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 20-Feb-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 Wed Feb 19 2025 25F 19F / 100% W 19 G 30 MPH 5000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Wed Feb 19 2025 22F 19F / 83% W 21 G 32 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 07 PM Wed Feb 19 2025 21F 19F / 84% W 24 G 37 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 08 PM Wed Feb 19 2025 22F 19F / 82% WNW 24 G 35 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 09 PM Wed Feb 19 2025 23F 20F / 72% W 20 G 29 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 10 PM Wed Feb 19 2025 24F 20F / 67% W 16 G 24 MPH 5400 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 11 PM Wed Feb 19 2025 20F 17F / 94% WSW 16 G 26 MPH 5500 FT 12:1 / 8% 0.01" / 0.1" 0.01" / 0.1" 7 12 AM Thu Feb 20 2025 21F 17F / 98% SSW 15 G 29 MPH 5500 FT 11:1 / 9% 0.03" / 0.3" 0.04" / 0.4" 8 01 AM Thu Feb 20 2025 23F 18F / 89% SSW 21 G 40 MPH 5400 FT 10:1 / 10% 0.06" / 0.6" 0.10" / 1.0" 9 02 AM Thu Feb 20 2025 24F 19F / 98% SW 23 G 40 MPH 5600 FT 10:1 / 10% 0.01" / 0.1" 0.11" / 1.1" 10 03 AM Thu Feb 20 2025 23F 18F / 99% WSW 18 G 31 MPH 5600 FT 12:1 / 8% 0.01" / 0.1" 0.12" / 1.2" 11 04 AM Thu Feb 20 2025 21F 16F / 98% W 18 G 28 MPH 4300 FT 13:1 / 8% 0.01" / 0.1" 0.13" / 1.3" 12 05 AM Thu Feb 20 2025 21F 15F / 99% WNW 13 G 21 MPH 4300 FT 15:1 / 7% 0.00" / 0.0" 0.13" / 1.3" 13 06 AM Thu Feb 20 2025 19F 14F / 96% W 13 G 21 MPH 4500 FT 13:1 / 8% 0.02" / 0.3" 0.15" / 1.6" 14 07 AM Thu Feb 20 2025 18F 13F / 99% WNW 18 G 26 MPH 4500 FT 13:1 / 8% 0.04" / 0.5" 0.19" / 2.1" 15 08 AM Thu Feb 20 2025 18F 12F / 98% WNW 21 G 31 MPH 4700 FT 13:1 / 8% 0.05" / 0.6" 0.24" / 2.7" 16 09 AM Thu Feb 20 2025 18F 13F / 96% NW 19 G 29 MPH 4800 FT 14:1 / 7% 0.02" / 0.3" 0.26" / 3.0" 17 10 AM Thu Feb 20 2025 19F 13F / 92% WNW 20 G 30 MPH 4700 FT 13:1 / 8% 0.01" / 0.1" 0.27" / 3.1" 18 11 AM Thu Feb 20 2025 19F 14F / 94% NW 20 G 31 MPH 4500 FT 14:1 / 7% 0.01" / 0.1" 0.28" / 3.2" 19 12 PM Thu Feb 20 2025 20F 14F / 95% WNW 18 G 30 MPH 4400 FT 13:1 / 8% 0.02" / 0.3" 0.30" / 3.5" 20 01 PM Thu Feb 20 2025 21F 13F / 95% WNW 21 G 31 MPH 4500 FT 13:1 / 8% 0.01" / 0.1" 0.31" / 3.6" 21 02 PM Thu Feb 20 2025 21F 14F / 95% WNW 20 G 31 MPH 4400 FT 13:1 / 8% 0.01" / 0.1" 0.32" / 3.7" 22 03 PM Thu Feb 20 2025 20F 13F / 96% WNW 18 G 28 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.32" / 3.7" 23 04 PM Thu Feb 20 2025 18F 12F / 95% NW 17 G 29 MPH 4600 FT 15:1 / 7% 0.00" / 0.0" 0.32" / 3.7" 24 05 PM Thu Feb 20 2025 17F 11F / 94% NW 20 G 31 