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 04-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 Sat May 03 2025 47F 41F / 43% ESE 6 G 12 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Sat May 03 2025 45F 40F / 45% SE 5 G 12 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Sat May 03 2025 42F 39F / 39% SE 6 G 12 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Sat May 03 2025 41F 38F / 38% ESE 9 G 18 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Sat May 03 2025 41F 38F / 40% ESE 9 G 21 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Sat May 03 2025 38F 36F / 48% SW 11 G 21 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Sun May 04 2025 38F 35F / 42% SW 9 G 18 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Sun May 04 2025 36F 35F / 52% SW 10 G 20 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Sun May 04 2025 37F 34F / 48% WSW 9 G 16 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Sun May 04 2025 38F 34F / 48% SSW 9 G 17 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Sun May 04 2025 37F 34F / 50% SSW 11 G 19 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Sun May 04 2025 37F 33F / 59% SW 9 G 16 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Sun May 04 2025 36F 33F / 62% SSE 9 G 15 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Sun May 04 2025 35F 31F / 69% S 10 G 19 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Sun May 04 2025 36F 31F / 70% SE 8 G 18 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Sun May 04 2025 37F 31F / 76% SE 11 G 24 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Sun May 04 2025 37F 30F / 79% ESE 6 G 22 MPH 9700 FT 9:1 / 11% 0.01" / 0.1" 0.01" / 0.1" 17 11 AM Sun May 04 2025 39F 31F / 90% E 9 G 21 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.01" / 0.1" 18 12 PM Sun May 04 2025 41F 32F / 90% ESE 6 G 21 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.01" / 0.1" 19 01 PM Sun May 04 2025 44F 34F / 75% ESE 10 G 27 MPH 10300 FT 0:1 / -% 0.01" / 0.0" 0.02" / 0.1" 20 02 PM Sun May 04 2025 41F 33F / 83% E 4 G 12 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.1" 21 03 PM Sun May 04 2025 46F 37F / 64% ESE 7 G 19 MPH 9600 FT 10:1 / 10% 0.00" / 0.0" 0.02" / 0.1" 22 04 PM Sun May 04 2025 44F 35F / 69% SE 6 G 19 MPH 10000 FT 7:1 / 14% 0.01" / 0.1" 0.03" / 0.2" 23 05 PM Sun May 04 2025 47F 37F / 64% ESE 8 G 20 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.03" / 0.2" 24 06 PM Sun May 04 2025 36F 31F / 96% SE 7 G 16 MPH 10400 FT 0:1 / -% 0.06" / 0.0" 0.09" / 0.2" 25 07 PM Sun May 04 2025 40F 33F / 90% ESE 6 G 15 MPH 10600 FT 0:1 / -% 0.03" / 0.0" 0.12" / 0.2" 26 08 PM Sun May 04 2025 39F 33F / 78% ESE 8 G 17 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 27 09 PM Sun May 04 2025 36F 31F / 90% ESE 9 G 21 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 28 10 PM Sun May 04 2025 35F 30F / 81% SE 7 G 14 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 29 11 PM Sun May 04 2025 34F 30F / 88% E 6 G 12 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 30 12 AM Mon May 05 2025 35F 30F / 92% NE 7 G 12 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 31 01 AM Mon May 05 2025 34F 29F / 91% NE 8 G 16 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 32 02 AM Mon May 05 2025 34F 30F / 81% NE 12 G 21 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 33 03 AM Mon May 05 2025 34F 29F / 92% N 14 G 23 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 34 04 AM Mon May 05 2025 34F 28F / 100% NE 10 G 21 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 35 05 AM Mon May 05 2025 34F 28F / 100% N 14 G 25 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 36 06 AM Mon May 05 2025 34F 28F / 100% NNE 13 G 24 MPH 10300 FT 0:1 / -% 0.00" / 0.0" 0.12" / 0.2" 37 07 AM Mon May 05 2025 33F 28F / 100% NE 15 G 25 MPH 10300 FT 3:1 / 33% 0.01" / 0.0" 0.13" / 0.2" 38 08 AM Mon May 05 2025 33F 28F / 100% NE 12 G 18 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.13" / 0.2" 39 09 AM Mon May 05 2025 34F 28F / 100% ENE 11 G 22 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.13" / 0.2" 40 10 AM Mon May 05 2025 34F 29F / 100% E 9 G 17 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.13" / 0.2" 41 11 AM Mon May 05 2025 36F 30F / 100% ESE 7 G 15 MPH 10300 FT 3:1 / 33% 0.03" / 0.1" 0.16" / 0.3" 42 12 PM Mon May 05 2025 36F 31F / 100% ESE 8 G 18 MPH 10400 FT 0:1 / -% 0.09" / 0.0" 0.25" / 0.3" 43 01 PM Mon May 05 2025 37F 30F / 84% ESE 10 G 23 MPH 10400 FT 0:1 / -% 0.12" / 0.0" 0.37" / 0.3" 44 02 PM Mon May 05 2025 40F 33F / 82% ESE 7 G 21 MPH 9800 FT 7:1 / 14% 0.02" / 0.1" 0.39" / 0.4" 45 03 PM Mon May 05 2025 39F 32F / 86% ESE 8 G 20 MPH 9400 FT 10:1 / 10% 0.01" / 0.1" 0.40" / 0.5" 46 04 PM Mon May 05 2025 43F 35F / 86% E 6 G 18 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.40" / 0.5" 47 05 PM Mon May 05 2025 42F 33F / 100% ESE 3 G 12 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.40" / 0.5" 48 06 PM Mon May 05 2025 38F 32F / 97% WSW 4 G 13 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.40" / 0.5"