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 05-May-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 May 05 2025 33F 29F / 83% E 5 G 10 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Mon May 05 2025 32F 30F / 79% ENE 6 G 9 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Mon May 05 2025 33F 29F / 82% NE 8 G 13 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Mon May 05 2025 33F 29F / 85% NNE 9 G 15 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Mon May 05 2025 34F 29F / 81% NE 10 G 17 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Mon May 05 2025 33F 29F / 92% NE 10 G 17 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Mon May 05 2025 32F 28F / 93% ENE 11 G 17 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Mon May 05 2025 31F 28F / 100% NE 8 G 13 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Mon May 05 2025 31F 28F / 100% NE 9 G 14 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Mon May 05 2025 32F 28F / 100% NE 9 G 15 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Mon May 05 2025 34F 27F / 100% NNE 6 G 12 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Mon May 05 2025 36F 28F / 100% NNE 5 G 11 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Mon May 05 2025 38F 30F / 100% NNE 5 G 11 MPH 9900 FT 7:1 / 14% 0.01" / 0.1" 0.01" / 0.1" 13 01 PM Mon May 05 2025 36F 30F / 94% N 8 G 16 MPH 10100 FT 5:1 / 20% 0.16" / 0.8" 0.17" / 0.9" 14 02 PM Mon May 05 2025 36F 30F / 92% NE 6 G 15 MPH 10300 FT 4:1 / 25% 0.12" / 0.5" 0.29" / 1.4" 15 03 PM Mon May 05 2025 36F 30F / 82% E 4 G 16 MPH 10300 FT 4:1 / 25% 0.14" / 0.6" 0.43" / 2.0" 16 04 PM Mon May 05 2025 35F 30F / 78% ENE 4 G 13 MPH 10400 FT 3:1 / 33% 0.04" / 0.1" 0.47" / 2.1" 17 05 PM Mon May 05 2025 35F 30F / 83% ESE 3 G 11 MPH 10100 FT 7:1 / 14% 0.01" / 0.1" 0.48" / 2.2" 18 06 PM Mon May 05 2025 36F 31F / 86% NNW 3 G 9 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.48" / 2.2" 19 07 PM Mon May 05 2025 34F 28F / 100% NW 9 G 16 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.48" / 2.2" 20 08 PM Mon May 05 2025 33F 27F / 100% NW 9 G 15 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.48" / 2.2" 21 09 PM Mon May 05 2025 32F 27F / 100% NW 12 G 20 MPH 9600 FT 9:1 / 11% 0.01" / 0.1" 0.49" / 2.3" 22 10 PM Mon May 05 2025 32F 27F / 100% NW 9 G 18 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.49" / 2.3" 23 11 PM Mon May 05 2025 31F 26F / 100% NW 11 G 22 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.49" / 2.3" 24 12 AM Tue May 06 2025 30F 26F / 100% NNW 11 G 19 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.49" / 2.3" 25 01 AM Tue May 06 2025 30F 25F / 100% N 10 G 19 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.49" / 2.3" 26 02 AM Tue May 06 2025 30F 25F / 99% NW 12 G 17 MPH 9400 FT 9:1 / 11% 0.01" / 0.1" 0.50" / 2.4" 27 03 AM Tue May 06 2025 31F 25F / 97% WNW 10 G 15 MPH 9200 FT 9:1 / 11% 0.02" / 0.2" 0.52" / 2.6" 28 04 AM Tue May 06 2025 30F 25F / 100% NW 9 G 11 MPH 9200 FT 9:1 / 11% 0.01" / 0.1" 0.53" / 2.7" 29 05 AM Tue May 06 2025 30F 25F / 100% W 7 G 9 MPH 9000 FT 9:1 / 11% 0.03" / 0.3" 0.56" / 3.0" 30 06 AM Tue May 06 2025 29F 24F / 100% SSE 9 G 14 MPH 8900 FT 10:1 / 10% 0.04" / 0.4" 0.60" / 3.4" 31 07 AM Tue May 06 2025 29F 25F / 100% SE 13 G 23 MPH 8800 FT 8:1 / 12% 0.07" / 0.6" 0.67" / 4.0" 32 08 AM Tue May 06 2025 30F 25F / 100% ESE 15 G 29 MPH 9000 FT 7:1 / 14% 0.05" / 0.4" 0.72" / 4.4" 33 09 AM Tue May 06 2025 30F 25F / 100% SE 14 G 29 MPH 8900 FT 7:1 / 14% 0.04" / 0.3" 0.76" / 4.7" 34 10 AM Tue May 06 2025 31F 26F / 100% ESE 14 G 31 MPH 8700 FT 7:1 / 14% 0.01" / 0.1" 0.77" / 4.8" 35 11 AM Tue May 06 2025 32F 26F / 100% ESE 11 G 27 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 0.77" / 4.8" 36 12 PM Tue May 06 2025 35F 29F / 97% ESE 10 G 25 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.77" / 4.8" 37 01 PM Tue May 06 2025 38F 31F / 79% ESE 9 G 23 MPH 9200 FT 8:1 / 12% 0.00" / 0.0" 0.77" / 4.8" 38 02 PM Tue May 06 2025 41F 33F / 75% E 9 G 21 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 0.77" / 4.8" 39 03 PM Tue May 06 2025 41F 34F / 77% E 8 G 20 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.77" / 4.8" 40 04 PM Tue May 06 2025 40F 33F / 91% ENE 6 G 18 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.77" / 4.8" 41 05 PM Tue May 06 2025 40F 33F / 100% NNE 9 G 20 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.77" / 4.8" 42 06 PM Tue May 06 2025 36F 31F / 100% N 11 G 24 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 0.77" / 4.8" 43 07 PM Tue May 06 2025 35F 30F / 100% NNW 17 G 30 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.77" / 4.8" 44 08 PM Tue May 06 2025 33F 30F / 100% NNE 13 G 24 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.77" / 4.8" 45 09 PM Tue May 06 2025 32F 30F / 87% ENE 12 G 22 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.77" / 4.8" 46 10 PM Tue May 06 2025 32F 30F / 90% E 13 G 23 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.77" / 4.8" 47 11 PM Tue May 06 2025 32F 29F / 100% ESE 12 G 21 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.77" / 4.8" 48 12 AM Wed May 07 2025 32F 30F / 92% ESE 15 G 25 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.77" / 4.8"