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 24-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 PM Mon Mar 24 2025 35F 29F / 94% WNW 22 G 35 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Mon Mar 24 2025 36F 29F / 96% WNW 17 G 28 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Mon Mar 24 2025 38F 29F / 93% WNW 18 G 28 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Mon Mar 24 2025 39F 30F / 96% WNW 17 G 27 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Mon Mar 24 2025 38F 30F / 98% WNW 17 G 26 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Mon Mar 24 2025 36F 31F / 93% WNW 17 G 27 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Mon Mar 24 2025 34F 30F / 98% WNW 19 G 29 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Mon Mar 24 2025 33F 28F / 94% WNW 19 G 27 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Mon Mar 24 2025 31F 28F / 91% SE 19 G 25 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Mon Mar 24 2025 30F 28F / 85% ESE 17 G 23 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Mon Mar 24 2025 29F 28F / 80% ESE 18 G 24 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Mon Mar 24 2025 29F 28F / 78% ESE 19 G 25 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Tue Mar 25 2025 29F 28F / 74% ESE 18 G 26 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Tue Mar 25 2025 29F 28F / 74% E 18 G 28 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Tue Mar 25 2025 29F 28F / 66% NW 18 G 26 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Tue Mar 25 2025 28F 28F / 62% WNW 19 G 26 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Tue Mar 25 2025 28F 27F / 61% NW 18 G 24 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Tue Mar 25 2025 28F 27F / 64% NW 17 G 24 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Tue Mar 25 2025 27F 27F / 67% NW 17 G 22 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Tue Mar 25 2025 27F 27F / 63% NW 17 G 23 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Tue Mar 25 2025 27F 27F / 57% NW 16 G 22 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Tue Mar 25 2025 28F 28F / 52% E 14 G 18 MPH 8900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Tue Mar 25 2025 30F 30F / 50% NW 12 G 16 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Tue Mar 25 2025 36F 32F / 45% NNW 7 G 12 MPH 8700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Tue Mar 25 2025 39F 33F / 42% NW 6 G 9 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Tue Mar 25 2025 41F 35F / 45% NNW 5 G 9 MPH 8800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Tue Mar 25 2025 43F 36F / 44% W 4 G 8 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Tue Mar 25 2025 44F 36F / 56% W 5 G 9 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Tue Mar 25 2025 42F 37F / 40% S 6 G 11 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Tue Mar 25 2025 41F 38F / 33% S 6 G 11 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Tue Mar 25 2025 38F 37F / 23% S 8 G 14 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Tue Mar 25 2025 37F 36F / 24% S 10 G 16 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Tue Mar 25 2025 36F 35F / 34% S 11 G 19 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Tue Mar 25 2025 36F 35F / 40% S 13 G 22 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Tue Mar 25 2025 36F 35F / 43% S 13 G 22 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Tue Mar 25 2025 36F 35F / 48% SSE 13 G 21 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Wed Mar 26 2025 36F 35F / 43% S 15 G 23 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Wed Mar 26 2025 36F 36F / 42% S 16 G 25 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Wed Mar 26 2025 36F 36F / 45% SSW 15 G 24 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Wed Mar 26 2025 36F 36F / 42% SSW 16 G 24 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Wed Mar 26 2025 36F 36F / 41% SSW 16 G 26 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Wed Mar 26 2025 36F 36F / 37% SW 17 G 27 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Wed Mar 26 2025 36F 35F / 40% SW 18 G 28 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Wed Mar 26 2025 36F 35F / 42% SW 17 G 25 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Wed Mar 26 2025 35F 35F / 44% WSW 15 G 23 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Wed Mar 26 2025 35F 35F / 49% WSW 14 G 21 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Wed Mar 26 2025 38F 36F / 45% SW 14 G 24 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Wed Mar 26 2025 42F 36F / 32% SW 13 G 23 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Wed Mar 26 2025 45F 38F / 31% SW 13 G 23 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0"