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-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 PM Sun Mar 02 2025 34F 26F / 67% SSE 14 G 33 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Sun Mar 02 2025 31F 24F / 69% SSE 13 G 32 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 07 PM Sun Mar 02 2025 28F 22F / 62% SW 17 G 34 MPH 7200 FT 12:1 / 8% 0.01" / 0.1" 0.01" / 0.1" 3 08 PM Sun Mar 02 2025 25F 19F / 67% SSW 19 G 40 MPH 6500 FT 8:1 / 12% 0.00" / 0.0" 0.01" / 0.1" 4 09 PM Sun Mar 02 2025 23F 17F / 68% SSW 15 G 36 MPH 6200 FT 10:1 / 10% 0.01" / 0.1" 0.02" / 0.2" 5 10 PM Sun Mar 02 2025 22F 15F / 75% S 13 G 33 MPH 6000 FT 10:1 / 10% 0.01" / 0.1" 0.03" / 0.3" 6 11 PM Sun Mar 02 2025 21F 15F / 68% S 14 G 33 MPH 5800 FT 11:1 / 9% 0.01" / 0.1" 0.04" / 0.4" 7 12 AM Mon Mar 03 2025 19F 14F / 58% S 15 G 35 MPH 5500 FT 11:1 / 9% 0.00" / 0.0" 0.04" / 0.4" 8 01 AM Mon Mar 03 2025 18F 13F / 53% S 18 G 36 MPH 5200 FT 13:1 / 8% 0.00" / 0.0" 0.04" / 0.4" 9 02 AM Mon Mar 03 2025 17F 11F / 65% SSE 17 G 35 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.04" / 0.4" 10 03 AM Mon Mar 03 2025 15F 11F / 87% SSE 13 G 28 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.04" / 0.4" 11 04 AM Mon Mar 03 2025 16F 11F / 92% SSE 13 G 27 MPH ≤ KSLC 15:1 / 7% 0.01" / 0.2" 0.05" / 0.6" 12 05 AM Mon Mar 03 2025 16F 10F / 86% SSE 12 G 24 MPH ≤ KSLC 13:1 / 8% 0.01" / 0.1" 0.06" / 0.7" 13 06 AM Mon Mar 03 2025 15F 9F / 84% SSE 9 G 22 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.06" / 0.7" 14 07 AM Mon Mar 03 2025 15F 9F / 93% SE 8 G 20 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.06" / 0.7" 15 08 AM Mon Mar 03 2025 15F 9F / 91% SE 7 G 17 MPH 4400 FT 18:1 / 6% 0.00" / 0.0" 0.06" / 0.7" 16 09 AM Mon Mar 03 2025 16F 10F / 87% ESE 5 G 14 MPH 4500 FT 18:1 / 6% 0.00" / 0.0" 0.06" / 0.7" 17 10 AM Mon Mar 03 2025 18F 11F / 79% ESE 5 G 10 MPH 4600 FT 21:1 / 5% 0.00" / 0.0" 0.06" / 0.7" 18 11 AM Mon Mar 03 2025 20F 12F / 84% NE 2 G 5 MPH 4700 FT 22:1 / 5% 0.00" / 0.0" 0.06" / 0.7" 19 12 PM Mon Mar 03 2025 23F 14F / 95% E 3 G 6 MPH 4900 FT 22:1 / 5% 0.00" / 0.0" 0.06" / 0.7" 20 01 PM Mon Mar 03 2025 23F 14F / 91% NNW 7 G 12 MPH 4900 FT 21:1 / 5% 0.02" / 0.4" 0.08" / 1.1" 21 02 PM Mon Mar 03 2025 23F 14F / 89% WNW 8 G 16 MPH 5000 FT 18:1 / 6% 0.18" / 3.2" 0.26" / 4.3" 22 03 PM Mon Mar 03 2025 23F 12F / 95% NW 14 G 29 MPH 5300 FT 14:1 / 7% 0.12" / 1.7" 0.38" / 6.0" 23 04 PM Mon Mar 03 2025 22F 12F / 94% NW 17 G 29 MPH 5600 FT 14:1 / 7% 