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 02-Apr-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 AM Wed Apr 02 2025 8F 5F / 81% NW 10 G 14 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Apr 02 2025 8F 4F / 85% N 6 G 9 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Apr 02 2025 7F 4F / 85% NNE 5 G 6 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Apr 02 2025 9F 5F / 80% SSE 4 G 5 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Apr 02 2025 13F 7F / 71% SE 4 G 5 MPH 4400 FT 21:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Apr 02 2025 16F 8F / 79% NNE 2 G 2 MPH 4400 FT 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Apr 02 2025 18F 10F / 96% SSE 3 G 7 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Apr 02 2025 19F 11F / 95% SSE 5 G 10 MPH 4800 FT 21:1 / 5% 0.01" / 0.2" 0.01" / 0.2" 8 02 PM Wed Apr 02 2025 20F 12F / 83% SE 5 G 11 MPH 5000 FT 22:1 / 5% 0.02" / 0.4" 0.03" / 0.6" 9 03 PM Wed Apr 02 2025 21F 13F / 74% SE 4 G 10 MPH 5000 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 10 04 PM Wed Apr 02 2025 21F 12F / 82% N 4 G 9 MPH 4500 FT 23:1 / 4% 0.00" / 0.0" 0.03" / 0.6" 11 05 PM Wed Apr 02 2025 20F 11F / 84% NW 4 G 8 MPH 4500 FT 23:1 / 4% 0.00" / 0.0" 0.03" / 0.6" 12 06 PM Wed Apr 02 2025 19F 10F / 80% NNW 8 G 11 MPH 4600 FT 23:1 / 4% 0.00" / 0.0" 0.03" / 0.6" 13 07 PM Wed Apr 02 2025 17F 9F / 93% E 8 G 13 MPH 4800 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 14 08 PM Wed Apr 02 2025 14F 8F / 88% SE 6 G 7 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 15 09 PM Wed Apr 02 2025 12F 8F / 80% ESE 6 G 8 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 16 10 PM Wed Apr 02 2025 11F 7F / 76% ESE 6 G 8 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 17 11 PM Wed Apr 02 2025 11F 7F / 71% E 7 G 9 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 18 12 AM Thu Apr 03 2025 11F 7F / 64% ESE 8 G 11 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 19 01 AM Thu Apr 03 2025 11F 8F / 66% ESE 10 G 13 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 20 02 AM Thu Apr 03 2025 11F 8F / 69% SE 8 G 14 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 21 03 AM Thu Apr 03 2025 13F 9F / 77% SE 8 G 13 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.03" / 0.6" 22 04 AM Thu Apr 03 2025 13F 9F / 83% SSE 7 G 14 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.03" / 0.6" 23 05 AM Thu Apr 03 2025 13F 9F / 84% SE 6 G 12 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 24 06 AM Thu Apr 03 2025 13F 9F / 81% ESE 8 G 16 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 25 07 AM Thu Apr 03 2025 13F 8F / 79% SE 8 G 14 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 26 08 AM Thu Apr 03 2025 12F 8F / 77% ESE 8 G 14 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 27 09 AM Thu Apr 03 2025 13F 9F / 78% ESE 6 G 12 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 28 10 AM Thu Apr 03 2025 16F 10F / 82% ESE 6 G 12 MPH 4500 FT 21:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 29 11 AM Thu Apr 03 2025 18F 11F / 81% ENE 5 G 7 MPH 4800 FT 21:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 30 12 PM Thu Apr 03 2025 20F 13F / 79% E 4 G 9 MPH 4800 FT 21:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 31 01 PM Thu Apr 03 2025 22F 15F / 83% NNE 5 G 10 MPH 4800 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 32 02 PM Thu Apr 03 2025 23F 15F / 95% NW 5 G 9 MPH 5100 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.6" 33 03 PM Thu Apr 03 2025 23F 15F / 94% WSW 11 G 15 MPH 5000 FT 18:1 / 6% 0.05" / 0.9" 0.08" / 1.5" 34 04 PM Thu Apr 03 2025 22F 13F / 98% NW 12 G 21 MPH 5100 FT 18:1 / 6% 0.10" / 1.8" 0.18" / 3.3" 35 05 PM Thu Apr 03 2025 22F 14F / 97% NW 14 G 21 MPH 5200 FT 17:1 / 6% 0.03" / 0.5" 0.21" / 3.8" 36 06 PM Thu Apr 03 2025 21F 13F / 89% NW 11 G 17 MPH 5300 FT 18:1 / 6% 0.02" / 0.4" 0.23" / 4.2" 37 07 PM Thu Apr 03 2025 20F 13F / 90% NNW 12 G 19 MPH 5400 FT 18:1 / 6% 0.00" / 0.0" 0.23" / 4.2" 38 08 PM Thu Apr 03 2025 17F 12F / 93% NNW 11 G 19 MPH 5300 FT 18:1 / 6% 0.00" / 0.0" 0.23" / 4.2" 39 09 PM Thu Apr 03 2025 16F 11F / 90% NNW 11 G 18 MPH 5400 FT 19:1 / 5% 0.00" / 0.0" 0.23" / 4.2" 40 10 PM Thu Apr 03 2025 15F 11F / 94% NNE 10 G 16 MPH 5500 FT 19:1 / 5% 0.00" / 0.0" 0.23" / 4.2" 41 11 PM Thu Apr 03 2025 14F 12F / 80% NNE 10 G 13 MPH 5300 FT 21:1 / 5% 0.00" / 0.0" 0.23" / 4.2" 42 12 AM Fri Apr 04 2025 12F 10F / 80% NNE 10 G 14 MPH 5000 FT 20:1 / 5% 0.00" / 0.0" 0.23" / 4.2" 43 01 AM Fri Apr 04 2025 11F 9F / 77% NNE 12 G 18 MPH 4600 FT 19:1 / 5% 0.00" / 0.0" 0.23" / 4.2" 44 02 AM Fri Apr 04 2025 11F 10F / 72% NNW 13 G 18 MPH 4400 FT 17:1 / 6% 0.00" / 0.0" 0.23" / 4.2" 45 03 AM Fri Apr 04 2025 12F 10F / 65% N 14 G 19 MPH 4500 FT 18:1 / 6% 0.00" / 0.0" 0.23" / 4.2" 46 04 AM Fri Apr 04 2025 11F 9F / 62% N 13 G 19 MPH 4500 FT 18:1 / 6% 0.00" / 0.0" 0.23" / 4.2" 47 05 AM Fri Apr 04 2025 10F 8F / 72% N 13 G 21 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.23" / 4.2" 48 06 AM Fri Apr 04 2025 10F 7F / 71% N 13 G 21 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.23" / 4.2"