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 15-Mar-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 06 PM Fri Mar 14 2025 16F 8F / 89% SW 13 G 25 MPH 4400 FT 24:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Fri Mar 14 2025 15F 7F / 91% SW 16 G 29 MPH 4300 FT 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Fri Mar 14 2025 13F 6F / 87% WSW 17 G 29 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Fri Mar 14 2025 13F 6F / 93% WSW 17 G 28 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Fri Mar 14 2025 13F 7F / 95% WSW 15 G 27 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Fri Mar 14 2025 13F 7F / 98% W 14 G 24 MPH ≤ KSLC 17:1 / 6% 0.01" / 0.2" 0.01" / 0.2" 6 12 AM Sat Mar 15 2025 12F 7F / 97% WSW 16 G 26 MPH ≤ KSLC 18:1 / 6% 0.03" / 0.5" 0.04" / 0.7" 7 01 AM Sat Mar 15 2025 13F 7F / 95% W 17 G 28 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.04" / 0.7" 8 02 AM Sat Mar 15 2025 14F 7F / 94% W 20 G 31 MPH 4300 FT 19:1 / 5% 0.00" / 0.0" 0.04" / 0.7" 9 03 AM Sat Mar 15 2025 13F 6F / 95% W 20 G 29 MPH 4500 FT 19:1 / 5% 0.00" / 0.0" 0.04" / 0.7" 10 04 AM Sat Mar 15 2025 13F 6F / 96% W 20 G 29 MPH 4400 FT 19:1 / 5% 0.00" / 0.0" 0.04" / 0.7" 11 05 AM Sat Mar 15 2025 13F 6F / 96% WNW 19 G 29 MPH 4400 FT 18:1 / 6% 0.00" / 0.0" 0.04" / 0.7" 12 06 AM Sat Mar 15 2025 13F 6F / 94% WNW 18 G 28 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.04" / 0.7" 13 07 AM Sat Mar 15 2025 12F 6F / 95% WNW 17 G 27 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.04" / 0.7" 14 08 AM Sat Mar 15 2025 12F 5F / 100% WNW 18 G 28 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.04" / 0.7" 15 09 AM Sat Mar 15 2025 12F 5F / 95% WNW 20 G 30 MPH ≤ KSLC 19:1 / 5% 0.01" / 0.2" 0.05" / 0.9" 16 10 AM Sat Mar 15 2025 14F 6F / 94% WNW 19 G 29 MPH 4300 FT 18:1 / 6% 0.03" / 0.5" 0.08" / 1.4" 17 11 AM Sat Mar 15 2025 14F 6F / 95% WNW 18 G 28 MPH 4300 FT 18:1 / 6% 0.04" / 0.7" 0.12" / 2.1" 18 12 PM Sat Mar 15 2025 16F 7F / 95% W 19 G 30 MPH 4300 FT 18:1 / 6% 0.04" / 0.7" 0.16" / 2.8" 19 01 PM Sat Mar 15 2025 20F 9F / 93% W 19 G 31 MPH 4400 FT 17:1 / 6% 0.06" / 1.0" 0.22" / 3.8" 20 02 PM Sat Mar 15 2025 18F 9F / 91% W 20 G 32 MPH 4500 FT 17:1 / 6% 0.07" / 1.2" 0.29" / 5.0" 21 03 PM Sat Mar 15 2025 19F 9F / 97% W 21 G 33 MPH 4700 FT 17:1 / 6% 0.09" / 1.5" 0.38" / 6.5" 22 04 PM Sat Mar 15 2025 17F 9F / 96% W 16 G 24 MPH 4300 FT 19:1 / 5% 0.05" / 1.0" 0.43" / 7.5" 23 05 PM Sat Mar 15 2025 17F 6F / 97% W 25 G 40 MPH 4800 FT 15:1 / 7% 0.13" / 2.0" 0.56" / 9.5" 24 06 PM Sat Mar 15 2025 15F 5F / 98% W 27 G 42 MPH 4900 FT 14:1 / 7% 