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 14-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 14 2025 15F 8F / 93% WNW 16 G 28 MPH 4400 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Fri Mar 14 2025 15F 8F / 95% WNW 19 G 30 MPH 4500 FT 18:1 / 6% 0.04" / 0.7" 0.04" / 0.7" 2 02 AM Fri Mar 14 2025 14F 7F / 99% WNW 23 G 35 MPH 4500 FT 16:1 / 6% 0.07" / 1.1" 0.11" / 1.8" 3 03 AM Fri Mar 14 2025 13F 6F / 94% WNW 22 G 34 MPH 4400 FT 20:1 / 5% 0.07" / 1.4" 0.18" / 3.2" 4 04 AM Fri Mar 14 2025 12F 5F / 94% WNW 23 G 36 MPH 4300 FT 19:1 / 5% 0.05" / 1.0" 0.23" / 4.2" 5 05 AM Fri Mar 14 2025 12F 6F / 91% WNW 23 G 36 MPH ≤ KSLC 18:1 / 6% 0.05" / 0.9" 0.28" / 5.1" 6 06 AM Fri Mar 14 2025 11F 5F / 91% WNW 25 G 39 MPH ≤ KSLC 15:1 / 7% 0.04" / 0.6" 0.32" / 5.7" 7 07 AM Fri Mar 14 2025 10F 3F / 93% WNW 21 G 32 MPH ≤ KSLC 17:1 / 6% 0.05" / 0.8" 0.37" / 6.5" 8 08 AM Fri Mar 14 2025 10F 3F / 81% WNW 21 G 29 MPH ≤ KSLC 19:1 / 5% 0.01" / 0.2" 0.38" / 6.7" 9 09 AM Fri Mar 14 2025 10F 3F / 81% WNW 20 G 29 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 10 10 AM Fri Mar 14 2025 11F 3F / 81% WNW 17 G 24 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 11 11 AM Fri Mar 14 2025 12F 3F / 82% WNW 15 G 24 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 0.38" / 6.7" 12 12 PM Fri Mar 14 2025 15F 5F / 80% W 12 G 20 MPH ≤ KSLC 24:1 / 4% 0.00" / 0.0" 0.38" / 6.7" 13 01 PM Fri Mar 14 2025 16F 7F / 85% W 13 G 22 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 0.38" / 6.7" 14 02 PM Fri Mar 14 2025 17F 8F / 97% WSW 13 G 24 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 15 03 PM Fri Mar 14 2025 18F 9F / 94% W 14 G 23 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 16 04 PM Fri Mar 14 2025 18F 8F / 93% WSW 14 G 25 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 17 05 PM Fri Mar 14 2025 18F 8F / 90% WSW 12 G 20 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 18 06 PM Fri Mar 14 2025 17F 8F / 93% WSW 12 G 19 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 19 07 PM Fri Mar 14 2025 16F 8F / 97% WSW 13 G 21 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 20 08 PM Fri Mar 14 2025 15F 7F / 94% WSW 14 G 22 MPH 4300 FT 19:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 21 09 PM Fri Mar 14 2025 13F 7F / 91% WSW 15 G 24 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 22 10 PM Fri Mar 14 2025 11F 6F / 90% SW 14 G 23 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 23 11 PM Fri Mar 14 2025 11F 6F / 93% WSW 15 G 24 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 24 12 AM Sat Mar 15 2025 11F 7F / 85% WSW 15 G 20 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 25 01 AM Sat Mar 15 2025 11F 6F / 90% WSW 12 G 18 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 26 02 AM Sat Mar 15 2025 11F 6F / 92% W 14 G 20 MPH 4900 FT 21:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 27 03 AM Sat Mar 15 2025 11F 6F / 97% W 14 G 21 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 28 04 AM Sat Mar 15 2025 11F 6F / 93% W 15 G 21 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 29 05 AM Sat Mar 15 2025 12F 6F / 96% WNW 15 G 20 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 30 06 AM Sat Mar 15 2025 13F 6F / 96% WNW 17 G 26 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.38" / 6.7" 31 07 AM Sat Mar 15 2025 13F 7F / 94% WNW 18 G 28 MPH ≤ KSLC 17:1 / 6% 0.01" / 0.2" 0.39" / 6.9" 32 08 AM Sat Mar 15 2025 13F 7F / 93% WNW 20 G 30 MPH ≤ KSLC 17:1 / 6% 0.02" / 0.3" 0.41" / 7.2" 33 09 AM Sat Mar 15 2025 14F 7F / 91% WNW 20 G 31 MPH 4400 FT 16:1 / 6% 0.01" / 0.2" 0.42" / 7.4" 34 10 AM Sat Mar 15 2025 15F 7F / 91% WNW 19 G 31 MPH 4700 FT 16:1 / 6% 0.00" / 0.0" 0.42" / 7.4" 35 11 AM Sat Mar 15 2025 16F 8F / 91% WNW 18 G 28 MPH 4400 FT 17:1 / 6% 0.00" / 0.0" 0.42" / 7.4" 36 12 PM Sat Mar 15 2025 18F 8F / 88% WNW 20 G 30 MPH 4500 FT 17:1 / 6% 0.02" / 0.3" 0.44" / 7.7" 37 01 PM Sat Mar 15 2025 19F 10F / 89% WNW 19 G 30 MPH 4500 FT 18:1 / 6% 0.02" / 0.4" 0.46" / 8.1" 38 02 PM Sat Mar 15 2025 21F 11F / 86% W 19 G 30 MPH 4400 FT 16:1 / 6% 0.04" / 0.6" 0.50" / 8.7" 39 03 PM Sat Mar 15 2025 21F 10F / 92% W 20 G 31 MPH 4600 FT 18:1 / 6% 0.02" / 0.4" 0.52" / 9.1" 40 04 PM Sat Mar 15 2025 21F 11F / 97% W 22 G 35 MPH 4900 FT 17:1 / 6% 0.02" / 0.3" 0.54" / 9.4" 41 05 PM Sat Mar 15 2025 20F 10F / 94% W 22 G 35 MPH 4900 FT 18:1 / 6% 0.02" / 0.4" 0.56" / 9.8" 42 06 PM Sat Mar 15 2025 19F 10F / 90% W 24 G 38 MPH 5000 FT 18:1 / 6% 0.01" / 0.2" 0.57" / 10.0" 43 07 PM Sat Mar 15 2025 18F 11F / 87% W 25 G 39 MPH 5100 FT 17:1 / 6% 0.00" / 0.0" 0.57" / 10.0" 44 08 PM Sat Mar 15 2025 15F 10F / 86% W 26 G 40 MPH 4900 FT 15:1 / 7% 0.00" / 0.0" 0.57" / 10.0" 45 09 PM Sat Mar 15 2025 14F 9F / 80% W 28 G 41 MPH 4900 FT 17:1 / 6% 0.00" / 0.0" 0.57" / 10.0" 46 10 PM Sat Mar 15 2025 14F 10F / 79% W 28 G 41 MPH 4900 FT 11:1 / 9% 0.00" / 0.0" 0.57" / 10.0" 47 11 PM Sat Mar 15 2025 14F 9F / 78% W 29 G 43 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.57" / 10.0" 48 12 AM Sun Mar 16 2025 16F 11F / 84% W 32 G 47 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.57" / 10.0"