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 23-Jun-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 Sun Jun 22 2025 41F 32F / 68% W 10 G 19 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Sun Jun 22 2025 37F 31F / 74% W 9 G 16 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Sun Jun 22 2025 34F 29F / 67% W 13 G 19 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Sun Jun 22 2025 31F 29F / 56% W 13 G 19 MPH 7500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Sun Jun 22 2025 31F 29F / 48% WSW 13 G 19 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Sun Jun 22 2025 30F 29F / 46% WSW 12 G 16 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Mon Jun 23 2025 31F 29F / 44% W 13 G 18 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Mon Jun 23 2025 29F 29F / 48% W 14 G 20 MPH 7400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Mon Jun 23 2025 30F 30F / 42% W 14 G 22 MPH 7500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Mon Jun 23 2025 31F 30F / 40% W 15 G 23 MPH 7600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Mon Jun 23 2025 32F 31F / 33% W 14 G 22 MPH 7500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Mon Jun 23 2025 34F 32F / 31% W 15 G 22 MPH 7500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Mon Jun 23 2025 34F 32F / 30% W 14 G 21 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Mon Jun 23 2025 34F 32F / 34% W 14 G 20 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Mon Jun 23 2025 36F 33F / 37% WSW 13 G 19 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Mon Jun 23 2025 37F 34F / 39% WSW 12 G 19 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Mon Jun 23 2025 40F 35F / 38% SW 9 G 14 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Mon Jun 23 2025 45F 37F / 34% S 7 G 13 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Mon Jun 23 2025 48F 39F / 28% SSW 7 G 12 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Mon Jun 23 2025 51F 41F / 27% S 7 G 14 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Mon Jun 23 2025 52F 43F / 24% SSW 8 G 19 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Mon Jun 23 2025 53F 43F / 20% S 7 G 17 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Mon Jun 23 2025 52F 43F / 20% S 7 G 17 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Mon Jun 23 2025 53F 44F / 27% SW 7 G 16 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Mon Jun 23 2025 50F 44F / 26% WSW 8 G 16 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Mon Jun 23 2025 48F 43F / 26% SW 7 G 15 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Mon Jun 23 2025 45F 41F / 29% SW 9 G 14 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Mon Jun 23 2025 42F 41F / 30% S 9 G 16 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Mon Jun 23 2025 42F 41F / 25% S 9 G 14 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Mon Jun 23 2025 41F 40F / 28% S 9 G 15 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Tue Jun 24 2025 41F 40F / 23% SSW 10 G 14 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Tue Jun 24 2025 40F 40F / 24% SSW 11 G 18 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Tue Jun 24 2025 40F 40F / 26% SW 11 G 17 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Tue Jun 24 2025 42F 40F / 25% SSW 11 G 17 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Tue Jun 24 2025 42F 41F / 26% SSW 10 G 19 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Tue Jun 24 2025 42F 40F / 28% S 12 G 20 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Tue Jun 24 2025 41F 40F / 28% SE 15 G 25 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Tue Jun 24 2025 42F 41F / 31% SSE 18 G 28 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Tue Jun 24 2025 43F 43F / 27% SSE 16 G 28 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Tue Jun 24 2025 45F 44F / 34% SSE 14 G 24 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Tue Jun 24 2025 49F 44F / 28% S 11 G 21 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Tue Jun 24 2025 53F 45F / 28% S 9 G 22 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Tue Jun 24 2025 56F 47F / 26% S 10 G 23 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Tue Jun 24 2025 56F 48F / 26% S 10 G 24 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Tue Jun 24 2025 57F 48F / 24% SSW 12 G 26 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Tue Jun 24 2025 57F 49F / 14% SSW 13 G 29 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Tue Jun 24 2025 56F 49F / 19% SW 11 G 25 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Tue Jun 24 2025 56F 49F / 19% SW 11 G 24 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Tue Jun 24 2025 54F 49F / 22% SW 13 G 23 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"