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 07-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 Fri Feb 07 2025 30F 21F / 100% SW 30 G 57 MPH 8000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Fri Feb 07 2025 30F 20F / 98% WSW 30 G 57 MPH 7400 FT 9:1 / 11% 0.06" / 0.5" 0.06" / 0.5" 2 01 PM Fri Feb 07 2025 26F 19F / 95% W 19 G 31 MPH 6600 FT 13:1 / 8% 0.00" / 0.0" 0.06" / 0.5" 3 02 PM Fri Feb 07 2025 24F 17F / 93% W 25 G 40 MPH 5900 FT 11:1 / 9% 0.20" / 2.2" 0.26" / 2.7" 4 03 PM Fri Feb 07 2025 23F 15F / 100% W 20 G 33 MPH 5700 FT 13:1 / 8% 0.15" / 2.0" 0.41" / 4.7" 5 04 PM Fri Feb 07 2025 20F 13F / 97% W 23 G 35 MPH 5200 FT 16:1 / 6% 0.10" / 1.6" 0.51" / 6.3" 6 05 PM Fri Feb 07 2025 18F 12F / 99% W 21 G 34 MPH 4600 FT 21:1 / 5% 0.09" / 1.9" 0.60" / 8.2" 7 06 PM Fri Feb 07 2025 16F 9F / 98% WNW 24 G 41 MPH 4300 FT 17:1 / 6% 0.09" / 1.5" 0.69" / 9.7" 8 07 PM Fri Feb 07 2025 15F 8F / 100% WNW 25 G 38 MPH ≤ KSLC 21:1 / 5% 0.06" / 1.3" 0.75" / 11.0" 9 08 PM Fri Feb 07 2025 15F 9F / 100% WNW 23 G 38 MPH ≤ KSLC 19:1 / 5% 0.03" / 0.6" 0.78" / 11.6" 10 09 PM Fri Feb 07 2025 14F 7F / 100% WNW 26 G 39 MPH ≤ KSLC 19:1 / 5% 0.02" / 0.4" 0.80" / 12.0" 11 10 PM Fri Feb 07 2025 13F 6F / 99% WNW 29 G 42 MPH ≤ KSLC 20:1 / 5% 0.01" / 0.2" 0.81" / 12.2" 12 11 PM Fri Feb 07 2025 12F 5F / 95% WNW 27 G 41 MPH ≤ KSLC 20:1 / 5% 0.01" / 0.2" 0.82" / 12.4" 13 12 AM Sat Feb 08 2025 11F 6F / 86% WNW 28 G 41 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 14 01 AM Sat Feb 08 2025 11F 5F / 74% WNW 26 G 38 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 15 02 AM Sat Feb 08 2025 9F 5F / 66% WNW 27 G 40 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.82" / 12.4" 16 03 AM Sat Feb 08 2025 8F 4F / 64% WNW 26 G 37 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.82" / 12.4" 17 04 AM Sat Feb 08 2025 8F 4F / 63% WNW 25 G 36 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.82" / 12.4" 18 05 AM Sat Feb 08 2025 7F 4F / 64% WNW 24 G 36 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 19 06 AM Sat Feb 08 2025 7F 3F / 70% WNW 24 G 35 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 20 07 AM Sat Feb 08 2025 7F 3F / 78% WNW 21 G 31 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 21 08 AM Sat Feb 08 2025 6F 3F / 78% W 19 G 29 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 22 09 AM Sat Feb 08 2025 7F 4F / 77% W 18 G 27 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 23 10 AM Sat Feb 08 2025 8F 5F / 77% W 19 G 27 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 24 11 AM Sat Feb 08 2025 13F 7F / 75% W 17 G 27 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 25 12 PM Sat Feb 08 2025 16F 7F / 80% WSW 15 G 25 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 26 01 PM Sat Feb 08 2025 17F 9F / 82% WSW 15 G 24 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 27 02 PM Sat Feb 08 2025 18F 8F / 89% WSW 15 G 23 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 28 03 PM Sat Feb 08 2025 18F 8F / 95% WSW 15 G 24 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 29 04 PM Sat Feb 08 2025 17F 8F / 95% W 15 G 27 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 30 05 PM Sat Feb 08 2025 14F 6F / 95% W 17 G 29 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 31 06 PM Sat Feb 08 2025 11F 5F / 90% W 21 G 34 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.82" / 12.4" 32 07 PM Sat Feb 08 2025 10F 4F / 95% W 24 G 36 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 33 08 PM Sat Feb 08 2025 9F 3F / 100% W 24 G 34 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.82" / 12.4" 34 09 PM Sat Feb 08 2025 10F 4F / 93% W 25 G 35 MPH ≤ KSLC 20:1 / 5% 0.01" / 0.2" 0.83" / 12.6" 35 10 PM Sat Feb 08 2025 9F 4F / 93% WNW 27 G 39 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.83" / 12.6" 36 11 PM Sat Feb 08 2025 8F 3F / 99% WNW 24 G 37 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 37 12 AM Sun Feb 09 2025 8F 3F / 92% W 25 G 36 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 38 01 AM Sun Feb 09 2025 6F 2F / 82% W 26 G 41 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 39 02 AM Sun Feb 09 2025 5F 2F / 84% WNW 25 G 39 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 40 03 AM Sun Feb 09 2025 5F 2F / 79% WNW 24 G 37 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 41 04 AM Sun Feb 09 2025 5F 3F / 71% W 24 G 34 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 42 05 AM Sun Feb 09 2025 4F 3F / 71% WNW 23 G 32 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 43 06 AM Sun Feb 09 2025 4F 3F / 67% WNW 24 G 35 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 44 07 AM Sun Feb 09 2025 4F 2F / 67% WNW 25 G 38 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 45 08 AM Sun Feb 09 2025 4F 2F / 69% WNW 26 G 37 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 46 09 AM Sun Feb 09 2025 4F 3F / 71% WNW 24 G 33 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 47 10 AM Sun Feb 09 2025 4F 4F / 70% WNW 22 G 33 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.83" / 12.6" 48 11 AM Sun Feb 09 2025 11F 7F / 68% W 20 G 29 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.83" / 12.6"