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 00Z 06-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 PM Mon May 05 2025 33F 27F / 99% WNW 12 G 20 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Mon May 05 2025 33F 27F / 100% WNW 9 G 16 MPH 10100 FT 5:1 / 20% 0.05" / 0.2" 0.05" / 0.2" 2 08 PM Mon May 05 2025 32F 27F / 100% W 7 G 14 MPH 9400 FT 9:1 / 11% 0.03" / 0.3" 0.08" / 0.5" 3 09 PM Mon May 05 2025 31F 27F / 100% WSW 7 G 14 MPH 9500 FT 9:1 / 11% 0.06" / 0.5" 0.14" / 1.0" 4 10 PM Mon May 05 2025 30F 26F / 100% WSW 6 G 14 MPH 9300 FT 9:1 / 11% 0.02" / 0.2" 0.16" / 1.2" 5 11 PM Mon May 05 2025 30F 26F / 100% SSW 7 G 13 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.16" / 1.2" 6 12 AM Tue May 06 2025 31F 26F / 100% SW 7 G 13 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.16" / 1.2" 7 01 AM Tue May 06 2025 30F 26F / 99% SE 7 G 14 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.16" / 1.2" 8 02 AM Tue May 06 2025 32F 26F / 99% SSE 7 G 14 MPH 8300 FT 9:1 / 11% 0.03" / 0.3" 0.19" / 1.5" 9 03 AM Tue May 06 2025 31F 26F / 100% SE 6 G 12 MPH 8400 FT 10:1 / 10% 0.01" / 0.1" 0.20" / 1.6" 10 04 AM Tue May 06 2025 30F 25F / 95% SSE 8 G 16 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.20" / 1.6" 11 05 AM Tue May 06 2025 29F 25F / 95% SSE 7 G 15 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.20" / 1.6" 12 06 AM Tue May 06 2025 30F 25F / 100% ESE 8 G 17 MPH 8400 FT 9:1 / 11% 0.00" / 0.0" 0.20" / 1.6" 13 07 AM Tue May 06 2025 31F 25F / 98% ESE 9 G 23 MPH 8600 FT 8:1 / 12% 0.00" / 0.0" 0.20" / 1.6" 14 08 AM Tue May 06 2025 31F 25F / 100% ESE 9 G 23 MPH 8800 FT 8:1 / 12% 0.00" / 0.0" 0.20" / 1.6" 15 09 AM Tue May 06 2025 31F 25F / 100% ESE 12 G 29 MPH 8800 FT 8:1 / 12% 0.09" / 0.7" 0.29" / 2.3" 16 10 AM Tue May 06 2025 31F 25F / 100% ESE 9 G 26 MPH 8800 FT 8:1 / 12% 0.16" / 1.3" 0.45" / 3.6" 17 11 AM Tue May 06 2025 32F 26F / 98% ESE 12 G 26 MPH 8900 FT 8:1 / 12% 0.03" / 0.2" 0.48" / 3.8" 18 12 PM Tue May 06 2025 35F 27F / 82% E 7 G 18 MPH 9000 FT 9:1 / 11% 0.00" / 0.0" 0.48" / 3.8" 19 01 PM Tue May 06 2025 39F 29F / 88% E 4 G 17 MPH 9300 FT 10:1 / 10% 0.00" / 0.0" 0.48" / 3.8" 20 02 PM Tue May 06 2025 39F 30F / 98% E 4 G 14 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.48" / 3.8" 21 03 PM Tue May 06 2025 38F 30F / 96% E 4 G 16 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.48" / 3.8" 22 04 PM Tue May 06 2025 37F 29F / 100% E 4 G 14 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.48" / 3.8" 23 05 PM Tue May 06 2025 37F 29F / 100% NNE 8 G 18 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.48" / 3.8" 24 06 PM Tue May 06 2025 34F 29F / 93% N 13 G 27 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.48" / 3.8" 25 07 PM Tue May 06 2025 33F 29F / 92% N 13 G 25 MPH 9500 FT 8:1 / 12% 0.00" / 0.0" 0.48" / 3.8" 26 08 PM Tue May 06 2025 32F 28F / 90% N 12 G 24 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.48" / 3.8" 27 09 PM Tue May 06 2025 31F 29F / 79% N 11 G 21 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.48" / 3.8" 28 10 PM Tue May 06 2025 32F 29F / 77% E 11 G 20 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 29 11 PM Tue May 06 2025 33F 29F / 93% ESE 10 G 21 MPH 9500 FT 9:1 / 11% 0.00" / 0.0" 0.48" / 3.8" 30 12 AM Wed May 07 2025 33F 30F / 85% E 14 G 26 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.48" / 3.8" 31 01 AM Wed May 07 2025 33F 29F / 84% E 17 G 32 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.48" / 3.8" 32 02 AM Wed May 07 2025 32F 29F / 84% E 16 G 30 MPH 9700 FT 7:1 / 14% 0.00" / 0.0" 0.48" / 3.8" 33 03 AM Wed May 07 2025 31F 29F / 93% ESE 17 G 28 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.48" / 3.8" 34 04 AM Wed May 07 2025 31F 28F / 91% E 14 G 26 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.48" / 3.8" 35 05 AM Wed May 07 2025 32F 29F / 79% E 13 G 23 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 36 06 AM Wed May 07 2025 32F 29F / 77% E 13 G 20 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 37 07 AM Wed May 07 2025 31F 30F / 68% E 14 G 22 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.48" / 3.8" 38 08 AM Wed May 07 2025 32F 31F / 67% E 13 G 18 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 39 09 AM Wed May 07 2025 33F 32F / 70% ESE 11 G 17 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 40 10 AM Wed May 07 2025 35F 32F / 64% E 8 G 15 MPH 9400 FT 9:1 / 11% 0.00" / 0.0" 0.48" / 3.8" 41 11 AM Wed May 07 2025 38F 33F / 76% E 8 G 15 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 42 12 PM Wed May 07 2025 40F 35F / 75% E 7 G 14 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 43 01 PM Wed May 07 2025 42F 36F / 74% E 7 G 17 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.48" / 3.8" 44 02 PM Wed May 07 2025 44F 37F / 73% ENE 6 G 13 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.48" / 3.8" 45 03 PM Wed May 07 2025 46F 38F / 74% E 7 G 14 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.48" / 3.8" 46 04 PM Wed May 07 2025 46F 39F / 67% ESE 6 G 12 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.48" / 3.8" 47 05 PM Wed May 07 2025 47F 39F / 62% WNW 4 G 10 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.48" / 3.8" 48 06 PM Wed May 07 2025 44F 38F / 88% NW 7 G 15 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.48" / 3.8"