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 05-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 11 PM Tue Mar 04 2025 17F 14F / 83% WNW 24 G 37 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 12 AM Wed Mar 05 2025 17F 14F / 83% WNW 25 G 38 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 01 AM Wed Mar 05 2025 17F 13F / 86% WNW 24 G 37 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 02 AM Wed Mar 05 2025 17F 13F / 90% WNW 22 G 33 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 03 AM Wed Mar 05 2025 17F 14F / 84% WNW 19 G 29 MPH 5600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 04 AM Wed Mar 05 2025 17F 14F / 81% W 18 G 28 MPH 5500 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 05 AM Wed Mar 05 2025 17F 14F / 80% W 17 G 26 MPH 5400 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 06 AM Wed Mar 05 2025 18F 15F / 72% W 16 G 24 MPH 5300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 07 AM Wed Mar 05 2025 18F 15F / 72% W 16 G 24 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 08 AM Wed Mar 05 2025 19F 16F / 68% WSW 16 G 25 MPH 5200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 10 09 AM Wed Mar 05 2025 20F 17F / 69% WSW 16 G 25 MPH 5200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 11 10 AM Wed Mar 05 2025 25F 19F / 72% WSW 15 G 25 MPH 5400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 11 AM Wed Mar 05 2025 26F 19F / 73% SW 15 G 25 MPH 5700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 12 PM Wed Mar 05 2025 27F 20F / 72% SSW 15 G 27 MPH 6100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 01 PM Wed Mar 05 2025 29F 21F / 73% SSW 15 G 31 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 02 PM Wed Mar 05 2025 29F 21F / 76% S 16 G 32 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 03 PM Wed Mar 05 2025 27F 21F / 84% S 15 G 32 MPH 6900 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 17 04 PM Wed Mar 05 2025 25F 20F / 92% S 14 G 29 MPH 7000 FT 9:1 / 11% 0.02" / 0.2" 0.03" / 0.3" 18 05 PM Wed Mar 05 2025 26F 20F / 93% S 13 G 30 MPH 7000 FT 9:1 / 11% 0.05" / 0.4" 0.08" / 0.7" 19 06 PM Wed Mar 05 2025 26F 20F / 97% S 15 G 33 MPH 7100 FT 8:1 / 12% 0.04" / 0.3" 0.12" / 1.0" 20 07 PM Wed Mar 05 2025 26F 20F / 99% S 19 G 39 MPH 7300 FT 8:1 / 12% 0.07" / 0.6" 0.19" / 1.6" 21 08 PM Wed Mar 05 2025 27F 21F / 100% S 21 G 42 MPH 7400 FT 10:1 / 10% 0.11" / 1.1" 0.30" / 2.7" 22 09 PM Wed Mar 05 2025 28F 21F / 97% S 22 G 45 MPH 7300 FT 9:1 / 11% 0.11" / 1.0" 0.41" / 3.7" 23 10 PM Wed Mar 05 2025 