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 12Z 04-Apr-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 AM Fri Apr 04 2025 14F 10F / 85% NE 10 G 15 MPH 5100 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Fri Apr 04 2025 12F 9F / 93% NE 10 G 16 MPH 5200 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Fri Apr 04 2025 12F 10F / 86% NE 10 G 16 MPH 4600 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Fri Apr 04 2025 15F 11F / 83% NE 10 G 16 MPH 4700 FT 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Fri Apr 04 2025 17F 12F / 79% ENE 9 G 16 MPH 5000 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Fri Apr 04 2025 19F 13F / 77% ENE 8 G 14 MPH 5200 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Fri Apr 04 2025 21F 14F / 80% ENE 8 G 14 MPH 5300 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Fri Apr 04 2025 23F 15F / 78% ENE 7 G 11 MPH 5500 FT 21:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Fri Apr 04 2025 24F 17F / 80% N 7 G 14 MPH 5600 FT 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Fri Apr 04 2025 26F 17F / 80% NNW 11 G 19 MPH 5700 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Fri Apr 04 2025 24F 17F / 93% NW 12 G 20 MPH 5900 FT 14:1 / 7% 0.01" / 0.1" 0.01" / 0.1" 11 05 PM Fri Apr 04 2025 20F 14F / 91% NNW 15 G 25 MPH 5800 FT 15:1 / 7% 0.19" / 2.8" 0.20" / 2.9" 12 06 PM Fri Apr 04 2025 21F 15F / 90% N 14 G 23 MPH 5700 FT 14:1 / 7% 0.05" / 0.7" 0.25" / 3.6" 13 07 PM Fri Apr 04 2025 21F 14F / 98% N 14 G 22 MPH 5800 FT 16:1 / 6% 0.01" / 0.2" 0.26" / 3.8" 14 08 PM Fri Apr 04 2025 18F 12F / 94% N 13 G 22 MPH 5500 FT 16:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 15 09 PM Fri Apr 04 2025 17F 12F / 100% NNE 13 G 21 MPH 5700 FT 16:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 16 10 PM Fri Apr 04 2025 16F 12F / 99% NNE 15 G 27 MPH 5500 FT 17:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 17 11 PM Fri Apr 04 2025 17F 13F / 88% NE 14 G 26 MPH 5300 FT 18:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 18 12 AM Sat Apr 05 2025 15F 12F / 84% NE 14 G 25 MPH 5300 FT 19:1 / 5% 0.00" / 0.0" 0.26" / 3.8" 19 01 AM Sat Apr 05 2025 14F 11F / 74% NE 11 G 23 MPH 5200 FT 18:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 20 02 AM Sat Apr 05 2025 13F 11F / 75% NNE 11 G 19 MPH 5200 FT 17:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 21 03 AM Sat Apr 05 2025 12F 11F / 69% NNE 12 G 21 MPH 5100 FT 17:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 22 04 AM Sat Apr 05 2025 12F 11F / 69% NNE 15 G 22 MPH 5000 FT 14:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 23 05 AM Sat Apr 05 2025 12F 10F / 66% NE 16 G 23 MPH 4800 FT 15:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 24 06 AM Sat Apr 05 2025 12F 10F / 67% NNE 15 G 22 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 25 07 AM Sat Apr 05 2025 11F 10F / 61% N 14 G 22 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.26" / 3.8" 26 08 AM Sat Apr 05 2025 11F 10F / 58% NNE 13 G 22 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 27 09 AM Sat Apr 05 2025 12F 10F / 60% NNE 13 G 23 MPH 4300 FT 16:1 / 6% 0.00" / 0.0" 0.26" / 3.8" 28 10 AM Sat Apr 05 2025 16F 13F / 54% NE 13 G 22 MPH 4700 FT 15:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 29 11 AM Sat Apr 05 2025 19F 14F / 55% NE 13 G 20 MPH 4900 FT 11:1 / 9% 0.00" / 0.0" 0.26" / 3.8" 30 12 PM Sat Apr 05 2025 22F 15F / 49% NE 11 G 19 MPH 5200 FT 13:1 / 8% 0.00" / 0.0" 0.26" / 3.8" 31 01 PM Sat Apr 05 2025 23F 16F / 51% NNE 10 G 17 MPH 5400 FT 14:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 32 02 PM Sat Apr 05 2025 25F 17F / 61% N 9 G 17 MPH 5600 FT 14:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 33 03 PM Sat Apr 05 2025 27F 17F / 69% N 10 G 17 MPH 5700 FT 14:1 / 7% 0.00" / 0.0" 0.26" / 3.8" 34 04 PM Sat Apr 05 2025 27F 19F / 67% NNW 11 G 20 MPH 5800 FT 12:1 / 8% 0.00" / 0.0" 0.26" / 3.8" 35 05 PM Sat Apr 05 2025 26F 19F / 66% NNW 11 G 21 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.26" / 3.8" 36 06 PM Sat Apr 05 2025 24F 19F / 57% N 13 G 24 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.26" / 3.8" 37 07 PM Sat Apr 05 2025 24F 21F / 46% N 14 G 22 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 38 08 PM Sat Apr 05 2025 19F 19F / 47% N 14 G 20 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 39 09 PM Sat Apr 05 2025 18F 19F / 48% N 12 G 18 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 40 10 PM Sat Apr 05 2025 18F 19F / 46% N 13 G 20 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 41 11 PM Sat Apr 05 2025 18F 19F / 42% N 13 G 16 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 42 12 AM Sun Apr 06 2025 18F 19F / 43% N 13 G 18 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 43 01 AM Sun Apr 06 2025 18F 19F / 45% NNW 15 G 19 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 44 02 AM Sun Apr 06 2025 18F 19F / 44% NW 14 G 19 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 45 03 AM Sun Apr 06 2025 18F 19F / 44% NW 16 G 21 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 46 04 AM Sun Apr 06 2025 18F 19F / 39% NW 17 G 22 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 47 05 AM Sun Apr 06 2025 18F 19F / 38% WNW 18 G 23 MPH 5500 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8" 48 06 AM Sun Apr 06 2025 17F 18F / 37% WNW 18 G 23 MPH 5500 FT 10:1 / 10% 0.00" / 0.0" 0.26" / 3.8"