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 26-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 Wed Feb 26 2025 19F 12F / 79% NNW 17 G 23 MPH 4500 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Wed Feb 26 2025 20F 12F / 84% NNW 11 G 17 MPH 4600 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Wed Feb 26 2025 23F 13F / 89% NNW 12 G 20 MPH 4800 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Wed Feb 26 2025 24F 13F / 88% NNW 13 G 22 MPH 4900 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Wed Feb 26 2025 21F 13F / 71% NNW 12 G 18 MPH 5000 FT 23:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 5 04 PM Wed Feb 26 2025 19F 13F / 62% N 10 G 17 MPH 5100 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 6 05 PM Wed Feb 26 2025 18F 13F / 58% N 11 G 18 MPH 5200 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 06 PM Wed Feb 26 2025 16F 13F / 59% N 12 G 20 MPH 5300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 07 PM Wed Feb 26 2025 14F 12F / 57% NNE 13 G 23 MPH 5200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 08 PM Wed Feb 26 2025 14F 14F / 49% NE 15 G 23 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 09 PM Wed Feb 26 2025 15F 16F / 44% NE 13 G 20 MPH 5100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 10 PM Wed Feb 26 2025 16F 18F / 36% NE 13 G 22 MPH 5000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 11 PM Wed Feb 26 2025 18F 19F / 34% NE 15 G 22 MPH 4500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 12 AM Thu Feb 27 2025 19F 20F / 30% NNE 14 G 22 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 01 AM Thu Feb 27 2025 19F 20F / 29% NNE 12 G 16 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 15 02 AM Thu Feb 27 2025 19F 20F / 27% NNE 12 G 17 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 16 03 AM Thu Feb 27 2025 18F 21F / 26% N 13 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 04 AM Thu Feb 27 2025 19F 21F / 23% NNW 14 G 19 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 05 AM Thu Feb 27 2025 19F 22F / 21% NNW 15 G 19 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 19 06 AM Thu Feb 27 2025 20F 22F / 23% NNW 14 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 07 AM Thu Feb 27 2025 20F 23F / 20% N 14 G 19 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 21 08 AM Thu Feb 27 2025 21F 23F / 22% N 13 G 17 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 09 AM Thu Feb 27 2025 23F 25F / 20% N 12 G 16 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 10 AM Thu Feb 27 2025 26F 26F / 16% N 10 G 14 MPH 4400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 11 AM Thu Feb 27 2025 32F 28F / 19% N 8 G 12 MPH 4700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 12 PM Thu Feb 27 2025 34F 29F / 20% NNW 6 G 11 MPH 5000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 01 PM Thu Feb 27 2025 36F 30F / 21% NW 6 G 9 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 02 PM Thu Feb 27 2025 38F 31F / 20% NW 6 G 9 MPH 5600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 28 03 PM Thu Feb 27 2025 36F 31F / 22% NW 6 G 10 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 29 04 PM Thu Feb 27 2025 33F 31F / 33% W 6 G 9 MPH 6100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 30 05 PM Thu Feb 27 2025 32F 30F / 32% WNW 6 G 12 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 31 06 PM Thu Feb 27 2025 29F 29F / 26% WNW 10 G 13 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 32 07 PM Thu Feb 27 2025 28F 28F / 24% WNW 11 G 16 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 33 08 PM Thu Feb 27 2025 27F 27F / 22% NW 14 G 20 MPH 6400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 34 09 PM Thu Feb 27 2025 26F 27F / 20% NW 12 G 20 MPH 6300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 10 PM Thu Feb 27 2025 25F 26F / 20% WNW 14 G 18 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 11 PM Thu Feb 27 2025 25F 26F / 20% WNW 15 G 20 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 12 AM Fri Feb 28 2025 25F 27F / 22% NW 16 G 20 MPH 5800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 01 AM Fri Feb 28 2025 24F 27F / 17% WNW 14 G 19 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 02 AM Fri Feb 28 2025 25F 26F / 15% WNW 15 G 20 MPH 5300 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 40 03 AM Fri Feb 28 2025 24F 26F / 15% WNW 17 G 21 MPH 5300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 04 AM Fri Feb 28 2025 24F 25F / 20% WNW 18 G 24 MPH 5200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 42 05 AM Fri Feb 28 2025 23F 25F / 16% NW 17 G 23 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 43 06 AM Fri Feb 28 2025 23F 25F / 20% NW 16 G 21 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 44 07 AM Fri Feb 28 2025 22F 25F / 19% NW 15 G 19 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 45 08 AM Fri Feb 28 2025 23F 26F / 14% W 13 G 19 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 46 09 AM Fri Feb 28 2025 25F 27F / 12% WNW 12 G 17 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 47 10 AM Fri Feb 28 2025 27F 28F / 10% NNW 11 G 16 MPH 4600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 48 11 AM Fri Feb 28 2025 35F 32F / 14% NNW 8 G 15 MPH 5000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0"