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 12-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 12 2025 -7F -11F / 79% WNW 26 G 36 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Wed Feb 12 2025 -7F -12F / 65% WNW 26 G 35 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Wed Feb 12 2025 -7F -11F / 67% WNW 25 G 35 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Wed Feb 12 2025 -7F -11F / 76% WNW 27 G 35 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Wed Feb 12 2025 -6F -9F / 73% WNW 25 G 35 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Wed Feb 12 2025 -3F -8F / 74% WNW 23 G 32 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Wed Feb 12 2025 0F -8F / 80% WNW 22 G 33 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Wed Feb 12 2025 1F -7F / 82% W 22 G 30 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Wed Feb 12 2025 1F -6F / 99% W 22 G 31 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Wed Feb 12 2025 3F -6F / 99% W 21 G 32 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Wed Feb 12 2025 3F -7F / 89% W 22 G 32 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Wed Feb 12 2025 3F -7F / 88% W 22 G 36 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Wed Feb 12 2025 0F -7F / 83% WNW 26 G 39 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Wed Feb 12 2025 -2F -7F / 77% WNW 27 G 41 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Wed Feb 12 2025 -4F -7F / 73% WNW 28 G 41 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 15 08 PM Wed Feb 12 2025 -4F -6F / 66% WNW 28 G 43 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 16 09 PM Wed Feb 12 2025 -3F -4F / 61% WNW 27 G 41 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 17 10 PM Wed Feb 12 2025 -1F -2F / 58% WNW 28 G 40 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 18 11 PM Wed Feb 12 2025 0F -1F / 56% WNW 29 G 41 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 19 12 AM Thu Feb 13 2025 0F 0F / 57% WNW 28 G 39 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 20 01 AM Thu Feb 13 2025 2F 2F / 48% WNW 26 G 38 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 21 02 AM Thu Feb 13 2025 4F 3F / 46% W 27 G 37 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 22 03 AM Thu Feb 13 2025 5F 4F / 44% W 24 G 32 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 23 04 AM Thu Feb 13 2025 5F 5F / 47% WSW 23 G 33 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 24 05 AM Thu Feb 13 2025 7F 6F / 48% WSW 22 G 33 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 25 06 AM Thu Feb 13 2025 8F 7F / 47% WSW 24 G 36 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 26 07 AM Thu Feb 13 2025 10F 9F / 49% SW 25 G 39 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 27 08 AM Thu Feb 13 2025 10F 9F / 51% SSW 26 G 42 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 28 09 AM Thu Feb 13 2025 13F 11F / 52% SSW 28 G 50 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 29 10 AM Thu Feb 13 2025 14F 13F / 53% S 30 G 54 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 30 11 AM Thu Feb 13 2025 17F 16F / 79% S 27 G 50 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 31 12 PM Thu Feb 13 2025 19F 17F / 83% SSW 27 G 53 MPH ≤ KSLC 8:1 / 12% 0.01" / 0.1" 0.01" / 0.1" 32 01 PM Thu Feb 13 2025 19F 16F / 89% SSW 28 G 55 MPH ≤ KSLC 8:1 / 12% 0.05" / 0.4" 0.06" / 0.5" 33 02 PM Thu Feb 13 2025 21F 18F / 83% SSW 29 G 58 MPH 4300 FT 8:1 / 12% 0.08" / 0.6" 0.14" / 1.1" 34 03 PM Thu Feb 13 2025 20F 17F / 83% SSW 29 G 56 MPH 4800 FT 8:1 / 12% 0.10" / 0.8" 0.24" / 1.9" 35 04 PM Thu Feb 13 2025 21F 18F / 86% SSW 28 G 56 MPH 5200 FT 8:1 / 12% 0.11" / 0.9" 0.35" / 2.8" 36 05 PM Thu Feb 13 2025 24F 19F / 88% SSW 25 G 49 MPH 5600 FT 8:1 / 12% 0.11" / 0.9" 0.46" / 3.7" 37 06 PM Thu Feb 13 2025 25F 19F / 92% SSW 25 G 47 MPH 6200 FT 6:1 / 17% 0.11" / 0.7" 0.57" / 4.4" 38 07 PM Thu Feb 13 2025 25F 20F / 93% SSW 23 G 50 MPH 6800 FT 7:1 / 14% 0.16" / 1.1" 0.73" / 5.5" 39 08 PM Thu Feb 13 2025 26F 20F / 94% SSW 25 G 48 MPH 7100 FT 7:1 / 14% 0.15" / 1.0" 0.88" / 6.5" 40 09 PM Thu Feb 13 2025 26F 20F / 93% SSW 25 G 46 MPH 7300 FT 9:1 / 11% 0.16" / 1.4" 1.04" / 7.9" 41 10 PM Thu Feb 13 2025 26F 20F / 92% SSW 25 G 52 MPH 7100 FT 7:1 / 14% 0.20" / 1.4" 1.24" / 9.3" 42 11 PM Thu Feb 13 2025 26F 20F / 92% SSW 25 G 52 MPH 7100 FT 8:1 / 12% 0.20" / 1.6" 1.44" / 10.9" 43 12 AM Fri Feb 14 2025 26F 19F / 88% SSW 27 G 53 MPH 7100 FT 8:1 / 12% 0.20" / 1.6" 1.64" / 12.5" 44 01 AM Fri Feb 14 2025 26F 20F / 90% SSW 28 G 52 MPH 7100 FT 8:1 / 12% 0.18" / 1.4" 1.82" / 13.9" 45 02 AM Fri Feb 14 2025 26F 19F / 88% SSW 24 G 46 MPH 6900 FT 10:1 / 10% 0.14" / 1.4" 1.96" / 15.3" 46 03 AM Fri Feb 14 2025 25F 18F / 89% SSW 25 G 46 MPH 6700 FT 10:1 / 10% 0.17" / 1.7" 2.13" / 17.0" 47 04 AM Fri Feb 14 2025 24F 17F / 93% SW 23 G 40 MPH 6600 FT 10:1 / 10% 0.12" / 1.2" 2.25" / 18.2" 48 05 AM Fri Feb 14 2025 23F 16F / 94% WSW 22 G 35 MPH 6400 FT 10:1 / 10% 0.00" / 0.0" 2.25" / 18.2"