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 12Z 16-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 AM Sun Feb 16 2025 16F 13F / 93% WNW 28 G 43 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Sun Feb 16 2025 16F 15F / 79% WNW 29 G 43 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Sun Feb 16 2025 17F 15F / 80% WNW 27 G 40 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Sun Feb 16 2025 18F 15F / 83% WNW 27 G 40 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Sun Feb 16 2025 20F 17F / 84% W 26 G 39 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Sun Feb 16 2025 23F 18F / 81% W 27 G 43 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Sun Feb 16 2025 24F 18F / 84% WSW 25 G 42 MPH 4300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Sun Feb 16 2025 26F 19F / 88% WSW 27 G 44 MPH 4600 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1" 8 01 PM Sun Feb 16 2025 26F 18F / 90% WSW 27 G 47 MPH 5000 FT 7:1 / 14% 0.01" / 0.1" 0.02" / 0.2" 9 02 PM Sun Feb 16 2025 25F 17F / 90% WSW 27 G 46 MPH 5500 FT 7:1 / 14% 0.02" / 0.1" 0.04" / 0.3" 10 03 PM Sun Feb 16 2025 24F 17F / 91% WSW 28 G 46 MPH 5700 FT 7:1 / 14% 0.04" / 0.3" 0.08" / 0.6" 11 04 PM Sun Feb 16 2025 24F 17F / 94% WSW 26 G 45 MPH 5800 FT 8:1 / 12% 0.05" / 0.4" 0.13" / 1.0" 12 05 PM Sun Feb 16 2025 23F 17F / 95% W 29 G 47 MPH 5900 FT 9:1 / 11% 0.08" / 0.7" 0.21" / 1.7" 13 06 PM Sun Feb 16 2025 23F 17F / 98% W 27 G 44 MPH 6500 FT 10:1 / 10% 0.02" / 0.2" 0.23" / 1.9" 14 07 PM Sun Feb 16 2025 23F 17F / 100% W 27 G 43 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.23" / 1.9" 15 08 PM Sun Feb 16 2025 23F 17F / 100% W 26 G 42 MPH 6500 FT 11:1 / 9% 0.03" / 0.3" 0.26" / 2.2" 16 09 PM Sun Feb 16 2025 24F 17F / 96% W 28 G 44 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.26" / 2.2" 17 10 PM Sun Feb 16 2025 24F 17F / 100% W 29 G 46 MPH 6900 FT 12:1 / 8% 0.00" / 0.0" 0.26" / 2.2" 18 11 PM Sun Feb 16 2025 23F 16F / 99% W 29 G 45 MPH 6900 FT 11:1 / 9% 0.00" / 0.0" 0.26" / 2.2" 19 12 AM Mon Feb 17 2025 23F 16F / 97% W 27 G 44 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.26" / 2.2" 20 01 AM Mon Feb 17 2025 23F 16F / 98% W 29 G 47 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.26" / 2.2" 21 02 AM Mon Feb 17 2025 22F 16F / 96% W 27 G 45 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.26" / 2.2" 22 03 AM Mon Feb 17 2025 22F 15F / 88% W 25 G 42 MPH 6300 FT 13:1 / 8% 0.00" / 0.0" 0.26" / 2.2" 23 04 AM Mon Feb 17 2025 21F 15F / 99% WSW 