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 02-Jan-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 PM Wed Jan 01 2025 20F 13F / 100% W 33 G 52 MPH 4400 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Wed Jan 01 2025 21F 14F / 100% W 34 G 53 MPH ≤ KSLC 11:1 / 9% 0.03" / 0.3" 0.03" / 0.3" 2 07 PM Wed Jan 01 2025 21F 14F / 100% W 32 G 51 MPH 4500 FT 11:1 / 9% 0.00" / 0.0" 0.03" / 0.3" 3 08 PM Wed Jan 01 2025 22F 15F / 99% W 30 G 48 MPH 4800 FT 10:1 / 10% 0.00" / 0.0" 0.03" / 0.3" 4 09 PM Wed Jan 01 2025 22F 16F / 100% W 33 G 52 MPH 5100 FT 9:1 / 11% 0.07" / 0.6" 0.10" / 0.9" 5 10 PM Wed Jan 01 2025 23F 17F / 98% W 33 G 53 MPH 6100 FT 9:1 / 11% 0.10" / 0.9" 0.20" / 1.8" 6 11 PM Wed Jan 01 2025 23F 18F / 100% W 32 G 52 MPH 5900 FT 9:1 / 11% 0.11" / 1.0" 0.31" / 2.8" 7 12 AM Thu Jan 02 2025 23F 17F / 100% W 32 G 52 MPH 6000 FT 9:1 / 11% 0.07" / 0.6" 0.38" / 3.4" 8 01 AM Thu Jan 02 2025 23F 17F / 100% W 32 G 52 MPH 6300 FT 11:1 / 9% 0.06" / 0.7" 0.44" / 4.1" 9 02 AM Thu Jan 02 2025 23F 17F / 99% W 32 G 52 MPH 6400 FT 11:1 / 9% 0.03" / 0.3" 0.47" / 4.4" 10 03 AM Thu Jan 02 2025 23F 17F / 99% W 31 G 51 MPH 6500 FT 11:1 / 9% 0.02" / 0.2" 0.49" / 4.6" 11 04 AM Thu Jan 02 2025 23F 17F / 97% W 32 G 50 MPH 6500 FT 11:1 / 9% 0.06" / 0.7" 0.55" / 5.3" 12 05 AM Thu Jan 02 2025 22F 17F / 96% W 31 G 48 MPH 6500 FT 11:1 / 9% 0.09" / 1.0" 0.64" / 6.3" 13 06 AM Thu Jan 02 2025 22F 17F / 100% WNW 33 G 49 MPH 6600 FT 9:1 / 11% 0.08" / 0.7" 0.72" / 7.0" 14 07 AM Thu Jan 02 2025 22F 17F / 98% W 37 G 55 MPH 6600 FT 7:1 / 14% 0.00" / 0.0" 0.72" / 7.0" 15 08 AM Thu Jan 02 2025 22F 17F / 100% W 37 G 57 MPH 6700 FT 7:1 / 14% 0.00" / 0.0" 0.72" / 7.0" 16 09 AM Thu Jan 02 2025 23F 17F / 100% W 33 G 52 MPH 6700 FT 8:1 / 12% 0.00" / 0.0" 0.72" / 7.0" 17 10 AM Thu Jan 02 2025 25F 17F / 100% W 29 G 48 MPH 7100 FT 8:1 / 12% 0.01" / 0.1" 0.73" / 7.1" 18 11 AM Thu Jan 02 2025 26F 17F / 100% WNW 31 G 48 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.73" / 7.1" 19 12 PM Thu Jan 02 2025 27F 18F / 100% W 30 G 45 MPH 7200 FT 8:1 / 12% 0.01" / 0.1" 0.74" / 7.2" 20 01 PM Thu Jan 02 2025 27F 18F / 100% WNW 28 G 42 MPH 7200 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 21 02 PM Thu Jan 02 2025 28F 19F / 93% WNW 26 G 38 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 22 03 PM Thu Jan 02 2025 27F 20F / 83% W 26 G 38 MPH 7200 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 23 04 PM Thu Jan 02 2025 26F 21F / 81% W 25 G 36 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 24 05 PM Thu Jan 02 2025 23F 21F / 75% W 24 G 38 MPH 7100 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 25 06 PM Thu Jan 02 2025 22F 21F / 70% W 25 G 38 MPH 7200 FT 6:1 / 17% 0.00" / 0.0" 0.74" / 7.2" 26 07 PM Thu Jan 02 2025 23F 22F / 71% W 24 G 37 MPH 7400 FT 6:1 / 17% 0.00" / 0.0" 0.74" / 7.2" 27 08 PM Thu Jan 02 2025 25F 23F / 73% W 24 G 34 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 28 09 PM Thu Jan 02 2025 26F 24F / 73% W 22 G 34 MPH 7700 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 29 10 PM Thu Jan 02 2025 26F 24F / 73% W 21 G 32 MPH 7900 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 30 11 PM Thu Jan 02 2025 26F 25F / 76% WSW 21 G 31 MPH 8100 FT 9:1 / 11% 0.00" / 0.0" 0.74" / 7.2" 31 12 AM Fri Jan 03 2025 27F 25F / 76% WSW 20 G 32 MPH 8200 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 32 01 AM Fri Jan 03 2025 27F 26F / 71% WSW 20 G 34 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 33 02 AM Fri Jan 03 2025 28F 26F / 67% SW 22 G 37 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 34 03 AM Fri Jan 03 2025 28F 26F / 66% SW 24 G 42 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 35 04 AM Fri Jan 03 2025 29F 27F / 68% SW 26 G 46 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 36 05 AM Fri Jan 03 2025 29F 27F / 65% SW 26 G 46 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 37 06 AM Fri Jan 03 2025 30F 27F / 64% SW 28 G 45 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 38 07 AM Fri Jan 03 2025 30F 28F / 63% SW 27 G 47 MPH 8500 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 39 08 AM Fri Jan 03 2025 29F 28F / 61% SW 27 G 44 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 40 09 AM Fri Jan 03 2025 29F 28F / 55% SW 26 G 45 MPH 8100 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 41 10 AM Fri Jan 03 2025 30F 27F / 51% SW 23 G 42 MPH 8000 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 42 11 AM Fri Jan 03 2025 33F 28F / 43% SW 21 G 38 MPH 7900 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 43 12 PM Fri Jan 03 2025 35F 29F / 40% SW 20 G 37 MPH 7700 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 44 01 PM Fri Jan 03 2025 36F 29F / 36% SW 20 G 36 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 45 02 PM Fri Jan 03 2025 36F 28F / 34% SW 18 G 36 MPH 7400 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 46 03 PM Fri Jan 03 2025 32F 28F / 32% SW 19 G 36 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.74" / 7.2" 47 04 PM Fri Jan 03 2025 30F 27F / 36% SSW 21 G 39 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2" 48 05 PM Fri Jan 03 2025 28F 27F / 39% SW 22 G 39 MPH 7400 FT 7:1 / 14% 0.00" / 0.0" 0.74" / 7.2"