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 18Z 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 AM Wed Mar 05 2025 27F 20F / 78% SW 11 G 18 MPH 5800 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Wed Mar 05 2025 27F 20F / 79% SW 13 G 22 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Wed Mar 05 2025 27F 21F / 76% SSW 13 G 26 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Wed Mar 05 2025 28F 21F / 78% SSW 15 G 31 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Wed Mar 05 2025 27F 20F / 87% S 15 G 31 MPH 6600 FT 9:1 / 11% 0.01" / 0.1" 0.01" / 0.1" 5 04 PM Wed Mar 05 2025 27F 20F / 93% S 17 G 34 MPH 6800 FT 8:1 / 12% 0.01" / 0.1" 0.02" / 0.2" 6 05 PM Wed Mar 05 2025 26F 19F / 95% S 18 G 39 MPH 6900 FT 8:1 / 12% 0.01" / 0.1" 0.03" / 0.3" 7 06 PM Wed Mar 05 2025 26F 19F / 100% SSE 19 G 38 MPH 7000 FT 8:1 / 12% 0.03" / 0.2" 0.06" / 0.5" 8 07 PM Wed Mar 05 2025 26F 19F / 100% SSE 20 G 40 MPH 7000 FT 7:1 / 14% 0.05" / 0.4" 0.11" / 0.9" 9 08 PM Wed Mar 05 2025 26F 20F / 100% SSE 17 G 39 MPH 7100 FT 7:1 / 14% 0.07" / 0.5" 0.18" / 1.4" 10 09 PM Wed Mar 05 2025 26F 20F / 100% SSE 17 G 35 MPH 7300 FT 9:1 / 11% 0.07" / 0.6" 0.25" / 2.0" 11 10 PM Wed Mar 05 2025 26F 20F / 98% SSE 19 G 39 MPH 7300 FT 9:1 / 11% 0.09" / 0.8" 0.34" / 2.8" 12 11 PM Wed Mar 05 2025 27F 20F / 97% SSW 20 G 41 MPH 7500 FT 8:1 / 12% 0.08" / 0.6" 0.42" / 3.4" 13 12 AM Thu Mar 06 2025 27F 21F / 100% SSW 22 G 45 MPH 7000 FT 9:1 / 11% 0.09" / 0.8" 0.51" / 4.2" 14 01 AM Thu Mar 06 2025 28F 20F / 97% SSW 26 G 50 MPH 6900 FT 9:1 / 11% 0.11" / 1.0" 0.62" / 5.2" 15 02 AM Thu Mar 06 2025 27F 20F / 97% S 26 G 53 MPH 6900 FT 8:1 / 12% 0.13" / 1.0" 0.75" / 6.2" 16 03 AM Thu Mar 06 2025 26F 20F / 94% S 25 G 54 MPH 6600 FT 8:1 / 12% 0.15" / 1.2" 0.90" / 7.4" 17 04 AM Thu Mar 06 2025 26F 19F / 98% S 27 G 52 MPH 6500 FT 8:1 / 12% 0.16" / 1.3" 1.06" / 8.7" 18 05 AM Thu Mar 06 2025 27F 20F / 100% S 25 G 53 MPH 6400 FT 8:1 / 12% 0.15" / 1.2" 1.21" / 9.9" 19 06 AM Thu Mar 06 2025 27F 19F / 97% S 24 G 50 MPH 6500 FT 8:1 / 12% 0.11" / 0.9" 1.32" / 10.8" 20 07 AM Thu Mar 06 2025 25F 19F / 99% S 18 G 38 MPH 6300 FT 8:1 / 12% 0.12" / 1.0" 1.44" / 11.8" 21 08 AM Thu Mar 06 2025 26F 18F / 99% S 20 G 40 MPH 6300 FT 9:1 / 11% 0.09" / 0.8" 1.53" / 12.6" 22 09 AM Thu Mar 06 2025 26F 18F / 100% S 17 G 34 MPH 6400 FT 11:1 / 9% 0.06" / 0.7" 1.59" / 13.3" 23 10 AM Thu Mar 06 2025 26F 19F / 93% S 15 G 33 MPH 6300 FT 10:1 / 10% 0.06" / 0.6" 1.65" / 13.9" 24 11 AM Thu Mar 06 