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 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 PM Tue Apr 08 2025 37F 30F / 67% W 19 G 30 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Tue Apr 08 2025 34F 29F / 65% W 19 G 29 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Tue Apr 08 2025 31F 28F / 66% W 20 G 30 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Tue Apr 08 2025 31F 28F / 65% W 20 G 30 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Tue Apr 08 2025 30F 27F / 66% W 23 G 33 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Tue Apr 08 2025 30F 27F / 60% W 24 G 34 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Wed Apr 09 2025 29F 27F / 67% W 24 G 36 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Wed Apr 09 2025 29F 27F / 55% W 27 G 39 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Wed Apr 09 2025 29F 27F / 48% WNW 27 G 39 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Wed Apr 09 2025 29F 27F / 44% WNW 26 G 39 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Wed Apr 09 2025 28F 26F / 42% WNW 25 G 38 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Wed Apr 09 2025 28F 26F / 40% WNW 25 G 36 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Wed Apr 09 2025 28F 26F / 43% WNW 25 G 36 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Wed Apr 09 2025 27F 25F / 48% W 26 G 36 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Wed Apr 09 2025 27F 25F / 47% W 26 G 36 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Wed Apr 09 2025 27F 26F / 49% W 24 G 34 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Wed Apr 09 2025 32F 27F / 50% W 21 G 30 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Wed Apr 09 2025 34F 28F / 49% W 18 G 27 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Wed Apr 09 2025 36F 28F / 45% W 17 G 27 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Wed Apr 09 2025 39F 30F / 45% W 17 G 28 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Wed Apr 09 2025 40F 30F / 51% W 19 G 29 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Wed Apr 09 2025 41F 30F / 54% W 19 G 30 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Wed Apr 09 2025 40F 32F / 56% W 19 G 29 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Wed Apr 09 2025 40F 32F / 54% W 19 G 29 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Wed Apr 09 2025 36F 32F / 57% W 20 G 30 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Wed Apr 09 2025 34F 31F / 55% W 21 G 32 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Wed Apr 09 2025 32F 30F / 51% W 23 G 33 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Wed Apr 09 2025 32F 31F / 41% W 24 G 33 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Wed Apr 09 2025 32F 32F / 36% W 24 G 35 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Wed Apr 09 2025 32F 32F / 34% WNW 25 G 35 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Thu Apr 10 2025 32F 33F / 29% WNW 26 G 35 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Thu Apr 10 2025 32F 33F / 26% WNW 25 G 35 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Thu Apr 10 2025 32F 33F / 32% WNW 24 G 32 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Thu Apr 10 2025 32F 32F / 26% WNW 22 G 31 MPH 9000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Thu Apr 10 2025 32F 32F / 26% S 18 G 26 MPH 9000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Thu Apr 10 2025 32F 32F / 24% WSW 17 G 22 MPH 8800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Thu Apr 10 2025 32F 32F / 26% W 15 G 19 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Thu Apr 10 2025 31F 32F / 23% W 15 G 19 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Thu Apr 10 2025 32F 34F / 23% WSW 16 G 24 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Thu Apr 10 2025 35F 36F / 28% WSW 16 G 24 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Thu Apr 10 2025 38F 37F / 30% WSW 16 G 24 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Thu Apr 10 2025 41F 37F / 30% WSW 14 G 23 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Thu Apr 10 2025 43F 38F / 28% WSW 14 G 23 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Thu Apr 10 2025 46F 40F / 28% WSW 13 G 23 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Thu Apr 10 2025 48F 40F / 32% WSW 12 G 21 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Thu Apr 10 2025 50F 40F / 35% WSW 12 G 21 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Thu Apr 10 2025 47F 41F / 36% WSW 11 G 22 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Thu Apr 10 2025 46F 41F / 35% WSW 13 G 25 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Thu Apr 10 2025 42F 41F / 39% WSW 15 G 24 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"