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 05-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 Sat Apr 05 2025 10F 9F / 74% NNE 15 G 20 MPH 4500 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sat Apr 05 2025 11F 9F / 75% N 15 G 23 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sat Apr 05 2025 10F 9F / 74% NNE 16 G 26 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sat Apr 05 2025 12F 10F / 62% NNE 16 G 23 MPH 4500 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sat Apr 05 2025 17F 13F / 57% NNE 14 G 21 MPH 4900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sat Apr 05 2025 20F 14F / 53% NNE 13 G 20 MPH 5200 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sat Apr 05 2025 22F 15F / 53% NNE 12 G 21 MPH 5400 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sat Apr 05 2025 23F 15F / 60% N 10 G 21 MPH 5400 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sat Apr 05 2025 24F 16F / 70% N 12 G 19 MPH 5600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sat Apr 05 2025 26F 17F / 64% N 11 G 21 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sat Apr 05 2025 25F 18F / 57% N 11 G 22 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sat Apr 05 2025 25F 19F / 60% NNW 13 G 21 MPH 6100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sat Apr 05 2025 25F 20F / 70% NNW 13 G 22 MPH 6100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sat Apr 05 2025 24F 20F / 65% NNW 14 G 23 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sat Apr 05 2025 20F 19F / 58% NNW 15 G 22 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sat Apr 05 2025 19F 19F / 50% NNW 17 G 24 MPH 5800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sat Apr 05 2025 19F 19F / 43% NNW 18 G 26 MPH 5800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sat Apr 05 2025 18F 19F / 41% NNW 20 G 27 MPH 5800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sun Apr 06 2025 18F 18F / 43% NW 19 G 26 MPH 5900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sun Apr 06 2025 18F 18F / 43% NW 20 G 27 MPH 5800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sun Apr 06 2025 18F 18F / 41% NW 20 G 27 MPH 5800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sun Apr 06 2025 18F 18F / 36% NW 20 G 28 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sun Apr 06 2025 18F 18F / 31% NW 18 G 25 MPH 5500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sun Apr 06 2025 17F 17F / 29% NW 21 G 29 MPH 5500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sun Apr 06 2025 17F 17F / 33% NW 20 G 29 MPH 5500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sun Apr 06 2025 17F 17F / 35% NW 16 G 27 MPH 5500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sun Apr 06 2025 18F 17F / 36% NW 21 G 29 MPH 5500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sun Apr 06 2025 19F 18F / 41% NNW 17 G 26 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sun Apr 06 2025 22F 21F / 34% NW 17 G 23 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sun Apr 06 2025 26F 22F / 37% NNW 10 G 21 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sun Apr 06 2025 29F 22F / 43% NW 13 G 19 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sun Apr 06 2025 31F 23F / 49% NW 12 G 18 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Sun Apr 06 2025 32F 24F / 51% WNW 9 G 16 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Sun Apr 06 2025 33F 24F / 49% NW 10 G 18 MPH 6600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Sun Apr 06 2025 32F 25F / 50% NW 12 G 19 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Sun Apr 06 2025 32F 25F / 54% NW 12 G 19 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Sun Apr 06 2025 29F 25F / 54% NW 13 G 20 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Sun Apr 06 2025 30F 27F / 56% E 14 G 15 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Sun Apr 06 2025 26F 25F / 57% S 11 G 15 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Sun Apr 06 2025 25F 24F / 48% NW 13 G 18 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Sun Apr 06 2025 24F 24F / 42% NW 13 G 18 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Sun Apr 06 2025 24F 24F / 38% ENE 12 G 14 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Mon Apr 07 2025 24F 24F / 39% NNW 12 G 14 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Mon Apr 07 2025 23F 24F / 37% WNW 13 G 15 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Mon Apr 07 2025 24F 24F / 36% WNW 13 G 14 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Mon Apr 07 2025 24F 24F / 37% W 13 G 16 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Mon Apr 07 2025 24F 25F / 35% W 15 G 18 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Mon Apr 07 2025 25F 25F / 35% W 15 G 19 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Mon Apr 07 2025 25F 25F / 34% W 16 G 19 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"