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 22-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 12 PM Sun Jun 22 2025 36F 27F / 74% W 8 G 16 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Sun Jun 22 2025 38F 30F / 77% WSW 6 G 13 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Sun Jun 22 2025 39F 30F / 78% WSW 8 G 18 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Sun Jun 22 2025 41F 31F / 73% WSW 10 G 20 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Sun Jun 22 2025 40F 31F / 75% WSW 10 G 20 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Sun Jun 22 2025 40F 31F / 66% W 13 G 23 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Sun Jun 22 2025 38F 31F / 63% W 14 G 22 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Sun Jun 22 2025 36F 30F / 60% W 14 G 23 MPH 7600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Sun Jun 22 2025 33F 29F / 50% W 15 G 22 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Sun Jun 22 2025 32F 29F / 46% W 16 G 21 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Sun Jun 22 2025 30F 29F / 48% W 13 G 17 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Sun Jun 22 2025 31F 29F / 46% W 13 G 17 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Mon Jun 23 2025 31F 29F / 41% W 13 G 17 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Mon Jun 23 2025 30F 29F / 45% W 15 G 21 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Mon Jun 23 2025 30F 30F / 44% W 15 G 20 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Mon Jun 23 2025 31F 30F / 43% W 14 G 19 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Mon Jun 23 2025 32F 31F / 40% W 13 G 18 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Mon Jun 23 2025 33F 31F / 37% W 11 G 16 MPH 8000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Mon Jun 23 2025 32F 32F / 34% WSW 10 G 14 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Mon Jun 23 2025 34F 32F / 36% SW 11 G 14 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Mon Jun 23 2025 35F 33F / 39% SW 11 G 17 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Mon Jun 23 2025 36F 34F / 36% SW 12 G 18 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Mon Jun 23 2025 40F 35F / 30% SW 10 G 18 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Mon Jun 23 2025 45F 38F / 26% SSW 8 G 16 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Mon Jun 23 2025 49F 40F / 24% SW 7 G 15 MPH 8600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Mon Jun 23 2025 50F 41F / 25% S 8 G 17 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Mon Jun 23 2025 52F 43F / 26% S 6 G 17 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Mon Jun 23 2025 53F 43F / 21% S 7 G 17 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Mon Jun 23 2025 53F 43F / 24% SSW 6 G 15 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Mon Jun 23 2025 52F 44F / 27% SW 6 G 15 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Mon Jun 23 2025 50F 44F / 27% WSW 7 G 15 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Mon Jun 23 2025 48F 42F / 28% WSW 8 G 15 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Mon Jun 23 2025 44F 41F / 29% SW 9 G 16 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Mon Jun 23 2025 42F 40F / 28% S 10 G 17 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Mon Jun 23 2025 42F 40F / 24% S 9 G 16 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Mon Jun 23 2025 41F 40F / 31% SW 10 G 14 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Tue Jun 24 2025 39F 39F / 30% SW 9 G 15 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Tue Jun 24 2025 41F 40F / 34% SSE 11 G 18 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Tue Jun 24 2025 40F 40F / 34% WSW 11 G 16 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Tue Jun 24 2025 41F 40F / 32% SSE 10 G 18 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Tue Jun 24 2025 41F 41F / 30% SSE 11 G 16 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Tue Jun 24 2025 42F 42F / 24% SSE 14 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Tue Jun 24 2025 42F 41F / 18% SSE 18 G 28 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Tue Jun 24 2025 42F 41F / 36% SSE 16 G 26 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Tue Jun 24 2025 43F 42F / 26% SSE 16 G 27 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Tue Jun 24 2025 44F 43F / 28% SSW 12 G 21 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Tue Jun 24 2025 47F 43F / 28% S 8 G 17 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Tue Jun 24 2025 51F 43F / 23% S 9 G 18 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Tue Jun 24 2025 54F 46F / 27% SSW 7 G 17 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0"