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 12-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 Tue Mar 11 2025 33F 26F / 51% SW 16 G 30 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Tue Mar 11 2025 29F 24F / 48% SW 13 G 24 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Tue Mar 11 2025 27F 22F / 49% SW 15 G 26 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Tue Mar 11 2025 25F 22F / 53% SSW 16 G 27 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Tue Mar 11 2025 24F 21F / 51% SSW 16 G 31 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Tue Mar 11 2025 24F 21F / 55% SSW 18 G 35 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Wed Mar 12 2025 24F 21F / 55% SSW 20 G 37 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Wed Mar 12 2025 23F 20F / 56% SSW 20 G 37 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Wed Mar 12 2025 22F 20F / 56% SSW 20 G 34 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Wed Mar 12 2025 20F 19F / 57% SW 19 G 29 MPH 5800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Wed Mar 12 2025 21F 19F / 57% SSW 16 G 25 MPH 5600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Wed Mar 12 2025 21F 19F / 64% S 15 G 25 MPH 5900 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Wed Mar 12 2025 20F 19F / 68% SSE 14 G 22 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Wed Mar 12 2025 21F 19F / 67% SSE 10 G 17 MPH 6200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Wed Mar 12 2025 21F 18F / 74% SSE 11 G 18 MPH 6200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Wed Mar 12 2025 22F 19F / 77% S 13 G 22 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Wed Mar 12 2025 25F 20F / 80% SSE 16 G 31 MPH 6300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Wed Mar 12 2025 26F 21F / 79% SSE 16 G 34 MPH 6500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Wed Mar 12 2025 28F 23F / 73% SSE 17 G 34 MPH 6700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Wed Mar 12 2025 29F 24F / 65% S 16 G 31 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Wed Mar 12 2025 30F 24F / 71% S 17 G 34 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Wed Mar 12 2025 31F 25F / 64% S 16 G 35 MPH 7300 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Wed Mar 12 2025 30F 24F / 72% S 17 G 38 MPH 7500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Wed Mar 12 2025 30F 24F / 70% S 18 G 41 MPH 7500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Wed Mar 12 2025 30F 24F / 70% S 21 G 42 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Wed Mar 12 2025 27F 23F / 79% S 22 G 48 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Wed Mar 12 2025 25F 22F / 71% S 25 G 54 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Wed Mar 12 2025 27F 20F / 78% S 27 G 54 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Wed Mar 12 2025 25F 21F / 77% SSW 27 G 53 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Wed Mar 12 2025 26F 19F / 90% S 25 G 49 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Thu Mar 13 2025 27F 20F / 96% S 25 G 51 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Thu Mar 13 2025 27F 19F / 98% S 26 G 52 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Thu Mar 13 2025 27F 19F / 99% S 28 G 55 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Thu Mar 13 2025 26F 19F / 95% S 27 G 53 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Thu Mar 13 2025 26F 18F / 97% S 24 G 51 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Thu Mar 13 2025 26F 18F / 100% S 23 G 47 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Thu Mar 13 2025 25F 18F / 97% S 19 G 41 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Thu Mar 13 2025 27F 19F / 92% S 19 G 42 MPH 6900 FT 10:1 / 10% 0.01" / 0.1" 0.01" / 0.1" 38 08 AM Thu Mar 13 2025 26F 19F / 97% SSE 16 G 38 MPH 6700 FT 10:1 / 10% 0.06" / 0.6" 0.07" / 0.7" 39 09 AM Thu Mar 13 2025 27F 19F / 96% S 21 G 44 MPH 6700 FT 10:1 / 10% 0.04" / 0.4" 0.11" / 1.1" 40 10 AM Thu Mar 13 2025 26F 19F / 94% SSE 20 G 42 MPH 6900 FT 10:1 / 10% 0.09" / 0.9" 0.20" / 2.0" 41 11 AM Thu Mar 13 2025 26F 19F / 94% SSE 19 G 42 MPH 6900 FT 10:1 / 10% 0.06" / 0.6" 0.26" / 2.6" 42 12 PM Thu Mar 13 2025 27F 20F / 95% SSE 19 G 43 MPH 6900 FT 10:1 / 10% 0.10" / 1.0" 0.36" / 3.6" 43 01 PM Thu Mar 13 2025 28F 21F / 93% SSE 16 G 39 MPH 7100 FT 11:1 / 9% 0.05" / 0.6" 0.41" / 4.2" 44 02 PM Thu Mar 13 2025 29F 21F / 91% SSE 15 G 38 MPH 7200 FT 10:1 / 10% 0.07" / 0.7" 0.48" / 4.9" 45 03 PM Thu Mar 13 2025 28F 22F / 86% S 15 G 37 MPH 7200 FT 10:1 / 10% 0.03" / 0.3" 0.51" / 5.2" 46 04 PM Thu Mar 13 2025 31F 22F / 95% SSW 18 G 40 MPH 7100 FT 11:1 / 9% 0.08" / 0.9" 0.59" / 6.1" 47 05 PM Thu Mar 13 2025 29F 20F / 96% S 17 G 40 MPH 6800 FT 11:1 / 9% 0.16" / 1.8" 0.75" / 7.9" 48 06 PM Thu Mar 13 2025 27F 18F / 91% SSW 20 G 40 MPH 6900 FT 10:1 / 10% 0.21" / 2.1" 0.96" / 10.0"