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 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 11 PM Sun Mar 02 2025 22F 15F / 76% S 15 G 34 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 12 AM Mon Mar 03 2025 20F 14F / 62% S 16 G 33 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 01 AM Mon Mar 03 2025 19F 14F / 61% S 17 G 34 MPH 5600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 3 02 AM Mon Mar 03 2025 18F 13F / 67% SSE 15 G 31 MPH 5300 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 4 03 AM Mon Mar 03 2025 18F 12F / 73% SSE 13 G 27 MPH 5100 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 5 04 AM Mon Mar 03 2025 16F 11F / 81% SSE 13 G 27 MPH 5000 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 6 05 AM Mon Mar 03 2025 16F 11F / 87% SE 10 G 20 MPH 4400 FT 17:1 / 6% 0.02" / 0.3" 0.02" / 0.3" 7 06 AM Mon Mar 03 2025 16F 10F / 88% SE 8 G 21 MPH ≤ KSLC 14:1 / 7% 0.03" / 0.4" 0.05" / 0.7" 8 07 AM Mon Mar 03 2025 15F 10F / 91% SE 9 G 15 MPH 4600 FT 17:1 / 6% 0.02" / 0.3" 0.07" / 1.0" 9 08 AM Mon Mar 03 2025 15F 10F / 87% SSE 7 G 13 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.07" / 1.0" 10 09 AM Mon Mar 03 2025 17F 10F / 92% S 5 G 9 MPH 4600 FT 20:1 / 5% 0.00" / 0.0" 0.07" / 1.0" 11 10 AM Mon Mar 03 2025 19F 10F / 90% ESE 2 G 6 MPH 4800 FT 21:1 / 5% 0.00" / 0.0" 0.07" / 1.0" 12 11 AM Mon Mar 03 2025 21F 12F / 93% WNW 3 G 6 MPH 4800 FT 23:1 / 4% 0.00" / 0.0" 0.07" / 1.0" 13 12 PM Mon Mar 03 2025 21F 13F / 96% WNW 7 G 14 MPH 5200 FT 23:1 / 4% 0.00" / 0.0" 0.07" / 1.0" 14 01 PM Mon Mar 03 2025 23F 15F / 96% WNW 12 G 19 MPH 5200 FT 17:1 / 6% 0.05" / 0.8" 0.12" / 1.8" 15 02 PM Mon Mar 03 2025 23F 15F / 92% NW 12 G 20 MPH 5200 FT 18:1 / 6% 0.05" / 0.9" 0.17" / 2.7" 16 03 PM Mon Mar 03 2025 23F 13F / 94% WNW 14 G 23 MPH 5600 FT 17:1 / 6% 0.00" / 0.0" 0.17" / 2.7" 17 04 PM Mon Mar 03 2025 23F 13F / 95% NW 16 G 25 MPH 5800 FT 16:1 / 6% 0.00" / 0.0" 0.17" / 2.7" 18 05 PM Mon Mar 03 2025 21F 12F / 95% NW 17 G 27 MPH 5700 FT 15:1 / 7% 0.00" / 0.0" 0.17" / 2.7" 19 06 PM Mon Mar 03 2025 20F 12F / 97% NNW 17 G 25 MPH 5900 FT 14:1 / 7% 0.00" / 0.0" 0.17" / 2.7" 20 07 PM Mon Mar 03 2025 19F 12F / 81% NW 19 G 33 MPH 5900 FT 14:1 / 7% 0.00" / 0.0" 0.17" / 2.7" 21 08 PM Mon Mar 03 2025 18F 11F / 93% NW 16 G 31 MPH 6100 FT 14:1 / 7% 0.00" / 0.0" 0.17" / 2.7" 22 09 PM Mon Mar 03 2025 17F 12F / 91% NNW 15 G 27 MPH 5800 FT 13:1 / 8% 0.00" / 0.0" 0.17" / 2.7" 23 10 PM Mon Mar 03 2025 18F 13F / 84% NW 26 G 42 MPH 5800 FT 