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 06-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 06 2025 29F 22F / 50% NNW 16 G 26 MPH 6200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Sun Apr 06 2025 31F 24F / 47% WSW 14 G 22 MPH 6300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Sun Apr 06 2025 32F 24F / 52% NW 13 G 21 MPH 6600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Sun Apr 06 2025 33F 24F / 52% W 13 G 21 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Sun Apr 06 2025 32F 25F / 53% WNW 12 G 19 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Sun Apr 06 2025 30F 26F / 48% NW 13 G 20 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Sun Apr 06 2025 30F 26F / 53% NW 13 G 20 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Sun Apr 06 2025 29F 26F / 58% ESE 13 G 18 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Sun Apr 06 2025 26F 24F / 59% NW 14 G 20 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Sun Apr 06 2025 25F 24F / 48% NW 13 G 18 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Sun Apr 06 2025 24F 24F / 42% NW 12 G 17 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Sun Apr 06 2025 25F 24F / 37% WNW 13 G 17 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Mon Apr 07 2025 25F 24F / 38% WNW 11 G 16 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Mon Apr 07 2025 25F 25F / 36% WNW 13 G 17 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Mon Apr 07 2025 25F 25F / 34% WNW 13 G 16 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Mon Apr 07 2025 25F 25F / 34% WNW 12 G 14 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Mon Apr 07 2025 25F 25F / 34% W 13 G 15 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Mon Apr 07 2025 25F 25F / 33% W 13 G 17 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Mon Apr 07 2025 24F 25F / 34% W 15 G 19 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Mon Apr 07 2025 25F 25F / 31% W 16 G 20 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Mon Apr 07 2025 25F 25F / 33% W 15 G 20 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Mon Apr 07 2025 27F 27F / 38% W 15 G 20 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Mon Apr 07 2025 31F 28F / 40% W 14 G 21 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Mon Apr 07 2025 34F 29F / 41% W 14 G 22 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Mon Apr 07 2025 37F 30F / 41% WSW 14 G 22 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Mon Apr 07 2025 38F 31F / 39% W 13 G 21 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Mon Apr 07 2025 41F 32F / 38% WSW 12 G 21 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Mon Apr 07 2025 41F 32F / 35% WSW 13 G 22 MPH 8400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Mon Apr 07 2025 40F 33F / 36% SW 14 G 26 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Mon Apr 07 2025 40F 33F / 36% SW 16 G 28 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Mon Apr 07 2025 37F 32F / 35% SSW 16 G 28 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Mon Apr 07 2025 34F 31F / 38% SW 19 G 33 MPH 8700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Mon Apr 07 2025 33F 31F / 32% SW 21 G 38 MPH 8700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Mon Apr 07 2025 32F 31F / 31% SSW 21 G 36 MPH 8900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Mon Apr 07 2025 33F 31F / 31% SW 24 G 41 MPH 8900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Mon Apr 07 2025 33F 31F / 28% SW 27 G 47 MPH 9100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Tue Apr 08 2025 32F 30F / 32% WSW 28 G 48 MPH 8600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Tue Apr 08 2025 31F 30F / 37% W 24 G 39 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Tue Apr 08 2025 33F 31F / 40% W 21 G 34 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Tue Apr 08 2025 29F 27F / 49% W 22 G 36 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Tue Apr 08 2025 29F 25F / 79% W 21 G 32 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Tue Apr 08 2025 27F 24F / 92% W 17 G 30 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Tue Apr 08 2025 26F 24F / 96% W 17 G 28 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Tue Apr 08 2025 26F 23F / 83% WSW 21 G 34 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Tue Apr 08 2025 27F 24F / 80% W 21 G 36 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Tue Apr 08 2025 30F 27F / 76% WSW 23 G 37 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Tue Apr 08 2025 32F 28F / 73% WSW 23 G 39 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Tue Apr 08 2025 34F 28F / 76% WSW 22 G 39 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Tue Apr 08 2025 36F 28F / 73% WSW 22 G 38 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0"