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 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 06 AM Mon May 05 2025 32F 27F / 100% NE 11 G 17 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Mon May 05 2025 31F 27F / 91% NE 10 G 18 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Mon May 05 2025 32F 27F / 96% ENE 8 G 15 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Mon May 05 2025 32F 27F / 96% ENE 5 G 11 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Mon May 05 2025 34F 26F / 100% NE 4 G 8 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Mon May 05 2025 37F 28F / 100% ENE 3 G 6 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Mon May 05 2025 39F 30F / 98% NNE 3 G 10 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Mon May 05 2025 39F 31F / 100% N 6 G 16 MPH 10000 FT 6:1 / 17% 0.05" / 0.3" 0.05" / 0.3" 8 02 PM Mon May 05 2025 38F 31F / 95% NNW 5 G 13 MPH 10200 FT 5:1 / 20% 0.12" / 0.6" 0.17" / 0.9" 9 03 PM Mon May 05 2025 37F 30F / 82% SE 7 G 17 MPH 10100 FT 5:1 / 20% 0.15" / 0.8" 0.32" / 1.7" 10 04 PM Mon May 05 2025 34F 29F / 87% SE 9 G 21 MPH 10500 FT 0:1 / -% 0.11" / 0.0" 0.43" / 1.7" 11 05 PM Mon May 05 2025 34F 28F / 92% S 9 G 18 MPH 10200 FT 5:1 / 20% 0.21" / 1.0" 0.64" / 2.7" 12 06 PM Mon May 05 2025 33F 28F / 96% SW 11 G 21 MPH 10300 FT 4:1 / 25% 0.30" / 1.2" 0.94" / 3.9" 13 07 PM Mon May 05 2025 33F 28F / 98% SSW 10 G 16 MPH 9600 FT 11:1 / 9% 0.34" / 3.7" 1.28" / 7.6" 14 08 PM Mon May 05 2025 32F 27F / 100% W 10 G 19 MPH 9600 FT 9:1 / 11% 0.20" / 1.8" 1.48" / 9.4" 15 09 PM Mon May 05 2025 31F 27F / 100% WNW 10 G 18 MPH 9200 FT 9:1 / 11% 0.07" / 0.6" 1.55" / 10.0" 16 10 PM Mon May 05 2025 29F 26F / 90% W 8 G 15 MPH 9200 FT 9:1 / 11% 0.01" / 0.1" 1.56" / 10.1" 17 11 PM Mon May 05 2025 28F 25F / 100% WSW 6 G 11 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 1.56" / 10.1" 18 12 AM Tue May 06 2025 30F 26F / 100% SSE 7 G 12 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 1.56" / 10.1" 19 01 AM Tue May 06 2025 30F 26F / 92% SSW 7 G 14 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 1.56" / 10.1" 20 02 AM Tue May 06 2025 31F 26F / 96% S 7 G 13 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 1.56" / 10.1" 21 03 AM Tue May 06 2025 30F 27F / 90% SE 5 G 7 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 1.56" / 10.1" 22 04 AM Tue May 06 2025 31F 26F / 92% ENE 4 G 8 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 1.56" / 10.1" 23 05 AM Tue May 06 2025 31F 26F / 100% ESE 11 G 20 MPH 9100 FT 8:1 / 12% 0.02" / 0.2" 1.58" / 10.3" 24 06 AM Tue May 06 2025 30F 24F / 100% ESE 14 G 25 MPH 9200 FT 8:1 / 12% 0.07" / 0.6" 1.65" / 10.9" 25 07 AM Tue May 06 2025 30F 25F / 100% ESE 12 G 27 MPH 9000 FT 7:1 / 14% 0.00" / 0.0" 1.65" / 10.9" 26 08 AM Tue May 06 2025 31F 25F / 99% ESE 12 G 26 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 1.65" / 10.9" 27 09 AM Tue May 06 2025 31F 26F / 90% ESE 11 G 24 MPH 8700 FT 8:1 / 12% 0.00" / 0.0" 1.65" / 10.9" 28 10 AM Tue May 06 2025 33F 26F / 98% E 6 G 18 MPH 8700 FT 10:1 / 10% 0.00" / 0.0" 1.65" / 10.9" 29 11 AM Tue May 06 2025 35F 27F / 97% E 8 G 18 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 1.65" / 10.9" 30 12 PM Tue May 06 2025 37F 28F / 86% E 6 G 18 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 1.65" / 10.9" 31 01 PM Tue May 06 2025 38F 30F / 87% E 5 G 18 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 1.65" / 10.9" 32 02 PM Tue May 06 2025 40F 31F / 91% NE 5 G 14 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 1.65" / 10.9" 33 03 PM Tue May 06 2025 38F 30F / 97% NE 6 G 17 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 1.65" / 10.9" 34 04 PM Tue May 06 2025 38F 29F / 97% N 7 G 21 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 1.65" / 10.9" 35 05 PM Tue May 06 2025 37F 29F / 99% NNW 15 G 28 MPH 9700 FT 8:1 / 12% 0.00" / 0.0" 1.65" / 10.9" 36 06 PM Tue May 06 2025 35F 29F / 96% NNW 17 G 32 MPH 9600 FT 8:1 / 12% 0.00" / 0.0" 1.65" / 10.9" 37 07 PM Tue May 06 2025 33F 30F / 90% N 19 G 32 MPH 9200 FT 10:1 / 10% 0.00" / 0.0" 1.65" / 10.9" 38 08 PM Tue May 06 2025 32F 30F / 88% N 14 G 24 MPH 8900 FT 9:1 / 11% 0.00" / 0.0" 1.65" / 10.9" 39 09 PM Tue May 06 2025 31F 30F / 72% NE 9 G 18 MPH 9000 FT 11:1 / 9% 0.00" / 0.0" 1.65" / 10.9" 40 10 PM Tue May 06 2025 32F 30F / 81% E 11 G 21 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 1.65" / 10.9" 41 11 PM Tue May 06 2025 33F 30F / 93% ESE 12 G 24 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 1.65" / 10.9" 42 12 AM Wed May 07 2025 33F 31F / 79% E 15 G 28 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 1.65" / 10.9" 43 01 AM Wed May 07 2025 32F 30F / 89% E 18 G 33 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 1.65" / 10.9" 44 02 AM Wed May 07 2025 32F 30F / 89% E 19 G 31 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 1.65" / 10.9" 45 03 AM Wed May 07 2025 32F 31F / 75% E 13 G 25 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 1.65" / 10.9" 46 04 AM Wed May 07 2025 31F 30F / 80% E 14 G 25 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 1.65" / 10.9" 47 05 AM Wed May 07 2025 32F 30F / 78% E 14 G 24 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 1.65" / 10.9" 48 06 AM Wed May 07 2025 31F 30F / 72% E 15 G 21 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 1.65" / 10.9"