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 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 PM Fri Apr 04 2025 22F 16F / 95% NNW 14 G 24 MPH 6000 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Fri Apr 04 2025 21F 15F / 97% N 14 G 21 MPH 6100 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Fri Apr 04 2025 20F 13F / 100% N 15 G 24 MPH 5600 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Fri Apr 04 2025 18F 13F / 93% N 14 G 23 MPH 5800 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Fri Apr 04 2025 16F 13F / 83% NNE 13 G 21 MPH 5800 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Fri Apr 04 2025 15F 13F / 76% NE 13 G 21 MPH 5700 FT 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Sat Apr 05 2025 14F 12F / 91% NE 12 G 19 MPH 5600 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Sat Apr 05 2025 15F 13F / 78% NNE 9 G 14 MPH 5600 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Sat Apr 05 2025 14F 12F / 73% N 9 G 12 MPH 5500 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sat Apr 05 2025 13F 12F / 74% NNE 10 G 17 MPH 5300 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sat Apr 05 2025 13F 11F / 83% NNE 13 G 18 MPH 5200 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sat Apr 05 2025 13F 10F / 85% NNE 14 G 21 MPH 5000 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sat Apr 05 2025 11F 10F / 78% N 14 G 20 MPH 4700 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sat Apr 05 2025 12F 10F / 73% N 13 G 20 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sat Apr 05 2025 11F 10F / 69% N 14 G 21 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sat Apr 05 2025 12F 11F / 65% N 13 G 21 MPH 4400 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sat Apr 05 2025 17F 13F / 60% NNE 11 G 20 MPH 4900 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Sat Apr 05 2025 20F 14F / 60% NNE 12 G 18 MPH 5100 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Sat Apr 05 2025 22F 14F / 56% NNE 11 G 18 MPH 5200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Sat Apr 05 2025 23F 15F / 65% N 9 G 18 MPH 5400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Sat Apr 05 2025 24F 16F / 71% N 10 G 19 MPH 5500 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Sat Apr 05 2025 27F 17F / 61% N 11 G 20 MPH 5700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Sat Apr 05 2025 25F 18F / 57% N 9 G 19 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Sat Apr 05 2025 25F 19F / 54% NNW 12 G 22 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Sat Apr 05 2025 23F 19F / 46% N 13 G 22 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Sat Apr 05 2025 23F 20F / 45% N 13 G 22 MPH 6100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Sat Apr 05 2025 19F 18F / 44% N 14 G 21 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Sat Apr 05 2025 18F 18F / 44% N 14 G 22 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Sat Apr 05 2025 18F 18F / 42% N 15 G 21 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Sat Apr 05 2025 17F 18F / 45% NNW 14 G 20 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sun Apr 06 2025 18F 18F / 47% NNW 14 G 18 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sun Apr 06 2025 17F 18F / 46% NW 16 G 21 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sun Apr 06 2025 17F 18F / 44% NW 17 G 23 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sun Apr 06 2025 18F 18F / 43% NW 18 G 26 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sun Apr 06 2025 17F 17F / 44% NW 20 G 25 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sun Apr 06 2025 17F 17F / 47% NW 19 G 27 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Sun Apr 06 2025 17F 17F / 45% NW 19 G 27 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Sun Apr 06 2025 16F 17F / 37% NW 21 G 27 MPH 5500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Sun Apr 06 2025 17F 18F / 32% ESE 19 G 24 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Sun Apr 06 2025 19F 20F / 30% NW 18 G 24 MPH 5300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Sun Apr 06 2025 23F 21F / 34% NW 16 G 22 MPH 5300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Sun Apr 06 2025 27F 23F / 35% NW 13 G 20 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Sun Apr 06 2025 29F 23F / 45% NW 12 G 17 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Sun Apr 06 2025 31F 24F / 47% NW 11 G 17 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Sun Apr 06 2025 31F 24F / 51% NW 10 G 16 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Sun Apr 06 2025 34F 25F / 54% WNW 10 G 16 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Sun Apr 06 2025 32F 26F / 54% WNW 11 G 18 MPH 6600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Sun Apr 06 2025 32F 26F / 57% WNW 12 G 19 MPH 6800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Sun Apr 06 2025 31F 26F / 50% WNW 12 G 20 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0"