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 12Z 09-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 06 AM Sun Mar 09 2025 22F 23F / 35% W 12 G 14 MPH 4500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sun Mar 09 2025 23F 24F / 32% WSW 11 G 13 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sun Mar 09 2025 22F 24F / 32% WSW 12 G 15 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sun Mar 09 2025 24F 25F / 32% WSW 11 G 15 MPH 4500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sun Mar 09 2025 26F 26F / 31% SW 11 G 17 MPH 4600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sun Mar 09 2025 30F 28F / 28% SW 11 G 18 MPH 5000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sun Mar 09 2025 34F 29F / 31% SW 11 G 20 MPH 5700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sun Mar 09 2025 36F 30F / 30% SW 13 G 22 MPH 6100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sun Mar 09 2025 36F 30F / 32% SW 13 G 24 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sun Mar 09 2025 37F 30F / 31% SW 13 G 26 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sun Mar 09 2025 35F 30F / 30% SW 14 G 26 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sun Mar 09 2025 34F 30F / 32% SW 15 G 28 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sun Mar 09 2025 31F 29F / 31% SW 15 G 28 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sun Mar 09 2025 28F 27F / 29% SW 16 G 28 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sun Mar 09 2025 27F 27F / 30% SW 18 G 30 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sun Mar 09 2025 27F 27F / 28% SW 20 G 32 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sun Mar 09 2025 26F 26F / 30% SW 22 G 34 MPH 6900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sun Mar 09 2025 26F 26F / 33% SW 22 G 35 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Mon Mar 10 2025 26F 26F / 37% SSW 23 G 39 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Mon Mar 10 2025 26F 26F / 34% SSW 25 G 40 MPH 6900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Mon Mar 10 2025 26F 26F / 34% SSW 25 G 42 MPH 6800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Mon Mar 10 2025 26F 26F / 33% SW 28 G 46 MPH 6600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Mon Mar 10 2025 25F 25F / 30% SW 27 G 43 MPH 6400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Mon Mar 10 2025 25F 25F / 29% SW 28 G 46 MPH 6200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Mon Mar 10 2025 25F 24F / 32% WSW 26 G 42 MPH 6200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Mon Mar 10 2025 24F 23F / 36% WSW 24 G 38 MPH 6100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Mon Mar 10 2025 24F 23F / 39% WSW 24 G 37 MPH 6100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Mon Mar 10 2025 24F 23F / 35% WSW 23 G 36 MPH 6000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Mon Mar 10 2025 27F 24F / 33% WSW 22 G 36 MPH 6000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Mon Mar 10 2025 30F 25F / 32% WSW 20 G 35 MPH 6000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Mon Mar 10 2025 33F 25F / 35% WSW 19 G 32 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Mon Mar 10 2025 34F 25F / 34% WSW 18 G 30 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Mon Mar 10 2025 35F 26F / 35% WSW 16 G 29 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Mon Mar 10 2025 36F 26F / 39% WSW 14 G 27 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Mon Mar 10 2025 35F 26F / 43% WSW 16 G 27 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Mon Mar 10 2025 35F 26F / 43% WSW 15 G 27 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Mon Mar 10 2025 32F 25F / 51% WSW 15 G 24 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Mon Mar 10 2025 29F 26F / 48% WSW 14 G 25 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Mon Mar 10 2025 28F 25F / 43% SW 17 G 29 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 09 PM Mon Mar 10 2025 27F 25F / 38% SW 21 G 33 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 40 10 PM Mon Mar 10 2025 27F 25F / 36% SW 22 G 35 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 41 11 PM Mon Mar 10 2025 27F 25F / 35% SW 22 G 36 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 42 12 AM Tue Mar 11 2025 27F 26F / 35% SW 21 G 35 MPH 6500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 43 01 AM Tue Mar 11 2025 26F 25F / 40% SW 21 G 34 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 44 02 AM Tue Mar 11 2025 26F 24F / 35% SW 23 G 35 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 45 03 AM Tue Mar 11 2025 26F 24F / 37% SW 21 G 35 MPH 6200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 46 04 AM Tue Mar 11 2025 25F 24F / 40% SW 21 G 33 MPH 5800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 47 05 AM Tue Mar 11 2025 25F 23F / 42% WSW 20 G 31 MPH 5800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 06 AM Tue Mar 11 2025 24F 23F / 41% SW 19 G 29 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"