28F 21F / 96% S 24 G 48 MPH 7100 FT 9:1 / 11% 0.09" / 0.8" 0.50" / 4.5" 24 11 PM Wed Mar 05 2025 27F 20F / 95% S 24 G 50 MPH 7100 FT 8:1 / 12% 0.08" / 0.6" 0.58" / 5.1" 25 12 AM Thu Mar 06 2025 27F 20F / 97% S 26 G 52 MPH 7000 FT 8:1 / 12% 0.08" / 0.6" 0.66" / 5.7" 26 01 AM Thu Mar 06 2025 27F 19F / 98% S 25 G 54 MPH 6800 FT 8:1 / 12% 0.10" / 0.8" 0.76" / 6.5" 27 02 AM Thu Mar 06 2025 27F 20F / 96% S 24 G 48 MPH 6800 FT 8:1 / 12% 0.10" / 0.8" 0.86" / 7.3" 28 03 AM Thu Mar 06 2025 26F 19F / 96% S 24 G 49 MPH 6500 FT 7:1 / 14% 0.12" / 0.8" 0.98" / 8.1" 29 04 AM Thu Mar 06 2025 26F 19F / 95% S 27 G 53 MPH 6400 FT 7:1 / 14% 0.14" / 1.0" 1.12" / 9.1" 30 05 AM Thu Mar 06 2025 26F 19F / 95% S 19 G 38 MPH 6300 FT 8:1 / 12% 0.10" / 0.8" 1.22" / 9.9" 31 06 AM Thu Mar 06 2025 25F 19F / 96% S 16 G 35 MPH 6500 FT 10:1 / 10% 0.09" / 0.9" 1.31" / 10.8" 32 07 AM Thu Mar 06 2025 25F 17F / 98% S 16 G 33 MPH 6500 FT 12:1 / 8% 0.06" / 0.7" 1.37" / 11.5" 33 08 AM Thu Mar 06 2025 25F 17F / 100% S 15 G 34 MPH 6300 FT 11:1 / 9% 0.03" / 0.3" 1.40" / 11.8" 34 09 AM Thu Mar 06 2025 25F 16F / 95% S 14 G 31 MPH 6200 FT 10:1 / 10% 0.07" / 0.7" 1.47" / 12.5" 35 10 AM Thu Mar 06 2025 24F 16F / 95% SSE 13 G 32 MPH 6000 FT 13:1 / 8% 0.05" / 0.6" 1.52" / 13.1" 36 11 AM Thu Mar 06 2025 27F 16F / 89% SSE 13 G 32 MPH 5900 FT 13:1 / 8% 0.06" / 0.8" 1.58" / 13.9" 37 12 PM Thu Mar 06 2025 24F 14F / 85% S 18 G 45 MPH 5500 FT 14:1 / 7% 0.02" / 0.3" 1.60" / 14.2" 38 01 PM Thu Mar 06 2025 24F 14F / 92% S 17 G 40 MPH 5300 FT 13:1 / 8% 0.00" / 0.0" 1.60" / 14.2" 39 02 PM Thu Mar 06 2025 24F 15F / 84% S 16 G 34 MPH 5600 FT 12:1 / 8% 0.00" / 0.0" 1.60" / 14.2" 40 03 PM Thu Mar 06 2025 22F 14F / 100% S 19 G 36 MPH 5700 FT 12:1 / 8% 0.00" / 0.0" 1.60" / 14.2" 41 04 PM Thu Mar 06 2025 22F 14F / 91% SSW 15 G 27 MPH 5600 FT 15:1 / 7% 0.03" / 0.4" 1.63" / 14.6" 42 05 PM Thu Mar 06 2025 24F 13F / 94% W 20 G 32 MPH 5600 FT 13:1 / 8% 0.13" / 1.7" 1.76" / 16.3" 43 06 PM Thu Mar 06 2025 21F 12F / 95% W 20 G 33 MPH 5600 FT 13:1 / 8% 0.09" / 1.2" 1.85" / 17.5" 44 07 PM Thu Mar 06 2025 19F 12F / 94% W 22 G 36 MPH 5600 FT 13:1 / 8% 0.06" / 0.8" 1.91" / 18.3" 45 08 PM Thu Mar 06 2025 18F 12F / 93% W 22 G 35 MPH 5600 FT 13:1 / 8% 0.02" / 0.3" 1.93" / 18.6" 46 09 PM Thu Mar 06 2025 18F 11F / 96% W 17 G 28 MPH 5500 FT 13:1 / 8% 0.00" / 0.0" 1.93" / 18.6" 47 10 PM Thu Mar 06 2025 17F 12F / 94% WSW 15 G 25 MPH 5300 FT 15:1 / 7% 0.01" / 0.2" 1.94" / 18.8" 48 11 PM Thu Mar 06 2025 17F 12F / 92% SW 15 G 26 MPH 5200 FT 15:1 / 7% 0.02" / 0.3" 1.96" / 19.1"