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 04-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 04 2024 18F 10F / 77% NNW 23 G 36 MPH 4600 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Mon Nov 04 2024 19F 11F / 79% NW 20 G 29 MPH 4700 FT 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Mon Nov 04 2024 20F 12F / 83% WNW 16 G 24 MPH 4800 FT 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Mon Nov 04 2024 21F 14F / 79% WNW 12 G 25 MPH 4700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Mon Nov 04 2024 18F 14F / 72% NW 19 G 28 MPH 5000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 5 04 PM Mon Nov 04 2024 18F 15F / 69% WNW 18 G 26 MPH 4900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 05 PM Mon Nov 04 2024 18F 16F / 62% WNW 21 G 31 MPH 4600 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 06 PM Mon Nov 04 2024 17F 16F / 61% WNW 27 G 38 MPH 4500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 8 07 PM Mon Nov 04 2024 18F 16F / 67% WNW 30 G 44 MPH 4400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 9 08 PM Mon Nov 04 2024 19F 17F / 73% WNW 30 G 45 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 09 PM Mon Nov 04 2024 20F 17F / 77% WNW 32 G 47 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 11 10 PM Mon Nov 04 2024 21F 17F / 83% WNW 34 G 52 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 11 PM Mon Nov 04 2024 22F 17F / 88% WNW 33 G 50 MPH ≤ KSLC 6:1 / 17% 0.00" / 0.0" 0.00" / 0.0" 13 12 AM Tue Nov 05 2024 23F 17F / 98% WNW 33 G 50 MPH ≤ KSLC 9:1 / 11% 0.01" / 0.1" 0.01" / 0.1" 14 01 AM Tue Nov 05 2024 23F 17F / 100% WNW 33 G 50 MPH ≤ KSLC 9:1 / 11% 0.01" / 0.1" 0.02" / 0.2" 15 02 AM Tue Nov 05 2024 22F 15F / 97% WNW 35 G 54 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.02" / 0.2" 16 03 AM Tue Nov 05 2024 20F 14F / 100% WNW 34 G 54 MPH 5300 FT 8:1 / 12% 0.00" / 0.0" 0.02" / 0.2" 17 04 AM Tue Nov 05 2024 20F 14F / 97% WNW 34 G 53 MPH 5700 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 18 05 AM Tue Nov 05 2024 19F 14F / 98% W 31 G 48 MPH 5600 FT 9:1 / 11% 0.00" / 0.0" 0.02" / 0.2" 19 06 AM Tue Nov 05 2024 19F 12F / 94% WNW 31 G 49 MPH 5500 FT 14:1 / 7% 0.00" / 0.0" 0.02" / 0.2" 20 07 AM Tue Nov 05 2024 17F 11F / 100% W 33 G 49 MPH 5200 FT 14:1 / 7% 0.00" / 0.0" 0.02" / 0.2" 21 08 AM Tue Nov 05 2024 17F 10F / 93% WNW 32 G 49 MPH 5000 FT 16:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 22 09 AM Tue Nov 05 2024 15F 8F / 95% WNW 29 G 44 MPH 4700 FT 16:1 / 6% 0.00" / 0.0" 0.02" / 0.2" 23 10 AM Tue Nov 05 2024 16F 7F / 96% WNW 29 G 46 MPH ≤ KSLC 13:1 / 8% 0.02" / 0.3" 0.04" / 0.5" 24 11 AM Tue Nov 05 2024 17F 7F / 95% WNW 29 G 44 MPH ≤ KSLC 13:1 / 8% 0.07" / 0.9" 0.11" / 1.4" 25 12 PM Tue Nov 05 2024 16F 6F / 94% W 30 G 45 MPH ≤ KSLC 13:1 / 8% 0.08" / 1.0" 0.19" / 2.4" 26 01 PM Tue Nov 05 2024 15F 5F / 98% WNW 29 G 45 MPH ≤ KSLC 13:1 / 8% 0.03" / 0.4" 0.22" / 2.8" 27 02 PM Tue Nov 05 2024 16F 6F / 95% WNW 28 G 44 MPH ≤ KSLC 13:1 / 8% 0.06" / 0.8" 0.28" / 3.6" 28 03 PM Tue Nov 05 2024 16F 5F / 94% WNW 26 G 39 MPH ≤ KSLC 13:1 / 8% 0.10" / 1.3" 0.38" / 4.9" 29 04 PM Tue Nov 05 2024 13F 4F / 92% WNW 28 G 43 MPH ≤ KSLC 12:1 / 8% 0.08" / 1.0" 0.46" / 5.9" 30 05 PM Tue Nov 05 2024 11F 3F / 93% WNW 25 G 39 MPH ≤ KSLC 14:1 / 7% 0.08" / 1.1" 0.54" / 7.0" 31 06 PM Tue Nov 05 2024 10F 2F / 99% WNW 25 G 38 MPH ≤ KSLC 15:1 / 7% 0.07" / 1.0" 0.61" / 8.0" 32 07 PM Tue Nov 05 2024 8F 1F / 91% NW 23 G 35 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 33 08 PM Tue Nov 05 2024 8F 1F / 92% NW 21 G 33 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.61" / 8.0" 34 09 PM Tue Nov 05 2024 7F 1F / 90% NW 23 G 37 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 35 10 PM Tue Nov 05 2024 7F 2F / 81% NNW 18 G 35 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.61" / 8.0" 36 11 PM Tue Nov 05 2024 6F 2F / 83% NNW 23 G 36 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.61" / 8.0" 37 12 AM Wed Nov 06 2024 7F 3F / 85% NNW 22 G 34 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.61" / 8.0" 38 01 AM Wed Nov 06 2024 5F 2F / 85% NNW 25 G 36 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 39 02 AM Wed Nov 06 2024 4F 1F / 87% NNW 23 G 35 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 40 03 AM Wed Nov 06 2024 5F 1F / 93% NNW 24 G 34 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.61" / 8.0" 41 04 AM Wed Nov 06 2024 6F 2F / 96% NNW 22 G 34 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 42 05 AM Wed Nov 06 2024 7F 3F / 90% NNW 26 G 37 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 43 06 AM Wed Nov 06 2024 8F 4F / 89% NNW 24 G 35 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 44 07 AM Wed Nov 06 2024 7F 3F / 93% NNW 23 G 34 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.61" / 8.0" 45 08 AM Wed Nov 06 2024 8F 3F / 96% N 19 G 31 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.61" / 8.0" 46 09 AM Wed Nov 06 2024 9F 4F / 97% NNW 19 G 30 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.61" / 8.0" 47 10 AM Wed Nov 06 2024 9F 5F / 96% NNW 17 G 27 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.61" / 8.0" 48 11 AM Wed Nov 06 2024 11F 5F / 95% N 13 G 22 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.61" / 8.0"