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 19-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 12 AM Sat Apr 19 2025 9F 8F / 58% ENE 14 G 20 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Sat Apr 19 2025 9F 8F / 58% NE 14 G 20 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Sat Apr 19 2025 9F 7F / 59% NNE 15 G 21 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Sat Apr 19 2025 8F 7F / 56% N 16 G 22 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Sat Apr 19 2025 8F 7F / 56% N 18 G 26 MPH 4500 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Sat Apr 19 2025 8F 7F / 61% N 19 G 28 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Sat Apr 19 2025 8F 7F / 59% N 21 G 30 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Sat Apr 19 2025 8F 7F / 55% N 20 G 29 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Sat Apr 19 2025 10F 8F / 54% N 20 G 29 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Sat Apr 19 2025 13F 10F / 51% N 20 G 31 MPH 4500 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Sat Apr 19 2025 17F 13F / 50% N 18 G 29 MPH 4700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Sat Apr 19 2025 19F 14F / 50% N 17 G 27 MPH 4900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Sat Apr 19 2025 22F 15F / 61% N 16 G 27 MPH 4800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Sat Apr 19 2025 24F 17F / 66% NNW 15 G 25 MPH 5100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Sat Apr 19 2025 27F 18F / 79% NW 13 G 20 MPH 5400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Sat Apr 19 2025 29F 20F / 76% NW 11 G 20 MPH 5700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Sat Apr 19 2025 29F 21F / 70% NW 12 G 19 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Sat Apr 19 2025 30F 21F / 74% NW 12 G 19 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Sat Apr 19 2025 27F 21F / 71% NW 12 G 20 MPH 6100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Sat Apr 19 2025 26F 21F / 71% WNW 12 G 19 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Sat Apr 19 2025 23F 20F / 66% NW 12 G 17 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Sat Apr 19 2025 22F 20F / 57% NW 15 G 21 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Sat Apr 19 2025 22F 21F / 55% NW 16 G 22 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Sat Apr 19 2025 23F 21F / 59% NW 18 G 25 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sun Apr 20 2025 23F 21F / 59% NW 21 G 29 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sun Apr 20 2025 23F 21F / 56% NW 23 G 33 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sun Apr 20 2025 23F 20F / 56% WNW 25 G 36 MPH 6100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sun Apr 20 2025 23F 20F / 59% WNW 25 G 37 MPH 6200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sun Apr 20 2025 23F 20F / 60% WNW 25 G 38 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sun Apr 20 2025 24F 21F / 65% WNW 25 G 40 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sun Apr 20 2025 23F 20F / 66% WNW 25 G 38 MPH 6200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sun Apr 20 2025 23F 20F / 72% WNW 24 G 36 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sun Apr 20 2025 23F 20F / 67% WNW 23 G 31 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sun Apr 20 2025 25F 22F / 65% WNW 19 G 27 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sun Apr 20 2025 28F 22F / 64% WNW 16 G 25 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sun Apr 20 2025 30F 23F / 68% WNW 14 G 21 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sun Apr 20 2025 33F 25F / 67% WNW 16 G 24 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sun Apr 20 2025 36F 27F / 61% W 15 G 23 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Sun Apr 20 2025 37F 28F / 60% W 14 G 22 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Sun Apr 20 2025 39F 29F / 56% W 14 G 23 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Sun Apr 20 2025 39F 30F / 55% W 14 G 24 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Sun Apr 20 2025 39F 30F / 54% W 15 G 24 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Sun Apr 20 2025 37F 31F / 52% W 18 G 28 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Sun Apr 20 2025 33F 29F / 49% WSW 16 G 26 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Sun Apr 20 2025 31F 28F / 48% WSW 19 G 29 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Sun Apr 20 2025 30F 27F / 46% SW 20 G 33 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Sun Apr 20 2025 30F 27F / 49% SW 21 G 34 MPH 8400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Sun Apr 20 2025 29F 27F / 52% WSW 24 G 40 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Mon Apr 21 2025 30F 27F / 51% W 21 G 39 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0"