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 09-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 Thu May 08 2025 47F 41F / 54% WNW 10 G 16 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Thu May 08 2025 44F 40F / 47% WNW 10 G 14 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Thu May 08 2025 41F 38F / 58% WNW 11 G 14 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Thu May 08 2025 39F 38F / 53% W 10 G 13 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Thu May 08 2025 39F 37F / 56% WSW 9 G 12 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Thu May 08 2025 39F 38F / 56% W 11 G 12 MPH 11400 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Fri May 09 2025 38F 37F / 54% W 11 G 14 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Fri May 09 2025 38F 37F / 57% W 11 G 13 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Fri May 09 2025 38F 36F / 64% WNW 11 G 15 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Fri May 09 2025 38F 36F / 63% WNW 12 G 16 MPH 10300 FT 3:1 / 33% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Fri May 09 2025 37F 36F / 59% WNW 13 G 17 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Fri May 09 2025 37F 36F / 51% WNW 12 G 18 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Fri May 09 2025 36F 35F / 57% NNW 13 G 18 MPH 10200 FT 5:1 / 20% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Fri May 09 2025 36F 35F / 57% N 14 G 21 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Fri May 09 2025 37F 35F / 55% NNE 15 G 21 MPH 10200 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Fri May 09 2025 38F 37F / 56% NE 12 G 22 MPH 10100 FT 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Fri May 09 2025 41F 37F / 45% ENE 12 G 20 MPH 10000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Fri May 09 2025 45F 39F / 39% ENE 11 G 18 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Fri May 09 2025 48F 40F / 38% NE 6 G 13 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Fri May 09 2025 50F 41F / 38% NNW 6 G 12 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Fri May 09 2025 52F 43F / 33% NW 6 G 12 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Fri May 09 2025 54F 44F / 33% N 7 G 12 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Fri May 09 2025 53F 45F / 43% WNW 6 G 11 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Fri May 09 2025 54F 46F / 43% WNW 7 G 11 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Fri May 09 2025 50F 46F / 32% WNW 8 G 14 MPH 11100 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Fri May 09 2025 47F 44F / 41% WNW 11 G 17 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Fri May 09 2025 44F 42F / 44% W 10 G 16 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Fri May 09 2025 42F 41F / 42% WNW 9 G 14 MPH 10300 FT 4:1 / 25% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Fri May 09 2025 42F 41F / 28% S 9 G 14 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Fri May 09 2025 42F 42F / 25% SSE 10 G 15 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Sat May 10 2025 42F 42F / 34% SE 13 G 19 MPH 10500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 31 01 AM Sat May 10 2025 43F 42F / 29% SSE 13 G 20 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 32 02 AM Sat May 10 2025 43F 41F / 29% SSE 14 G 20 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 33 03 AM Sat May 10 2025 42F 41F / 29% S 14 G 21 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 34 04 AM Sat May 10 2025 41F 41F / 29% S 14 G 23 MPH 11000 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 35 05 AM Sat May 10 2025 40F 40F / 33% S 16 G 26 MPH 10800 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 36 06 AM Sat May 10 2025 40F 40F / 36% SSW 16 G 25 MPH 10600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 37 07 AM Sat May 10 2025 39F 40F / 35% SSW 17 G 24 MPH 10700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 38 08 AM Sat May 10 2025 39F 40F / 35% SSW 15 G 22 MPH 10900 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 39 09 AM Sat May 10 2025 40F 41F / 32% SW 14 G 21 MPH 11200 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 40 10 AM Sat May 10 2025 44F 42F / 39% SW 12 G 20 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 41 11 AM Sat May 10 2025 48F 43F / 42% SW 10 G 17 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 42 12 PM Sat May 10 2025 51F 45F / 32% SW 8 G 14 MPH 11300 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 43 01 PM Sat May 10 2025 53F 47F / 31% SW 7 G 16 MPH 11500 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 44 02 PM Sat May 10 2025 55F 47F / 32% SSW 6 G 13 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 45 03 PM Sat May 10 2025 56F 48F / 32% SW 6 G 13 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 46 04 PM Sat May 10 2025 55F 48F / 32% SW 9 G 19 MPH 11600 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 47 05 PM Sat May 10 2025 55F 49F / 39% SSW 10 G 22 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0" 48 06 PM Sat May 10 2025 52F 48F / 46% SSW 12 G 23 MPH 11700 FT 0:1 / -% 0.00" / 0.0" 0.00" / 0.0"