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-May-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 Tue May 06 2025 34F 26F / 90% E 8 G 24 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Tue May 06 2025 36F 29F / 100% E 7 G 23 MPH 9000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Tue May 06 2025 39F 30F / 92% E 7 G 22 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Tue May 06 2025 41F 32F / 88% E 6 G 19 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Tue May 06 2025 39F 31F / 95% E 4 G 14 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Tue May 06 2025 36F 29F / 97% NE 10 G 20 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Tue May 06 2025 34F 29F / 90% NNE 9 G 20 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Tue May 06 2025 34F 29F / 89% NE 12 G 23 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Tue May 06 2025 32F 29F / 89% NE 10 G 21 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Tue May 06 2025 31F 28F / 87% ENE 10 G 21 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Tue May 06 2025 32F 29F / 81% E 8 G 15 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Tue May 06 2025 32F 29F / 93% E 11 G 19 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Wed May 07 2025 32F 29F / 85% E 12 G 21 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Wed May 07 2025 33F 29F / 81% E 14 G 26 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Wed May 07 2025 33F 28F / 85% E 16 G 27 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Wed May 07 2025 31F 28F / 84% ESE 14 G 23 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Wed May 07 2025 31F 29F / 74% ESE 14 G 22 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Wed May 07 2025 31F 29F / 75% E 14 G 21 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Wed May 07 2025 31F 29F / 68% E 12 G 18 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Wed May 07 2025 30F 28F / 73% ESE 11 G 16 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Wed May 07 2025 31F 29F / 70% E 10 G 15 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Wed May 07 2025 32F 29F / 71% E 9 G 14 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Wed May 07 2025 34F 30F / 68% ESE 7 G 10 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Wed May 07 2025 37F 30F / 69% ESE 7 G 12 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Wed May 07 2025 40F 32F / 65% E 6 G 11 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Wed May 07 2025 42F 34F / 63% NE 4 G 10 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Wed May 07 2025 44F 35F / 61% ENE 4 G 10 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Wed May 07 2025 45F 36F / 51% WNW 4 G 10 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Wed May 07 2025 46F 37F / 77% WNW 5 G 12 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Wed May 07 2025 45F 36F / 75% WNW 8 G 15 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Wed May 07 2025 42F 36F / 77% WNW 8 G 16 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Wed May 07 2025 39F 34F / 100% WNW 10 G 17 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Wed May 07 2025 36F 32F / 93% WNW 11 G 17 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Wed May 07 2025 35F 32F / 76% WNW 10 G 15 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Wed May 07 2025 35F 33F / 62% NW 8 G 13 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Wed May 07 2025 35F 33F / 61% NW 8 G 10 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Thu May 08 2025 35F 33F / 56% W 10 G 14 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Thu May 08 2025 35F 34F / 55% W 12 G 16 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Thu May 08 2025 35F 34F / 53% W 13 G 17 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Thu May 08 2025 34F 34F / 48% W 14 G 18 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Thu May 08 2025 34F 35F / 44% W 15 G 20 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Thu May 08 2025 34F 34F / 42% W 16 G 22 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Thu May 08 2025 34F 33F / 45% WNW 17 G 22 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Thu May 08 2025 34F 33F / 56% WNW 17 G 23 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Thu May 08 2025 35F 34F / 53% WNW 16 G 21 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Thu May 08 2025 37F 36F / 61% WNW 14 G 19 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Thu May 08 2025 39F 36F / 60% WNW 13 G 20 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Thu May 08 2025 44F 37F / 75% NW 11 G 17 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Thu May 08 2025 46F 38F / 75% NW 10 G 16 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0"