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 18Z 18-Nov-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 11 AM Mon Nov 18 2024 21F 12F / 93% W 19 G 29 MPH 5000 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Mon Nov 18 2024 18F 9F / 100% W 20 G 34 MPH 4300 FT 19:1 / 5% 0.09" / 1.7" 0.09" / 1.7" 2 01 PM Mon Nov 18 2024 17F 8F / 95% W 20 G 32 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.09" / 1.7" 3 02 PM Mon Nov 18 2024 17F 7F / 96% W 23 G 35 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.09" / 1.7" 4 03 PM Mon Nov 18 2024 16F 6F / 98% W 22 G 37 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.09" / 1.7" 5 04 PM Mon Nov 18 2024 15F 6F / 94% W 21 G 33 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.09" / 1.7" 6 05 PM Mon Nov 18 2024 11F 4F / 88% W 22 G 33 MPH ≤ KSLC 19:1 / 5% 0.01" / 0.2" 0.10" / 1.9" 7 06 PM Mon Nov 18 2024 11F 4F / 85% WNW 23 G 37 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.10" / 1.9" 8 07 PM Mon Nov 18 2024 10F 2F / 84% WNW 24 G 36 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.10" / 1.9" 9 08 PM Mon Nov 18 2024 9F 2F / 82% WNW 23 G 34 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.10" / 1.9" 10 09 PM Mon Nov 18 2024 8F 2F / 99% WNW 22 G 33 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.10" / 1.9" 11 10 PM Mon Nov 18 2024 7F 1F / 100% WNW 23 G 33 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.10" / 1.9" 12 11 PM Mon Nov 18 2024 7F 2F / 98% W 22 G 33 MPH ≤ KSLC 18:1 / 6% 0.02" / 0.4" 0.12" / 2.3" 13 12 AM Tue Nov 19 2024 7F 1F / 95% W 19 G 28 MPH ≤ KSLC 19:1 / 5% 0.04" / 0.8" 0.16" / 3.1" 14 01 AM Tue Nov 19 2024 5F 0F / 87% W 22 G 34 MPH ≤ KSLC 19:1 / 5% 0.01" / 0.2" 0.17" / 3.3" 15 02 AM Tue Nov 19 2024 5F 0F / 90% W 22 G 35 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.17" / 3.3" 16 03 AM Tue Nov 19 2024 5F 0F / 90% W 20 G 31 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.17" / 3.3" 17 04 AM Tue Nov 19 2024 5F 0F / 93% W 19 G 28 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.17" / 3.3" 18 05 AM Tue Nov 19 2024 5F 0F / 94% W 21 G 32 MPH ≤ KSLC 20:1 / 5% 0.04" / 0.8" 0.21" / 4.1" 19 06 AM Tue Nov 19 2024 6F 0F / 94% W 22 G 34 MPH ≤ KSLC 18:1 / 6% 0.04" / 0.7" 0.25" / 4.8" 20 07 AM Tue Nov 19 2024 5F 0F / 98% WNW 22 G 34 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.25" / 4.8" 21 08 AM Tue Nov 19 2024 5F 0F / 78% WNW 23 G 34 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.25" / 4.8" 22 09 AM Tue Nov 19 2024 6F 0F / 90% WNW 23 G 34 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.25" / 4.8" 23 10 AM Tue Nov 19 2024 8F 0F / 97% WNW 23 G 33 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.25" / 4.8" 24 11 AM Tue Nov 19 2024 10F 1F / 92% WNW 21 G 32 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.25" / 4.8" 25 12 PM Tue Nov 19 2024 13F 2F / 90% W 19 G 30 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.25" / 4.8" 26 01 PM Tue Nov 19 2024 14F 4F / 84% W 20 G 30 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.25" / 4.8" 27 02 PM Tue Nov 19 2024 15F 5F / 82% W 21 G 28 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.25" / 4.8" 28 03 PM Tue Nov 19 2024 14F 5F / 76% W 19 G 26 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.25" / 4.8" 29 04 PM Tue Nov 19 2024 13F 7F / 70% W 18 G 26 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.25" / 4.8" 30 05 PM Tue Nov 19 2024 12F 8F / 62% W 20 G 28 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.25" / 4.8" 31 06 PM Tue Nov 19 2024 12F 8F / 60% W 20 G 29 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.25" / 4.8" 32 07 PM Tue Nov 19 2024 11F 9F / 57% W 19 G 29 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.25" / 4.8" 33 08 PM Tue Nov 19 2024 12F 10F / 55% W 20 G 27 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.25" / 4.8" 34 09 PM Tue Nov 19 2024 13F 11F / 54% WSW 19 G 26 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.25" / 4.8" 35 10 PM Tue Nov 19 2024 15F 12F / 51% WSW 19 G 26 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.25" / 4.8" 36 11 PM Tue Nov 19 2024 15F 13F / 49% SW 19 G 29 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.25" / 4.8" 37 12 AM Wed Nov 20 2024 17F 15F / 44% SW 22 G 35 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.25" / 4.8" 38 01 AM Wed Nov 20 2024 18F 17F / 45% SW 23 G 37 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.25" / 4.8" 39 02 AM Wed Nov 20 2024 18F 17F / 45% SW 24 G 38 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.25" / 4.8" 40 03 AM Wed Nov 20 2024 19F 18F / 43% SW 25 G 40 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.25" / 4.8" 41 04 AM Wed Nov 20 2024 20F 19F / 45% SW 26 G 43 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.25" / 4.8" 42 05 AM Wed Nov 20 2024 21F 19F / 49% SW 27 G 45 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.25" / 4.8" 43 06 AM Wed Nov 20 2024 22F 20F / 54% WSW 26 G 43 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.25" / 4.8" 44 07 AM Wed Nov 20 2024 22F 21F / 52% WSW 26 G 41 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.25" / 4.8" 45 08 AM Wed Nov 20 2024 23F 21F / 45% WSW 25 G 40 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.25" / 4.8" 46 09 AM Wed Nov 20 2024 25F 22F / 39% WSW 23 G 36 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.25" / 4.8" 47 10 AM Wed Nov 20 2024 27F 24F / 41% WSW 23 G 38 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.25" / 4.8" 48 11 AM Wed Nov 20 2024 28F 25F / 36% WSW 22 G 38 MPH 4700 FT 7:1 / 14% 0.00" / 0.0" 0.25" / 4.8"