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 03-Jan-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 Thu Jan 02 2025 26F 26F / 46% SW 21 G 31 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 12 AM Fri Jan 03 2025 26F 26F / 49% WSW 21 G 32 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 01 AM Fri Jan 03 2025 27F 26F / 44% SW 22 G 36 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 02 AM Fri Jan 03 2025 28F 27F / 48% SW 24 G 39 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 03 AM Fri Jan 03 2025 28F 27F / 50% SW 25 G 41 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 04 AM Fri Jan 03 2025 28F 27F / 55% SW 25 G 44 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 05 AM Fri Jan 03 2025 29F 27F / 55% SW 26 G 46 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 06 AM Fri Jan 03 2025 29F 27F / 62% SW 26 G 47 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 07 AM Fri Jan 03 2025 29F 28F / 58% SW 27 G 46 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 08 AM Fri Jan 03 2025 29F 27F / 57% SW 27 G 45 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 09 AM Fri Jan 03 2025 29F 28F / 50% SW 26 G 43 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 10 AM Fri Jan 03 2025 30F 28F / 46% SW 24 G 43 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 12 11 AM Fri Jan 03 2025 33F 29F / 39% SW 24 G 43 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 12 PM Fri Jan 03 2025 35F 29F / 39% SSW 24 G 42 MPH 7200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 01 PM Fri Jan 03 2025 35F 29F / 34% SSW 22 G 42 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 02 PM Fri Jan 03 2025 35F 29F / 30% SSW 22 G 43 MPH 7200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 03 PM Fri Jan 03 2025 33F 29F / 35% SSW 24 G 45 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 04 PM Fri Jan 03 2025 31F 27F / 32% SSW 25 G 47 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 05 PM Fri Jan 03 2025 28F 27F / 35% SSW 24 G 47 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 06 PM Fri Jan 03 2025 27F 26F / 37% SSW 23 G 45 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 20 07 PM Fri Jan 03 2025 28F 26F / 37% SSW 23 G 44 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 21 08 PM Fri Jan 03 2025 28F 25F / 43% S 24 G 45 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 09 PM Fri Jan 03 2025 28F 24F / 46% SSW 26 G 48 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 10 PM Fri Jan 03 2025 27F 23F / 44% SSW 27 G 50 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 11 PM Fri Jan 03 2025 26F 22F / 50% SSW 27 G 52 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 12 AM Sat Jan 04 2025 25F 21F / 52% SSW 27 G 49 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 01 AM Sat Jan 04 2025 25F 20F / 53% SSW 27 G 50 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 02 AM Sat Jan 04 2025 24F 19F / 57% SSW 27 G 48 MPH 6200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 03 AM Sat Jan 04 2025 23F 18F / 57% WSW 26 G 47 MPH 5900 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 29 04 AM Sat Jan 04 2025 21F 15F / 91% WSW 19 G 34 MPH 6200 FT 12:1 / 8% 0.03" / 0.4" 0.03" / 0.4" 30 05 AM Sat Jan 04 2025 21F 15F / 95% W 20 G 36 MPH 5400 FT 12:1 / 8% 0.18" / 2.2" 0.21" / 2.6" 31 06 AM Sat Jan 04 2025 18F 12F / 87% WNW 25 G 41 MPH 5400 FT 13:1 / 8% 0.24" / 3.1" 0.45" / 5.7" 32 07 AM Sat Jan 04 2025 17F 9F / 88% W 27 G 43 MPH 5000 FT 15:1 / 7% 0.17" / 2.6" 0.62" / 8.3" 33 08 AM Sat Jan 04 2025 16F 10F / 88% WNW 25 G 39 MPH 4600 FT 14:1 / 7% 0.09" / 1.3" 0.71" / 9.6" 34 09 AM Sat Jan 04 2025 14F 7F / 93% WNW 28 G 45 MPH 4600 FT 13:1 / 8% 0.13" / 1.7" 0.84" / 11.3" 35 10 AM Sat Jan 04 2025 14F 5F / 93% WNW 30 G 45 MPH 4500 FT 12:1 / 8% 0.09" / 1.1" 0.93" / 12.4" 36 11 AM Sat Jan 04 2025 15F 5F / 96% WNW 30 G 47 MPH 4300 FT 12:1 / 8% 0.09" / 1.1" 1.02" / 13.5" 37 12 PM Sat Jan 04 2025 16F 7F / 92% WNW 30 G 46 MPH 4300 FT 12:1 / 8% 0.06" / 0.7" 1.08" / 14.2" 38 01 PM Sat Jan 04 2025 17F 7F / 98% WNW 27 G 43 MPH 4400 FT 12:1 / 8% 0.04" / 0.5" 1.12" / 14.7" 39 02 PM Sat Jan 04 2025 19F 8F / 97% WNW 31 G 45 MPH 4500 FT 12:1 / 8% 0.11" / 1.3" 1.23" / 16.0" 40 03 PM Sat Jan 04 2025 18F 8F / 97% WNW 29 G 43 MPH 4500 FT 12:1 / 8% 0.09" / 1.1" 1.32" / 17.1" 41 04 PM Sat Jan 04 2025 17F 8F / 93% WNW 29 G 44 MPH 4600 FT 13:1 / 8% 0.06" / 0.8" 1.38" / 17.9" 42 05 PM Sat Jan 04 2025 16F 8F / 92% WNW 28 G 46 MPH 4600 FT 13:1 / 8% 0.04" / 0.5" 1.42" / 18.4" 43 06 PM Sat Jan 04 2025 15F 9F / 89% NW 23 G 35 MPH 4700 FT 19:1 / 5% 0.02" / 0.4" 1.44" / 18.8" 44 07 PM Sat Jan 04 2025 14F 10F / 91% NW 22 G 33 MPH 4500 FT 18:1 / 6% 0.00" / 0.0" 1.44" / 18.8" 45 08 PM Sat Jan 04 2025 14F 10F / 97% NW 23 G 34 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 1.44" / 18.8" 46 09 PM Sat Jan 04 2025 14F 10F / 92% NW 25 G 35 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 1.44" / 18.8" 47 10 PM Sat Jan 04 2025 14F 10F / 86% WNW 26 G 35 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 1.44" / 18.8" 48 11 PM Sat Jan 04 2025 13F 11F / 89% WNW 27 G 34 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 1.44" / 18.8"