0.05" / 0.7" 0.61" / 10.2" 25 07 PM Sat Mar 15 2025 14F 5F / 100% W 29 G 44 MPH 4800 FT 15:1 / 7% 0.00" / 0.0" 0.61" / 10.2" 26 08 PM Sat Mar 15 2025 13F 6F / 99% WNW 28 G 45 MPH 4700 FT 19:1 / 5% 0.00" / 0.0" 0.61" / 10.2" 27 09 PM Sat Mar 15 2025 13F 5F / 99% W 28 G 42 MPH 4500 FT 20:1 / 5% 0.00" / 0.0" 0.61" / 10.2" 28 10 PM Sat Mar 15 2025 11F 6F / 90% WNW 29 G 43 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.61" / 10.2" 29 11 PM Sat Mar 15 2025 11F 6F / 91% W 29 G 43 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.61" / 10.2" 30 12 AM Sun Mar 16 2025 11F 7F / 90% W 29 G 44 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.61" / 10.2" 31 01 AM Sun Mar 16 2025 13F 9F / 94% W 30 G 47 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.61" / 10.2" 32 02 AM Sun Mar 16 2025 15F 11F / 100% W 30 G 48 MPH ≤ KSLC 12:1 / 8% 0.01" / 0.1" 0.62" / 10.3" 33 03 AM Sun Mar 16 2025 16F 11F / 100% W 28 G 45 MPH ≤ KSLC 11:1 / 9% 0.02" / 0.2" 0.64" / 10.5" 34 04 AM Sun Mar 16 2025 18F 12F / 98% W 27 G 44 MPH ≤ KSLC 10:1 / 10% 0.05" / 0.5" 0.69" / 11.0" 35 05 AM Sun Mar 16 2025 19F 13F / 97% W 26 G 42 MPH ≤ KSLC 10:1 / 10% 0.07" / 0.7" 0.76" / 11.7" 36 06 AM Sun Mar 16 2025 19F 14F / 100% WSW 24 G 39 MPH ≤ KSLC 9:1 / 11% 0.03" / 0.3" 0.79" / 12.0" 37 07 AM Sun Mar 16 2025 20F 15F / 94% WSW 23 G 36 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.79" / 12.0" 38 08 AM Sun Mar 16 2025 20F 15F / 87% WSW 23 G 38 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.79" / 12.0" 39 09 AM Sun Mar 16 2025 20F 16F / 91% WSW 23 G 37 MPH 4700 FT 10:1 / 10% 0.01" / 0.1" 0.80" / 12.1" 40 10 AM Sun Mar 16 2025 21F 16F / 88% WSW 25 G 43 MPH 4900 FT 10:1 / 10% 0.03" / 0.3" 0.83" / 12.4" 41 11 AM Sun Mar 16 2025 22F 16F / 78% SW 28 G 45 MPH 5100 FT 11:1 / 9% 0.00" / 0.0" 0.83" / 12.4" 42 12 PM Sun Mar 16 2025 25F 19F / 70% SW 25 G 42 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.83" / 12.4" 43 01 PM Sun Mar 16 2025 28F 19F / 69% SW 26 G 44 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.83" / 12.4" 44 02 PM Sun Mar 16 2025 30F 21F / 62% SW 27 G 47 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.83" / 12.4" 45 03 PM Sun Mar 16 2025 31F 22F / 61% SW 25 G 46 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.83" / 12.4" 46 04 PM Sun Mar 16 2025 33F 24F / 60% SW 22 G 42 MPH 7200 FT 12:1 / 8% 0.00" / 0.0" 0.83" / 12.4" 47 05 PM Sun Mar 16 2025 35F 27F / 55% SW 24 G 44 MPH 7400 FT 12:1 / 8% 0.00" / 0.0" 0.83" / 12.4" 48 06 PM Sun Mar 16 2025 32F 26F / 54% SW 24 G 41 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.83" / 12.4"