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 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 PM Sun May 04 2025 41F 34F / 76% SE 5 G 12 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Sun May 04 2025 36F 31F / 82% NNW 6 G 11 MPH 9900 FT 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 2 08 PM Sun May 04 2025 35F 31F / 90% E 5 G 12 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 3 09 PM Sun May 04 2025 34F 29F / 96% E 6 G 16 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 4 10 PM Sun May 04 2025 33F 29F / 100% NE 2 G 7 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.1" 5 11 PM Sun May 04 2025 33F 28F / 100% NNE 4 G 9 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 6 12 AM Mon May 05 2025 33F 29F / 97% NE 5 G 10 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 7 01 AM Mon May 05 2025 32F 30F / 89% NNE 5 G 10 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 8 02 AM Mon May 05 2025 33F 30F / 87% NE 7 G 11 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.01" / 0.1" 9 03 AM Mon May 05 2025 33F 29F / 90% NNE 10 G 15 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.01" / 0.1" 10 04 AM Mon May 05 2025 33F 29F / 91% NE 9 G 16 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 11 05 AM Mon May 05 2025 33F 29F / 100% NE 10 G 17 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 12 06 AM Mon May 05 2025 32F 29F / 92% NE 10 G 16 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 13 07 AM Mon May 05 2025 32F 29F / 92% ENE 8 G 16 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.01" / 0.1" 14 08 AM Mon May 05 2025 33F 29F / 100% NNE 9 G 16 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.01" / 0.1" 15 09 AM Mon May 05 2025 33F 28F / 100% N 10 G 18 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.1" 16 10 AM Mon May 05 2025 34F 28F / 100% N 8 G 16 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.1" 17 11 AM Mon May 05 2025 36F 29F / 100% NNW 11 G 17 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.1" 18 12 PM Mon May 05 2025 37F 29F / 100% NNW 11 G 19 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.01" / 0.1" 19 01 PM Mon May 05 2025 39F 30F / 95% NW 16 G 29 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.01" / 0.1" 20 02 PM Mon May 05 2025 37F 30F / 100% NNW 8 G 15 MPH 10500 FT 0:1 / -% 0.01" / 0.0" 0.02" / 0.1" 21 03 PM Mon May 05 2025 36F 31F / 92% SE 8 G 19 MPH 10700 FT 0:1 / -% 0.24" / 0.0" 0.26" / 0.1" 22 04 PM Mon May 05 2025 36F 30F / 76% ENE 11 G 21 MPH 10700 FT 0:1 / -% 0.12" / 0.0" 0.38" / 0.1" 23 05 PM Mon May 05 2025 35F 30F / 79% ESE 7 G 18 MPH 10600 FT 0:1 / -% 0.02" / 0.0" 0.40" / 0.1" 24 06 PM Mon May 05 2025 35F 31F / 60% NE 5 G 10 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.40" / 0.1" 25 07 PM Mon May 05 2025 36F 29F / 100% NNW 11 G 18 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.40" / 0.1" 26 08 PM Mon May 05 2025 34F 28F / 100% NW 11 G 22 MPH 10100 FT 4:1 / 25% 0.01" / 0.0" 0.41" / 0.1" 27 09 PM Mon May 05 2025 32F 27F / 100% WNW 10 G 20 MPH 9500 FT 9:1 / 11% 0.01" / 0.1" 0.42" / 0.2" 28 10 PM Mon May 05 2025 32F 27F / 100% W 11 G 18 MPH 9400 FT 10:1 / 10% 0.00" / 0.0" 0.42" / 0.2" 29 11 PM Mon May 05 2025 31F 26F / 100% SSE 11 G 17 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.42" / 0.2" 30 12 AM Tue May 06 2025 31F 25F / 100% SSE 14 G 17 MPH 8800 FT 9:1 / 11% 0.03" / 0.3" 0.45" / 0.5" 31 01 AM Tue May 06 2025 30F 25F / 100% NW 11 G 17 MPH 8500 FT 9:1 / 11% 0.02" / 0.2" 0.47" / 0.7" 32 02 AM Tue May 06 2025 30F 25F / 100% NW 9 G 14 MPH 8600 FT 9:1 / 11% 0.02" / 0.2" 0.49" / 0.9" 33 03 AM Tue May 06 2025 30F 24F / 98% NW 13 G 18 MPH 8600 FT 9:1 / 11% 0.03" / 0.3" 0.52" / 1.2" 34 04 AM Tue May 06 2025 31F 24F / 93% NW 12 G 20 MPH 8600 FT 9:1 / 11% 0.01" / 0.1" 0.53" / 1.3" 35 05 AM Tue May 06 2025 31F 24F / 96% NW 9 G 15 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.53" / 1.3" 36 06 AM Tue May 06 2025 30F 24F / 100% SW 5 G 9 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.53" / 1.3" 37 07 AM Tue May 06 2025 30F 25F / 100% ESE 5 G 9 MPH 7900 FT 10:1 / 10% 0.02" / 0.2" 0.55" / 1.5" 38 08 AM Tue May 06 2025 30F 25F / 100% E 7 G 12 MPH 7700 FT 10:1 / 10% 0.03" / 0.3" 0.58" / 1.8" 39 09 AM Tue May 06 2025 31F 25F / 100% SE 10 G 25 MPH 7400 FT 8:1 / 12% 0.09" / 0.7" 0.67" / 2.5" 40 10 AM Tue May 06 2025 31F 26F / 100% ESE 13 G 29 MPH 7600 FT 8:1 / 12% 0.11" / 0.9" 0.78" / 3.4" 41 11 AM Tue May 06 2025 31F 27F / 99% ESE 10 G 26 MPH 7200 FT 9:1 / 11% 0.02" / 0.2" 0.80" / 3.6" 42 12 PM Tue May 06 2025 34F 28F / 96% ESE 12 G 29 MPH 7900 FT 7:1 / 14% 0.01" / 0.1" 0.81" / 3.7" 43 01 PM Tue May 06 2025 34F 29F / 91% ESE 10 G 27 MPH 8500 FT 8:1 / 12% 0.04" / 0.3" 0.85" / 4.0" 44 02 PM Tue May 06 2025 37F 31F / 86% ESE 9 G 23 MPH 9000 FT 8:1 / 12% 0.00" / 0.0" 0.85" / 4.0" 45 03 PM Tue May 06 2025 39F 32F / 86% E 11 G 24 MPH 9100 FT 8:1 / 12% 0.00" / 0.0" 0.85" / 4.0" 46 04 PM Tue May 06 2025 39F 31F / 99% E 7 G 19 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.85" / 4.0" 47 05 PM Tue May 06 2025 37F 31F / 98% NNE 7 G 17 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.85" / 4.0" 48 06 PM Tue May 06 2025 37F 31F / 99% N 12 G 20 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.85" / 4.0"