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 00Z 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 05 PM Thu Jan 30 2025 23F 23F / 30% NW 18 G 28 MPH 4300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Thu Jan 30 2025 21F 20F / 25% NW 22 G 32 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 07 PM Thu Jan 30 2025 21F 20F / 32% NNW 21 G 29 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 08 PM Thu Jan 30 2025 20F 20F / 33% NNW 19 G 27 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 09 PM Thu Jan 30 2025 20F 21F / 31% NNW 19 G 25 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 10 PM Thu Jan 30 2025 21F 22F / 31% NW 18 G 24 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 11 PM Thu Jan 30 2025 20F 22F / 30% NW 15 G 21 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 12 AM Fri Jan 31 2025 21F 23F / 29% NW 14 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 01 AM Fri Jan 31 2025 20F 22F / 27% WNW 14 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 02 AM Fri Jan 31 2025 21F 23F / 28% WNW 13 G 17 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 03 AM Fri Jan 31 2025 21F 23F / 27% W 14 G 19 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 04 AM Fri Jan 31 2025 21F 23F / 27% WSW 16 G 22 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 05 AM Fri Jan 31 2025 21F 23F / 24% WSW 18 G 26 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 06 AM Fri Jan 31 2025 22F 23F / 24% WSW 20 G 29 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 07 AM Fri Jan 31 2025 23F 24F / 21% SW 21 G 31 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 08 AM Fri Jan 31 2025 23F 24F / 20% WSW 20 G 31 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 16 09 AM Fri Jan 31 2025 24F 25F / 19% SW 20 G 32 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 10 AM Fri Jan 31 2025 26F 25F / 21% WSW 19 G 32 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 11 AM Fri Jan 31 2025 31F 25F / 24% WSW 18 G 33 MPH 4300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 12 PM Fri Jan 31 2025 32F 25F / 24% WSW 19 G 34 MPH 4700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 20 01 PM Fri Jan 31 2025 33F 25F / 25% WSW 21 G 37 MPH 4900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 02 PM Fri Jan 31 2025 33F 25F / 26% WSW 22 G 38 MPH 5100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 03 PM Fri Jan 31 2025 30F 24F / 32% WSW 25 G 43 MPH 5300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 04 PM Fri Jan 31 2025 28F 23F / 35% WSW 27 G 45 MPH 5500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 05 PM Fri Jan 31 2025 25F 22F / 66% WSW 24 G 42 MPH 6300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 25 06 PM Fri Jan 31 2025 24F 21F / 80% WSW 26 G 46 MPH 6600 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1" 26 07 PM Fri Jan 31 2025 23F 20F / 67% WSW 27 G 46 MPH 6100 FT 7:1 / 14% 0.01" / 0.1" 0.02" / 0.2" 27 08 PM Fri Jan 31 2025 24F 21F / 65% WSW 27 G 41 MPH 6300 FT 7:1 / 14% 0.00" / 0.0" 0.02" / 0.2" 28 09 PM Fri Jan 31 2025 24F 20F / 69% WSW 26 G 42 MPH 7700 FT 8:1 / 12% 0.01" / 0.1" 0.03" / 0.3" 29 10 PM Fri Jan 31 2025 23F 19F / 60% WSW 25 G 43 MPH 6500 FT 7:1 / 14% 0.00" / 0.0" 0.03" / 0.3" 30 11 PM Fri Jan 31 2025 23F 19F / 82% SW 25 G 41 MPH 6600 FT 7:1 / 14% 0.02" / 0.1" 0.05" / 0.4" 31 12 AM Sat Feb 01 2025 24F 20F / 88% SW 27 G 46 MPH 6500 FT 8:1 / 12% 0.05" / 0.4" 0.10" / 0.8" 32 01 AM Sat Feb 01 2025 24F 20F / 88% WSW 27 G 45 MPH 6700 FT 8:1 / 12% 0.04" / 0.3" 0.14" / 1.1" 33 02 AM Sat Feb 01 2025 23F 19F / 89% SW 28 G 47 MPH 6800 FT 7:1 / 14% 0.03" / 0.2" 0.17" / 1.3" 34 03 AM Sat Feb 01 2025 23F 19F / 97% WSW 26 G 43 MPH 6900 FT 7:1 / 14% 0.05" / 0.4" 0.22" / 1.7" 35 04 AM Sat Feb 01 2025 25F 20F / 97% WSW 27 G 44 MPH 6900 FT 7:1 / 14% 0.13" / 0.9" 0.35" / 2.6" 36 05 AM Sat Feb 01 2025 25F 19F / 100% WSW 28 G 47 MPH 7100 FT 7:1 / 14% 0.14" / 1.0" 0.49" / 3.6" 37 06 AM Sat Feb 01 2025 25F 20F / 100% WSW 30 G 47 MPH 7200 FT 8:1 / 12% 0.13" / 1.0" 0.62" / 4.6" 38 07 AM Sat Feb 01 2025 25F 19F / 95% W 29 G 51 MPH 7100 FT 8:1 / 12% 0.13" / 1.0" 0.75" / 5.6" 39 08 AM Sat Feb 01 2025 25F 20F / 93% W 28 G 45 MPH 7200 FT 9:1 / 11% 0.13" / 1.2" 0.88" / 6.8" 40 09 AM Sat Feb 01 2025 25F 20F / 95% WSW 25 G 43 MPH 6900 FT 7:1 / 14% 0.10" / 0.7" 0.98" / 7.5" 41 10 AM Sat Feb 01 2025 26F 20F / 93% WSW 27 G 43 MPH 6800 FT 7:1 / 14% 0.09" / 0.6" 1.07" / 8.1" 42 11 AM Sat Feb 01 2025 27F 21F / 92% WSW 25 G 42 MPH 6800 FT 6:1 / 17% 0.10" / 0.6" 1.17" / 8.7" 43 12 PM Sat Feb 01 2025 29F 21F / 94% WSW 23 G 43 MPH 6900 FT 6:1 / 17% 0.10" / 0.6" 1.27" / 9.3" 44 01 PM Sat Feb 01 2025 28F 20F / 90% WSW 27 G 47 MPH 7100 FT 7:1 / 14% 0.06" / 0.4" 1.33" / 9.7" 45 02 PM Sat Feb 01 2025 26F 19F / 91% WSW 28 G 47 MPH 7100 FT 7:1 / 14% 0.01" / 0.1" 1.34" / 9.8" 46 03 PM Sat Feb 01 2025 27F 20F / 94% WSW 26 G 47 MPH 7400 FT 8:1 / 12% 0.04" / 0.3" 1.38" / 10.1" 47 04 PM Sat Feb 01 2025 27F 20F / 94% WSW 31 G 52 MPH 7100 FT 7:1 / 14% 0.02" / 0.1" 1.40" / 10.2" 48 05 PM Sat Feb 01 2025 27F 20F / 94% WSW 33 G 53 MPH 7100 FT 8:1 / 12% 0.02" / 0.2" 1.42" / 10.4"