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 06Z 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 AM Fri Mar 21 2025 12F 9F / 89% WNW 26 G 38 MPH 4600 FT 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Fri Mar 21 2025 13F 10F / 74% WNW 29 G 41 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Fri Mar 21 2025 13F 10F / 64% WNW 30 G 44 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Fri Mar 21 2025 14F 11F / 64% WNW 30 G 44 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Fri Mar 21 2025 15F 11F / 65% WNW 31 G 45 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Fri Mar 21 2025 15F 11F / 65% WNW 31 G 46 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Fri Mar 21 2025 15F 11F / 64% WNW 30 G 45 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Fri Mar 21 2025 15F 11F / 66% WNW 28 G 43 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Fri Mar 21 2025 15F 11F / 64% WNW 28 G 41 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Fri Mar 21 2025 16F 12F / 67% WNW 25 G 37 MPH 4300 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Fri Mar 21 2025 19F 14F / 63% WNW 23 G 34 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Fri Mar 21 2025 21F 15F / 67% WNW 20 G 30 MPH 4900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Fri Mar 21 2025 23F 16F / 72% WNW 17 G 26 MPH 4900 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Fri Mar 21 2025 25F 17F / 74% W 13 G 22 MPH 5200 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Fri Mar 21 2025 26F 18F / 77% WSW 13 G 22 MPH 5500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Fri Mar 21 2025 27F 19F / 76% WSW 12 G 21 MPH 5800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Fri Mar 21 2025 27F 19F / 74% WSW 13 G 22 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Fri Mar 21 2025 26F 19F / 74% WSW 13 G 22 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Fri Mar 21 2025 26F 19F / 75% WSW 17 G 28 MPH 6300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Fri Mar 21 2025 24F 18F / 86% WSW 18 G 30 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Fri Mar 21 2025 21F 18F / 84% WSW 21 G 35 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Fri Mar 21 2025 22F 18F / 83% WSW 25 G 39 MPH 6600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Fri Mar 21 2025 22F 18F / 89% WSW 24 G 40 MPH 6600 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 23 11 PM Fri Mar 21 2025 23F 19F / 90% WSW 27 G 44 MPH 7200 FT 8:1 / 12% 0.01" / 0.1" 0.02" / 0.2" 24 12 AM Sat Mar 22 2025 24F 19F / 95% WSW 25 G 41 MPH 7300 FT 8:1 / 12% 0.01" / 0.1" 0.03" / 0.3" 25 01 AM Sat Mar 22 2025 24F 20F / 95% WSW 27 G 43 MPH 7200 FT 8:1 / 12% 0.05" / 0.4" 0.08" / 0.7" 26 02 AM Sat Mar 22 2025 25F 20F / 95% W 26 G 42 MPH 7300 FT 8:1 / 12% 0.11" / 0.9" 0.19" / 1.6" 27 03 AM Sat Mar 22 2025 25F 20F / 96% W 27 G 43 MPH 7400 FT 7:1 / 14% 0.11" / 0.8" 0.30" / 2.4" 28 04 AM Sat Mar 22 2025 25F 20F / 98% W 29 G 48 MPH 7500 FT 7:1 / 14% 0.09" / 0.6" 0.39" / 3.0" 29 05 AM Sat Mar 22 2025 25F 19F / 99% W 29 G 46 MPH 7500 FT 8:1 / 12% 0.11" / 0.9" 0.50" / 3.9" 30 06 AM Sat Mar 22 2025 24F 18F / 100% W 27 G 43 MPH 7400 FT 10:1 / 10% 0.09" / 0.9" 0.59" / 4.8" 31 07 AM Sat Mar 22 2025 23F 17F / 100% W 29 G 45 MPH 7200 FT 9:1 / 11% 0.03" / 0.3" 0.62" / 5.1" 32 08 AM Sat Mar 22 2025 23F 17F / 100% W 30 G 44 MPH 7100 FT 11:1 / 9% 0.02" / 0.2" 0.64" / 5.3" 33 09 AM Sat Mar 22 2025 23F 16F / 98% W 28 G 44 MPH 6900 FT 10:1 / 10% 0.03" / 0.3" 0.67" / 5.6" 34 10 AM Sat Mar 22 2025 23F 16F / 99% W 27 G 44 MPH 6700 FT 8:1 / 12% 0.01" / 0.1" 0.68" / 5.7" 35 11 AM Sat Mar 22 2025 23F 16F / 95% W 27 G 42 MPH 6700 FT 9:1 / 11% 0.01" / 0.1" 0.69" / 5.8" 36 12 PM Sat Mar 22 2025 25F 17F / 93% W 27 G 42 MPH 6600 FT 9:1 / 11% 0.02" / 0.2" 0.71" / 6.0" 37 01 PM Sat Mar 22 2025 26F 18F / 90% W 27 G 42 MPH 7000 FT 9:1 / 11% 0.01" / 0.1" 0.72" / 6.1" 38 02 PM Sat Mar 22 2025 28F 18F / 93% W 25 G 42 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.72" / 6.1" 39 03 PM Sat Mar 22 2025 28F 18F / 93% W 27 G 42 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.72" / 6.1" 40 04 PM Sat Mar 22 2025 28F 19F / 97% W 30 G 47 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.72" / 6.1" 41 05 PM Sat Mar 22 2025 28F 19F / 97% W 25 G 38 MPH 7200 FT 10:1 / 10% 0.02" / 0.2" 0.74" / 6.3" 42 06 PM Sat Mar 22 2025 27F 19F / 98% W 24 G 39 MPH 7000 FT 10:1 / 10% 0.11" / 1.1" 0.85" / 7.4" 43 07 PM Sat Mar 22 2025 25F 19F / 95% WNW 25 G 38 MPH 6900 FT 9:1 / 11% 0.01" / 0.1" 0.86" / 7.5" 44 08 PM Sat Mar 22 2025 24F 18F / 92% WNW 26 G 39 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.86" / 7.5" 45 09 PM Sat Mar 22 2025 22F 18F / 96% WNW 27 G 41 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.86" / 7.5" 46 10 PM Sat Mar 22 2025 21F 16F / 91% WNW 28 G 41 MPH 6100 FT 7:1 / 14% 0.00" / 0.0" 0.86" / 7.5" 47 11 PM Sat Mar 22 2025 21F 16F / 94% WNW 28 G 40 MPH 6100 FT 8:1 / 12% 0.00" / 0.0" 0.86" / 7.5" 48 12 AM Sun Mar 23 2025 21F 17F / 92% WNW 30 G 43 MPH 5900 FT 8:1 / 12% 0.00" / 0.0" 0.86" / 7.5"