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 18Z 02-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 PM Fri May 02 2025 40F 33F / 59% SW 6 G 12 MPH 9100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 01 PM Fri May 02 2025 42F 35F / 62% SW 4 G 8 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 02 PM Fri May 02 2025 45F 36F / 61% WSW 4 G 9 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 03 PM Fri May 02 2025 47F 38F / 62% NW 3 G 7 MPH 10000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 04 PM Fri May 02 2025 46F 38F / 59% WNW 5 G 10 MPH 10100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 05 PM Fri May 02 2025 45F 38F / 52% W 6 G 11 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 06 PM Fri May 02 2025 41F 37F / 41% WSW 5 G 9 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 07 PM Fri May 02 2025 40F 37F / 33% S 6 G 11 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 8 08 PM Fri May 02 2025 38F 35F / 35% SSE 9 G 15 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 9 09 PM Fri May 02 2025 38F 35F / 39% SSE 11 G 19 MPH 10200 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 10 10 PM Fri May 02 2025 37F 36F / 38% S 12 G 19 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 11 11 PM Fri May 02 2025 37F 36F / 36% SSW 12 G 18 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 12 12 AM Sat May 03 2025 37F 36F / 36% SSW 13 G 21 MPH 9900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 01 AM Sat May 03 2025 37F 35F / 42% SSW 14 G 23 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 02 AM Sat May 03 2025 37F 35F / 43% SSW 16 G 24 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 03 AM Sat May 03 2025 37F 35F / 43% SSW 16 G 24 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 04 AM Sat May 03 2025 36F 34F / 44% SSW 17 G 27 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 17 05 AM Sat May 03 2025 36F 34F / 39% SSW 18 G 27 MPH 9600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 06 AM Sat May 03 2025 35F 34F / 40% SW 18 G 25 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 07 AM Sat May 03 2025 35F 34F / 41% SW 15 G 20 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 08 AM Sat May 03 2025 34F 34F / 45% WSW 13 G 17 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 09 AM Sat May 03 2025 35F 34F / 46% WSW 12 G 16 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 10 AM Sat May 03 2025 38F 35F / 45% W 9 G 13 MPH 9300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 11 AM Sat May 03 2025 43F 37F / 43% WSW 8 G 14 MPH 9400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 12 PM Sat May 03 2025 47F 38F / 37% SW 7 G 12 MPH 9700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 01 PM Sat May 03 2025 48F 40F / 35% SW 5 G 9 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 26 02 PM Sat May 03 2025 50F 41F / 33% SSW 4 G 9 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 27 03 PM Sat May 03 2025 51F 42F / 42% SSW 5 G 10 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 28 04 PM Sat May 03 2025 52F 42F / 31% WSW 4 G 10 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 05 PM Sat May 03 2025 51F 42F / 33% SW 4 G 10 MPH 10400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 06 PM Sat May 03 2025 47F 41F / 37% SSE 5 G 10 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 31 07 PM Sat May 03 2025 45F 41F / 42% WNW 6 G 10 MPH 10400 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 32 08 PM Sat May 03 2025 43F 39F / 32% E 9 G 17 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 33 09 PM Sat May 03 2025 40F 38F / 36% ESE 11 G 21 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 10 PM Sat May 03 2025 39F 37F / 38% ESE 12 G 24 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 11 PM Sat May 03 2025 40F 38F / 28% SE 13 G 27 MPH 10100 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 36 12 AM Sun May 04 2025 38F 36F / 39% SSW 15 G 28 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 37 01 AM Sun May 04 2025 37F 36F / 49% SW 16 G 28 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 38 02 AM Sun May 04 2025 36F 35F / 53% SW 12 G 19 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 39 03 AM Sun May 04 2025 36F 34F / 48% SW 11 G 19 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 40 04 AM Sun May 04 2025 37F 35F / 49% SW 11 G 18 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 41 05 AM Sun May 04 2025 37F 34F / 57% S 11 G 21 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 42 06 AM Sun May 04 2025 37F 34F / 57% S 12 G 20 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 43 07 AM Sun May 04 2025 36F 33F / 65% SSE 10 G 18 MPH 9900 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 44 08 AM Sun May 04 2025 37F 34F / 58% SE 7 G 20 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 45 09 AM Sun May 04 2025 39F 35F / 59% ESE 9 G 20 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 46 10 AM Sun May 04 2025 40F 35F / 59% ESE 10 G 29 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 47 11 AM Sun May 04 2025 43F 35F / 68% ESE 10 G 25 MPH 10000 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 48 12 PM Sun May 04 2025 46F 37F / 67% ESE 7 G 22 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0"