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 24-Feb-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 Sun Feb 23 2025 28F 24F / 83% W 32 G 50 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 12 AM Mon Feb 24 2025 26F 24F / 88% W 32 G 51 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 01 AM Mon Feb 24 2025 25F 23F / 90% W 29 G 46 MPH 8600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 02 AM Mon Feb 24 2025 26F 23F / 100% W 30 G 48 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 03 AM Mon Feb 24 2025 28F 23F / 93% WNW 28 G 46 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 04 AM Mon Feb 24 2025 27F 22F / 95% WNW 28 G 46 MPH 8500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 05 AM Mon Feb 24 2025 27F 22F / 97% WNW 28 G 44 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 06 AM Mon Feb 24 2025 26F 22F / 99% WNW 28 G 44 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 07 AM Mon Feb 24 2025 26F 22F / 90% WNW 27 G 44 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 08 AM Mon Feb 24 2025 26F 21F / 94% WNW 27 G 42 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 09 AM Mon Feb 24 2025 28F 23F / 96% WNW 28 G 42 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 10 AM Mon Feb 24 2025 31F 24F / 81% W 26 G 40 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 12 11 AM Mon Feb 24 2025 33F 25F / 65% W 27 G 41 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 12 PM Mon Feb 24 2025 34F 26F / 58% W 28 G 43 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 01 PM Mon Feb 24 2025 36F 26F / 48% W 28 G 43 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 02 PM Mon Feb 24 2025 36F 26F / 42% W 28 G 42 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 03 PM Mon Feb 24 2025 35F 28F / 50% W 27 G 41 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 04 PM Mon Feb 24 2025 34F 28F / 55% W 26 G 39 MPH 8600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 05 PM Mon Feb 24 2025 33F 28F / 61% W 26 G 40 MPH 8700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 06 PM Mon Feb 24 2025 31F 27F / 65% W 26 G 40 MPH 8800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 20 07 PM Mon Feb 24 2025 29F 27F / 66% W 22 G 35 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 08 PM Mon Feb 24 2025 30F 28F / 64% WSW 21 G 31 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 09 PM Mon Feb 24 2025 31F 27F / 65% WSW 20 G 32 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 10 PM Mon Feb 24 2025 30F 26F / 71% SW 20 G 35 MPH 9200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 11 PM Mon Feb 24 2025 29F 26F / 83% SW 21 G 36 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 12 AM Tue Feb 25 2025 29F 26F / 76% SW 25 G 43 MPH 9400 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1" 26 01 AM Tue Feb 25 2025 30F 26F / 76% SW 22 G 37 MPH 9500 FT 8:1 / 12% 0.01" / 0.1" 0.02" / 0.2" 27 02 AM Tue Feb 25 2025 31F 27F / 75% SW 25 G 42 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.02" / 0.2" 28 03 AM Tue Feb 25 2025 31F 27F / 76% SW 26 G 44 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.02" / 0.2" 29 04 AM Tue Feb 25 2025 30F 26F / 76% WSW 26 G 44 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.02" / 0.2" 30 05 AM Tue Feb 25 2025 29F 25F / 87% WSW 25 G 42 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 31 06 AM Tue Feb 25 2025 27F 23F / 58% W 29 G 45 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 32 07 AM Tue Feb 25 2025 25F 21F / 63% W 29 G 43 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 33 08 AM Tue Feb 25 2025 24F 20F / 47% W 30 G 45 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 34 09 AM Tue Feb 25 2025 25F 19F / 54% W 24 G 38 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 35 10 AM Tue Feb 25 2025 26F 19F / 64% W 22 G 33 MPH 5900 FT 12:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 36 11 AM Tue Feb 25 2025 26F 18F / 77% W 21 G 33 MPH 5900 FT 12:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 37 12 PM Tue Feb 25 2025 27F 18F / 66% W 22 G 36 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 38 01 PM Tue Feb 25 2025 27F 18F / 70% W 25 G 39 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 39 02 PM Tue Feb 25 2025 27F 17F / 74% W 24 G 40 MPH 5900 FT 7:1 / 14% 0.00" / 0.0" 0.02" / 0.2" 40 03 PM Tue Feb 25 2025 26F 17F / 88% W 25 G 39 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 41 04 PM Tue Feb 25 2025 26F 16F / 93% W 26 G 41 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.02" / 0.2" 42 05 PM Tue Feb 25 2025 23F 15F / 95% W 25 G 40 MPH 5100 FT 17:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 43 06 PM Tue Feb 25 2025 20F 14F / 88% W 27 G 41 MPH 5300 FT 15:1 / 7% 0.00" / 0.0" 0.02" / 0.2" 44 07 PM Tue Feb 25 2025 17F 12F / 83% WNW 28 G 42 MPH 4900 FT 15:1 / 7% 0.00" / 0.0" 0.02" / 0.2" 45 08 PM Tue Feb 25 2025 15F 11F / 85% WNW 29 G 44 MPH 4700 FT 14:1 / 7% 0.00" / 0.0" 0.02" / 0.2" 46 09 PM Tue Feb 25 2025 14F 10F / 77% WNW 31 G 46 MPH 4400 FT 13:1 / 8% 0.00" / 0.0" 0.02" / 0.2" 47 10 PM Tue Feb 25 2025 12F 9F / 84% WNW 29 G 45 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.02" / 0.2" 48 11 PM Tue Feb 25 2025 12F 9F / 85% WNW 28 G 41 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.02" / 0.2"