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 06Z 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 12 AM Wed Apr 02 2025 8F 4F / 86% WNW 20 G 29 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Wed Apr 02 2025 9F 4F / 88% WNW 16 G 24 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Wed Apr 02 2025 8F 4F / 89% WNW 14 G 20 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Wed Apr 02 2025 7F 3F / 85% WNW 13 G 17 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Wed Apr 02 2025 7F 4F / 85% WNW 12 G 17 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Wed Apr 02 2025 7F 3F / 86% NW 15 G 20 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Wed Apr 02 2025 7F 3F / 93% NW 12 G 17 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Wed Apr 02 2025 6F 2F / 88% NW 12 G 17 MPH ≤ KSLC 24:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Wed Apr 02 2025 7F 3F / 88% NW 10 G 14 MPH ≤ KSLC 24:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Wed Apr 02 2025 8F 3F / 83% NW 8 G 12 MPH ≤ KSLC 25:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Wed Apr 02 2025 12F 5F / 89% NW 7 G 10 MPH 4400 FT 25:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Wed Apr 02 2025 14F 6F / 88% ESE 4 G 5 MPH 4300 FT 25:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Wed Apr 02 2025 18F 9F / 92% WSW 6 G 9 MPH 4300 FT 23:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Wed Apr 02 2025 18F 10F / 93% NW 5 G 9 MPH 4500 FT 22:1 / 5% 0.02" / 0.4" 0.02" / 0.4" 14 02 PM Wed Apr 02 2025 18F 11F / 94% NNE 5 G 11 MPH 4500 FT 22:1 / 5% 0.04" / 0.9" 0.06" / 1.3" 15 03 PM Wed Apr 02 2025 20F 12F / 83% NNW 7 G 11 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.06" / 1.3" 16 04 PM Wed Apr 02 2025 20F 11F / 84% NW 4 G 9 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.06" / 1.3" 17 05 PM Wed Apr 02 2025 20F 11F / 90% NNW 5 G 8 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.06" / 1.3" 18 06 PM Wed Apr 02 2025 18F 10F / 92% N 3 G 6 MPH 4400 FT 21:1 / 5% 0.00" / 0.0" 0.06" / 1.3" 19 07 PM Wed Apr 02 2025 17F 9F / 87% N 7 G 11 MPH 4500 FT 22:1 / 5% 0.05" / 1.1" 0.11" / 2.4" 20 08 PM Wed Apr 02 2025 15F 8F / 92% ENE 6 G 8 MPH 4500 FT 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 21 09 PM Wed Apr 02 2025 11F 6F / 79% E 8 G 12 MPH 4500 FT 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 22 10 PM Wed Apr 02 2025 9F 6F / 71% ESE 8 G 12 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 23 11 PM Wed Apr 02 2025 10F 7F / 70% SE 9 G 13 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 24 12 AM Thu Apr 03 2025 10F 8F / 65% SE 8 G 10 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 25 01 AM Thu Apr 03 2025 11F 8F / 61% SSE 7 G 10 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 26 02 AM Thu Apr 03 2025 11F 8F / 61% SE 8 G 10 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 27 03 AM Thu Apr 03 2025 10F 7F / 64% ESE 7 G 10 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 28 04 AM Thu Apr 03 2025 10F 7F / 71% ESE 9 G 12 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 29 05 AM Thu Apr 03 2025 10F 8F / 75% ESE 8 G 11 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 30 06 AM Thu Apr 03 2025 10F 7F / 74% SE 8 G 11 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 31 07 AM Thu Apr 03 2025 10F 7F / 74% SSE 7 G 10 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 32 08 AM Thu Apr 03 2025 10F 7F / 72% ESE 7 G 12 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 33 09 AM Thu Apr 03 2025 11F 8F / 75% SE 7 G 9 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 34 10 AM Thu Apr 03 2025 15F 10F / 77% WSW 6 G 8 MPH 4400 FT 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 35 11 AM Thu Apr 03 2025 18F 11F / 81% SE 5 G 7 MPH 4500 FT 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 36 12 PM Thu Apr 03 2025 21F 13F / 83% NW 4 G 7 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 37 01 PM Thu Apr 03 2025 23F 16F / 87% N 4 G 10 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.11" / 2.4" 38 02 PM Thu Apr 03 2025 22F 15F / 93% NW 9 G 15 MPH 4800 FT 20:1 / 5% 0.01" / 0.2" 0.12" / 2.6" 39 03 PM Thu Apr 03 2025 24F 16F / 94% WNW 10 G 15 MPH 4800 FT 21:1 / 5% 0.07" / 1.5" 0.19" / 4.1" 40 04 PM Thu Apr 03 2025 24F 16F / 91% WNW 10 G 18 MPH 5000 FT 18:1 / 6% 0.03" / 0.5" 0.22" / 4.6" 41 05 PM Thu Apr 03 2025 24F 16F / 85% NW 11 G 20 MPH 5000 FT 19:1 / 5% 0.00" / 0.0" 0.22" / 4.6" 42 06 PM Thu Apr 03 2025 23F 15F / 82% WNW 11 G 18 MPH 5200 FT 19:1 / 5% 0.00" / 0.0" 0.22" / 4.6" 43 07 PM Thu Apr 03 2025 21F 14F / 87% WNW 11 G 17 MPH 5400 FT 20:1 / 5% 0.00" / 0.0" 0.22" / 4.6" 44 08 PM Thu Apr 03 2025 19F 13F / 89% NW 11 G 15 MPH 5200 FT 20:1 / 5% 0.00" / 0.0" 0.22" / 4.6" 45 09 PM Thu Apr 03 2025 17F 12F / 84% NW 12 G 16 MPH 5000 FT 19:1 / 5% 0.01" / 0.2" 0.23" / 4.8" 46 10 PM Thu Apr 03 2025 15F 11F / 83% N 11 G 18 MPH 4800 FT 20:1 / 5% 0.01" / 0.2" 0.24" / 5.0" 47 11 PM Thu Apr 03 2025 12F 11F / 81% NNW 11 G 16 MPH 4800 FT 21:1 / 5% 0.00" / 0.0" 0.24" / 5.0" 48 12 AM Fri Apr 04 2025 12F 9F / 80% NNW 10 G 17 MPH 4800 FT 20:1 / 5% 0.00" / 0.0" 0.24" / 5.0"