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 29-Dec-2024 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 Sun Dec 29 2024 25F 22F / 75% WSW 25 G 41 MPH 8400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 06 AM Sun Dec 29 2024 25F 24F / 62% WSW 29 G 46 MPH 8000 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 2 07 AM Sun Dec 29 2024 25F 24F / 54% WSW 27 G 43 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 08 AM Sun Dec 29 2024 25F 24F / 48% WSW 26 G 41 MPH 7600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 4 09 AM Sun Dec 29 2024 27F 24F / 48% SW 26 G 44 MPH 7600 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 10 AM Sun Dec 29 2024 29F 25F / 53% SW 25 G 42 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 6 11 AM Sun Dec 29 2024 32F 24F / 50% SW 25 G 43 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 7 12 PM Sun Dec 29 2024 32F 24F / 45% SW 30 G 48 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 01 PM Sun Dec 29 2024 31F 23F / 53% SW 31 G 54 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 9 02 PM Sun Dec 29 2024 32F 23F / 52% WSW 33 G 60 MPH 7600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 10 03 PM Sun Dec 29 2024 31F 23F / 58% WSW 33 G 57 MPH 7900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 04 PM Sun Dec 29 2024 30F 23F / 65% SW 32 G 58 MPH 8200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 12 05 PM Sun Dec 29 2024 29F 23F / 68% WSW 32 G 58 MPH 8300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 13 06 PM Sun Dec 29 2024 29F 21F / 83% W 27 G 45 MPH 8300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 07 PM Sun Dec 29 2024 27F 20F / 100% W 30 G 52 MPH 7900 FT 7:1 / 14% 0.11" / 0.8" 0.11" / 0.8" 15 08 PM Sun Dec 29 2024 27F 19F / 96% W 36 G 58 MPH 7100 FT 8:1 / 12% 0.28" / 2.2" 0.39" / 3.0" 16 09 PM Sun Dec 29 2024 24F 16F / 98% W 37 G 60 MPH 7000 FT 8:1 / 12% 0.17" / 1.4" 0.56" / 4.4" 17 10 PM Sun Dec 29 2024 23F 16F / 98% W 36 G 58 MPH 6700 FT 11:1 / 9% 0.10" / 1.1" 0.66" / 5.5" 18 11 PM Sun Dec 29 2024 22F 16F / 98% W 30 G 47 MPH 5900 FT 9:1 / 11% 0.05" / 0.4" 0.71" / 5.9" 19 12 AM Mon Dec 30 2024 19F 12F / 99% WNW 35 G 55 MPH 5600 FT 12:1 / 8% 0.13" / 1.6" 0.84" / 7.5" 20 01 AM Mon Dec 30 2024 18F 11F / 96% W 35 G 55 MPH 5600 FT 13:1 / 8% 0.02" / 0.3" 0.86" / 7.8" 21 02 AM Mon Dec 30 2024 17F 10F / 95% W 34 G 56 MPH 5400 FT 14:1 / 7% 0.02" / 0.3" 0.88" / 8.1" 22 03 AM Mon Dec 30 2024 16F 10F / 97% WNW 33 G 51 MPH 5000 FT 15:1 / 7% 0.03" / 0.4" 0.91" / 8.5" 23 04 AM Mon Dec 30 2024 15F 9F / 99% WNW 31 G 49 MPH 4700 FT 13:1 / 8% 0.07" / 0.9" 0.98" / 9.4" 24 05 AM Mon Dec 30 2024 14F 8F / 98% WNW 30 G 45 MPH 4600 FT 14:1 / 7% 0.09" / 1.3" 1.07" / 10.7" 25 06 AM Mon Dec 30 2024 12F 6F / 88% WNW 29 G 42 MPH 4400 FT 19:1 / 5% 0.09" / 1.7" 1.16" / 12.4" 26 07 AM Mon Dec 30 2024 11F 5F / 90% WNW 31 G 47 MPH ≤ KSLC 13:1 / 8% 0.07" / 0.9" 1.23" / 13.3" 27 08 AM Mon Dec 30 2024 10F 3F / 92% WNW 32 G 50 MPH ≤ KSLC 15:1 / 7% 0.02" / 0.3" 1.25" / 13.6" 28 09 AM Mon Dec 30 2024 9F 2F / 84% WNW 31 G 45 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 1.25" / 13.6" 29 10 AM Mon Dec 30 2024 10F 3F / 90% WNW 28 G 41 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 1.25" / 13.6" 30 11 AM Mon Dec 30 2024 11F 2F / 98% WNW 27 G 39 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 1.25" / 13.6" 31 12 PM Mon Dec 30 2024 12F 3F / 94% WNW 24 G 35 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.25" / 13.6" 32 01 PM Mon Dec 30 2024 13F 4F / 95% WNW 24 G 37 MPH ≤ KSLC 20:1 / 5% 0.01" / 0.2" 1.26" / 13.8" 33 02 PM Mon Dec 30 2024 12F 4F / 97% WNW 25 G 38 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 34 03 PM Mon Dec 30 2024 11F 3F / 97% WNW 27 G 36 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 35 04 PM Mon Dec 30 2024 10F 3F / 100% WNW 24 G 36 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 1.26" / 13.8" 36 05 PM Mon Dec 30 2024 9F 3F / 99% WNW 24 G 37 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 1.26" / 13.8" 37 06 PM Mon Dec 30 2024 8F 4F / 79% WNW 25 G 37 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 38 07 PM Mon Dec 30 2024 6F 3F / 80% WNW 23 G 34 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 39 08 PM Mon Dec 30 2024 5F 3F / 83% WNW 22 G 30 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 40 09 PM Mon Dec 30 2024 4F 2F / 79% W 21 G 30 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 41 10 PM Mon Dec 30 2024 4F 2F / 74% W 21 G 29 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 42 11 PM Mon Dec 30 2024 3F 2F / 80% W 21 G 29 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 43 12 AM Tue Dec 31 2024 3F 1F / 81% WNW 21 G 29 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 1.26" / 13.8" 44 01 AM Tue Dec 31 2024 2F 0F / 88% WNW 20 G 31 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 1.26" / 13.8" 45 02 AM Tue Dec 31 2024 3F 0F / 99% WNW 20 G 29 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 1.26" / 13.8" 46 03 AM Tue Dec 31 2024 3F 0F / 100% WNW 18 G 28 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 1.26" / 13.8" 47 04 AM Tue Dec 31 2024 3F 0F / 100% WNW 18 G 24 MPH ≤ KSLC 24:1 / 4% 0.00" / 0.0" 1.26" / 13.8" 48 05 AM Tue Dec 31 2024 4F 0F / 100% WNW 19 G 28 MPH ≤ KSLC 24:1 / 4% 0.00" / 0.0" 1.26" / 13.8"