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 03-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 PM Wed Apr 02 2025 19F 12F / 92% WNW 7 G 12 MPH 4800 FT 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Wed Apr 02 2025 17F 10F / 89% E 5 G 10 MPH 4700 FT 22:1 / 5% 0.03" / 0.7" 0.03" / 0.7" 2 08 PM Wed Apr 02 2025 16F 9F / 93% ESE 6 G 12 MPH 4900 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 3 09 PM Wed Apr 02 2025 13F 8F / 83% E 7 G 11 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 4 10 PM Wed Apr 02 2025 11F 8F / 75% E 7 G 12 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 5 11 PM Wed Apr 02 2025 11F 8F / 74% ESE 8 G 12 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 6 12 AM Thu Apr 03 2025 12F 8F / 75% ESE 8 G 12 MPH 4500 FT 20:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 7 01 AM Thu Apr 03 2025 12F 9F / 73% ESE 8 G 13 MPH 4500 FT 17:1 / 6% 0.00" / 0.0" 0.03" / 0.7" 8 02 AM Thu Apr 03 2025 12F 9F / 74% SE 10 G 16 MPH 4500 FT 19:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 9 03 AM Thu Apr 03 2025 13F 9F / 85% ESE 10 G 16 MPH 4500 FT 16:1 / 6% 0.00" / 0.0" 0.03" / 0.7" 10 04 AM Thu Apr 03 2025 13F 9F / 88% ESE 10 G 19 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.03" / 0.7" 11 05 AM Thu Apr 03 2025 13F 9F / 80% ESE 10 G 19 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.03" / 0.7" 12 06 AM Thu Apr 03 2025 13F 9F / 75% ESE 11 G 19 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.03" / 0.7" 13 07 AM Thu Apr 03 2025 12F 8F / 77% ESE 7 G 14 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.03" / 0.7" 14 08 AM Thu Apr 03 2025 12F 8F / 77% ESE 6 G 10 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 15 09 AM Thu Apr 03 2025 12F 8F / 77% E 5 G 9 MPH 4300 FT 20:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 16 10 AM Thu Apr 03 2025 16F 10F / 78% E 4 G 8 MPH 4600 FT 21:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 17 11 AM Thu Apr 03 2025 18F 11F / 80% E 4 G 6 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 18 12 PM Thu Apr 03 2025 20F 13F / 87% E 2 G 5 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 19 01 PM Thu Apr 03 2025 23F 15F / 95% N 3 G 7 MPH 4800 FT 22:1 / 5% 0.00" / 0.0" 0.03" / 0.7" 20 02 PM Thu Apr 03 2025 22F 14F / 95% NE 9 G 14 MPH 4900 FT 18:1 / 6% 0.00" / 0.0" 0.03" / 0.7" 21 03 PM Thu Apr 03 2025 23F 14F / 94% NW 11 G 17 MPH 5000 FT 18:1 / 6% 0.03" / 0.5" 0.06" / 1.2" 22 04 PM Thu Apr 03 2025 23F 14F / 96% NW 12 G 20 MPH 5100 FT 18:1 / 6% 0.05" / 0.9" 0.11" / 2.1" 23 05 PM Thu Apr 03 2025 23F 13F / 86% NW 13 G 20 MPH 5200 FT 17:1 / 6% 0.01" / 0.2" 0.12" / 2.3" 24 06 PM Thu Apr 03 2025 21F 14F / 83% ENE 11 G 14 MPH 5500 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 25 07 PM Thu Apr 03 2025 19F 12F / 84% NW 11 G 17 MPH 5500 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 26 08 PM Thu Apr 03 2025 16F 10F / 77% ESE 11 G 16 MPH 5200 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 27 09 PM Thu Apr 03 2025 14F 9F / 77% NNW 11 G 18 MPH 5200 FT 19:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 28 10 PM Thu Apr 03 2025 14F 10F / 76% NNW 11 G 17 MPH 5000 FT 19:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 29 11 PM Thu Apr 03 2025 13F 9F / 94% N 10 G 15 MPH 5000 FT 20:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 30 12 AM Fri Apr 04 2025 13F 9F / 95% NNW 12 G 19 MPH 5000 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 31 01 AM Fri Apr 04 2025 12F 9F / 86% NNW 12 G 18 MPH 4900 FT 19:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 32 02 AM Fri Apr 04 2025 12F 9F / 81% N 11 G 18 MPH 4800 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 33 03 AM Fri Apr 04 2025 12F 9F / 82% NNW 12 G 18 MPH 4700 FT 19:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 34 04 AM Fri Apr 04 2025 11F 8F / 71% NNW 13 G 19 MPH 4600 FT 19:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 35 05 AM Fri Apr 04 2025 10F 9F / 64% NNW 14 G 23 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 36 06 AM Fri Apr 04 2025 10F 8F / 66% NNW 13 G 20 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 37 07 AM Fri Apr 04 2025 10F 8F / 69% NNW 13 G 18 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 38 08 AM Fri Apr 04 2025 10F 8F / 64% N 12 G 21 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 39 09 AM Fri Apr 04 2025 11F 9F / 70% NNE 12 G 18 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 40 10 AM Fri Apr 04 2025 15F 12F / 73% NE 13 G 21 MPH 4600 FT 19:1 / 5% 0.00" / 0.0" 0.12" / 2.3" 41 11 AM Fri Apr 04 2025 20F 14F / 75% NE 12 G 20 MPH 4800 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 42 12 PM Fri Apr 04 2025 22F 15F / 72% NE 10 G 18 MPH 4900 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 43 01 PM Fri Apr 04 2025 23F 17F / 85% NNE 8 G 16 MPH 5000 FT 17:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 44 02 PM Fri Apr 04 2025 25F 18F / 86% NNW 10 G 16 MPH 5300 FT 17:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 45 03 PM Fri Apr 04 2025 26F 17F / 88% NNW 15 G 24 MPH 5500 FT 18:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 46 04 PM Fri Apr 04 2025 26F 17F / 83% NW 16 G 25 MPH 5700 FT 17:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 47 05 PM Fri Apr 04 2025 25F 17F / 79% NNW 14 G 24 MPH 5400 FT 17:1 / 6% 0.00" / 0.0" 0.12" / 2.3" 48 06 PM Fri Apr 04 2025 23F 17F / 84% NNW 16 G 23 MPH 5600 FT 16:1 / 6% 0.00" / 0.0" 0.12" / 2.3"