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 00Z 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 06 PM Fri Apr 18 2025 21F 13F / 88% N 17 G 28 MPH 4900 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Fri Apr 18 2025 18F 11F / 71% N 18 G 27 MPH 4800 FT 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Fri Apr 18 2025 14F 9F / 73% NNE 18 G 29 MPH 4700 FT 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Fri Apr 18 2025 11F 7F / 74% NNE 17 G 26 MPH 4500 FT 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Fri Apr 18 2025 10F 7F / 74% NE 16 G 25 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Fri Apr 18 2025 10F 8F / 61% NE 13 G 21 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Sat Apr 19 2025 9F 7F / 59% NE 16 G 24 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Sat Apr 19 2025 9F 7F / 58% NE 17 G 25 MPH 4500 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Sat Apr 19 2025 9F 7F / 59% NNE 18 G 25 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sat Apr 19 2025 9F 7F / 64% N 16 G 24 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sat Apr 19 2025 8F 6F / 66% N 18 G 27 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sat Apr 19 2025 8F 6F / 70% N 19 G 30 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sat Apr 19 2025 8F 6F / 71% N 20 G 30 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sat Apr 19 2025 8F 6F / 67% N 19 G 31 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sat Apr 19 2025 10F 8F / 64% N 20 G 31 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sat Apr 19 2025 12F 10F / 60% N 19 G 30 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sat Apr 19 2025 18F 12F / 52% N 17 G 28 MPH 4600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Sat Apr 19 2025 20F 14F / 50% N 17 G 25 MPH 4800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Sat Apr 19 2025 22F 15F / 52% N 15 G 25 MPH 5000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Sat Apr 19 2025 24F 17F / 61% NNW 14 G 23 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Sat Apr 19 2025 27F 18F / 78% NW 12 G 21 MPH 5500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Sat Apr 19 2025 28F 20F / 73% NW 12 G 21 MPH 5700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Sat Apr 19 2025 29F 21F / 73% NW 11 G 18 MPH 6000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Sat Apr 19 2025 29F 22F / 70% NW 11 G 21 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Sat Apr 19 2025 28F 21F / 68% NW 13 G 19 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Sat Apr 19 2025 26F 21F / 73% NW 13 G 19 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Sat Apr 19 2025 23F 20F / 67% WNW 12 G 17 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Sat Apr 19 2025 22F 20F / 57% WNW 14 G 20 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Sat Apr 19 2025 23F 21F / 52% WNW 16 G 23 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Sat Apr 19 2025 23F 21F / 58% WNW 19 G 28 MPH 6300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sun Apr 20 2025 24F 21F / 58% NW 23 G 32 MPH 6300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sun Apr 20 2025 23F 21F / 57% WNW 24 G 36 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sun Apr 20 2025 23F 20F / 58% WNW 24 G 37 MPH 6200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sun Apr 20 2025 23F 20F / 66% WNW 23 G 34 MPH 6200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sun Apr 20 2025 24F 20F / 72% WNW 22 G 32 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sun Apr 20 2025 24F 20F / 73% WNW 24 G 38 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Sun Apr 20 2025 24F 20F / 75% NW 24 G 38 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Sun Apr 20 2025 24F 21F / 69% WNW 23 G 31 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Sun Apr 20 2025 24F 22F / 68% WNW 20 G 29 MPH 6500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Sun Apr 20 2025 27F 24F / 72% WNW 19 G 29 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Sun Apr 20 2025 29F 24F / 67% WNW 17 G 25 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Sun Apr 20 2025 32F 25F / 71% WNW 16 G 23 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Sun Apr 20 2025 33F 26F / 63% W 16 G 25 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Sun Apr 20 2025 35F 27F / 61% W 15 G 25 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Sun Apr 20 2025 38F 28F / 57% W 15 G 25 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Sun Apr 20 2025 39F 29F / 58% W 13 G 22 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Sun Apr 20 2025 38F 30F / 60% W 15 G 25 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Sun Apr 20 2025 39F 31F / 59% W 17 G 29 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Sun Apr 20 2025 36F 30F / 59% WSW 17 G 28 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"