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 24-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 Mon Feb 24 2025 28F 23F / 100% WNW 30 G 49 MPH 8600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Mon Feb 24 2025 27F 23F / 90% WNW 29 G 45 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Mon Feb 24 2025 26F 23F / 81% WNW 31 G 46 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Mon Feb 24 2025 26F 22F / 83% WNW 31 G 46 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Mon Feb 24 2025 28F 23F / 85% WNW 30 G 45 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Mon Feb 24 2025 31F 24F / 86% W 29 G 45 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Mon Feb 24 2025 34F 25F / 69% W 27 G 42 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Mon Feb 24 2025 34F 26F / 50% W 28 G 42 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Mon Feb 24 2025 35F 26F / 43% W 28 G 41 MPH 8200 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Mon Feb 24 2025 36F 27F / 44% W 25 G 40 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Mon Feb 24 2025 35F 27F / 47% W 25 G 38 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Mon Feb 24 2025 35F 28F / 48% W 24 G 37 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Mon Feb 24 2025 33F 28F / 48% W 24 G 37 MPH 8300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Mon Feb 24 2025 31F 27F / 52% WSW 23 G 35 MPH 8500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Mon Feb 24 2025 30F 27F / 56% WSW 21 G 33 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 15 08 PM Mon Feb 24 2025 30F 28F / 55% WSW 22 G 33 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 16 09 PM Mon Feb 24 2025 30F 28F / 55% WSW 22 G 36 MPH 9200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 10 PM Mon Feb 24 2025 30F 28F / 55% SW 24 G 42 MPH 9100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 18 11 PM Mon Feb 24 2025 31F 28F / 57% SW 24 G 40 MPH 9400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 19 12 AM Tue Feb 25 2025 31F 29F / 50% SW 23 G 39 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 01 AM Tue Feb 25 2025 31F 28F / 58% SW 23 G 38 MPH 9300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 21 02 AM Tue Feb 25 2025 32F 28F / 63% WSW 24 G 42 MPH 8400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 03 AM Tue Feb 25 2025 30F 27F / 55% W 24 G 38 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 04 AM Tue Feb 25 2025 29F 25F / 45% W 25 G 40 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 05 AM Tue Feb 25 2025 28F 24F / 41% W 27 G 44 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 25 06 AM Tue Feb 25 2025 25F 22F / 33% W 28 G 42 MPH 6600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 07 AM Tue Feb 25 2025 24F 21F / 41% W 27 G 37 MPH 6500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 27 08 AM Tue Feb 25 2025 23F 20F / 46% W 27 G 41 MPH 6100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 28 09 AM Tue Feb 25 2025 24F 19F / 50% W 25 G 38 MPH 6000 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 10 AM Tue Feb 25 2025 25F 19F / 52% W 25 G 38 MPH 6100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 11 AM Tue Feb 25 2025 27F 20F / 45% W 28 G 44 MPH 6000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 12 PM Tue Feb 25 2025 27F 18F / 85% W 23 G 34 MPH 6100 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 32 01 PM Tue Feb 25 2025 27F 19F / 66% W 24 G 36 MPH 6000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 33 02 PM Tue Feb 25 2025 27F 18F / 60% W 25 G 40 MPH 6100 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 34 03 PM Tue Feb 25 2025 25F 18F / 61% W 26 G 38 MPH 5900 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 35 04 PM Tue Feb 25 2025 23F 17F / 74% W 23 G 37 MPH 5700 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 36 05 PM Tue Feb 25 2025 22F 15F / 80% W 23 G 37 MPH 5600 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 37 06 PM Tue Feb 25 2025 20F 14F / 93% W 23 G 37 MPH 5600 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 38 07 PM Tue Feb 25 2025 19F 13F / 96% W 29 G 43 MPH 5300 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 39 08 PM Tue Feb 25 2025 16F 12F / 87% WNW 30 G 43 MPH 4800 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 40 09 PM Tue Feb 25 2025 15F 11F / 84% WNW 33 G 49 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 41 10 PM Tue Feb 25 2025 14F 10F / 78% WNW 32 G 48 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 42 11 PM Tue Feb 25 2025 12F 9F / 75% WNW 32 G 47 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 43 12 AM Wed Feb 26 2025 12F 8F / 77% WNW 29 G 43 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 44 01 AM Wed Feb 26 2025 11F 8F / 73% WNW 29 G 42 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 45 02 AM Wed Feb 26 2025 10F 7F / 79% WNW 27 G 41 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 46 03 AM Wed Feb 26 2025 10F 7F / 79% WNW 26 G 38 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 47 04 AM Wed Feb 26 2025 9F 5F / 91% NW 25 G 36 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 48 05 AM Wed Feb 26 2025 9F 6F / 92% WNW 25 G 37 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0"