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 14-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 PM Thu Feb 13 2025 24F 17F / 95% SW 26 G 50 MPH 6800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 12 AM Fri Feb 14 2025 25F 17F / 100% SW 24 G 47 MPH 6700 FT 10:1 / 10% 0.10" / 1.0" 0.10" / 1.0" 2 01 AM Fri Feb 14 2025 25F 17F / 94% SW 26 G 49 MPH 6700 FT 11:1 / 9% 0.11" / 1.2" 0.21" / 2.2" 3 02 AM Fri Feb 14 2025 24F 16F / 99% SW 26 G 47 MPH 6500 FT 10:1 / 10% 0.06" / 0.6" 0.27" / 2.8" 4 03 AM Fri Feb 14 2025 23F 16F / 97% SW 24 G 43 MPH 6400 FT 9:1 / 11% 0.05" / 0.4" 0.32" / 3.2" 5 04 AM Fri Feb 14 2025 22F 15F / 94% SW 24 G 39 MPH 6200 FT 11:1 / 9% 0.06" / 0.7" 0.38" / 3.9" 6 05 AM Fri Feb 14 2025 21F 15F / 94% SW 21 G 36 MPH 6100 FT 10:1 / 10% 0.09" / 0.9" 0.47" / 4.8" 7 06 AM Fri Feb 14 2025 20F 15F / 96% WSW 20 G 36 MPH 6000 FT 11:1 / 9% 0.14" / 1.5" 0.61" / 6.3" 8 07 AM Fri Feb 14 2025 20F 14F / 93% WSW 21 G 31 MPH 6000 FT 11:1 / 9% 0.11" / 1.2" 0.72" / 7.5" 9 08 AM Fri Feb 14 2025 20F 14F / 94% W 22 G 34 MPH 5900 FT 12:1 / 8% 0.12" / 1.4" 0.84" / 8.9" 10 09 AM Fri Feb 14 2025 21F 14F / 96% W 20 G 32 MPH 5800 FT 12:1 / 8% 0.09" / 1.1" 0.93" / 10.0" 11 10 AM Fri Feb 14 2025 22F 14F / 96% W 19 G 33 MPH 5800 FT 12:1 / 8% 0.08" / 1.0" 1.01" / 11.0" 12 11 AM Fri Feb 14 2025 23F 15F / 92% W 20 G 32 MPH 5900 FT 13:1 / 8% 0.02" / 0.3" 1.03" / 11.3" 13 12 PM Fri Feb 14 2025 25F 16F / 94% W 18 G 31 MPH 6100 FT 13:1 / 8% 0.03" / 0.4" 1.06" / 11.7" 14 01 PM Fri Feb 14 2025 25F 16F / 96% W 19 G 33 MPH 6000 FT 13:1 / 8% 0.04" / 0.5" 1.10" / 12.2" 15 02 PM Fri Feb 14 2025 26F 17F / 94% W 14 G 22 MPH 6000 FT 14:1 / 7% 0.04" / 0.6" 1.14" / 12.8" 16 03 PM Fri Feb 14 2025 24F 15F / 93% W 21 G 35 MPH 6100 FT 14:1 / 7% 0.14" / 2.0" 1.28" / 14.8" 17 04 PM Fri Feb 14 2025 23F 15F / 91% WNW 19 G 31 MPH 6300 FT 13:1 / 8% 0.00" / 0.0" 1.28" / 14.8" 18 05 PM Fri Feb 14 2025 21F 14F / 96% WNW 19 G 29 MPH 6200 FT 12:1 / 8% 0.05" / 0.6" 1.33" / 15.4" 19 06 PM Fri Feb 14 2025 20F 13F / 94% WNW 20 G 33 MPH 6100 FT 13:1 / 8% 0.16" / 2.1" 1.49" / 17.5" 20 07 PM Fri Feb 14 2025 19F 12F / 97% WNW 21 G 32 MPH 6100 FT 12:1 / 8% 0.01" / 0.1" 1.50" / 17.6" 21 08 PM Fri Feb 14 2025 18F 12F / 96% W 21 G 33 MPH 6000 FT 15:1 / 7% 0.01" / 0.2" 1.51" / 17.8" 22 09 PM Fri Feb 14 2025 19F 12F / 95% W 21 G 34 MPH 5700 FT 15:1 / 7% 0.03" / 0.4" 1.54" / 18.2" 23 10 PM Fri Feb 14 2025 17F 11F / 94% W 23 G 37 MPH 5500 FT 13:1 / 8% 0.01" / 0.1" 1.55" / 18.3" 24 11 PM Fri Feb 14 2025 17F 11F / 94% WNW 23 G 38 MPH 5300 FT 14:1 / 7% 0.02" / 0.3" 1.57" / 18.6" 25 12 AM Sat Feb 15 2025 17F 11F / 94% W 24 G 38 MPH 5000 FT 14:1 / 7% 0.03" / 0.4" 1.60" / 19.0" 26 01 AM Sat Feb 15 2025 16F 10F / 92% WNW 25 G 41 MPH 4700 FT 15:1 / 7% 0.03" / 0.4" 1.63" / 19.4" 27 02 AM Sat Feb 15 2025 15F 9F / 92% WNW 25 G 40 MPH 4700 FT 13:1 / 8% 0.10" / 1.3" 1.73" / 20.7" 28 03 AM Sat Feb 15 2025 15F 9F / 93% NW 27 G 40 MPH 4800 FT 13:1 / 8% 0.04" / 0.5" 1.77" / 21.2" 29 04 AM Sat Feb 15 2025 15F 9F / 93% WNW 23 G 35 MPH 4800 FT 13:1 / 8% 0.03" / 0.4" 1.80" / 21.6" 30 05 AM Sat Feb 15 2025 15F 9F / 96% WNW 23 G 37 MPH 4500 FT 13:1 / 8% 0.06" / 0.8" 1.86" / 22.4" 31 06 AM Sat Feb 15 2025 13F 7F / 93% WNW 23 G 35 MPH ≤ KSLC 14:1 / 7% 0.07" / 1.0" 1.93" / 23.4" 32 07 AM Sat Feb 15 2025 11F 6F / 95% WNW 24 G 34 MPH ≤ KSLC 15:1 / 7% 0.07" / 1.0" 2.00" / 24.4" 33 08 AM Sat Feb 15 2025 10F 5F / 97% WNW 21 G 30 MPH ≤ KSLC 18:1 / 6% 0.11" / 2.0" 2.11" / 26.4" 34 09 AM Sat Feb 15 2025 10F 4F / 92% WNW 23 G 35 MPH ≤ KSLC 17:1 / 6% 0.04" / 0.7" 2.15" / 27.1" 35 10 AM Sat Feb 15 2025 11F 4F / 96% WNW 25 G 36 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 2.15" / 27.1" 36 11 AM Sat Feb 15 2025 12F 3F / 89% WNW 26 G 38 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 2.15" / 27.1" 37 12 PM Sat Feb 15 2025 13F 4F / 94% WNW 26 G 39 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 2.15" / 27.1" 38 01 PM Sat Feb 15 2025 15F 4F / 97% WNW 26 G 41 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 2.15" / 27.1" 39 02 PM Sat Feb 15 2025 15F 5F / 98% WNW 28 G 41 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 2.15" / 27.1" 40 03 PM Sat Feb 15 2025 14F 6F / 94% WNW 27 G 39 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 2.15" / 27.1" 41 04 PM Sat Feb 15 2025 13F 6F / 89% WNW 27 G 38 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 2.15" / 27.1" 42 05 PM Sat Feb 15 2025 13F 7F / 79% WNW 28 G 43 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 2.15" / 27.1" 43 06 PM Sat Feb 15 2025 10F 6F / 77% WNW 30 G 43 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 2.15" / 27.1" 44 07 PM Sat Feb 15 2025 8F 6F / 76% WNW 32 G 46 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 2.15" / 27.1" 45 08 PM Sat Feb 15 2025 9F 8F / 71% WNW 29 G 45 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 2.15" / 27.1" 46 09 PM Sat Feb 15 2025 11F 10F / 64% WNW 31 G 44 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 2.15" / 27.1" 47 10 PM Sat Feb 15 2025 12F 10F / 58% WNW 32 G 46 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 2.15" / 27.1" 48 11 PM Sat Feb 15 2025 12F 11F / 62% WNW 31 G 44 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 2.15" / 27.1"