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 12Z 06-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 05 AM Thu Feb 06 2025 21F 18F / 74% WSW 25 G 42 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Thu Feb 06 2025 21F 19F / 76% SW 26 G 45 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Thu Feb 06 2025 22F 19F / 76% SW 26 G 44 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Thu Feb 06 2025 23F 20F / 70% SW 28 G 47 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Thu Feb 06 2025 25F 21F / 74% SW 25 G 46 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Thu Feb 06 2025 28F 22F / 77% SSW 26 G 48 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Thu Feb 06 2025 31F 22F / 69% SSW 25 G 48 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Thu Feb 06 2025 31F 23F / 60% SSW 27 G 50 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Thu Feb 06 2025 31F 23F / 61% SSW 25 G 49 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Thu Feb 06 2025 31F 23F / 64% SSW 23 G 47 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Thu Feb 06 2025 32F 22F / 72% SSW 21 G 43 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Thu Feb 06 2025 33F 23F / 74% SSW 20 G 43 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Thu Feb 06 2025 31F 23F / 76% SSW 21 G 41 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Thu Feb 06 2025 29F 22F / 78% SW 24 G 47 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Thu Feb 06 2025 29F 22F / 85% SW 27 G 50 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 08 PM Thu Feb 06 2025 28F 21F / 88% SW 28 G 52 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 16 09 PM Thu Feb 06 2025 28F 21F / 92% SW 28 G 54 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 10 PM Thu Feb 06 2025 28F 21F / 99% SW 28 G 53 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 11 PM Thu Feb 06 2025 27F 21F / 100% SW 28 G 51 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 12 AM Fri Feb 07 2025 27F 21F / 99% SW 29 G 52 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 01 AM Fri Feb 07 2025 27F 21F / 100% SSW 28 G 50 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 21 02 AM Fri Feb 07 2025 27F 21F / 100% SSW 28 G 50 MPH 8100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 03 AM Fri Feb 07 2025 28F 21F / 100% SSW 27 G 53 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 23 04 AM Fri Feb 07 2025 27F 21F / 100% SSW 28 G 54 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 05 AM Fri Feb 07 2025 27F 21F / 100% SSW 29 G 52 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 25 06 AM Fri Feb 07 2025 27F 20F / 100% SSW 28 G 51 MPH 7900 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 26 07 AM Fri Feb 07 2025 27F 21F / 100% SW 28 G 50 MPH 7800 FT 10:1 / 10% 0.01" / 0.1" 0.02" / 0.2" 27 08 AM Fri Feb 07 2025 27F 21F / 98% SW 26 G 49 MPH 7800 FT 10:1 / 10% 0.03" / 0.3" 0.05" / 0.5" 28 09 AM Fri Feb 07 2025 27F 20F / 99% SW 27 G 50 MPH 7900 FT 11:1 / 9% 0.08" / 0.9" 0.13" / 1.4" 29 10 AM Fri Feb 07 2025 27F 21F / 99% SW 26 G 50 MPH 8000 FT 11:1 / 9% 0.12" / 1.3" 0.25" / 2.7" 30 11 AM Fri Feb 07 2025 29F 21F / 100% SW 26 G 50 MPH 7800 FT 11:1 / 9% 0.21" / 2.3" 0.46" / 5.0" 31 12 PM Fri Feb 07 2025 29F 21F / 98% SW 27 G 52 MPH 7800 FT 10:1 / 10% 0.10" / 1.0" 0.56" / 6.0" 32 01 PM Fri Feb 07 2025 29F 21F / 96% SW 27 G 50 MPH 6500 FT 10:1 / 10% 0.11" / 1.1" 0.67" / 7.1" 33 02 PM Fri Feb 07 2025 23F 16F / 97% W 20 G 39 MPH 5700 FT 8:1 / 12% 0.26" / 2.1" 0.93" / 9.2" 34 03 PM Fri Feb 07 2025 21F 13F / 98% W 23 G 38 MPH 5100 FT 15:1 / 7% 0.19" / 2.8" 1.12" / 12.0" 35 04 PM Fri Feb 07 2025 19F 12F / 97% W 20 G 35 MPH 4900 FT 19:1 / 5% 0.15" / 2.8" 1.27" / 14.8" 36 05 PM Fri Feb 07 2025 17F 10F / 97% W 27 G 46 MPH 4700 FT 17:1 / 6% 0.12" / 2.0" 1.39" / 16.8" 37 06 PM Fri Feb 07 2025 15F 10F / 93% W 31 G 54 MPH 4400 FT 15:1 / 7% 0.08" / 1.2" 1.47" / 18.0" 38 07 PM Fri Feb 07 2025 15F 9F / 88% W 30 G 51 MPH 4300 FT 15:1 / 7% 0.06" / 0.9" 1.53" / 18.9" 39 08 PM Fri Feb 07 2025 14F 9F / 94% WNW 26 G 43 MPH ≤ KSLC 18:1 / 6% 0.05" / 0.9" 1.58" / 19.8" 40 09 PM Fri Feb 07 2025 13F 7F / 95% WNW 29 G 49 MPH ≤ KSLC 18:1 / 6% 0.03" / 0.5" 1.61" / 20.3" 41 10 PM Fri Feb 07 2025 12F 7F / 90% WNW 32 G 51 MPH ≤ KSLC 15:1 / 7% 0.02" / 0.3" 1.63" / 20.6" 42 11 PM Fri Feb 07 2025 12F 6F / 90% WNW 31 G 48 MPH ≤ KSLC 20:1 / 5% 0.01" / 0.2" 1.64" / 20.8" 43 12 AM Sat Feb 08 2025 12F 5F / 81% WNW 28 G 46 MPH ≤ KSLC 21:1 / 5% 0.01" / 0.2" 1.65" / 21.0" 44 01 AM Sat Feb 08 2025 10F 6F / 75% WNW 27 G 41 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.65" / 21.0" 45 02 AM Sat Feb 08 2025 8F 4F / 80% W 26 G 40 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 1.65" / 21.0" 46 03 AM Sat Feb 08 2025 7F 3F / 89% WNW 25 G 40 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 1.65" / 21.0" 47 04 AM Sat Feb 08 2025 7F 2F / 93% WNW 24 G 33 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.65" / 21.0" 48 05 AM Sat Feb 08 2025 7F 3F / 95% W 24 G 35 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 1.65" / 21.0"