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 04-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 Mon Mar 03 2025 22F 14F / 86% WNW 22 G 35 MPH 5800 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Mon Mar 03 2025 19F 12F / 88% WNW 20 G 30 MPH 5900 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 2 07 PM Mon Mar 03 2025 19F 12F / 86% NW 23 G 36 MPH 5700 FT 15:1 / 7% 0.07" / 1.0" 0.07" / 1.0" 3 08 PM Mon Mar 03 2025 18F 11F / 91% NW 22 G 36 MPH 5700 FT 16:1 / 6% 0.00" / 0.0" 0.07" / 1.0" 4 09 PM Mon Mar 03 2025 18F 12F / 96% NW 24 G 39 MPH 5600 FT 16:1 / 6% 0.00" / 0.0" 0.07" / 1.0" 5 10 PM Mon Mar 03 2025 19F 12F / 93% NW 23 G 38 MPH 5900 FT 16:1 / 6% 0.00" / 0.0" 0.07" / 1.0" 6 11 PM Mon Mar 03 2025 19F 13F / 100% NW 24 G 40 MPH 5900 FT 13:1 / 8% 0.01" / 0.1" 0.08" / 1.1" 7 12 AM Tue Mar 04 2025 19F 13F / 97% NW 27 G 41 MPH 6000 FT 12:1 / 8% 0.01" / 0.1" 0.09" / 1.2" 8 01 AM Tue Mar 04 2025 20F 14F / 97% NW 26 G 38 MPH 6100 FT 14:1 / 7% 0.00" / 0.0" 0.09" / 1.2" 9 02 AM Tue Mar 04 2025 20F 14F / 95% NW 27 G 42 MPH 6100 FT 13:1 / 8% 0.01" / 0.1" 0.10" / 1.3" 10 03 AM Tue Mar 04 2025 19F 13F / 98% NW 26 G 39 MPH 6200 FT 15:1 / 7% 0.00" / 0.0" 0.10" / 1.3" 11 04 AM Tue Mar 04 2025 19F 12F / 96% NW 26 G 40 MPH 6100 FT 15:1 / 7% 0.00" / 0.0" 0.10" / 1.3" 12 05 AM Tue Mar 04 2025 19F 13F / 96% WNW 24 G 36 MPH 5900 FT 14:1 / 7% 0.00" / 0.0" 0.10" / 1.3" 13 06 AM Tue Mar 04 2025 18F 12F / 94% WNW 23 G 35 MPH 5700 FT 15:1 / 7% 0.00" / 0.0" 0.10" / 1.3" 14 07 AM Tue Mar 04 2025 18F 12F / 94% NW 21 G 31 MPH 5600 FT 15:1 / 7% 0.00" / 0.0" 0.10" / 1.3" 15 08 AM Tue Mar 04 2025 18F 12F / 100% NW 21 G 31 MPH 5400 FT 15:1 / 7% 0.05" / 0.8" 0.15" / 2.1" 16 09 AM Tue Mar 04 2025 18F 12F / 96% NW 21 G 34 MPH 5500 FT 17:1 / 6% 0.02" / 0.3" 0.17" / 2.4" 17 10 AM Tue Mar 04 2025 19F 12F / 100% NW 19 G 29 MPH 5800 FT 23:1 / 4% 0.00" / 0.0" 0.17" / 2.4" 18 11 AM Tue Mar 04 2025 21F 12F / 98% WNW 18 G 28 MPH 5800 FT 19:1 / 5% 0.01" / 0.2" 0.18" / 2.6" 19 12 PM Tue Mar 04 2025 23F 13F / 99% WNW 19 G 28 MPH 5700 FT 23:1 / 4% 0.00" / 0.0" 0.18" / 2.6" 20 01 PM Tue Mar 04 2025 24F 14F / 97% WNW 16 G 25 MPH 5700 FT 22:1 / 5% 0.00" / 0.0" 0.18" / 2.6" 21 02 PM Tue Mar 04 2025 25F 15F / 96% WNW 14 G 22 MPH 5700 FT 18:1 / 6% 0.05" / 0.9" 0.23" / 3.5" 22 03 PM Tue Mar 04 2025 24F 15F / 91% WNW 18 G 26 MPH 5700 FT 13:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 23 04 PM Tue Mar 04 2025 22F 15F / 98% WNW 18 G 26 MPH 5600 FT 15:1 / 7% 0.00" / 0.0" 0.23" / 3.5" 24 05 PM Tue Mar 04 2025 20F 13F / 100% WNW 18 G 27 MPH 5500 FT 17:1 / 6% 0.00" / 0.0" 0.23" / 3.5" 25 06 PM Tue Mar 04 2025 19F 14F / 87% WNW 20 G 28 MPH 5800 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 26 07 PM Tue Mar 04 2025 17F 13F / 73% WNW 21 G 31 MPH 5500 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 3.5" 27 08 PM Tue Mar 04 2025 16F 13F / 73% WNW 22 G 32 MPH 5600 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 3.5" 28 09 PM Tue Mar 04 2025 15F 13F / 77% WNW 22 G 33 MPH 5600 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 29 10 PM Tue Mar 04 2025 16F 13F / 73% WNW 23 G 31 MPH 5500 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 3.5" 30 11 PM Tue Mar 04 2025 16F 13F / 74% WNW 23 G 33 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 3.5" 31 12 AM Wed Mar 05 2025 16F 13F / 75% WNW 24 G 35 MPH 5200 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 3.5" 32 01 AM Wed Mar 05 2025 16F 13F / 78% WNW 24 G 33 MPH 5200 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 33 02 AM Wed Mar 05 2025 17F 14F / 75% WNW 22 G 32 MPH 5100 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 34 03 AM Wed Mar 05 2025 17F 14F / 75% WNW 21 G 31 MPH 5200 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 35 04 AM Wed Mar 05 2025 17F 14F / 74% WNW 19 G 27 MPH 5200 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 36 05 AM Wed Mar 05 2025 17F 14F / 72% WNW 17 G 24 MPH 5200 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 37 06 AM Wed Mar 05 2025 17F 14F / 70% WNW 15 G 20 MPH 5100 FT 13:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 38 07 AM Wed Mar 05 2025 16F 15F / 67% W 15 G 21 MPH 5100 FT 13:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 39 08 AM Wed Mar 05 2025 18F 15F / 68% W 12 G 19 MPH 4900 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 40 09 AM Wed Mar 05 2025 18F 17F / 69% WSW 13 G 19 MPH 4800 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 41 10 AM Wed Mar 05 2025 23F 19F / 64% SW 14 G 22 MPH 5100 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 42 11 AM Wed Mar 05 2025 26F 21F / 62% SSW 13 G 23 MPH 5500 FT 12:1 / 8% 0.00" / 0.0" 0.23" / 3.5" 43 12 PM Wed Mar 05 2025 28F 22F / 61% SSW 14 G 28 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 3.5" 44 01 PM Wed Mar 05 2025 29F 23F / 65% S 13 G 27 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.23" / 3.5" 45 02 PM Wed Mar 05 2025 29F 23F / 69% S 14 G 31 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 3.5" 46 03 PM Wed Mar 05 2025 28F 22F / 77% S 13 G 31 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.23" / 3.5" 47 04 PM Wed Mar 05 2025 26F 20F / 86% S 13 G 34 MPH 6600 FT 7:1 / 14% 0.02" / 0.1" 0.25" / 3.6" 48 05 PM Wed Mar 05 2025 26F 21F / 91% S 16 G 35 MPH 6900 FT 7:1 / 14% 0.04" / 0.3" 0.29" / 3.9"