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 18Z 15-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 11 AM Sat Feb 15 2025 12F 4F / 93% WNW 28 G 43 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Sat Feb 15 2025 14F 4F / 97% WNW 27 G 42 MPH ≤ KSLC 15:1 / 7% 0.01" / 0.2" 0.01" / 0.2" 2 01 PM Sat Feb 15 2025 15F 4F / 93% WNW 30 G 44 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.01" / 0.2" 3 02 PM Sat Feb 15 2025 16F 4F / 100% WNW 27 G 40 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.01" / 0.2" 4 03 PM Sat Feb 15 2025 15F 4F / 96% WNW 26 G 37 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.01" / 0.2" 5 04 PM Sat Feb 15 2025 13F 4F / 90% WNW 25 G 35 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.01" / 0.2" 6 05 PM Sat Feb 15 2025 11F 5F / 74% WNW 30 G 43 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.01" / 0.2" 7 06 PM Sat Feb 15 2025 9F 5F / 74% WNW 30 G 43 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.01" / 0.2" 8 07 PM Sat Feb 15 2025 8F 5F / 78% WNW 32 G 46 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.01" / 0.2" 9 08 PM Sat Feb 15 2025 7F 5F / 73% WNW 32 G 47 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.01" / 0.2" 10 09 PM Sat Feb 15 2025 8F 6F / 64% WNW 34 G 49 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.01" / 0.2" 11 10 PM Sat Feb 15 2025 11F 8F / 59% WNW 34 G 48 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.01" / 0.2" 12 11 PM Sat Feb 15 2025 12F 9F / 64% WNW 34 G 48 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.01" / 0.2" 13 12 AM Sun Feb 16 2025 12F 10F / 66% WNW 32 G 47 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.01" / 0.2" 14 01 AM Sun Feb 16 2025 13F 11F / 69% WNW 32 G 47 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.01" / 0.2" 15 02 AM Sun Feb 16 2025 13F 13F / 87% WNW 31 G 46 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 16 03 AM Sun Feb 16 2025 14F 14F / 90% WNW 30 G 46 MPH ≤ KSLC 6:1 / 17% 0.00" / 0.0" 0.01" / 0.2" 17 04 AM Sun Feb 16 2025 15F 14F / 97% WNW 29 G 43 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 18 05 AM Sun Feb 16 2025 17F 15F / 96% WNW 28 G 41 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 19 06 AM Sun Feb 16 2025 18F 16F / 92% WNW 26 G 41 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 20 07 AM Sun Feb 16 2025 19F 17F / 86% WNW 27 G 39 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.01" / 0.2" 21 08 AM Sun Feb 16 2025 19F 17F / 79% W 27 G 41 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 22 09 AM Sun Feb 16 2025 20F 18F / 80% W 27 G 41 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 23 10 AM Sun Feb 16 2025 24F 19F / 79% W 26 G 42 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 24 11 AM Sun Feb 16 2025 27F 19F / 80% WSW 27 G 44 MPH 4500 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 25 12 PM Sun Feb 16 2025 28F 20F / 75% WSW 26 G 43 MPH 4800 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.2" 26 01 PM Sun Feb 16 2025 28F 20F / 70% WSW 24 G 42 MPH 5100 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.2" 27 02 PM Sun Feb 16 2025 29F 20F / 68% WSW 25 G 41 MPH 5600 FT 8:1 / 12% 0.00" / 0.0" 0.01" / 0.2" 28 03 PM Sun Feb 16 2025 28F 19F / 76% WSW 25 G 43 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.01" / 0.2" 29 04 PM Sun Feb 16 2025 26F 18F / 88% WSW 25 G 44 MPH 6300 FT 10:1 / 10% 0.01" / 0.1" 0.02" / 0.3" 30 05 PM Sun Feb 16 2025 23F 16F / 95% WSW 23 G 40 MPH 6000 FT 9:1 / 11% 0.06" / 0.5" 0.08" / 0.8" 31 06 PM Sun Feb 16 2025 21F 16F / 93% WSW 25 G 42 MPH 6600 FT 10:1 / 10% 0.08" / 0.8" 0.16" / 1.6" 32 07 PM Sun Feb 16 2025 23F 17F / 98% W 27 G 44 MPH 6700 FT 11:1 / 9% 0.02" / 0.2" 0.18" / 1.8" 33 08 PM Sun Feb 16 2025 23F 16F / 100% W 30 G 47 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.18" / 1.8" 34 09 PM Sun Feb 16 2025 23F 16F / 96% W 29 G 45 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.18" / 1.8" 35 10 PM Sun Feb 16 2025 22F 16F / 95% W 30 G 46 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.18" / 1.8" 36 11 PM Sun Feb 16 2025 23F 17F / 91% W 29 G 47 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.18" / 1.8" 37 12 AM Mon Feb 17 2025 22F 17F / 90% W 29 G 47 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.18" / 1.8" 38 01 AM Mon Feb 17 2025 22F 16F / 93% W 28 G 45 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.18" / 1.8" 39 02 AM Mon Feb 17 2025 23F 17F / 95% WSW 27 G 45 MPH 6800 FT 11:1 / 9% 0.01" / 0.1" 0.19" / 1.9" 40 03 AM Mon Feb 17 2025 23F 17F / 95% WSW 26 G 41 MPH 6700 FT 13:1 / 8% 0.05" / 0.6" 0.24" / 2.5" 41 04 AM Mon Feb 17 2025 22F 16F / 92% W 25 G 39 MPH 6300 FT 11:1 / 9% 0.10" / 1.1" 0.34" / 3.6" 42 05 AM Mon Feb 17 2025 22F 16F / 96% W 22 G 36 MPH 5500 FT 11:1 / 9% 0.10" / 1.1" 0.44" / 4.7" 43 06 AM Mon Feb 17 2025 21F 15F / 96% W 19 G 32 MPH 5500 FT 14:1 / 7% 0.09" / 1.3" 0.53" / 6.0" 44 07 AM Mon Feb 17 2025 20F 14F / 95% W 21 G 35 MPH 5400 FT 14:1 / 7% 0.07" / 1.0" 0.60" / 7.0" 45 08 AM Mon Feb 17 2025 20F 14F / 100% W 24 G 35 MPH 5100 FT 16:1 / 6% 0.04" / 0.6" 0.64" / 7.6" 46 09 AM Mon Feb 17 2025 20F 13F / 98% W 22 G 37 MPH 5100 FT 14:1 / 7% 0.02" / 0.3" 0.66" / 7.9" 47 10 AM Mon Feb 17 2025 22F 14F / 90% W 23 G 38 MPH 5000 FT 14:1 / 7% 0.01" / 0.1" 0.67" / 8.0" 48 11 AM Mon Feb 17 2025 21F 13F / 87% W 22 G 33 MPH 5100 FT 16:1 / 6% 0.01" / 0.2" 0.68" / 8.2"