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 06Z 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 12 AM Sat May 03 2025 36F 35F / 48% SSE 12 G 21 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Sat May 03 2025 35F 35F / 44% S 15 G 23 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Sat May 03 2025 36F 35F / 41% S 15 G 23 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Sat May 03 2025 36F 35F / 40% S 14 G 23 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Sat May 03 2025 35F 34F / 39% S 15 G 23 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Sat May 03 2025 36F 34F / 42% SSW 17 G 27 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Sat May 03 2025 35F 34F / 45% SSW 17 G 27 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Sat May 03 2025 34F 33F / 46% SSW 16 G 26 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Sat May 03 2025 34F 33F / 44% SSW 16 G 24 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Sat May 03 2025 35F 34F / 40% SW 15 G 21 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Sat May 03 2025 38F 35F / 43% WSW 12 G 19 MPH 9200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Sat May 03 2025 42F 36F / 43% WSW 8 G 15 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Sat May 03 2025 46F 38F / 45% SSW 7 G 12 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Sat May 03 2025 49F 39F / 40% SSE 5 G 10 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Sat May 03 2025 50F 40F / 42% S 5 G 10 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Sat May 03 2025 51F 42F / 39% SSW 4 G 10 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Sat May 03 2025 51F 41F / 35% WSW 4 G 10 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Sat May 03 2025 50F 41F / 34% WSW 4 G 10 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Sat May 03 2025 47F 41F / 37% SSE 5 G 8 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Sat May 03 2025 45F 40F / 41% WSW 6 G 9 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Sat May 03 2025 43F 39F / 33% NNW 6 G 11 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Sat May 03 2025 41F 39F / 36% E 9 G 17 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Sat May 03 2025 41F 38F / 36% ESE 11 G 21 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Sat May 03 2025 40F 37F / 32% SSE 10 G 20 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Sun May 04 2025 37F 36F / 45% S 11 G 21 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Sun May 04 2025 37F 36F / 43% SSW 12 G 21 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Sun May 04 2025 38F 35F / 41% SSW 13 G 23 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Sun May 04 2025 37F 35F / 47% SSW 10 G 18 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Sun May 04 2025 37F 34F / 55% S 10 G 17 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Sun May 04 2025 37F 34F / 54% SSE 10 G 18 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Sun May 04 2025 37F 34F / 51% SSE 10 G 16 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Sun May 04 2025 35F 32F / 57% SSE 9 G 18 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Sun May 04 2025 37F 33F / 53% SE 10 G 19 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 33 09 AM Sun May 04 2025 38F 33F / 62% SE 10 G 22 MPH 9900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 34 10 AM Sun May 04 2025 40F 33F / 64% ESE 12 G 26 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 35 11 AM Sun May 04 2025 42F 34F / 65% ESE 8 G 25 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 36 12 PM Sun May 04 2025 45F 36F / 61% ESE 8 G 26 MPH 10100 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 37 01 PM Sun May 04 2025 42F 35F / 70% ESE 7 G 23 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 38 02 PM Sun May 04 2025 44F 36F / 76% E 11 G 33 MPH 10000 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 39 03 PM Sun May 04 2025 42F 35F / 71% ESE 11 G 30 MPH 9900 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 40 04 PM Sun May 04 2025 42F 34F / 80% E 11 G 29 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 41 05 PM Sun May 04 2025 46F 37F / 69% ESE 9 G 22 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 42 06 PM Sun May 04 2025 43F 37F / 76% ESE 8 G 21 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 07 PM Sun May 04 2025 41F 36F / 81% ESE 12 G 32 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 08 PM Sun May 04 2025 37F 33F / 93% SE 10 G 24 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 09 PM Sun May 04 2025 36F 33F / 82% ESE 10 G 23 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 10 PM Sun May 04 2025 35F 32F / 87% ESE 9 G 19 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 11 PM Sun May 04 2025 35F 32F / 93% ESE 5 G 16 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 12 AM Mon May 05 2025 35F 31F / 83% E 6 G 13 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"