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 06Z 12-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 12 AM Mon May 12 2025 43F 40F / 38% SSW 30 G 57 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Mon May 12 2025 41F 39F / 41% SW 32 G 59 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Mon May 12 2025 41F 38F / 40% SW 31 G 58 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Mon May 12 2025 40F 38F / 36% SW 33 G 61 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Mon May 12 2025 39F 38F / 32% SW 35 G 60 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Mon May 12 2025 39F 37F / 38% SW 33 G 59 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Mon May 12 2025 39F 37F / 39% SW 32 G 59 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Mon May 12 2025 39F 36F / 43% SW 30 G 58 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Mon May 12 2025 40F 36F / 37% SSW 32 G 59 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Mon May 12 2025 41F 37F / 41% SSW 31 G 57 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Mon May 12 2025 42F 38F / 52% SSW 28 G 55 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Mon May 12 2025 45F 38F / 55% SSW 28 G 57 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Mon May 12 2025 49F 40F / 52% S 24 G 55 MPH 10000 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Mon May 12 2025 52F 41F / 43% S 23 G 52 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Mon May 12 2025 52F 41F / 35% S 21 G 49 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Mon May 12 2025 52F 42F / 34% S 19 G 48 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Mon May 12 2025 52F 43F / 33% S 20 G 46 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Mon May 12 2025 51F 43F / 30% S 21 G 47 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Mon May 12 2025 48F 42F / 33% S 21 G 46 MPH 10200 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Mon May 12 2025 45F 41F / 31% S 21 G 46 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Mon May 12 2025 42F 39F / 32% S 22 G 47 MPH 10200 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Mon May 12 2025 41F 37F / 33% S 25 G 51 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Mon May 12 2025 40F 36F / 32% SSW 26 G 54 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Mon May 12 2025 39F 36F / 35% SSW 29 G 56 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Tue May 13 2025 38F 34F / 37% SSW 28 G 55 MPH 8900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Tue May 13 2025 38F 33F / 40% SSW 27 G 54 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Tue May 13 2025 38F 32F / 47% SSW 26 G 53 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Tue May 13 2025 36F 32F / 48% SSW 24 G 46 MPH 7100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Tue May 13 2025 35F 31F / 53% SSW 23 G 46 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Tue May 13 2025 34F 28F / 66% SSW 18 G 36 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Tue May 13 2025 33F 27F / 72% SSW 16 G 30 MPH 7000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Tue May 13 2025 32F 27F / 70% S 15 G 30 MPH 7000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Tue May 13 2025 33F 26F / 68% S 13 G 25 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Tue May 13 2025 32F 26F / 79% S 8 G 23 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Tue May 13 2025 34F 26F / 84% S 7 G 20 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Tue May 13 2025 34F 26F / 90% SSE 7 G 16 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Tue May 13 2025 36F 27F / 85% S 10 G 20 MPH 7000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Tue May 13 2025 36F 29F / 78% SSW 10 G 24 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Tue May 13 2025 36F 29F / 79% SSW 9 G 22 MPH 7900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Tue May 13 2025 35F 28F / 90% SSW 10 G 22 MPH 7800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Tue May 13 2025 35F 26F / 96% SW 11 G 27 MPH 7700 FT 11:1 / 9% 0.02" / 0.2" 0.02" / 0.2" 41 05 PM Tue May 13 2025 34F 27F / 91% WSW 13 G 23 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 42 06 PM Tue May 13 2025 33F 26F / 100% W 14 G 25 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 43 07 PM Tue May 13 2025 31F 24F / 85% W 16 G 26 MPH 7200 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 44 08 PM Tue May 13 2025 29F 23F / 96% W 17 G 26 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 45 09 PM Tue May 13 2025 27F 22F / 97% W 15 G 26 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.02" / 0.2" 46 10 PM Tue May 13 2025 27F 21F / 93% W 16 G 28 MPH 7700 FT 12:1 / 8% 0.03" / 0.4" 0.05" / 0.6" 47 11 PM Tue May 13 2025 25F 21F / 100% W 14 G 24 MPH 6800 FT 12:1 / 8% 0.03" / 0.4" 0.08" / 1.0" 48 12 AM Wed May 14 2025 25F 20F / 94% W 17 G 27 MPH 6800 FT 12:1 / 8% 0.00" / 0.0" 0.08" / 1.0"