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 18Z 27-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 PM Sun Apr 27 2025 28F 20F / 85% SSE 9 G 27 MPH 6400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Sun Apr 27 2025 28F 20F / 89% S 13 G 33 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Sun Apr 27 2025 28F 20F / 71% S 14 G 32 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Sun Apr 27 2025 30F 21F / 70% SSW 13 G 30 MPH 6300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Sun Apr 27 2025 30F 21F / 62% SSW 13 G 29 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Sun Apr 27 2025 30F 22F / 59% SSW 13 G 27 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Sun Apr 27 2025 29F 21F / 65% SSW 13 G 28 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Sun Apr 27 2025 26F 20F / 65% S 13 G 28 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Sun Apr 27 2025 24F 18F / 70% S 13 G 28 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Sun Apr 27 2025 22F 17F / 66% SSW 15 G 29 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Sun Apr 27 2025 20F 16F / 73% SSW 11 G 24 MPH 6200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Sun Apr 27 2025 20F 15F / 81% SSW 13 G 25 MPH 6500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Mon Apr 28 2025 18F 15F / 78% SW 14 G 25 MPH 6400 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Mon Apr 28 2025 18F 15F / 81% WSW 11 G 19 MPH 6400 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Mon Apr 28 2025 18F 14F / 86% SW 9 G 16 MPH 6600 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Mon Apr 28 2025 19F 15F / 78% S 11 G 20 MPH 6200 FT 13:1 / 8% 0.01" / 0.1" 0.01" / 0.1" 16 04 AM Mon Apr 28 2025 19F 15F / 85% SSE 9 G 16 MPH 6300 FT 13:1 / 8% 0.00" / 0.0" 0.01" / 0.1" 17 05 AM Mon Apr 28 2025 20F 15F / 89% SSE 8 G 13 MPH 6400 FT 13:1 / 8% 0.00" / 0.0" 0.01" / 0.1" 18 06 AM Mon Apr 28 2025 20F 16F / 82% SSE 7 G 10 MPH 6400 FT 17:1 / 6% 0.00" / 0.0" 0.01" / 0.1" 19 07 AM Mon Apr 28 2025 20F 16F / 82% ESE 6 G 10 MPH 6300 FT 15:1 / 7% 0.00" / 0.0" 0.01" / 0.1" 20 08 AM Mon Apr 28 2025 21F 17F / 75% E 6 G 9 MPH 6300 FT 16:1 / 6% 0.00" / 0.0" 0.01" / 0.1" 21 09 AM Mon Apr 28 2025 22F 18F / 81% E 7 G 11 MPH 6500 FT 15:1 / 7% 0.00" / 0.0" 0.01" / 0.1" 22 10 AM Mon Apr 28 2025 25F 18F / 84% NE 5 G 8 MPH 6600 FT 16:1 / 6% 0.00" / 0.0" 0.01" / 0.1" 23 11 AM Mon Apr 28 2025 28F 21F / 80% N 6 G 10 MPH 7000 FT 16:1 / 6% 0.00" / 0.0" 0.01" / 0.1" 24 12 PM Mon Apr 28 2025 30F 22F / 88% NW 6 G 10 MPH 7400 FT 15:1 / 7% 0.00" / 0.0" 0.01" / 0.1" 25 01 PM Mon Apr 28 2025 31F 23F / 87% NW 12 G 19 MPH 7500 FT 14:1 / 7% 0.00" / 0.0" 0.01" / 0.1" 26 02 PM Mon Apr 28 2025 32F 24F / 92% NW 12 G 21 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 27 03 PM Mon Apr 28 2025 34F 24F / 86% NW 10 G 22 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 28 04 PM Mon Apr 28 2025 34F 25F / 84% NW 14 G 22 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 29 05 PM Mon Apr 28 2025 34F 25F / 85% NW 14 G 23 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 30 06 PM Mon Apr 28 2025 31F 24F / 84% NW 14 G 22 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 31 07 PM Mon Apr 28 2025 29F 23F / 96% NW 15 G 23 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.01" / 0.1" 32 08 PM Mon Apr 28 2025 26F 21F / 85% NW 13 G 19 MPH 8100 FT 12:1 / 8% 0.00" / 0.0" 0.01" / 0.1" 33 09 PM Mon Apr 28 2025 23F 20F / 83% NW 10 G 16 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 34 10 PM Mon Apr 28 2025 23F 21F / 76% NNW 7 G 13 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 35 11 PM Mon Apr 28 2025 23F 21F / 85% NW 7 G 13 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 36 12 AM Tue Apr 29 2025 23F 21F / 79% NW 8 G 13 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 37 01 AM Tue Apr 29 2025 21F 20F / 83% NW 9 G 12 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 38 02 AM Tue Apr 29 2025 22F 20F / 76% WNW 9 G 11 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 39 03 AM Tue Apr 29 2025 21F 20F / 88% NW 9 G 11 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1" 40 04 AM Tue Apr 29 2025 21F 19F / 93% NW 9 G 14 MPH 8200 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 41 05 AM Tue Apr 29 2025 21F 20F / 77% WNW 11 G 15 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 42 06 AM Tue Apr 29 2025 22F 20F / 73% W 11 G 15 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 43 07 AM Tue Apr 29 2025 21F 20F / 70% ESE 10 G 14 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 44 08 AM Tue Apr 29 2025 23F 21F / 75% ENE 9 G 16 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 45 09 AM Tue Apr 29 2025 27F 24F / 81% NNW 11 G 17 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 46 10 AM Tue Apr 29 2025 29F 25F / 95% NNW 9 G 14 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 47 11 AM Tue Apr 29 2025 31F 25F / 88% NW 8 G 14 MPH 8300 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.1" 48 12 PM Tue Apr 29 2025 34F 27F / 84% WNW 7 G 13 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.01" / 0.1"