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 27-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 PM Wed Mar 26 2025 42F 38F / 39% SW 12 G 22 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Wed Mar 26 2025 41F 37F / 48% SSW 8 G 16 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Wed Mar 26 2025 40F 37F / 38% SW 15 G 25 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Wed Mar 26 2025 39F 36F / 39% SSW 15 G 25 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Wed Mar 26 2025 39F 36F / 25% SSW 15 G 27 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Wed Mar 26 2025 38F 36F / 31% S 14 G 26 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Thu Mar 27 2025 37F 35F / 41% S 19 G 36 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Thu Mar 27 2025 36F 34F / 37% SSW 23 G 42 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Thu Mar 27 2025 36F 34F / 29% SW 25 G 44 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Thu Mar 27 2025 35F 34F / 33% SW 23 G 40 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Thu Mar 27 2025 35F 34F / 35% SW 22 G 40 MPH 9800 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Thu Mar 27 2025 35F 34F / 36% SW 22 G 37 MPH 9700 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Thu Mar 27 2025 34F 33F / 36% SW 21 G 35 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Thu Mar 27 2025 34F 33F / 38% SW 22 G 36 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Thu Mar 27 2025 34F 32F / 40% SW 20 G 35 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Thu Mar 27 2025 34F 32F / 40% SW 22 G 39 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Thu Mar 27 2025 36F 33F / 38% SSW 21 G 40 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Thu Mar 27 2025 39F 34F / 39% SW 22 G 43 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Thu Mar 27 2025 41F 34F / 40% SSW 17 G 37 MPH 9300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Thu Mar 27 2025 44F 35F / 40% SSW 18 G 40 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Thu Mar 27 2025 46F 35F / 41% SSW 19 G 39 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Thu Mar 27 2025 46F 36F / 36% SSW 19 G 42 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Thu Mar 27 2025 45F 35F / 38% SSW 21 G 44 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Thu Mar 27 2025 44F 35F / 37% SSW 22 G 46 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Thu Mar 27 2025 39F 35F / 40% SSW 23 G 46 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Thu Mar 27 2025 38F 34F / 40% SSW 22 G 46 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Thu Mar 27 2025 36F 34F / 39% SSW 23 G 46 MPH 9500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Thu Mar 27 2025 37F 33F / 42% SSW 24 G 46 MPH 9600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Thu Mar 27 2025 35F 32F / 40% SSW 25 G 47 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Thu Mar 27 2025 35F 31F / 47% SSW 25 G 47 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Fri Mar 28 2025 34F 31F / 50% SSW 26 G 48 MPH 9400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Fri Mar 28 2025 33F 29F / 62% WSW 24 G 44 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Fri Mar 28 2025 31F 26F / 85% W 17 G 31 MPH 8900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Fri Mar 28 2025 30F 25F / 86% WNW 15 G 24 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Fri Mar 28 2025 30F 25F / 73% SE 12 G 23 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Fri Mar 28 2025 29F 25F / 65% SSW 10 G 14 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Fri Mar 28 2025 29F 25F / 68% S 10 G 16 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Fri Mar 28 2025 28F 23F / 80% S 13 G 22 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Fri Mar 28 2025 27F 24F / 79% SSE 13 G 23 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Fri Mar 28 2025 27F 24F / 69% S 15 G 28 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Fri Mar 28 2025 31F 26F / 63% S 17 G 33 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Fri Mar 28 2025 32F 26F / 67% S 19 G 38 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Fri Mar 28 2025 33F 27F / 68% S 17 G 34 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Fri Mar 28 2025 34F 27F / 76% S 16 G 34 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Fri Mar 28 2025 34F 27F / 79% S 14 G 28 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Fri Mar 28 2025 33F 26F / 92% SW 13 G 24 MPH 7100 FT 10:1 / 10% 0.01" / 0.1" 0.01" / 0.1" 46 04 PM Fri Mar 28 2025 33F 26F / 95% SW 13 G 25 MPH 6800 FT 9:1 / 11% 0.02" / 0.2" 0.03" / 0.3" 47 05 PM Fri Mar 28 2025 30F 24F / 85% WSW 11 G 20 MPH 7000 FT 11:1 / 9% 0.04" / 0.4" 0.07" / 0.7" 48 06 PM Fri Mar 28 2025 29F 23F / 88% WSW 14 G 24 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.07" / 0.7"