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 31-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 30 2025 18F 22F / 25% NW 14 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 12 AM Fri Jan 31 2025 20F 23F / 27% NW 13 G 16 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 01 AM Fri Jan 31 2025 18F 22F / 28% WNW 14 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 02 AM Fri Jan 31 2025 21F 23F / 26% WNW 12 G 14 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 03 AM Fri Jan 31 2025 20F 23F / 25% W 13 G 15 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 04 AM Fri Jan 31 2025 21F 23F / 25% WSW 14 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 05 AM Fri Jan 31 2025 21F 23F / 26% WSW 17 G 23 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 06 AM Fri Jan 31 2025 21F 22F / 24% WSW 18 G 26 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 07 AM Fri Jan 31 2025 21F 23F / 20% WSW 20 G 29 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 08 AM Fri Jan 31 2025 22F 24F / 17% WSW 20 G 29 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 09 AM Fri Jan 31 2025 24F 25F / 17% WSW 20 G 30 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 10 AM Fri Jan 31 2025 25F 25F / 18% WSW 19 G 32 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 11 AM Fri Jan 31 2025 31F 26F / 23% SW 18 G 31 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 12 PM Fri Jan 31 2025 33F 26F / 25% SW 20 G 34 MPH 4400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 01 PM Fri Jan 31 2025 33F 25F / 23% WSW 20 G 35 MPH 4700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 02 PM Fri Jan 31 2025 33F 25F / 26% WSW 21 G 38 MPH 4900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 03 PM Fri Jan 31 2025 30F 25F / 31% WSW 24 G 42 MPH 5000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 04 PM Fri Jan 31 2025 28F 24F / 30% WSW 27 G 45 MPH 5100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 05 PM Fri Jan 31 2025 26F 23F / 43% WSW 26 G 45 MPH 5400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 06 PM Fri Jan 31 2025 25F 23F / 59% WSW 27 G 46 MPH 5600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 07 PM Fri Jan 31 2025 24F 23F / 44% SW 28 G 48 MPH 5600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 08 PM Fri Jan 31 2025 25F 23F / 43% SW 25 G 42 MPH 5700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 09 PM Fri Jan 31 2025 25F 22F / 43% SW 28 G 50 MPH 5100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 10 PM Fri Jan 31 2025 24F 21F / 46% WSW 28 G 48 MPH 5100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 11 PM Fri Jan 31 2025 22F 18F / 76% WSW 26 G 45 MPH 6600 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1" 25 12 AM Sat Feb 01 2025 23F 20F / 92% WSW 34 G 52 MPH 6700 FT 8:1 / 12% 0.08" / 0.6" 0.09" / 0.7" 26 01 AM Sat Feb 01 2025 24F 20F / 94% WSW 27 G 47 MPH 7200 FT 8:1 / 12% 0.16" / 1.3" 0.25" / 2.0" 27 02 AM Sat Feb 01 2025 23F 19F / 94% WSW 32 G 52 MPH 6300 FT 8:1 / 12% 0.05" / 0.4" 0.30" / 2.4" 28 03 AM Sat Feb 01 2025 23F 18F / 92% WSW 30 G 51 MPH 6200 FT 9:1 / 11% 0.05" / 0.4" 0.35" / 2.8" 29 04 AM Sat Feb 01 2025 22F 18F / 94% WSW 28 G 47 MPH 6600 FT 8:1 / 12% 0.07" / 0.6" 0.42" / 3.4" 30 05 AM Sat Feb 01 2025 23F 18F / 98% WSW 29 G 47 MPH 6200 FT 7:1 / 14% 0.10" / 0.7" 0.52" / 4.1" 31 06 AM Sat Feb 01 2025 23F 18F / 99% WSW 28 G 44 MPH 6200 FT 7:1 / 14% 0.10" / 0.7" 0.62" / 4.8" 32 07 AM Sat Feb 01 2025 23F 18F / 97% W 28 G 42 MPH 6200 FT 7:1 / 14% 0.10" / 0.7" 0.72" / 5.5" 33 08 AM Sat Feb 01 2025 23F 18F / 99% W 22 G 36 MPH 6400 FT 8:1 / 12% 0.10" / 0.8" 0.82" / 6.3" 34 09 AM Sat Feb 01 2025 25F 18F / 99% WSW 20 G 35 MPH 6300 FT 11:1 / 9% 0.12" / 1.3" 0.94" / 7.6" 35 10 AM Sat Feb 01 2025 25F 18F / 96% WSW 21 G 35 MPH 6300 FT 13:1 / 8% 0.10" / 1.3" 1.04" / 8.9" 36 11 AM Sat Feb 01 2025 26F 19F / 94% WSW 23 G 40 MPH 6500 FT 7:1 / 14% 0.09" / 0.6" 1.13" / 9.5" 37 12 PM Sat Feb 01 2025 27F 21F / 91% WSW 23 G 40 MPH 7000 FT 8:1 / 12% 0.08" / 0.6" 1.21" / 10.1" 38 01 PM Sat Feb 01 2025 28F 21F / 92% WSW 22 G 43 MPH 6900 FT 8:1 / 12% 0.09" / 0.7" 1.30" / 10.8" 39 02 PM Sat Feb 01 2025 27F 19F / 95% WSW 26 G 47 MPH 6900 FT 7:1 / 14% 0.07" / 0.5" 1.37" / 11.3" 40 03 PM Sat Feb 01 2025 26F 19F / 95% WSW 27 G 47 MPH 7000 FT 7:1 / 14% 0.07" / 0.5" 1.44" / 11.8" 41 04 PM Sat Feb 01 2025 27F 20F / 96% WSW 30 G 49 MPH 7500 FT 8:1 / 12% 0.08" / 0.6" 1.52" / 12.4" 42 05 PM Sat Feb 01 2025 27F 20F / 96% WSW 27 G 45 MPH 7600 FT 7:1 / 14% 0.09" / 0.6" 1.61" / 13.0" 43 06 PM Sat Feb 01 2025 27F 21F / 96% WSW 27 G 47 MPH 7600 FT 8:1 / 12% 0.10" / 0.8" 1.71" / 13.8" 44 07 PM Sat Feb 01 2025 27F 21F / 97% WSW 28 G 43 MPH 7500 FT 8:1 / 12% 0.09" / 0.7" 1.80" / 14.5" 45 08 PM Sat Feb 01 2025 28F 23F / 97% WSW 27 G 45 MPH 7500 FT 8:1 / 12% 0.10" / 0.8" 1.90" / 15.3" 46 09 PM Sat Feb 01 2025 29F 23F / 99% WSW 30 G 49 MPH 7600 FT 9:1 / 11% 0.10" / 0.9" 2.00" / 16.2" 47 10 PM Sat Feb 01 2025 30F 23F / 98% WSW 32 G 55 MPH 7700 FT 9:1 / 11% 0.12" / 1.1" 2.12" / 17.3" 48 11 PM Sat Feb 01 2025 30F 24F / 95% WSW 37 G 61 MPH 8600 FT 9:1 / 11% 0.07" / 0.6" 2.19" / 17.9"