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 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 05 AM Sat Feb 15 2025 14F 7F / 95% WNW 22 G 33 MPH 4300 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Sat Feb 15 2025 13F 7F / 92% WNW 25 G 38 MPH 4300 FT 14:1 / 7% 0.05" / 0.7" 0.05" / 0.7" 2 07 AM Sat Feb 15 2025 13F 7F / 95% WNW 24 G 36 MPH ≤ KSLC 17:1 / 6% 0.03" / 0.5" 0.08" / 1.2" 3 08 AM Sat Feb 15 2025 12F 7F / 98% WNW 23 G 35 MPH ≤ KSLC 17:1 / 6% 0.04" / 0.7" 0.12" / 1.9" 4 09 AM Sat Feb 15 2025 11F 6F / 96% WNW 23 G 34 MPH ≤ KSLC 17:1 / 6% 0.01" / 0.2" 0.13" / 2.1" 5 10 AM Sat Feb 15 2025 11F 4F / 98% WNW 22 G 32 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.13" / 2.1" 6 11 AM Sat Feb 15 2025 13F 4F / 96% WNW 25 G 38 MPH ≤ KSLC 17:1 / 6% 0.01" / 0.2" 0.14" / 2.3" 7 12 PM Sat Feb 15 2025 14F 4F / 99% WNW 24 G 38 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.14" / 2.3" 8 01 PM Sat Feb 15 2025 14F 3F / 100% WNW 25 G 36 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.14" / 2.3" 9 02 PM Sat Feb 15 2025 14F 4F / 100% WNW 24 G 35 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.14" / 2.3" 10 03 PM Sat Feb 15 2025 14F 3F / 100% WNW 22 G 32 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.14" / 2.3" 11 04 PM Sat Feb 15 2025 12F 4F / 92% WNW 24 G 36 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.14" / 2.3" 12 05 PM Sat Feb 15 2025 11F 4F / 84% WNW 28 G 43 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.14" / 2.3" 13 06 PM Sat Feb 15 2025 9F 4F / 77% WNW 30 G 45 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.14" / 2.3" 14 07 PM Sat Feb 15 2025 7F 4F / 78% WNW 32 G 46 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.14" / 2.3" 15 08 PM Sat Feb 15 2025 8F 5F / 69% WNW 32 G 47 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.14" / 2.3" 16 09 PM Sat Feb 15 2025 8F 6F / 63% WNW 33 G 49 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.14" / 2.3" 17 10 PM Sat Feb 15 2025 10F 7F / 65% WNW 33 G 49 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 18 11 PM Sat Feb 15 2025 11F 8F / 65% WNW 34 G 48 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 19 12 AM Sun Feb 16 2025 12F 10F / 68% WNW 33 G 47 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 20 01 AM Sun Feb 16 2025 13F 11F / 69% WNW 32 G 46 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 21 02 AM Sun Feb 16 2025 13F 11F / 70% WNW 30 G 45 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 22 03 AM Sun Feb 16 2025 14F 12F / 84% WNW 30 G 45 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.14" / 2.3" 23 04 AM Sun Feb 16 2025 15F 13F / 92% WNW 28 G 42 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 24 05 AM Sun Feb 16 2025 16F 13F / 96% WNW 27 G 40 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.14" / 2.3" 25 06 AM Sun Feb 16 2025 17F 14F / 97% WNW 26 G 39 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.14" / 2.3" 26 07 AM Sun Feb 16 2025 18F 16F / 93% WNW 25 G 37 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 27 08 AM Sun Feb 16 2025 19F 16F / 85% WNW 26 G 38 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 28 09 AM Sun Feb 16 2025 20F 17F / 82% W 26 G 38 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 29 10 AM Sun Feb 16 2025 23F 19F / 78% W 26 G 41 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 30 11 AM Sun Feb 16 2025 26F 20F / 76% W 25 G 39 MPH 4300 FT 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 31 12 PM Sun Feb 16 2025 28F 20F / 77% WSW 26 G 41 MPH 4400 FT 7:1 / 14% 0.00" / 0.0" 0.14" / 2.3" 32 01 PM Sun Feb 16 2025 28F 20F / 68% WSW 27 G 43 MPH 4800 FT 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 33 02 PM Sun Feb 16 2025 29F 20F / 66% WSW 24 G 41 MPH 5300 FT 7:1 / 14% 0.00" / 0.0" 0.14" / 2.3" 34 03 PM Sun Feb 16 2025 28F 19F / 69% WSW 25 G 40 MPH 5700 FT 8:1 / 12% 0.00" / 0.0" 0.14" / 2.3" 35 04 PM Sun Feb 16 2025 27F 19F / 69% WSW 25 G 41 MPH 6000 FT 10:1 / 10% 0.00" / 0.0" 0.14" / 2.3" 36 05 PM Sun Feb 16 2025 26F 18F / 75% WSW 24 G 40 MPH 6400 FT 11:1 / 9% 0.00" / 0.0" 0.14" / 2.3" 37 06 PM Sun Feb 16 2025 25F 19F / 72% WSW 23 G 38 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.14" / 2.3" 38 07 PM Sun Feb 16 2025 24F 18F / 90% WSW 26 G 43 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.14" / 2.3" 39 08 PM Sun Feb 16 2025 24F 19F / 82% W 28 G 44 MPH 5700 FT 12:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 40 09 PM Sun Feb 16 2025 24F 18F / 89% W 28 G 44 MPH 5800 FT 13:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 41 10 PM Sun Feb 16 2025 23F 18F / 90% W 25 G 42 MPH 6800 FT 13:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 42 11 PM Sun Feb 16 2025 23F 18F / 88% W 26 G 40 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 43 12 AM Mon Feb 17 2025 22F 17F / 86% W 27 G 43 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 44 01 AM Mon Feb 17 2025 21F 16F / 85% WSW 27 G 45 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 45 02 AM Mon Feb 17 2025 22F 16F / 87% WSW 26 G 44 MPH 6600 FT 12:1 / 8% 0.00" / 0.0" 0.14" / 2.3" 46 03 AM Mon Feb 17 2025 23F 16F / 91% W 25 G 44 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.14" / 2.3" 47 04 AM Mon Feb 17 2025 21F 16F / 93% W 26 G 42 MPH 6000 FT 10:1 / 10% 0.04" / 0.4" 0.18" / 2.7" 48 05 AM Mon Feb 17 2025 21F 15F / 93% W 25 G 40 MPH 6000 FT 10:1 / 10% 0.05" / 0.5" 0.23" / 3.2"