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 07-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 05 AM Fri Mar 07 2025 15F 8F / 95% WNW 15 G 22 MPH 4400 FT 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Fri Mar 07 2025 14F 8F / 99% NW 13 G 20 MPH 4400 FT 19:1 / 5% 0.02" / 0.4" 0.02" / 0.4" 2 07 AM Fri Mar 07 2025 14F 8F / 100% NW 14 G 21 MPH 4400 FT 22:1 / 5% 0.01" / 0.2" 0.03" / 0.6" 3 08 AM Fri Mar 07 2025 14F 8F / 98% NW 10 G 19 MPH ≤ KSLC 22:1 / 5% 0.01" / 0.2" 0.04" / 0.8" 4 09 AM Fri Mar 07 2025 15F 9F / 94% NW 13 G 19 MPH 4300 FT 21:1 / 5% 0.00" / 0.0" 0.04" / 0.8" 5 10 AM Fri Mar 07 2025 16F 10F / 94% SSE 9 G 14 MPH 4300 FT 21:1 / 5% 0.00" / 0.0" 0.04" / 0.8" 6 11 AM Fri Mar 07 2025 18F 11F / 97% NNW 6 G 12 MPH 4500 FT 23:1 / 4% 0.00" / 0.0" 0.04" / 0.8" 7 12 PM Fri Mar 07 2025 20F 12F / 97% E 6 G 12 MPH 4600 FT 21:1 / 5% 0.00" / 0.0" 0.04" / 0.8" 8 01 PM Fri Mar 07 2025 20F 13F / 97% NNW 6 G 12 MPH 4700 FT 21:1 / 5% 0.00" / 0.0" 0.04" / 0.8" 9 02 PM Fri Mar 07 2025 21F 13F / 98% NNW 4 G 9 MPH 4900 FT 20:1 / 5% 0.00" / 0.0" 0.04" / 0.8" 10 03 PM Fri Mar 07 2025 20F 13F / 95% NNW 7 G 13 MPH 5000 FT 17:1 / 6% 0.00" / 0.0" 0.04" / 0.8" 11 04 PM Fri Mar 07 2025 19F 12F / 97% NNE 9 G 14 MPH 5100 FT 15:1 / 7% 0.00" / 0.0" 0.04" / 0.8" 12 05 PM Fri Mar 07 2025 17F 10F / 87% WNW 9 G 19 MPH 5100 FT 15:1 / 7% 0.01" / 0.2" 0.05" / 1.0" 13 06 PM Fri Mar 07 2025 16F 10F / 87% NNW 14 G 23 MPH 5100 FT 16:1 / 6% 0.01" / 0.2" 0.06" / 1.2" 14 07 PM Fri Mar 07 2025 15F 9F / 91% NNW 15 G 24 MPH 4800 FT 16:1 / 6% 0.00" / 0.0" 0.06" / 1.2" 15 08 PM Fri Mar 07 2025 14F 8F / 100% N 13 G 23 MPH 4600 FT 16:1 / 6% 0.00" / 0.0" 0.06" / 1.2" 16 09 PM Fri Mar 07 2025 13F 9F / 88% N 15 G 26 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.06" / 1.2" 17 10 PM Fri Mar 07 2025 14F 9F / 85% N 17 G 28 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.06" / 1.2" 18 11 PM Fri Mar 07 2025 13F 9F / 80% NNE 18 G 27 MPH 4500 FT 14:1 / 7% 0.00" / 0.0" 0.06" / 1.2" 19 12 AM Sat Mar 08 2025 13F 9F / 79% N 18 G 29 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.06" / 1.2" 20 01 AM Sat Mar 08 2025 13F 10F / 78% N 19 G 30 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.06" / 1.2" 21 02 AM Sat Mar 08 2025 12F 9F / 81% N 19 G 31 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 22 03 AM Sat Mar 08 2025 12F 9F / 89% N 22 G 34 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.06" / 1.2" 23 04 AM Sat Mar 08 2025 13F 9F / 95% N 20 G 31 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.06" / 1.2" 24 05 AM Sat Mar 08 2025 13F 10F / 82% NNE 18 G 32 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 25 06 AM Sat Mar 08 2025 12F 11F / 64% NNE 17 G 29 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 26 07 AM Sat Mar 08 2025 11F 11F / 53% NNE 16 G 27 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 27 08 AM Sat Mar 08 2025 12F 12F / 50% NNE 15 G 25 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 28 09 AM Sat Mar 08 2025 15F 14F / 46% N 15 G 24 MPH 4400 FT 12:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 29 10 AM Sat Mar 08 2025 19F 15F / 48% N 14 G 22 MPH 4700 FT 12:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 30 11 AM Sat Mar 08 2025 22F 17F / 50% N 13 G 22 MPH 5100 FT 12:1 / 8% 0.00" / 0.0" 0.06" / 1.2" 31 12 PM Sat Mar 08 2025 24F 18F / 47% NNW 12 G 19 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.06" / 1.2" 32 01 PM Sat Mar 08 2025 26F 19F / 43% NNW 10 G 17 MPH 5200 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 33 02 PM Sat Mar 08 2025 27F 20F / 42% NNW 10 G 17 MPH 5300 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 34 03 PM Sat Mar 08 2025 25F 20F / 44% NNW 10 G 17 MPH 5500 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 35 04 PM Sat Mar 08 2025 23F 20F / 42% NNW 10 G 15 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 36 05 PM Sat Mar 08 2025 22F 21F / 42% NNW 11 G 16 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 37 06 PM Sat Mar 08 2025 23F 22F / 38% NNW 12 G 15 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 38 07 PM Sat Mar 08 2025 19F 20F / 38% NNW 12 G 16 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 39 08 PM Sat Mar 08 2025 19F 21F / 34% NW 12 G 16 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 40 09 PM Sat Mar 08 2025 19F 21F / 35% NW 13 G 18 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 1.2" 41 10 PM Sat Mar 08 2025 19F 20F / 34% NW 13 G 16 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2" 42 11 PM Sat Mar 08 2025 19F 21F / 35% NW 14 G 17 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2" 43 12 AM Sun Mar 09 2025 19F 21F / 34% NW 14 G 17 MPH 5200 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2" 44 01 AM Sun Mar 09 2025 20F 21F / 32% WNW 13 G 16 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2" 45 03 AM Sun Mar 09 2025 20F 22F / 33% WNW 14 G 16 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2" 46 04 AM Sun Mar 09 2025 21F 22F / 31% W 14 G 18 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2" 47 05 AM Sun Mar 09 2025 21F 22F / 32% W 14 G 18 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2" 48 06 AM Sun Mar 09 2025 21F 22F / 28% W 15 G 18 MPH 4900 FT 9:1 / 11% 0.00" / 0.0" 0.06" / 1.2"