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 12Z 09-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 AM Wed Apr 09 2025 26F 25F / 57% WNW 21 G 30 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Apr 09 2025 26F 24F / 55% WNW 22 G 31 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Apr 09 2025 26F 24F / 58% WNW 20 G 28 MPH 8500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Apr 09 2025 27F 25F / 57% W 19 G 25 MPH 8500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Apr 09 2025 31F 27F / 55% W 17 G 24 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Apr 09 2025 34F 28F / 46% W 16 G 24 MPH 8000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Apr 09 2025 36F 28F / 47% W 14 G 21 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Apr 09 2025 38F 29F / 45% W 15 G 22 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Apr 09 2025 40F 29F / 48% W 14 G 23 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Apr 09 2025 41F 30F / 52% W 16 G 24 MPH 8500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Apr 09 2025 39F 31F / 55% W 16 G 25 MPH 8600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Apr 09 2025 39F 31F / 57% W 16 G 25 MPH 8700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Apr 09 2025 37F 31F / 56% W 18 G 28 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Apr 09 2025 34F 31F / 50% W 19 G 29 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Apr 09 2025 32F 31F / 47% W 22 G 33 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Apr 09 2025 32F 31F / 42% W 24 G 33 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Apr 09 2025 32F 31F / 36% W 25 G 35 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Apr 09 2025 32F 31F / 32% W 25 G 33 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Apr 10 2025 31F 32F / 31% WNW 26 G 36 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Apr 10 2025 32F 32F / 25% WNW 27 G 36 MPH 8700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Apr 10 2025 32F 32F / 29% WNW 25 G 35 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Apr 10 2025 32F 32F / 29% WNW 24 G 33 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Apr 10 2025 32F 32F / 27% WNW 22 G 31 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Apr 10 2025 31F 32F / 28% WNW 21 G 28 MPH 8800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Apr 10 2025 31F 32F / 27% WNW 18 G 24 MPH 8700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Apr 10 2025 31F 32F / 25% WNW 17 G 22 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Apr 10 2025 31F 33F / 23% W 15 G 18 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Apr 10 2025 34F 34F / 20% W 15 G 21 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Apr 10 2025 36F 36F / 23% WSW 13 G 19 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Apr 10 2025 40F 37F / 26% WSW 13 G 22 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Apr 10 2025 43F 38F / 27% SW 13 G 23 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Apr 10 2025 46F 39F / 28% WSW 13 G 22 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Thu Apr 10 2025 48F 40F / 30% WSW 12 G 23 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Thu Apr 10 2025 49F 40F / 30% WSW 12 G 21 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Thu Apr 10 2025 48F 41F / 30% WSW 12 G 23 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Thu Apr 10 2025 48F 40F / 29% SW 13 G 23 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Thu Apr 10 2025 44F 40F / 31% WSW 13 G 23 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Thu Apr 10 2025 42F 41F / 31% WSW 14 G 23 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Thu Apr 10 2025 42F 40F / 33% WSW 12 G 17 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Thu Apr 10 2025 40F 39F / 35% SW 15 G 22 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Thu Apr 10 2025 40F 40F / 22% WSW 16 G 23 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Thu Apr 10 2025 40F 40F / 19% SW 14 G 22 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Fri Apr 11 2025 40F 40F / 23% SW 17 G 25 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Fri Apr 11 2025 39F 40F / 23% WSW 18 G 29 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Fri Apr 11 2025 40F 40F / 22% SW 18 G 27 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Fri Apr 11 2025 40F 40F / 24% SSW 19 G 29 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Fri Apr 11 2025 39F 39F / 25% SSW 20 G 30 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Fri Apr 11 2025 38F 39F / 24% SW 19 G 29 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Fri Apr 11 2025 38F 39F / 24% SW 19 G 27 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"