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 03-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 Sat May 03 2025 34F 34F / 44% SW 16 G 24 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Sat May 03 2025 35F 34F / 40% SSW 14 G 21 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Sat May 03 2025 35F 34F / 41% SSW 14 G 21 MPH 9800 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Sat May 03 2025 35F 34F / 41% SSW 13 G 22 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Sat May 03 2025 37F 35F / 45% S 13 G 22 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Sat May 03 2025 40F 36F / 50% S 12 G 22 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Sat May 03 2025 45F 37F / 49% S 10 G 19 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Sat May 03 2025 48F 39F / 43% SSW 8 G 16 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Sat May 03 2025 49F 40F / 37% SSW 6 G 14 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Sat May 03 2025 51F 41F / 36% SSW 6 G 13 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Sat May 03 2025 50F 41F / 36% SW 6 G 14 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Sat May 03 2025 49F 41F / 30% SW 8 G 15 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Sat May 03 2025 47F 41F / 31% S 5 G 12 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Sat May 03 2025 44F 39F / 51% SSW 6 G 10 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Sat May 03 2025 42F 38F / 40% SE 8 G 15 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Sat May 03 2025 40F 37F / 39% E 7 G 13 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Sat May 03 2025 39F 37F / 47% ESE 9 G 20 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Sat May 03 2025 39F 36F / 36% SE 11 G 23 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Sun May 04 2025 39F 37F / 35% SSE 12 G 23 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Sun May 04 2025 38F 35F / 43% S 12 G 22 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Sun May 04 2025 36F 33F / 52% S 12 G 24 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Sun May 04 2025 36F 33F / 57% S 10 G 21 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Sun May 04 2025 35F 33F / 60% SSW 10 G 19 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Sun May 04 2025 35F 33F / 57% S 10 G 19 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Sun May 04 2025 36F 33F / 57% SSE 10 G 19 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Sun May 04 2025 36F 32F / 57% SSE 10 G 20 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Sun May 04 2025 36F 32F / 63% ESE 10 G 23 MPH 9800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Sun May 04 2025 38F 33F / 65% ESE 9 G 23 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Sun May 04 2025 40F 33F / 66% SE 10 G 25 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Sun May 04 2025 42F 33F / 68% SE 9 G 22 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Sun May 04 2025 44F 35F / 63% ESE 6 G 20 MPH 10000 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Sun May 04 2025 37F 32F / 85% ESE 10 G 28 MPH 10200 FT 3:1 / 33% 0.02" / 0.1" 0.02" / 0.1" 32 02 PM Sun May 04 2025 45F 35F / 63% ESE 9 G 26 MPH 9700 FT 7:1 / 14% 0.01" / 0.1" 0.03" / 0.2" 33 03 PM Sun May 04 2025 38F 32F / 79% ESE 12 G 32 MPH 10400 FT 0:1 / -% 0.05" / 0.0" 0.08" / 0.2" 34 04 PM Sun May 04 2025 42F 34F / 70% ESE 8 G 26 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.08" / 0.2" 35 05 PM Sun May 04 2025 44F 36F / 67% SE 7 G 16 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.08" / 0.2" 36 06 PM Sun May 04 2025 43F 36F / 63% W 4 G 11 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.08" / 0.2" 37 07 PM Sun May 04 2025 38F 32F / 100% SE 10 G 16 MPH 10500 FT 0:1 / -% 0.02" / 0.0" 0.10" / 0.2" 38 08 PM Sun May 04 2025 37F 33F / 82% ESE 8 G 17 MPH 10500 FT 0:1 / -% 0.06" / 0.0" 0.16" / 0.2" 39 09 PM Sun May 04 2025 36F 33F / 80% E 7 G 18 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.16" / 0.2" 40 10 PM Sun May 04 2025 34F 30F / 97% E 4 G 13 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.16" / 0.2" 41 11 PM Sun May 04 2025 33F 30F / 99% ENE 5 G 10 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.16" / 0.2" 42 12 AM Mon May 05 2025 33F 29F / 99% ENE 9 G 19 MPH 10300 FT 5:1 / 20% 0.00" / 0.0" 0.16" / 0.2" 43 01 AM Mon May 05 2025 32F 29F / 100% NE 12 G 23 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.16" / 0.2" 44 02 AM Mon May 05 2025 34F 29F / 100% NNE 13 G 26 MPH 10300 FT 3:1 / 33% 0.01" / 0.0" 0.17" / 0.2" 45 03 AM Mon May 05 2025 34F 28F / 100% NE 13 G 25 MPH 10200 FT 4:1 / 25% 0.01" / 0.0" 0.18" / 0.2" 46 04 AM Mon May 05 2025 32F 27F / 100% NNE 15 G 25 MPH 10100 FT 4:1 / 25% 0.06" / 0.2" 0.24" / 0.4" 47 05 AM Mon May 05 2025 33F 28F / 100% N 16 G 28 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.24" / 0.4" 48 06 AM Mon May 05 2025 32F 27F / 100% NNE 17 G 26 MPH 10000 FT 5:1 / 20% 0.00" / 0.0" 0.24" / 0.4"