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 00Z 29-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 06 PM Fri Mar 28 2025 31F 26F / 70% SW 12 G 22 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Fri Mar 28 2025 29F 24F / 77% WSW 10 G 18 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Fri Mar 28 2025 27F 23F / 79% W 12 G 20 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Fri Mar 28 2025 25F 21F / 80% W 12 G 19 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Fri Mar 28 2025 24F 21F / 74% W 12 G 18 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Fri Mar 28 2025 23F 20F / 65% W 11 G 16 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Sat Mar 29 2025 22F 20F / 60% WSW 10 G 13 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Sat Mar 29 2025 21F 20F / 62% W 10 G 14 MPH 7100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Sat Mar 29 2025 22F 20F / 61% W 11 G 14 MPH 7100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sat Mar 29 2025 22F 20F / 62% W 13 G 16 MPH 7100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sat Mar 29 2025 23F 20F / 63% WSW 10 G 13 MPH 7100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sat Mar 29 2025 23F 20F / 61% WSW 8 G 10 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sat Mar 29 2025 23F 20F / 66% SW 8 G 10 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sat Mar 29 2025 23F 20F / 66% S 8 G 10 MPH 7100 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sat Mar 29 2025 23F 19F / 71% S 10 G 14 MPH 7100 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sat Mar 29 2025 24F 19F / 84% S 8 G 13 MPH 7000 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sat Mar 29 2025 27F 20F / 86% SSW 8 G 15 MPH 6800 FT 11:1 / 9% 0.01" / 0.1" 0.01" / 0.1" 17 11 AM Sat Mar 29 2025 28F 21F / 91% SSW 10 G 19 MPH 6900 FT 12:1 / 8% 0.03" / 0.4" 0.04" / 0.5" 18 12 PM Sat Mar 29 2025 30F 22F / 97% SW 6 G 13 MPH 7400 FT 12:1 / 8% 0.01" / 0.1" 0.05" / 0.6" 19 01 PM Sat Mar 29 2025 32F 23F / 95% SW 8 G 17 MPH 7200 FT 12:1 / 8% 0.00" / 0.0" 0.05" / 0.6" 20 02 PM Sat Mar 29 2025 31F 22F / 94% SW 10 G 21 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.6" 21 03 PM Sat Mar 29 2025 30F 22F / 94% W 9 G 19 MPH 6800 FT 10:1 / 10% 0.11" / 1.1" 0.16" / 1.7" 22 04 PM Sat Mar 29 2025 28F 19F / 96% W 11 G 21 MPH 6000 FT 12:1 / 8% 0.07" / 0.8" 0.23" / 2.5" 23 05 PM Sat Mar 29 2025 25F 18F / 94% W 16 G 28 MPH 6300 FT 11:1 / 9% 0.10" / 1.1" 0.33" / 3.6" 24 06 PM Sat Mar 29 2025 23F 17F / 95% W 13 G 23 MPH 6400 FT 10:1 / 10% 0.02" / 0.2" 0.35" / 3.8" 25 07 PM Sat Mar 29 2025 23F 17F / 88% WNW 16 G 25 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.35" / 3.8" 26 08 PM Sat Mar 29 2025 21F 15F / 85% WNW 14 G 21 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.35" / 3.8" 27 09 PM Sat Mar 29 2025 20F 15F / 94% WNW 15 G 21 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.35" / 3.8" 28 10 PM Sat Mar 29 2025 20F 15F / 100% WNW 15 G 24 MPH 6400 FT 13:1 / 8% 0.09" / 1.2" 0.44" / 5.0" 29 11 PM Sat Mar 29 2025 21F 15F / 99% WNW 17 G 25 MPH 6200 FT 13:1 / 8% 0.01" / 0.1" 0.45" / 5.1" 30 12 AM Sun Mar 30 2025 20F 14F / 92% WNW 17 G 27 MPH 6000 FT 14:1 / 7% 0.00" / 0.0" 0.45" / 5.1" 31 01 AM Sun Mar 30 2025 19F 14F / 97% WNW 18 G 26 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 32 02 AM Sun Mar 30 2025 18F 13F / 90% WNW 18 G 27 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.45" / 5.1" 33 03 AM Sun Mar 30 2025 16F 12F / 88% WNW 19 G 27 MPH 5900 FT 12:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 34 04 AM Sun Mar 30 2025 16F 11F / 89% WNW 20 G 28 MPH 5900 FT 14:1 / 7% 0.00" / 0.0" 0.45" / 5.1" 35 05 AM Sun Mar 30 2025 14F 11F / 89% WNW 19 G 26 MPH 6000 FT 14:1 / 7% 0.00" / 0.0" 0.45" / 5.1" 36 06 AM Sun Mar 30 2025 16F 11F / 83% WNW 19 G 26 MPH 6000 FT 13:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 37 07 AM Sun Mar 30 2025 15F 13F / 78% WNW 19 G 27 MPH 6000 FT 13:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 38 08 AM Sun Mar 30 2025 15F 13F / 68% WNW 18 G 24 MPH 5800 FT 14:1 / 7% 0.00" / 0.0" 0.45" / 5.1" 39 09 AM Sun Mar 30 2025 16F 14F / 60% W 18 G 25 MPH 5600 FT 11:1 / 9% 0.00" / 0.0" 0.45" / 5.1" 40 10 AM Sun Mar 30 2025 20F 16F / 65% W 15 G 22 MPH 5700 FT 13:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 41 11 AM Sun Mar 30 2025 21F 17F / 70% W 13 G 18 MPH 5800 FT 12:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 42 12 PM Sun Mar 30 2025 24F 17F / 76% WSW 12 G 19 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 43 01 PM Sun Mar 30 2025 25F 18F / 74% WSW 13 G 21 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.45" / 5.1" 44 02 PM Sun Mar 30 2025 26F 20F / 83% WSW 13 G 23 MPH 6000 FT 13:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 45 03 PM Sun Mar 30 2025 28F 20F / 84% WSW 14 G 24 MPH 6100 FT 13:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 46 04 PM Sun Mar 30 2025 28F 19F / 86% WSW 15 G 26 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.45" / 5.1" 47 05 PM Sun Mar 30 2025 27F 20F / 89% WSW 15 G 26 MPH 6600 FT 12:1 / 8% 0.01" / 0.1" 0.46" / 5.2" 48 06 PM Sun Mar 30 2025 26F 19F / 87% WSW 18 G 29 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.46" / 5.2"