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 26-Apr-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 Fri Apr 25 2025 39F 34F / 61% SE 9 G 21 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Fri Apr 25 2025 39F 34F / 36% S 13 G 30 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Fri Apr 25 2025 37F 33F / 37% SSW 16 G 30 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Fri Apr 25 2025 36F 32F / 36% SSW 17 G 34 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Fri Apr 25 2025 34F 31F / 42% SSW 14 G 28 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Fri Apr 25 2025 33F 29F / 35% SSW 15 G 33 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Sat Apr 26 2025 31F 28F / 33% SSW 16 G 32 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Sat Apr 26 2025 31F 28F / 37% SSW 18 G 37 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Sat Apr 26 2025 31F 27F / 34% SSW 19 G 36 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sat Apr 26 2025 29F 26F / 36% SSW 20 G 39 MPH 7500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sat Apr 26 2025 29F 26F / 38% SSW 18 G 37 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sat Apr 26 2025 29F 25F / 38% SSW 18 G 34 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sat Apr 26 2025 29F 25F / 37% S 17 G 33 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sat Apr 26 2025 27F 24F / 43% S 17 G 35 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sat Apr 26 2025 28F 25F / 45% SSE 16 G 33 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sat Apr 26 2025 30F 26F / 45% SSE 15 G 33 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sat Apr 26 2025 33F 27F / 51% SSE 15 G 34 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Sat Apr 26 2025 35F 28F / 59% SSE 14 G 33 MPH 7500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Sat Apr 26 2025 38F 29F / 55% SSE 12 G 31 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Sat Apr 26 2025 40F 31F / 52% SSE 11 G 29 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Sat Apr 26 2025 42F 32F / 45% S 12 G 30 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Sat Apr 26 2025 42F 33F / 39% SSE 10 G 27 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Sat Apr 26 2025 43F 34F / 39% S 10 G 25 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Sat Apr 26 2025 43F 34F / 44% S 9 G 23 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Sat Apr 26 2025 40F 34F / 41% S 9 G 20 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Sat Apr 26 2025 37F 33F / 44% SSW 8 G 21 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Sat Apr 26 2025 36F 32F / 44% S 10 G 20 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Sat Apr 26 2025 35F 32F / 39% SSE 8 G 22 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Sat Apr 26 2025 33F 30F / 41% SSE 7 G 16 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Sat Apr 26 2025 31F 29F / 52% SSE 10 G 22 MPH 8700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sun Apr 27 2025 30F 28F / 53% SSE 12 G 24 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sun Apr 27 2025 29F 27F / 55% SE 12 G 26 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sun Apr 27 2025 29F 27F / 52% SE 14 G 28 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sun Apr 27 2025 28F 26F / 52% SE 14 G 30 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sun Apr 27 2025 27F 24F / 57% SE 15 G 33 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sun Apr 27 2025 26F 23F / 61% SE 15 G 31 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Sun Apr 27 2025 26F 22F / 65% SE 14 G 31 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Sun Apr 27 2025 26F 22F / 65% SE 13 G 31 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Sun Apr 27 2025 27F 22F / 75% SE 12 G 30 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Sun Apr 27 2025 29F 22F / 86% SE 11 G 31 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Sun Apr 27 2025 27F 20F / 94% SE 11 G 28 MPH 6800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Sun Apr 27 2025 26F 20F / 81% SSE 9 G 27 MPH 5900 FT 11:1 / 9% 0.08" / 0.9" 0.08" / 0.9" 42 12 PM Sun Apr 27 2025 26F 19F / 89% SSE 14 G 33 MPH 6100 FT 11:1 / 9% 0.06" / 0.7" 0.14" / 1.6" 43 01 PM Sun Apr 27 2025 27F 19F / 84% S 12 G 34 MPH 5900 FT 11:1 / 9% 0.01" / 0.1" 0.15" / 1.7" 44 02 PM Sun Apr 27 2025 28F 20F / 80% SSE 10 G 27 MPH 6000 FT 12:1 / 8% 0.01" / 0.1" 0.16" / 1.8" 45 03 PM Sun Apr 27 2025 26F 20F / 88% S 14 G 30 MPH 6200 FT 9:1 / 11% 0.02" / 0.2" 0.18" / 2.0" 46 04 PM Sun Apr 27 2025 27F 19F / 81% S 14 G 32 MPH 5800 FT 11:1 / 9% 0.05" / 0.6" 0.23" / 2.6" 47 05 PM Sun Apr 27 2025 27F 20F / 71% S 11 G 30 MPH 5900 FT 13:1 / 8% 0.00" / 0.0" 0.23" / 2.6" 48 06 PM Sun Apr 27 2025 27F 19F / 80% SSW 16 G 29 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 2.6"