12:1 / 8% 0.00" / 0.0" 0.17" / 2.7" 24 11 PM Mon Mar 03 2025 18F 12F / 91% NW 26 G 41 MPH 5600 FT 13:1 / 8% 0.00" / 0.0" 0.17" / 2.7" 25 12 AM Tue Mar 04 2025 18F 12F / 93% NW 28 G 43 MPH 5500 FT 13:1 / 8% 0.00" / 0.0" 0.17" / 2.7" 26 01 AM Tue Mar 04 2025 17F 12F / 93% NW 26 G 39 MPH 5500 FT 16:1 / 6% 0.00" / 0.0" 0.17" / 2.7" 27 02 AM Tue Mar 04 2025 18F 12F / 93% NW 24 G 37 MPH 5800 FT 15:1 / 7% 0.00" / 0.0" 0.17" / 2.7" 28 03 AM Tue Mar 04 2025 18F 13F / 99% NW 24 G 35 MPH 6000 FT 13:1 / 8% 0.00" / 0.0" 0.17" / 2.7" 29 04 AM Tue Mar 04 2025 18F 13F / 99% NW 24 G 37 MPH 6000 FT 12:1 / 8% 0.02" / 0.2" 0.19" / 2.9" 30 05 AM Tue Mar 04 2025 18F 12F / 99% NW 24 G 37 MPH 6000 FT 13:1 / 8% 0.02" / 0.3" 0.21" / 3.2" 31 06 AM Tue Mar 04 2025 18F 12F / 99% NW 23 G 35 MPH 5700 FT 14:1 / 7% 0.01" / 0.1" 0.22" / 3.3" 32 07 AM Tue Mar 04 2025 17F 12F / 99% NW 23 G 33 MPH 5500 FT 16:1 / 6% 0.01" / 0.2" 0.23" / 3.5" 33 08 AM Tue Mar 04 2025 17F 12F / 95% NW 23 G 35 MPH 5500 FT 14:1 / 7% 0.02" / 0.3" 0.25" / 3.8" 34 09 AM Tue Mar 04 2025 18F 11F / 95% NW 20 G 33 MPH 5400 FT 15:1 / 7% 0.00" / 0.0" 0.25" / 3.8" 35 10 AM Tue Mar 04 2025 20F 12F / 93% NW 20 G 29 MPH 5600 FT 16:1 / 6% 0.00" / 0.0" 0.25" / 3.8" 36 11 AM Tue Mar 04 2025 22F 13F / 90% NW 21 G 30 MPH 5600 FT 18:1 / 6% 0.00" / 0.0" 0.25" / 3.8" 37 12 PM Tue Mar 04 2025 23F 14F / 90% NW 20 G 29 MPH 5700 FT 19:1 / 5% 0.00" / 0.0" 0.25" / 3.8" 38 01 PM Tue Mar 04 2025 25F 15F / 95% NW 19 G 31 MPH 5800 FT 20:1 / 5% 0.00" / 0.0" 0.25" / 3.8" 39 02 PM Tue Mar 04 2025 25F 16F / 94% WNW 20 G 29 MPH 5500 FT 23:1 / 4% 0.00" / 0.0" 0.25" / 3.8" 40 03 PM Tue Mar 04 2025 24F 16F / 92% WNW 18 G 27 MPH 5500 FT 20:1 / 5% 0.01" / 0.2" 0.26" / 4.0" 41 04 PM Tue Mar 04 2025 23F 16F / 95% WNW 17 G 26 MPH 5800 FT 18:1 / 6% 0.00" / 0.0" 0.26" / 4.0" 42 05 PM Tue Mar 04 2025 22F 15F / 96% WNW 17 G 27 MPH 5900 FT 18:1 / 6% 0.00" / 0.0" 0.26" / 4.0" 43 06 PM Tue Mar 04 2025 21F 14F / 95% WNW 18 G 27 MPH 5900 FT 17:1 / 6% 0.00" / 0.0" 0.26" / 4.0" 44 07 PM Tue Mar 04 2025 19F 14F / 93% WNW 16 G 24 MPH 5900 FT 15:1 / 7% 0.00" / 0.0" 0.26" / 4.0" 45 08 PM Tue Mar 04 2025 17F 14F / 92% WNW 18 G 25 MPH 5800 FT 15:1 / 7% 0.00" / 0.0" 0.26" / 4.0" 46 09 PM Tue Mar 04 2025 17F 14F / 91% WNW 19 G 27 MPH 5800 FT 13:1 / 8% 0.00" / 0.0" 0.26" / 4.0" 47 10 PM Tue Mar 04 2025 17F 14F / 82% WNW 20 G 27 MPH 5700 FT 12:1 / 8% 0.00" / 0.0" 0.26" / 4.0" 48 11 PM Tue Mar 04 2025 16F 13F / 79% WNW 22 G 31 MPH 5600 FT 12:1 / 8% 0.00" / 0.0" 0.26" / 4.0"