2025 28F 19F / 96% S 14 G 30 MPH 6400 FT 12:1 / 8% 0.07" / 0.8" 1.72" / 14.7" 25 12 PM Thu Mar 06 2025 28F 20F / 92% SSW 15 G 29 MPH 6400 FT 12:1 / 8% 0.04" / 0.5" 1.76" / 15.2" 26 01 PM Thu Mar 06 2025 28F 20F / 91% S 15 G 33 MPH 6500 FT 9:1 / 11% 0.05" / 0.4" 1.81" / 15.6" 27 02 PM Thu Mar 06 2025 26F 18F / 91% S 15 G 38 MPH 6100 FT 10:1 / 10% 0.05" / 0.5" 1.86" / 16.1" 28 03 PM Thu Mar 06 2025 24F 16F / 85% S 14 G 35 MPH 6100 FT 12:1 / 8% 0.05" / 0.6" 1.91" / 16.7" 29 04 PM Thu Mar 06 2025 22F 14F / 86% S 15 G 33 MPH 6100 FT 14:1 / 7% 0.02" / 0.3" 1.93" / 17.0" 30 05 PM Thu Mar 06 2025 21F 12F / 79% S 15 G 34 MPH 5800 FT 12:1 / 8% 0.01" / 0.1" 1.94" / 17.1" 31 06 PM Thu Mar 06 2025 19F 10F / 80% S 14 G 32 MPH 5400 FT 13:1 / 8% 0.00" / 0.0" 1.94" / 17.1" 32 07 PM Thu Mar 06 2025 18F 10F / 87% S 13 G 31 MPH 5100 FT 13:1 / 8% 0.00" / 0.0" 1.94" / 17.1" 33 08 PM Thu Mar 06 2025 17F 10F / 83% SSE 12 G 26 MPH 5000 FT 15:1 / 7% 0.00" / 0.0" 1.94" / 17.1" 34 09 PM Thu Mar 06 2025 15F 10F / 67% S 10 G 21 MPH 4600 FT 14:1 / 7% 0.00" / 0.0" 1.94" / 17.1" 35 10 PM Thu Mar 06 2025 14F 11F / 69% S 8 G 12 MPH 4700 FT 20:1 / 5% 0.00" / 0.0" 1.94" / 17.1" 36 11 PM Thu Mar 06 2025 14F 11F / 75% S 10 G 15 MPH 4700 FT 17:1 / 6% 0.00" / 0.0" 1.94" / 17.1" 37 12 AM Fri Mar 07 2025 14F 11F / 79% SSE 9 G 14 MPH 4900 FT 17:1 / 6% 0.00" / 0.0" 1.94" / 17.1" 38 01 AM Fri Mar 07 2025 14F 12F / 81% SSW 9 G 14 MPH 5100 FT 19:1 / 5% 0.00" / 0.0" 1.94" / 17.1" 39 02 AM Fri Mar 07 2025 15F 11F / 89% S 11 G 14 MPH 5100 FT 19:1 / 5% 0.00" / 0.0" 1.94" / 17.1" 40 03 AM Fri Mar 07 2025 15F 10F / 85% SW 10 G 17 MPH 5000 FT 17:1 / 6% 0.00" / 0.0" 1.94" / 17.1" 41 04 AM Fri Mar 07 2025 15F 10F / 91% SSW 13 G 18 MPH 4800 FT 16:1 / 6% 0.01" / 0.2" 1.95" / 17.3" 42 05 AM Fri Mar 07 2025 15F 10F / 91% SSW 13 G 19 MPH 4700 FT 18:1 / 6% 0.00" / 0.0" 1.95" / 17.3" 43 06 AM Fri Mar 07 2025 15F 10F / 90% SSW 11 G 17 MPH 4800 FT 18:1 / 6% 0.00" / 0.0" 1.95" / 17.3" 44 07 AM Fri Mar 07 2025 15F 11F / 88% SSW 8 G 13 MPH 4700 FT 20:1 / 5% 0.00" / 0.0" 1.95" / 17.3" 45 08 AM Fri Mar 07 2025 16F 11F / 88% SSE 7 G 8 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 1.95" / 17.3" 46 09 AM Fri Mar 07 2025 18F 13F / 85% SE 4 G 9 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 1.95" / 17.3" 47 10 AM Fri Mar 07 2025 20F 14F / 90% ESE 3 G 7 MPH 4800 FT 22:1 / 5% 0.00" / 0.0" 1.95" / 17.3" 48 11 AM Fri Mar 07 2025 22F 16F / 97% ESE 2 G 7 MPH 5000 FT 22:1 / 5% 0.00" / 0.0" 1.95" / 17.3"