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 31-Mar-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 12 AM Mon Mar 31 2025 26F 22F / 76% SW 19 G 33 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Mon Mar 31 2025 26F 22F / 66% SW 22 G 36 MPH 7700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Mon Mar 31 2025 27F 23F / 68% SSW 23 G 39 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Mon Mar 31 2025 26F 22F / 67% SSW 23 G 42 MPH 7400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Mon Mar 31 2025 25F 21F / 70% SSW 26 G 45 MPH 7200 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Mon Mar 31 2025 25F 21F / 71% SW 27 G 47 MPH 7100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Mon Mar 31 2025 25F 21F / 78% SW 25 G 45 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Mon Mar 31 2025 25F 21F / 81% SW 24 G 43 MPH 7000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Mon Mar 31 2025 25F 20F / 83% SW 25 G 41 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Mon Mar 31 2025 26F 21F / 84% SW 20 G 37 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Mon Mar 31 2025 27F 20F / 94% SW 20 G 35 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Mon Mar 31 2025 28F 20F / 89% SW 20 G 37 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Mon Mar 31 2025 31F 21F / 80% SW 20 G 37 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Mon Mar 31 2025 33F 22F / 73% SW 18 G 35 MPH 7100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Mon Mar 31 2025 33F 23F / 74% SSW 19 G 38 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Mon Mar 31 2025 33F 23F / 60% SW 23 G 45 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Mon Mar 31 2025 33F 24F / 68% SSW 23 G 46 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Mon Mar 31 2025 33F 23F / 70% SW 29 G 52 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Mon Mar 31 2025 31F 21F / 82% SW 28 G 52 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Mon Mar 31 2025 27F 20F / 99% W 20 G 33 MPH 7200 FT 10:1 / 10% 0.16" / 1.6" 0.16" / 1.6" 20 08 PM Mon Mar 31 2025 24F 16F / 96% WNW 29 G 44 MPH 5900 FT 10:1 / 10% 0.28" / 2.8" 0.44" / 4.4" 21 09 PM Mon Mar 31 2025 22F 14F / 95% WNW 24 G 39 MPH 5400 FT 11:1 / 9% 0.21" / 2.3" 0.65" / 6.7" 22 10 PM Mon Mar 31 2025 19F 11F / 96% WNW 26 G 43 MPH 5400 FT 17:1 / 6% 0.14" / 2.4" 0.79" / 9.1" 23 11 PM Mon Mar 31 2025 18F 11F / 98% WNW 26 G 42 MPH 5200 FT 16:1 / 6% 0.08" / 1.3" 0.87" / 10.4" 24 12 AM Tue Apr 01 2025 17F 10F / 96% WNW 24 G 37 MPH 5100 FT 13:1 / 8% 0.02" / 0.3" 0.89" / 10.7" 25 01 AM Tue Apr 01 2025 15F 9F / 88% WNW 27 G 40 MPH 4900 FT 14:1 / 7% 0.01" / 0.1" 0.90" / 10.8" 26 02 AM Tue Apr 01 2025 14F 7F / 92% W 24 G 37 MPH 4700 FT 15:1 / 7% 0.01" / 0.2" 0.91" / 11.0" 27 03 AM Tue Apr 01 2025 13F 6F / 97% W 22 G 34 MPH 4800 FT 19:1 / 5% 0.03" / 0.6" 0.94" / 11.6" 28 04 AM Tue Apr 01 2025 14F 8F / 98% WSW 19 G 29 MPH 4600 FT 16:1 / 6% 0.05" / 0.8" 0.99" / 12.4" 29 05 AM Tue Apr 01 2025 12F 5F / 96% W 22 G 35 MPH 4400 FT 16:1 / 6% 0.04" / 0.6" 1.03" / 13.0" 30 06 AM Tue Apr 01 2025 11F 4F / 90% W 21 G 35 MPH 4400 FT 17:1 / 6% 0.00" / 0.0" 1.03" / 13.0" 31 07 AM Tue Apr 01 2025 11F 4F / 92% W 21 G 33 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 1.03" / 13.0" 32 08 AM Tue Apr 01 2025 11F 4F / 92% W 25 G 39 MPH ≤ KSLC 13:1 / 8% 0.09" / 1.2" 1.12" / 14.2" 33 09 AM Tue Apr 01 2025 11F 4F / 88% W 22 G 34 MPH ≤ KSLC 15:1 / 7% 0.08" / 1.2" 1.20" / 15.4" 34 10 AM Tue Apr 01 2025 13F 5F / 81% WNW 22 G 35 MPH ≤ KSLC 17:1 / 6% 0.06" / 1.0" 1.26" / 16.4" 35 11 AM Tue Apr 01 2025 13F 5F / 82% WNW 21 G 33 MPH ≤ KSLC 17:1 / 6% 0.01" / 0.2" 1.27" / 16.6" 36 12 PM Tue Apr 01 2025 17F 6F / 86% WNW 21 G 31 MPH ≤ KSLC 18:1 / 6% 0.01" / 0.2" 1.28" / 16.8" 37 01 PM Tue Apr 01 2025 19F 8F / 88% WNW 18 G 29 MPH ≤ KSLC 17:1 / 6% 0.02" / 0.3" 1.30" / 17.1" 38 02 PM Tue Apr 01 2025 20F 8F / 87% WNW 18 G 27 MPH ≤ KSLC 18:1 / 6% 0.01" / 0.2" 1.31" / 17.3" 39 03 PM Tue Apr 01 2025 21F 10F / 90% W 19 G 30 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 1.31" / 17.3" 40 04 PM Tue Apr 01 2025 22F 10F / 82% W 18 G 30 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 1.31" / 17.3" 41 05 PM Tue Apr 01 2025 21F 10F / 82% W 18 G 29 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 1.31" / 17.3" 42 06 PM Tue Apr 01 2025 20F 10F / 72% W 18 G 27 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 1.31" / 17.3" 43 07 PM Tue Apr 01 2025 17F 9F / 74% W 16 G 25 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 1.31" / 17.3" 44 08 PM Tue Apr 01 2025 13F 7F / 78% W 15 G 24 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.31" / 17.3" 45 09 PM Tue Apr 01 2025 11F 6F / 81% WSW 17 G 23 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 1.31" / 17.3" 46 10 PM Tue Apr 01 2025 10F 5F / 85% WSW 15 G 21 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 1.31" / 17.3" 47 11 PM Tue Apr 01 2025 10F 7F / 73% W 16 G 24 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 1.31" / 17.3" 48 12 AM Wed Apr 02 2025 10F 6F / 75% W 14 G 22 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.31" / 17.3"