23 G 36 MPH 6100 FT 13:1 / 8% 0.00" / 0.0" 0.26" / 2.2" 24 05 AM Mon Feb 17 2025 20F 14F / 100% WSW 23 G 35 MPH 5800 FT 13:1 / 8% 0.02" / 0.3" 0.28" / 2.5" 25 06 AM Mon Feb 17 2025 19F 13F / 96% W 25 G 39 MPH 5700 FT 13:1 / 8% 0.08" / 1.0" 0.36" / 3.5" 26 07 AM Mon Feb 17 2025 18F 11F / 93% W 27 G 42 MPH 5900 FT 16:1 / 6% 0.00" / 0.0" 0.36" / 3.5" 27 08 AM Mon Feb 17 2025 17F 10F / 93% W 26 G 42 MPH 5100 FT 14:1 / 7% 0.00" / 0.0" 0.36" / 3.5" 28 09 AM Mon Feb 17 2025 16F 9F / 91% W 24 G 38 MPH 4800 FT 17:1 / 6% 0.00" / 0.0" 0.36" / 3.5" 29 10 AM Mon Feb 17 2025 17F 10F / 90% W 22 G 34 MPH 4900 FT 17:1 / 6% 0.00" / 0.0" 0.36" / 3.5" 30 11 AM Mon Feb 17 2025 19F 10F / 90% W 21 G 32 MPH 4900 FT 16:1 / 6% 0.00" / 0.0" 0.36" / 3.5" 31 12 PM Mon Feb 17 2025 21F 12F / 92% W 20 G 31 MPH 5100 FT 16:1 / 6% 0.00" / 0.0" 0.36" / 3.5" 32 01 PM Mon Feb 17 2025 21F 13F / 90% W 19 G 31 MPH 5200 FT 17:1 / 6% 0.01" / 0.2" 0.37" / 3.7" 33 02 PM Mon Feb 17 2025 21F 12F / 92% W 19 G 31 MPH 5000 FT 17:1 / 6% 0.01" / 0.2" 0.38" / 3.9" 34 03 PM Mon Feb 17 2025 22F 11F / 94% W 21 G 31 MPH 5100 FT 16:1 / 6% 0.01" / 0.2" 0.39" / 4.1" 35 04 PM Mon Feb 17 2025 21F 11F / 93% W 21 G 34 MPH 5200 FT 15:1 / 7% 0.00" / 0.0" 0.39" / 4.1" 36 05 PM Mon Feb 17 2025 19F 10F / 93% W 22 G 35 MPH 5000 FT 13:1 / 8% 0.00" / 0.0" 0.39" / 4.1" 37 06 PM Mon Feb 17 2025 18F 11F / 94% W 21 G 34 MPH 5100 FT 13:1 / 8% 0.00" / 0.0" 0.39" / 4.1" 38 07 PM Mon Feb 17 2025 17F 10F / 94% W 21 G 33 MPH 5000 FT 14:1 / 7% 0.00" / 0.0" 0.39" / 4.1" 39 08 PM Mon Feb 17 2025 15F 10F / 90% W 24 G 35 MPH 4900 FT 15:1 / 7% 0.00" / 0.0" 0.39" / 4.1" 40 09 PM Mon Feb 17 2025 14F 9F / 93% W 21 G 32 MPH 4900 FT 17:1 / 6% 0.00" / 0.0" 0.39" / 4.1" 41 10 PM Mon Feb 17 2025 15F 10F / 93% W 22 G 33 MPH 4700 FT 16:1 / 6% 0.00" / 0.0" 0.39" / 4.1" 42 11 PM Mon Feb 17 2025 15F 10F / 92% W 20 G 32 MPH 4700 FT 16:1 / 6% 0.00" / 0.0" 0.39" / 4.1" 43 12 AM Tue Feb 18 2025 15F 10F / 91% W 19 G 30 MPH 4800 FT 16:1 / 6% 0.00" / 0.0" 0.39" / 4.1" 44 01 AM Tue Feb 18 2025 14F 9F / 93% W 22 G 33 MPH 4600 FT 15:1 / 7% 0.00" / 0.0" 0.39" / 4.1" 45 02 AM Tue Feb 18 2025 14F 9F / 89% WNW 17 G 25 MPH 4600 FT 17:1 / 6% 0.13" / 2.2" 0.52" / 6.3" 46 03 AM Tue Feb 18 2025 14F 9F / 88% WNW 19 G 29 MPH 4500 FT 14:1 / 7% 0.11" / 1.5" 0.63" / 7.8" 47 04 AM Tue Feb 18 2025 14F 8F / 89% WNW 19 G 28 MPH 4300 FT 16:1 / 6% 0.01" / 0.2" 0.64" / 8.0" 48 05 AM Tue Feb 18 2025 13F 8F / 94% WNW 20 G 30 MPH 4500 FT 16:1 / 6% 0.00" / 0.0" 0.64" / 8.0"