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 13-Apr-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 PM Sun Apr 13 2025 32F 25F / 52% WNW 12 G 16 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Sun Apr 13 2025 33F 25F / 55% W 8 G 11 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Sun Apr 13 2025 34F 27F / 42% W 7 G 11 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Sun Apr 13 2025 36F 27F / 72% WNW 9 G 13 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Sun Apr 13 2025 35F 27F / 78% WNW 11 G 15 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Sun Apr 13 2025 33F 26F / 72% WNW 11 G 17 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Sun Apr 13 2025 31F 26F / 69% WNW 12 G 17 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Sun Apr 13 2025 29F 24F / 62% WNW 13 G 19 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Sun Apr 13 2025 24F 22F / 66% WNW 15 G 21 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Sun Apr 13 2025 23F 22F / 46% WNW 16 G 21 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Sun Apr 13 2025 22F 21F / 43% WNW 19 G 26 MPH 6200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Sun Apr 13 2025 21F 20F / 52% NW 21 G 29 MPH 6100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Mon Apr 14 2025 19F 20F / 49% NW 22 G 32 MPH 6100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Mon Apr 14 2025 19F 20F / 43% NW 22 G 30 MPH 6100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Mon Apr 14 2025 18F 19F / 43% NW 21 G 29 MPH 5900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Mon Apr 14 2025 18F 19F / 40% SE 21 G 29 MPH 5700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Mon Apr 14 2025 18F 19F / 39% SE 21 G 28 MPH 5600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Mon Apr 14 2025 18F 19F / 35% ESE 19 G 25 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Mon Apr 14 2025 19F 20F / 33% ESE 17 G 22 MPH 5500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Mon Apr 14 2025 20F 21F / 32% NW 16 G 20 MPH 5500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Mon Apr 14 2025 20F 21F / 28% NNW 15 G 20 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Mon Apr 14 2025 22F 23F / 28% NNW 14 G 19 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Mon Apr 14 2025 27F 25F / 32% NNW 14 G 19 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Mon Apr 14 2025 29F 26F / 34% NNW 12 G 17 MPH 6000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Mon Apr 14 2025 33F 28F / 32% N 9 G 15 MPH 6400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Mon Apr 14 2025 36F 29F / 41% NNW 7 G 13 MPH 6800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Mon Apr 14 2025 38F 31F / 41% NNW 6 G 11 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Mon Apr 14 2025 40F 32F / 44% NW 6 G 10 MPH 7300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Mon Apr 14 2025 41F 33F / 41% NW 6 G 12 MPH 7500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Mon Apr 14 2025 40F 34F / 43% NW 7 G 12 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Mon Apr 14 2025 37F 33F / 42% NW 8 G 14 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Mon Apr 14 2025 34F 32F / 45% NW 9 G 13 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Mon Apr 14 2025 32F 31F / 39% ESE 9 G 14 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Mon Apr 14 2025 30F 30F / 36% SSE 11 G 17 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Mon Apr 14 2025 30F 31F / 34% SE 12 G 18 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Mon Apr 14 2025 30F 30F / 41% SE 12 G 19 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Tue Apr 15 2025 31F 31F / 30% SSE 14 G 23 MPH 8200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Tue Apr 15 2025 31F 32F / 29% SSE 16 G 24 MPH 8400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Tue Apr 15 2025 31F 32F / 25% S 16 G 24 MPH 8100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Tue Apr 15 2025 31F 32F / 24% S 16 G 23 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Tue Apr 15 2025 31F 32F / 26% SSW 17 G 26 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Tue Apr 15 2025 31F 32F / 23% SSW 17 G 27 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Tue Apr 15 2025 31F 32F / 23% SSW 17 G 27 MPH 7600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Tue Apr 15 2025 31F 31F / 21% SSW 19 G 27 MPH 7700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Tue Apr 15 2025 31F 31F / 22% SSW 20 G 29 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Tue Apr 15 2025 32F 32F / 23% SSW 18 G 29 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Tue Apr 15 2025 33F 31F / 22% S 17 G 29 MPH 7500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Tue Apr 15 2025 35F 32F / 24% SSW 17 G 29 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Tue Apr 15 2025 40F 34F / 38% SSW 13 G 26 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0"