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 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 06 PM Thu Mar 20 2025 20F 12F / 97% W 22 G 33 MPH 5200 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Thu Mar 20 2025 18F 11F / 83% WNW 24 G 34 MPH 5000 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Thu Mar 20 2025 14F 9F / 80% WNW 27 G 41 MPH 5000 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Thu Mar 20 2025 13F 8F / 89% WNW 27 G 41 MPH 4900 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Thu Mar 20 2025 13F 8F / 92% WNW 26 G 38 MPH 4600 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Thu Mar 20 2025 12F 8F / 84% WNW 27 G 38 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Fri Mar 21 2025 12F 9F / 79% WNW 27 G 40 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Fri Mar 21 2025 12F 9F / 75% WNW 28 G 41 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Fri Mar 21 2025 13F 10F / 69% WNW 30 G 43 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Fri Mar 21 2025 14F 11F / 70% WNW 30 G 45 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Fri Mar 21 2025 15F 11F / 67% WNW 30 G 46 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Fri Mar 21 2025 16F 12F / 69% WNW 31 G 47 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Fri Mar 21 2025 16F 12F / 69% WNW 29 G 44 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Fri Mar 21 2025 16F 12F / 70% WNW 28 G 42 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Fri Mar 21 2025 16F 12F / 73% WNW 28 G 41 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Fri Mar 21 2025 17F 13F / 78% WNW 25 G 38 MPH 4300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Fri Mar 21 2025 20F 14F / 79% WNW 23 G 34 MPH 4800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Fri Mar 21 2025 21F 15F / 79% WNW 19 G 30 MPH 5000 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Fri Mar 21 2025 23F 16F / 79% W 17 G 26 MPH 5100 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Fri Mar 21 2025 25F 17F / 79% W 15 G 23 MPH 5400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Fri Mar 21 2025 25F 19F / 78% WSW 14 G 23 MPH 5800 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Fri Mar 21 2025 27F 19F / 78% WSW 14 G 24 MPH 6100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Fri Mar 21 2025 26F 19F / 79% WSW 14 G 24 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Fri Mar 21 2025 24F 18F / 87% WSW 17 G 29 MPH 6300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Fri Mar 21 2025 24F 17F / 95% WSW 18 G 30 MPH 6400 FT 10:1 / 10% 0.01" / 0.1" 0.01" / 0.1" 25 07 PM Fri Mar 21 2025 24F 18F / 95% WSW 21 G 34 MPH 6600 FT 11:1 / 9% 0.02" / 0.2" 0.03" / 0.3" 26 08 PM Fri Mar 21 2025 23F 18F / 94% WSW 24 G 39 MPH 6600 FT 7:1 / 14% 0.01" / 0.1" 0.04" / 0.4" 27 09 PM Fri Mar 21 2025 23F 19F / 96% WSW 26 G 40 MPH 6800 FT 7:1 / 14% 0.02" / 0.1" 0.06" / 0.5" 28 10 PM Fri Mar 21 2025 24F 19F / 99% WSW 25 G 41 MPH 7000 FT 7:1 / 14% 0.04" / 0.3" 0.10" / 0.8" 29 11 PM Fri Mar 21 2025 25F 20F / 100% WSW 25 G 40 MPH 7100 FT 7:1 / 14% 0.07" / 0.5" 0.17" / 1.3" 30 12 AM Sat Mar 22 2025 26F 20F / 98% W 27 G 42 MPH 7300 FT 7:1 / 14% 0.08" / 0.6" 0.25" / 1.9" 31 01 AM Sat Mar 22 2025 25F 20F / 97% W 26 G 42 MPH 7200 FT 7:1 / 14% 0.10" / 0.7" 0.35" / 2.6" 32 02 AM Sat Mar 22 2025 25F 20F / 95% W 28 G 43 MPH 7100 FT 7:1 / 14% 0.09" / 0.6" 0.44" / 3.2" 33 03 AM Sat Mar 22 2025 25F 19F / 100% W 27 G 43 MPH 7400 FT 8:1 / 12% 0.07" / 0.6" 0.51" / 3.8" 34 04 AM Sat Mar 22 2025 25F 19F / 99% W 29 G 44 MPH 7300 FT 9:1 / 11% 0.07" / 0.6" 0.58" / 4.4" 35 05 AM Sat Mar 22 2025 25F 18F / 99% W 27 G 42 MPH 7100 FT 10:1 / 10% 0.08" / 0.8" 0.66" / 5.2" 36 06 AM Sat Mar 22 2025 24F 18F / 100% W 25 G 41 MPH 7100 FT 10:1 / 10% 0.06" / 0.6" 0.72" / 5.8" 37 07 AM Sat Mar 22 2025 24F 18F / 97% W 26 G 39 MPH 7200 FT 11:1 / 9% 0.03" / 0.3" 0.75" / 6.1" 38 08 AM Sat Mar 22 2025 23F 18F / 96% W 27 G 43 MPH 7300 FT 11:1 / 9% 0.01" / 0.1" 0.76" / 6.2" 39 09 AM Sat Mar 22 2025 23F 17F / 95% W 27 G 42 MPH 7200 FT 10:1 / 10% 0.01" / 0.1" 0.77" / 6.3" 40 10 AM Sat Mar 22 2025 23F 17F / 96% W 26 G 43 MPH 6900 FT 10:1 / 10% 0.02" / 0.2" 0.79" / 6.5" 41 11 AM Sat Mar 22 2025 24F 17F / 94% W 27 G 42 MPH 6800 FT 10:1 / 10% 0.03" / 0.3" 0.82" / 6.8" 42 12 PM Sat Mar 22 2025 26F 18F / 94% W 25 G 40 MPH 6600 FT 9:1 / 11% 0.04" / 0.4" 0.86" / 7.2" 43 01 PM Sat Mar 22 2025 26F 18F / 93% W 26 G 42 MPH 6500 FT 9:1 / 11% 0.03" / 0.3" 0.89" / 7.5" 44 02 PM Sat Mar 22 2025 27F 18F / 94% W 26 G 41 MPH 6800 FT 9:1 / 11% 0.01" / 0.1" 0.90" / 7.6" 45 03 PM Sat Mar 22 2025 27F 18F / 96% W 28 G 44 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.90" / 7.6" 46 04 PM Sat Mar 22 2025 27F 18F / 96% W 27 G 44 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.90" / 7.6" 47 05 PM Sat Mar 22 2025 27F 18F / 98% W 28 G 43 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.90" / 7.6" 48 06 PM Sat Mar 22 2025 26F 19F / 97% W 30 G 46 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.90" / 7.6"