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 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 05 PM Sat Mar 08 2025 25F 23F / 55% NNW 13 G 21 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Sat Mar 08 2025 23F 21F / 59% NNW 13 G 19 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 07 PM Sat Mar 08 2025 20F 20F / 55% NNW 13 G 17 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 08 PM Sat Mar 08 2025 20F 21F / 50% NNW 12 G 17 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 09 PM Sat Mar 08 2025 20F 21F / 51% SW 12 G 15 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 10 PM Sat Mar 08 2025 18F 20F / 51% SSW 10 G 12 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 11 PM Sat Mar 08 2025 19F 21F / 48% WNW 11 G 14 MPH 5300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 12 AM Sun Mar 09 2025 20F 22F / 46% WNW 13 G 18 MPH 5000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 01 AM Sun Mar 09 2025 21F 23F / 39% WNW 14 G 19 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sun Mar 09 2025 21F 23F / 40% WNW 13 G 18 MPH 4800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sun Mar 09 2025 22F 23F / 37% W 12 G 15 MPH 4800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sun Mar 09 2025 23F 24F / 35% W 12 G 14 MPH 4700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sun Mar 09 2025 23F 24F / 34% W 13 G 16 MPH 5000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sun Mar 09 2025 23F 24F / 33% W 13 G 16 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sun Mar 09 2025 22F 24F / 33% WSW 13 G 17 MPH 4900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sun Mar 09 2025 23F 24F / 33% WSW 14 G 19 MPH 4900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sun Mar 09 2025 26F 26F / 34% WSW 14 G 21 MPH 4800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Sun Mar 09 2025 31F 28F / 34% SW 13 G 21 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Sun Mar 09 2025 34F 29F / 35% SW 12 G 21 MPH 5800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Sun Mar 09 2025 36F 30F / 33% SW 11 G 21 MPH 6200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Sun Mar 09 2025 37F 30F / 34% SW 12 G 23 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Sun Mar 09 2025 37F 30F / 34% SW 12 G 23 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Sun Mar 09 2025 35F 29F / 36% SW 13 G 25 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Sun Mar 09 2025 33F 29F / 34% SW 14 G 25 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Sun Mar 09 2025 31F 28F / 37% SW 15 G 26 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Sun Mar 09 2025 28F 27F / 34% SW 16 G 28 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Sun Mar 09 2025 26F 26F / 32% SW 19 G 31 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Sun Mar 09 2025 26F 26F / 30% SW 20 G 32 MPH 7100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Sun Mar 09 2025 26F 26F / 29% SW 22 G 34 MPH 6900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Sun Mar 09 2025 26F 26F / 33% SW 21 G 34 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Mon Mar 10 2025 26F 26F / 37% SSW 22 G 37 MPH 7100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Mon Mar 10 2025 26F 25F / 38% SSW 23 G 40 MPH 6900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Mon Mar 10 2025 26F 26F / 42% SSW 26 G 43 MPH 6700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Mon Mar 10 2025 26F 26F / 37% SW 27 G 45 MPH 6600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Mon Mar 10 2025 25F 25F / 33% SW 29 G 46 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Mon Mar 10 2025 25F 25F / 31% SW 29 G 46 MPH 6200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Mon Mar 10 2025 24F 25F / 32% WSW 27 G 43 MPH 6200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Mon Mar 10 2025 24F 25F / 32% WSW 27 G 42 MPH 6100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Mon Mar 10 2025 24F 24F / 34% WSW 25 G 41 MPH 6000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Mon Mar 10 2025 24F 24F / 37% WSW 24 G 37 MPH 5900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Mon Mar 10 2025 27F 25F / 33% WSW 22 G 36 MPH 6000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Mon Mar 10 2025 32F 26F / 36% WSW 19 G 33 MPH 6100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Mon Mar 10 2025 33F 27F / 35% WSW 17 G 31 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Mon Mar 10 2025 35F 27F / 35% WSW 16 G 28 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Mon Mar 10 2025 36F 27F / 34% WSW 16 G 28 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Mon Mar 10 2025 37F 28F / 36% WSW 14 G 28 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Mon Mar 10 2025 36F 28F / 40% WSW 15 G 27 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Mon Mar 10 2025 36F 29F / 39% WSW 16 G 29 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Mon Mar 10 2025 34F 28F / 42% WSW 16 G 29 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"