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 12Z 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 05 AM Wed Feb 26 2025 11F 8F / 73% NW 22 G 33 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Wed Feb 26 2025 10F 7F / 73% NW 23 G 34 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Wed Feb 26 2025 11F 8F / 62% NW 23 G 34 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Wed Feb 26 2025 10F 8F / 67% NW 23 G 33 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Wed Feb 26 2025 11F 8F / 75% NW 20 G 29 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Wed Feb 26 2025 15F 10F / 75% NW 18 G 26 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Wed Feb 26 2025 17F 10F / 77% NW 16 G 26 MPH 4300 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Wed Feb 26 2025 20F 12F / 81% NNW 15 G 23 MPH 4500 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Wed Feb 26 2025 21F 13F / 79% NNW 13 G 21 MPH 4800 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Wed Feb 26 2025 23F 13F / 67% NNW 12 G 21 MPH 5000 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Wed Feb 26 2025 21F 12F / 73% NNW 13 G 21 MPH 5200 FT 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Wed Feb 26 2025 19F 12F / 67% NNW 14 G 22 MPH 5300 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Wed Feb 26 2025 18F 13F / 57% N 13 G 25 MPH 5300 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Wed Feb 26 2025 16F 13F / 51% NNE 13 G 21 MPH 5100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Wed Feb 26 2025 14F 13F / 54% NNE 12 G 20 MPH 5000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 15 08 PM Wed Feb 26 2025 14F 14F / 53% NE 12 G 20 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 09 PM Wed Feb 26 2025 12F 14F / 51% NNE 11 G 17 MPH 4400 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 10 PM Wed Feb 26 2025 13F 16F / 43% NE 12 G 16 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 18 11 PM Wed Feb 26 2025 16F 17F / 42% NE 14 G 20 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 12 AM Thu Feb 27 2025 18F 19F / 37% NNE 14 G 20 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 20 01 AM Thu Feb 27 2025 18F 19F / 36% NNE 13 G 17 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 21 02 AM Thu Feb 27 2025 19F 20F / 32% NNE 13 G 19 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 22 03 AM Thu Feb 27 2025 19F 20F / 29% N 14 G 19 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 04 AM Thu Feb 27 2025 19F 20F / 26% N 16 G 20 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 05 AM Thu Feb 27 2025 19F 21F / 24% N 15 G 21 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 06 AM Thu Feb 27 2025 19F 21F / 22% N 15 G 20 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 07 AM Thu Feb 27 2025 20F 22F / 24% N 15 G 21 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 27 08 AM Thu Feb 27 2025 21F 23F / 21% N 14 G 20 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 09 AM Thu Feb 27 2025 23F 24F / 19% N 13 G 19 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 10 AM Thu Feb 27 2025 25F 25F / 17% NNE 12 G 15 MPH 4300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 11 AM Thu Feb 27 2025 30F 27F / 18% NNE 9 G 15 MPH 4600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 12 PM Thu Feb 27 2025 33F 28F / 19% NNE 7 G 12 MPH 4900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 01 PM Thu Feb 27 2025 36F 29F / 18% N 6 G 10 MPH 5200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 02 PM Thu Feb 27 2025 36F 29F / 20% NNW 6 G 9 MPH 5500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 34 03 PM Thu Feb 27 2025 34F 30F / 21% NNW 5 G 10 MPH 5700 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 35 04 PM Thu Feb 27 2025 33F 30F / 25% NNW 6 G 9 MPH 5900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 36 05 PM Thu Feb 27 2025 31F 30F / 25% NNW 7 G 10 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 37 06 PM Thu Feb 27 2025 30F 29F / 17% NNW 8 G 10 MPH 6100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 38 07 PM Thu Feb 27 2025 29F 29F / 17% NW 9 G 11 MPH 6200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 39 08 PM Thu Feb 27 2025 27F 28F / 22% NNW 9 G 13 MPH 6100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 40 09 PM Thu Feb 27 2025 26F 27F / 23% NW 11 G 15 MPH 6000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 41 10 PM Thu Feb 27 2025 25F 27F / 21% NW 11 G 13 MPH 6000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 42 11 PM Thu Feb 27 2025 25F 26F / 23% NW 13 G 15 MPH 5800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 43 12 AM Fri Feb 28 2025 24F 26F / 21% NW 13 G 17 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 44 01 AM Fri Feb 28 2025 25F 26F / 18% WNW 12 G 16 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 45 02 AM Fri Feb 28 2025 25F 26F / 20% WNW 13 G 16 MPH 5400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 46 03 AM Fri Feb 28 2025 25F 26F / 20% WNW 15 G 18 MPH 4800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 47 04 AM Fri Feb 28 2025 24F 26F / 20% WNW 14 G 20 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 48 05 AM Fri Feb 28 2025 24F 25F / 17% WNW 15 G 18 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0"