MPH 4700 FT 14:1 / 7% 0.01" / 0.1" 0.33" / 3.8" 25 06 PM Thu Feb 20 2025 16F 10F / 93% NW 18 G 34 MPH 4600 FT 12:1 / 8% 0.01" / 0.1" 0.34" / 3.9" 26 07 PM Thu Feb 20 2025 15F 10F / 92% NW 22 G 35 MPH 4500 FT 13:1 / 8% 0.01" / 0.1" 0.35" / 4.0" 27 08 PM Thu Feb 20 2025 15F 10F / 93% NW 21 G 33 MPH 4500 FT 14:1 / 7% 0.02" / 0.3" 0.37" / 4.3" 28 09 PM Thu Feb 20 2025 16F 10F / 95% NW 20 G 32 MPH 4500 FT 14:1 / 7% 0.01" / 0.1" 0.38" / 4.4" 29 10 PM Thu Feb 20 2025 15F 11F / 94% NW 18 G 29 MPH 4500 FT 15:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 30 11 PM Thu Feb 20 2025 15F 10F / 96% NW 14 G 27 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.38" / 4.4" 31 12 AM Fri Feb 21 2025 15F 10F / 96% SE 16 G 24 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.38" / 4.4" 32 01 AM Fri Feb 21 2025 13F 11F / 85% NW 15 G 22 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 33 02 AM Fri Feb 21 2025 13F 10F / 89% NW 16 G 23 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 34 03 AM Fri Feb 21 2025 12F 9F / 89% NW 16 G 22 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 35 04 AM Fri Feb 21 2025 12F 9F / 87% NW 14 G 20 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 36 05 AM Fri Feb 21 2025 12F 9F / 88% NW 13 G 19 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.38" / 4.4" 37 06 AM Fri Feb 21 2025 11F 10F / 85% NW 15 G 22 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 38 07 AM Fri Feb 21 2025 11F 10F / 76% NW 15 G 22 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 39 08 AM Fri Feb 21 2025 11F 11F / 60% NW 15 G 20 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.38" / 4.4" 40 09 AM Fri Feb 21 2025 12F 12F / 65% NW 14 G 19 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.38" / 4.4" 41 10 AM Fri Feb 21 2025 16F 14F / 65% ESE 13 G 19 MPH 4300 FT 14:1 / 7% 0.00" / 0.0" 0.38" / 4.4" 42 11 AM Fri Feb 21 2025 20F 16F / 58% NW 12 G 18 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.38" / 4.4" 43 12 PM Fri Feb 21 2025 24F 18F / 51% WNW 12 G 15 MPH 4700 FT 12:1 / 8% 0.00" / 0.0" 0.38" / 4.4" 44 01 PM Fri Feb 21 2025 21F 16F / 73% WNW 9 G 13 MPH 4800 FT 12:1 / 8% 0.00" / 0.0" 0.38" / 4.4" 45 02 PM Fri Feb 21 2025 25F 18F / 68% WNW 10 G 14 MPH 4900 FT 13:1 / 8% 0.00" / 0.0" 0.38" / 4.4" 46 03 PM Fri Feb 21 2025 20F 17F / 62% WNW 11 G 16 MPH 5100 FT 12:1 / 8% 0.00" / 0.0" 0.38" / 4.4" 47 04 PM Fri Feb 21 2025 19F 17F / 64% WNW 7 G 14 MPH 5000 FT 13:1 / 8% 0.00" / 0.0" 0.38" / 4.4" 48 05 PM Fri Feb 21 2025 20F 17F / 60% WNW 11 G 20 MPH 4900 FT 12:1 / 8% 0.00" / 0.0" 0.38" / 4.4"