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 16-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 06 AM Sun Mar 16 2025 16F 12F / 90% W 27 G 41 MPH 4500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sun Mar 16 2025 16F 13F / 95% W 27 G 43 MPH 4400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sun Mar 16 2025 17F 14F / 89% WSW 25 G 41 MPH 4300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sun Mar 16 2025 19F 14F / 83% WSW 27 G 44 MPH 4400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sun Mar 16 2025 21F 15F / 79% WSW 26 G 44 MPH 5100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sun Mar 16 2025 23F 16F / 75% WSW 26 G 42 MPH 5400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sun Mar 16 2025 26F 18F / 71% WSW 25 G 42 MPH 5900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sun Mar 16 2025 28F 19F / 61% WSW 25 G 41 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sun Mar 16 2025 29F 20F / 65% SW 22 G 40 MPH 6800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sun Mar 16 2025 31F 21F / 63% SW 23 G 43 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sun Mar 16 2025 33F 22F / 61% SW 22 G 41 MPH 7400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sun Mar 16 2025 33F 24F / 59% SW 23 G 44 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sun Mar 16 2025 32F 25F / 57% SW 22 G 42 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sun Mar 16 2025 30F 25F / 47% SW 23 G 43 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sun Mar 16 2025 28F 24F / 48% SW 25 G 46 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sun Mar 16 2025 27F 23F / 57% SSW 24 G 43 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sun Mar 16 2025 26F 22F / 63% SSW 27 G 49 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sun Mar 16 2025 25F 21F / 66% SSW 27 G 48 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Mon Mar 17 2025 24F 21F / 65% SSW 28 G 47 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Mon Mar 17 2025 24F 21F / 63% SSW 28 G 46 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Mon Mar 17 2025 24F 21F / 66% SSW 28 G 47 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Mon Mar 17 2025 24F 21F / 65% SW 30 G 49 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Mon Mar 17 2025 24F 21F / 62% SW 28 G 46 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Mon Mar 17 2025 24F 21F / 62% SW 28 G 47 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Mon Mar 17 2025 23F 21F / 64% SW 27 G 44 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Mon Mar 17 2025 23F 20F / 65% SW 26 G 42 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Mon Mar 17 2025 23F 20F / 66% SW 26 G 40 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Mon Mar 17 2025 24F 20F / 65% SW 24 G 37 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Mon Mar 17 2025 26F 21F / 67% SW 18 G 32 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Mon Mar 17 2025 28F 21F / 66% SSW 19 G 36 MPH 6800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Mon Mar 17 2025 30F 23F / 66% SSW 19 G 37 MPH 7000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Mon Mar 17 2025 31F 22F / 68% SSW 20 G 39 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 32 02 PM Mon Mar 17 2025 34F 24F / 64% SSW 18 G 36 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 33 03 PM Mon Mar 17 2025 34F 24F / 61% SSW 18 G 37 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 04 PM Mon Mar 17 2025 35F 25F / 60% SSW 18 G 38 MPH 7900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 35 05 PM Mon Mar 17 2025 33F 25F / 60% SSW 22 G 45 MPH 7800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 36 06 PM Mon Mar 17 2025 31F 24F / 60% SSW 23 G 46 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 37 07 PM Mon Mar 17 2025 30F 24F / 73% SSW 26 G 52 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 38 08 PM Mon Mar 17 2025 26F 20F / 95% W 18 G 33 MPH 6400 FT 12:1 / 8% 0.06" / 0.7" 0.06" / 0.7" 39 09 PM Mon Mar 17 2025 25F 20F / 99% SW 18 G 35 MPH 5500 FT 13:1 / 8% 0.14" / 1.8" 0.20" / 2.5" 40 10 PM Mon Mar 17 2025 22F 15F / 93% WNW 25 G 45 MPH 5200 FT 14:1 / 7% 0.13" / 1.8" 0.33" / 4.3" 41 11 PM Mon Mar 17 2025 20F 14F / 94% WNW 27 G 45 MPH 5100 FT 15:1 / 7% 0.14" / 2.1" 0.47" / 6.4" 42 12 AM Tue Mar 18 2025 19F 14F / 93% WNW 20 G 32 MPH 5100 FT 15:1 / 7% 0.07" / 1.0" 0.54" / 7.4" 43 01 AM Tue Mar 18 2025 17F 12F / 95% WNW 16 G 24 MPH 4800 FT 16:1 / 6% 0.06" / 1.0" 0.60" / 8.4" 44 02 AM Tue Mar 18 2025 17F 11F / 93% WNW 19 G 28 MPH 4800 FT 16:1 / 6% 0.07" / 1.1" 0.67" / 9.5" 45 03 AM Tue Mar 18 2025 16F 10F / 89% WNW 19 G 29 MPH 4700 FT 17:1 / 6% 0.05" / 0.8" 0.72" / 10.3" 46 04 AM Tue Mar 18 2025 14F 9F / 93% NW 20 G 30 MPH 4700 FT 16:1 / 6% 0.03" / 0.5" 0.75" / 10.8" 47 05 AM Tue Mar 18 2025 14F 8F / 92% NW 23 G 32 MPH 4300 FT 16:1 / 6% 0.03" / 0.5" 0.78" / 11.3" 48 06 AM Tue Mar 18 2025 13F 7F / 92% NW 23 G 34 MPH ≤ KSLC 16:1 / 6% 0.04" / 0.6" 0.82" / 11.9"