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-Mar-2025 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 12 PM Fri Mar 21 2025 22F 15F / 89% W 16 G 25 MPH 5400 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Fri Mar 21 2025 24F 16F / 81% W 11 G 18 MPH 5500 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Fri Mar 21 2025 26F 18F / 76% W 9 G 16 MPH 5400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Fri Mar 21 2025 27F 19F / 73% WSW 9 G 16 MPH 5600 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Fri Mar 21 2025 27F 19F / 75% WSW 10 G 16 MPH 5900 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Fri Mar 21 2025 26F 19F / 75% WSW 11 G 18 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Fri Mar 21 2025 26F 19F / 77% WSW 16 G 27 MPH 6200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Fri Mar 21 2025 25F 19F / 73% WSW 19 G 31 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Fri Mar 21 2025 22F 18F / 75% WSW 22 G 36 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Fri Mar 21 2025 22F 18F / 80% WSW 24 G 39 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Fri Mar 21 2025 22F 17F / 92% WSW 24 G 39 MPH 6400 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 11 11 PM Fri Mar 21 2025 22F 18F / 92% WSW 27 G 42 MPH 6600 FT 7:1 / 14% 0.04" / 0.3" 0.05" / 0.4" 12 12 AM Sat Mar 22 2025 22F 19F / 94% W 27 G 43 MPH 6600 FT 8:1 / 12% 0.07" / 0.6" 0.12" / 1.0" 13 01 AM Sat Mar 22 2025 24F 19F / 99% W 27 G 43 MPH 6900 FT 9:1 / 11% 0.05" / 0.4" 0.17" / 1.4" 14 02 AM Sat Mar 22 2025 24F 18F / 100% W 27 G 42 MPH 6800 FT 10:1 / 10% 0.03" / 0.3" 0.20" / 1.7" 15 03 AM Sat Mar 22 2025 24F 18F / 100% W 27 G 42 MPH 6900 FT 10:1 / 10% 0.01" / 0.1" 0.21" / 1.8" 16 04 AM Sat Mar 22 2025 24F 18F / 100% W 26 G 41 MPH 7000 FT 10:1 / 10% 0.01" / 0.1" 0.22" / 1.9" 17 05 AM Sat Mar 22 2025 24F 18F / 100% W 26 G 40 MPH 6900 FT 10:1 / 10% 0.04" / 0.4" 0.26" / 2.3" 18 06 AM Sat Mar 22 2025 24F 18F / 100% W 24 G 36 MPH 6900 FT 11:1 / 9% 0.05" / 0.6" 0.31" / 2.9" 19 07 AM Sat Mar 22 2025 24F 18F / 100% W 26 G 43 MPH 7000 FT 11:1 / 9% 0.04" / 0.4" 0.35" / 3.3" 20 08 AM Sat Mar 22 2025 23F 17F / 97% W 27 G 44 MPH 6800 FT 11:1 / 9% 0.06" / 0.7" 0.41" / 4.0" 21 09 AM Sat Mar 22 2025 23F 17F / 96% W 29 G 45 MPH 7000 FT 10:1 / 10% 0.05" / 0.5" 0.46" / 4.5" 22 10 AM Sat Mar 22 2025 24F 17F / 99% W 28 G 43 MPH 6900 FT 9:1 / 11% 0.02" / 0.2" 0.48" / 4.7" 23 11 AM Sat Mar 22 2025 25F 17F / 97% W 26 G 43 MPH 6900 FT 10:1 / 10% 0.02" / 0.2" 0.50" / 4.9" 24 12 PM Sat Mar 22 2025 26F 17F / 94% W 27 G 43 MPH 6800 FT 9:1 / 11% 0.03" / 0.3" 0.53" / 5.2" 25 01 PM Sat Mar 22 2025 26F 17F / 94% W 27 G 43 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 26 02 PM Sat Mar 22 2025 27F 17F / 94% W 28 G 44 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 27 03 PM Sat Mar 22 2025 28F 17F / 100% W 29 G 45 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 28 04 PM Sat Mar 22 2025 27F 18F / 100% W 28 G 43 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 29 05 PM Sat Mar 22 2025 27F 18F / 99% W 28 G 44 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 30 06 PM Sat Mar 22 2025 26F 18F / 99% W 27 G 43 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 31 07 PM Sat Mar 22 2025 25F 18F / 98% WNW 27 G 43 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 32 08 PM Sat Mar 22 2025 24F 18F / 100% WNW 27 G 41 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.53" / 5.2" 33 09 PM Sat Mar 22 2025 24F 18F / 99% WNW 28 G 43 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 34 10 PM Sat Mar 22 2025 23F 17F / 98% WNW 28 G 41 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 35 11 PM Sat Mar 22 2025 23F 18F / 99% WNW 30 G 43 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 36 12 AM Sun Mar 23 2025 24F 18F / 100% WNW 29 G 44 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 37 01 AM Sun Mar 23 2025 24F 19F / 94% WNW 28 G 44 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 38 02 AM Sun Mar 23 2025 22F 18F / 94% WNW 28 G 43 MPH 6700 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 39 03 AM Sun Mar 23 2025 22F 18F / 94% WNW 27 G 42 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 40 04 AM Sun Mar 23 2025 21F 18F / 94% WNW 26 G 39 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 41 05 AM Sun Mar 23 2025 22F 18F / 96% WNW 25 G 36 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 42 06 AM Sun Mar 23 2025 22F 19F / 95% WNW 25 G 37 MPH 6700 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 43 07 AM Sun Mar 23 2025 23F 18F / 98% WNW 24 G 37 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 44 08 AM Sun Mar 23 2025 23F 18F / 99% WNW 26 G 39 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 45 09 AM Sun Mar 23 2025 23F 19F / 100% WNW 27 G 40 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.53" / 5.2" 46 10 AM Sun Mar 23 2025 25F 20F / 98% WNW 25 G 39 MPH 6900 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 47 11 AM Sun Mar 23 2025 26F 21F / 100% WNW 23 G 36 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.53" / 5.2" 48 12 PM Sun Mar 23 2025 29F 21F / 100% WNW 22 G 36 MPH 7200 FT 7:1 / 14% 0.00" / 0.0" 0.53" / 5.2"