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 25-Mar-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 Mar 25 2025 39F 34F / 41% NW 8 G 13 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Tue Mar 25 2025 41F 34F / 65% N 6 G 8 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Tue Mar 25 2025 43F 35F / 54% NW 5 G 8 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Tue Mar 25 2025 43F 36F / 52% N 5 G 8 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Tue Mar 25 2025 42F 37F / 39% SSE 4 G 7 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Tue Mar 25 2025 40F 37F / 29% ESE 4 G 9 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Tue Mar 25 2025 38F 37F / 26% ESE 6 G 10 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Tue Mar 25 2025 37F 37F / 23% SE 8 G 11 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Tue Mar 25 2025 36F 36F / 17% SE 9 G 14 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Tue Mar 25 2025 37F 36F / 13% SE 12 G 18 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Tue Mar 25 2025 36F 36F / 19% SE 13 G 22 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Tue Mar 25 2025 36F 35F / 41% SE 16 G 26 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Wed Mar 26 2025 36F 36F / 49% SSE 14 G 25 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Wed Mar 26 2025 37F 36F / 46% SSE 14 G 27 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Wed Mar 26 2025 36F 35F / 48% S 15 G 24 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Wed Mar 26 2025 36F 35F / 47% S 15 G 24 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Wed Mar 26 2025 36F 35F / 47% S 15 G 24 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Wed Mar 26 2025 36F 35F / 47% S 15 G 25 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Wed Mar 26 2025 36F 35F / 43% SSW 16 G 26 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Wed Mar 26 2025 35F 34F / 39% SSW 16 G 25 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Wed Mar 26 2025 36F 34F / 40% SSW 16 G 27 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Wed Mar 26 2025 36F 34F / 41% SSW 16 G 27 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Wed Mar 26 2025 37F 35F / 44% SSW 15 G 26 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Wed Mar 26 2025 40F 36F / 48% SSW 14 G 28 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Wed Mar 26 2025 44F 37F / 47% SSW 14 G 28 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Wed Mar 26 2025 46F 38F / 43% SW 14 G 27 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Wed Mar 26 2025 47F 38F / 36% WSW 14 G 25 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Wed Mar 26 2025 48F 38F / 33% WSW 15 G 26 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Wed Mar 26 2025 48F 39F / 36% WSW 14 G 25 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Wed Mar 26 2025 46F 39F / 39% WSW 14 G 25 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Wed Mar 26 2025 42F 38F / 33% SW 12 G 22 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Wed Mar 26 2025 40F 38F / 33% SW 12 G 21 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Wed Mar 26 2025 39F 37F / 24% SW 13 G 23 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Wed Mar 26 2025 39F 36F / 28% SW 16 G 26 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Wed Mar 26 2025 38F 36F / 27% SW 14 G 23 MPH 10000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Wed Mar 26 2025 38F 36F / 28% SSW 16 G 26 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Thu Mar 27 2025 36F 34F / 37% S 15 G 26 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Thu Mar 27 2025 37F 36F / 36% SSW 19 G 33 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Thu Mar 27 2025 37F 36F / 37% SSW 19 G 31 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Thu Mar 27 2025 36F 35F / 35% SSW 20 G 35 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Thu Mar 27 2025 36F 35F / 34% SSW 21 G 38 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Thu Mar 27 2025 35F 34F / 32% SSW 22 G 40 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Thu Mar 27 2025 36F 34F / 29% SW 21 G 38 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Thu Mar 27 2025 35F 33F / 38% SSW 21 G 35 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Thu Mar 27 2025 34F 33F / 36% SSW 20 G 36 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Thu Mar 27 2025 34F 33F / 41% SSW 19 G 37 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Thu Mar 27 2025 36F 33F / 37% SSW 20 G 39 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Thu Mar 27 2025 39F 33F / 39% S 19 G 39 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Thu Mar 27 2025 42F 34F / 41% S 18 G 38 MPH 9100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0"