0.03" / 0.4" 0.41" / 6.4" 24 05 PM Mon Mar 03 2025 20F 11F / 93% NW 20 G 33 MPH 5600 FT 13:1 / 8% 0.02" / 0.3" 0.43" / 6.7" 25 06 PM Mon Mar 03 2025 18F 10F / 91% NW 24 G 40 MPH 5600 FT 13:1 / 8% 0.00" / 0.0" 0.43" / 6.7" 26 07 PM Mon Mar 03 2025 18F 10F / 87% NW 25 G 42 MPH 5800 FT 14:1 / 7% 0.00" / 0.0" 0.43" / 6.7" 27 08 PM Mon Mar 03 2025 18F 11F / 84% NW 23 G 37 MPH 5900 FT 17:1 / 6% 0.00" / 0.0" 0.43" / 6.7" 28 09 PM Mon Mar 03 2025 18F 12F / 84% NW 25 G 39 MPH 5700 FT 13:1 / 8% 0.00" / 0.0" 0.43" / 6.7" 29 10 PM Mon Mar 03 2025 18F 11F / 88% NW 26 G 40 MPH 5600 FT 14:1 / 7% 0.00" / 0.0" 0.43" / 6.7" 30 11 PM Mon Mar 03 2025 18F 11F / 85% NW 25 G 39 MPH 5500 FT 12:1 / 8% 0.00" / 0.0" 0.43" / 6.7" 31 12 AM Tue Mar 04 2025 16F 11F / 92% NW 26 G 38 MPH 5600 FT 13:1 / 8% 0.00" / 0.0" 0.43" / 6.7" 32 01 AM Tue Mar 04 2025 17F 12F / 94% NW 24 G 35 MPH 5700 FT 17:1 / 6% 0.00" / 0.0" 0.43" / 6.7" 33 02 AM Tue Mar 04 2025 18F 12F / 99% NW 23 G 35 MPH 5600 FT 13:1 / 8% 0.00" / 0.0" 0.43" / 6.7" 34 03 AM Tue Mar 04 2025 18F 12F / 100% NW 22 G 33 MPH 5700 FT 14:1 / 7% 0.00" / 0.0" 0.43" / 6.7" 35 04 AM Tue Mar 04 2025 18F 12F / 94% NW 25 G 39 MPH 5800 FT 13:1 / 8% 0.06" / 0.8" 0.49" / 7.5" 36 05 AM Tue Mar 04 2025 18F 13F / 97% NW 23 G 36 MPH 5600 FT 14:1 / 7% 0.03" / 0.4" 0.52" / 7.9" 37 06 AM Tue Mar 04 2025 18F 13F / 95% NW 23 G 32 MPH 5500 FT 14:1 / 7% 0.03" / 0.4" 0.55" / 8.3" 38 07 AM Tue Mar 04 2025 18F 13F / 95% NW 23 G 35 MPH 5500 FT 15:1 / 7% 0.02" / 0.3" 0.57" / 8.6" 39 08 AM Tue Mar 04 2025 18F 12F / 95% NW 23 G 34 MPH 5400 FT 14:1 / 7% 0.01" / 0.1" 0.58" / 8.7" 40 09 AM Tue Mar 04 2025 18F 12F / 95% NW 21 G 32 MPH 5300 FT 14:1 / 7% 0.01" / 0.1" 0.59" / 8.8" 41 10 AM Tue Mar 04 2025 20F 12F / 94% NW 21 G 31 MPH 5500 FT 15:1 / 7% 0.00" / 0.0" 0.59" / 8.8" 42 11 AM Tue Mar 04 2025 21F 13F / 87% NW 20 G 31 MPH 5400 FT 18:1 / 6% 0.00" / 0.0" 0.59" / 8.8" 43 12 PM Tue Mar 04 2025 23F 15F / 91% WNW 18 G 29 MPH 5300 FT 17:1 / 6% 0.01" / 0.2" 0.60" / 9.0" 44 01 PM Tue Mar 04 2025 25F 16F / 91% WNW 18 G 27 MPH 5400 FT 21:1 / 5% 0.01" / 0.2" 0.61" / 9.2" 45 02 PM Tue Mar 04 2025 25F 15F / 90% WNW 19 G 28 MPH 5700 FT 21:1 / 5% 0.00" / 0.0" 0.61" / 9.2" 46 03 PM Tue Mar 04 2025 24F 15F / 96% WNW 19 G 29 MPH 5600 FT 23:1 / 4% 0.00" / 0.0" 0.61" / 9.2" 47 04 PM Tue Mar 04 2025 23F 15F / 92% WNW 20 G 32 MPH 5700 FT 21:1 / 5% 0.00" / 0.0" 0.61" / 9.2" 48 05 PM Tue Mar 04 2025 22F 15F / 90% WNW 21 G 32 MPH 5800 FT 16:1 / 6% 0.00" / 0.0" 0.61" / 9.2"