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 27-Feb-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 11 AM Thu Feb 27 2025 33F 29F / 18% NE 7 G 12 MPH 4400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Thu Feb 27 2025 35F 29F / 19% NW 5 G 7 MPH 4700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Thu Feb 27 2025 37F 30F / 20% WSW 4 G 8 MPH 5000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Thu Feb 27 2025 37F 30F / 27% WNW 4 G 9 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Thu Feb 27 2025 36F 31F / 25% WNW 5 G 8 MPH 5700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 04 PM Thu Feb 27 2025 34F 31F / 21% WNW 6 G 11 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 05 PM Thu Feb 27 2025 32F 30F / 21% W 6 G 12 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 7 06 PM Thu Feb 27 2025 31F 30F / 16% W 7 G 10 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 07 PM Thu Feb 27 2025 28F 28F / 17% WNW 8 G 14 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 08 PM Thu Feb 27 2025 27F 28F / 17% WNW 11 G 14 MPH 6100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 10 09 PM Thu Feb 27 2025 26F 27F / 19% NW 11 G 16 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 11 10 PM Thu Feb 27 2025 26F 27F / 15% WNW 12 G 16 MPH 5900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 11 PM Thu Feb 27 2025 26F 27F / 19% WNW 12 G 18 MPH 5700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 12 AM Fri Feb 28 2025 26F 27F / 17% WNW 14 G 20 MPH 5000 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 01 AM Fri Feb 28 2025 26F 27F / 16% NW 13 G 19 MPH 4700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 02 AM Fri Feb 28 2025 26F 27F / 17% NW 15 G 19 MPH 4700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 03 AM Fri Feb 28 2025 26F 27F / 18% NW 16 G 20 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 04 AM Fri Feb 28 2025 25F 27F / 18% NW 17 G 23 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 05 AM Fri Feb 28 2025 25F 26F / 17% NW 15 G 21 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 06 AM Fri Feb 28 2025 25F 26F / 14% NNW 14 G 19 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 20 07 AM Fri Feb 28 2025 25F 26F / 14% NNW 16 G 20 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 21 08 AM Fri Feb 28 2025 25F 26F / 15% NNW 14 G 18 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 09 AM Fri Feb 28 2025 27F 27F / 17% NNW 13 G 17 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 23 10 AM Fri Feb 28 2025 29F 29F / 15% NNW 11 G 17 MPH 4800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 24 11 AM Fri Feb 28 2025 35F 31F / 16% N 10 G 16 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 12 PM Fri Feb 28 2025 37F 32F / 20% NNW 10 G 16 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 26 01 PM Fri Feb 28 2025 39F 32F / 20% NNW 9 G 16 MPH 6100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 27 02 PM Fri Feb 28 2025 39F 33F / 20% NNW 9 G 16 MPH 6400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 03 PM Fri Feb 28 2025 38F 33F / 21% NNW 8 G 15 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 04 PM Fri Feb 28 2025 36F 32F / 22% NNW 8 G 14 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 05 PM Fri Feb 28 2025 32F 31F / 20% N 8 G 14 MPH 7200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 06 PM Fri Feb 28 2025 30F 30F / 20% N 10 G 14 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 07 PM Fri Feb 28 2025 28F 29F / 21% NNE 9 G 14 MPH 7100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 08 PM Fri Feb 28 2025 27F 28F / 25% N 11 G 15 MPH 6700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 09 PM Fri Feb 28 2025 28F 29F / 24% NNE 11 G 15 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 10 PM Fri Feb 28 2025 27F 28F / 28% N 10 G 13 MPH 6100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 11 PM Fri Feb 28 2025 27F 29F / 28% NNW 10 G 12 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 12 AM Sat Mar 01 2025 27F 29F / 33% WSW 11 G 13 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 38 01 AM Sat Mar 01 2025 28F 29F / 30% WSW 10 G 12 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 39 02 AM Sat Mar 01 2025 28F 29F / 29% WSW 10 G 11 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 03 AM Sat Mar 01 2025 28F 29F / 29% W 10 G 13 MPH 5400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 41 04 AM Sat Mar 01 2025 27F 28F / 30% WSW 11 G 14 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 05 AM Sat Mar 01 2025 26F 27F / 32% WSW 10 G 13 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 06 AM Sat Mar 01 2025 27F 28F / 27% SW 10 G 13 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 07 AM Sat Mar 01 2025 26F 28F / 29% SW 10 G 14 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 45 08 AM Sat Mar 01 2025 27F 28F / 26% SSE 10 G 14 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 09 AM Sat Mar 01 2025 29F 30F / 21% ESE 8 G 13 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 10 AM Sat Mar 01 2025 33F 31F / 21% E 8 G 13 MPH 6400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 11 AM Sat Mar 01 2025 38F 33F / 20% ESE 6 G 15 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0"