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 13-May-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 Mon May 12 2025 50F 44F / 25% S 24 G 51 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Mon May 12 2025 47F 43F / 32% S 25 G 54 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Mon May 12 2025 44F 41F / 31% S 26 G 53 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Mon May 12 2025 43F 39F / 31% S 27 G 55 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Mon May 12 2025 41F 38F / 36% SSW 28 G 55 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Mon May 12 2025 40F 35F / 38% SSW 27 G 55 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Tue May 13 2025 38F 33F / 42% SW 29 G 57 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Tue May 13 2025 38F 33F / 39% SSW 29 G 59 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Tue May 13 2025 38F 32F / 41% SSW 30 G 58 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Tue May 13 2025 36F 31F / 47% SSW 25 G 50 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Tue May 13 2025 35F 30F / 49% SSW 25 G 51 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Tue May 13 2025 35F 29F / 58% S 25 G 50 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Tue May 13 2025 35F 28F / 62% S 23 G 46 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Tue May 13 2025 34F 28F / 66% S 20 G 45 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Tue May 13 2025 35F 27F / 76% S 19 G 42 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Tue May 13 2025 34F 26F / 86% S 17 G 40 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Tue May 13 2025 34F 25F / 77% S 19 G 46 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Tue May 13 2025 35F 25F / 83% S 19 G 44 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Tue May 13 2025 36F 26F / 80% S 14 G 36 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Tue May 13 2025 37F 27F / 76% S 15 G 38 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Tue May 13 2025 33F 24F / 96% SW 10 G 25 MPH 7200 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Tue May 13 2025 31F 23F / 95% SW 11 G 26 MPH 7100 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Tue May 13 2025 31F 23F / 99% SW 11 G 25 MPH 7100 FT 11:1 / 9% 0.01" / 0.1" 0.01" / 0.1" 23 05 PM Tue May 13 2025 30F 23F / 94% SW 14 G 29 MPH 7200 FT 8:1 / 12% 0.01" / 0.1" 0.02" / 0.2" 24 06 PM Tue May 13 2025 29F 21F / 93% WSW 13 G 25 MPH 7500 FT 8:1 / 12% 0.01" / 0.1" 0.03" / 0.3" 25 07 PM Tue May 13 2025 28F 21F / 93% W 10 G 21 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.03" / 0.3" 26 08 PM Tue May 13 2025 27F 20F / 91% W 14 G 24 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.03" / 0.3" 27 09 PM Tue May 13 2025 26F 20F / 99% WNW 16 G 23 MPH 6800 FT 12:1 / 8% 0.01" / 0.1" 0.04" / 0.4" 28 10 PM Tue May 13 2025 25F 19F / 93% WNW 16 G 25 MPH 7200 FT 11:1 / 9% 0.01" / 0.1" 0.05" / 0.5" 29 11 PM Tue May 13 2025 25F 19F / 85% WNW 14 G 21 MPH 7100 FT 12:1 / 8% 0.00" / 0.0" 0.05" / 0.5" 30 12 AM Wed May 14 2025 24F 19F / 88% WNW 12 G 17 MPH 7200 FT 12:1 / 8% 0.00" / 0.0" 0.05" / 0.5" 31 01 AM Wed May 14 2025 24F 18F / 96% WNW 11 G 16 MPH 7000 FT 14:1 / 7% 0.00" / 0.0" 0.05" / 0.5" 32 02 AM Wed May 14 2025 23F 18F / 96% W 12 G 19 MPH 7200 FT 14:1 / 7% 0.00" / 0.0" 0.05" / 0.5" 33 03 AM Wed May 14 2025 23F 17F / 98% WNW 12 G 17 MPH 7200 FT 12:1 / 8% 0.01" / 0.1" 0.06" / 0.6" 34 04 AM Wed May 14 2025 23F 17F / 96% WNW 13 G 20 MPH 7000 FT 11:1 / 9% 0.02" / 0.2" 0.08" / 0.8" 35 05 AM Wed May 14 2025 22F 16F / 93% W 13 G 21 MPH 6800 FT 12:1 / 8% 0.00" / 0.0" 0.08" / 0.8" 36 06 AM Wed May 14 2025 22F 16F / 93% W 14 G 23 MPH 6900 FT 11:1 / 9% 0.00" / 0.0" 0.08" / 0.8" 37 07 AM Wed May 14 2025 23F 18F / 92% W 15 G 23 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.08" / 0.8" 38 08 AM Wed May 14 2025 23F 17F / 94% W 14 G 24 MPH 6800 FT 11:1 / 9% 0.02" / 0.2" 0.10" / 1.0" 39 09 AM Wed May 14 2025 23F 17F / 92% W 16 G 25 MPH 6600 FT 12:1 / 8% 0.01" / 0.1" 0.11" / 1.1" 40 10 AM Wed May 14 2025 23F 18F / 94% W 13 G 21 MPH 6500 FT 12:1 / 8% 0.01" / 0.1" 0.12" / 1.2" 41 11 AM Wed May 14 2025 26F 19F / 95% W 14 G 20 MPH 6800 FT 11:1 / 9% 0.02" / 0.2" 0.14" / 1.4" 42 12 PM Wed May 14 2025 27F 20F / 93% W 16 G 27 MPH 6700 FT 11:1 / 9% 0.05" / 0.6" 0.19" / 2.0" 43 01 PM Wed May 14 2025 29F 20F / 92% W 19 G 32 MPH 7100 FT 10:1 / 10% 0.03" / 0.3" 0.22" / 2.3" 44 02 PM Wed May 14 2025 30F 21F / 96% W 20 G 31 MPH 7200 FT 10:1 / 10% 0.03" / 0.3" 0.25" / 2.6" 45 03 PM Wed May 14 2025 30F 22F / 98% WNW 21 G 33 MPH 7300 FT 10:1 / 10% 0.12" / 1.2" 0.37" / 3.8" 46 04 PM Wed May 14 2025 30F 21F / 96% WNW 20 G 33 MPH 7600 FT 9:1 / 11% 0.02" / 0.2" 0.39" / 4.0" 47 05 PM Wed May 14 2025 30F 22F / 100% WNW 20 G 31 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.39" / 4.0" 48 06 PM Wed May 14 2025 27F 21F / 96% WNW 26 G 38 MPH 7900 FT 8:1 / 12% 0.08" / 0.6" 0.47" / 4.6"