM Mon Dec 23 2024 23F 20F / 95% WNW 24 G 36 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.12" / 1.0" 39 02 AM Mon Dec 23 2024 23F 21F / 94% WNW 21 G 32 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.12" / 1.0" 40 03 AM Mon Dec 23 2024 23F 20F / 91% WNW 20 G 30 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.12" / 1.0" 41 04 AM Mon Dec 23 2024 23F 21F / 89% WNW 19 G 26 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.12" / 1.0" 42 05 AM Mon Dec 23 2024 24F 22F / 80% WNW 20 G 29 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.12" / 1.0" 43 06 AM Mon Dec 23 2024 24F 22F / 79% W 19 G 29 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.12" / 1.0" 44 07 AM Mon Dec 23 2024 24F 21F / 82% WNW 18 G 29 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.12" / 1.0" 45 08 AM Mon Dec 23 2024 23F 21F / 84% W 19 G 27 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.12" / 1.0" 46 09 AM Mon Dec 23 2024 25F 22F / 89% W 17 G 26 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.12" / 1.0" 47 10 AM Mon Dec 23 2024 28F 24F / 96% W 18 G 30 MPH 8000 FT 9:1 / 11% 0.01" / 0.1" 0.13" / 1.1" 48 11 AM Mon Dec 23 2024 29F 24F / 95% WSW 18 G 29 MPH 7800 FT 9:1 / 11% 0.01" / 0.1" 0.14" / 1.2"