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 30-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 PM Sun Dec 29 2024 28F 21F / 99% WSW 22 G 37 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Sun Dec 29 2024 26F 20F / 94% W 22 G 37 MPH 7800 FT 11:1 / 9% 0.01" / 0.1" 0.01" / 0.1" 2 07 PM Sun Dec 29 2024 25F 19F / 100% W 27 G 43 MPH 6900 FT 7:1 / 14% 0.07" / 0.5" 0.08" / 0.6" 3 08 PM Sun Dec 29 2024 25F 17F / 98% W 36 G 58 MPH 6800 FT 9:1 / 11% 0.21" / 1.9" 0.29" / 2.5" 4 09 PM Sun Dec 29 2024 23F 16F / 97% W 35 G 56 MPH 6600 FT 12:1 / 8% 0.09" / 1.1" 0.38" / 3.6" 5 10 PM Sun Dec 29 2024 22F 15F / 98% WNW 33 G 51 MPH 6200 FT 11:1 / 9% 0.02" / 0.2" 0.40" / 3.8" 6 11 PM Sun Dec 29 2024 20F 14F / 100% WNW 33 G 52 MPH 5900 FT 11:1 / 9% 0.05" / 0.6" 0.45" / 4.4" 7 12 AM Mon Dec 30 2024 19F 12F / 99% WNW 32 G 49 MPH 5400 FT 14:1 / 7% 0.04" / 0.6" 0.49" / 5.0" 8 01 AM Mon Dec 30 2024 17F 11F / 100% WNW 30 G 47 MPH 5000 FT 16:1 / 6% 0.03" / 0.5" 0.52" / 5.5" 9 02 AM Mon Dec 30 2024 16F 10F / 94% WNW 31 G 49 MPH 4800 FT 14:1 / 7% 0.01" / 0.1" 0.53" / 5.6" 10 03 AM Mon Dec 30 2024 14F 8F / 92% WNW 32 G 50 MPH 4500 FT 14:1 / 7% 0.00" / 0.0" 0.53" / 5.6" 11 04 AM Mon Dec 30 2024 13F 7F / 93% WNW 31 G 49 MPH 4300 FT 15:1 / 7% 0.00" / 0.0" 0.53" / 5.6" 12 05 AM Mon Dec 30 2024 13F 7F / 92% WNW 29 G 44 MPH 4300 FT 17:1 / 6% 0.00" / 0.0" 0.53" / 5.6" 13 06 AM Mon Dec 30 2024 13F 6F / 96% WNW 27 G 43 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.53" / 5.6" 14 07 AM Mon Dec 30 2024 12F 6F / 93% WNW 28 G 44 MPH 4300 FT 18:1 / 6% 0.00" / 0.0" 0.53" / 5.6" 15 08 AM Mon Dec 30 2024 13F 6F / 96% WNW 30 G 44 MPH 4300 FT 17:1 / 6% 0.02" / 0.3" 0.55" / 5.9" 16 09 AM Mon Dec 30 2024 12F 6F / 93% WNW 32 G 48 MPH ≤ KSLC 13:1 / 8% 0.04" / 0.5" 0.59" / 6.4" 17 10 AM Mon Dec 30 2024 13F 5F / 96% WNW 30 G 47 MPH 4400 FT 13:1 / 8% 0.02" / 0.3" 0.61" / 6.7" 18 11 AM Mon Dec 30 2024 15F 5F / 94% WNW 31 G 48 MPH ≤ KSLC 14:1 / 7% 0.03" / 0.4" 0.64" / 7.1" 19 12 PM Mon Dec 30 2024 15F 5F / 99% WNW 29 G 42 MPH ≤ KSLC 16:1 / 6% 0.03" / 0.5" 0.67" / 7.6" 20 01 PM Mon Dec 30 2024 14F 4F / 97% WNW 24 G 37 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 21 02 PM Mon Dec 30 2024 14F 4F / 99% WNW 24 G 33 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 22 03 PM Mon Dec 30 2024 13F 5F / 85% WNW 22 G 32 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 23 04 PM Mon Dec 30 2024 12F 5F / 92% WNW 22 G 30 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 24 05 PM Mon Dec 30 2024 10F 4F / 90% WNW 22 G 33 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 25 06 PM Mon Dec 30 2024 7F 3F / 87% WNW 23 G 33 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 26 07 PM Mon Dec 30 2024 6F 3F / 80% W 22 G 32 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 27 08 PM Mon Dec 30 2024 7F 4F / 71% W 23 G 33 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 28 09 PM Mon Dec 30 2024 6F 4F / 67% W 24 G 34 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 29 10 PM Mon Dec 30 2024 7F 5F / 64% W 24 G 33 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 30 11 PM Mon Dec 30 2024 6F 4F / 65% W 24 G 33 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 31 12 AM Tue Dec 31 2024 7F 4F / 69% W 23 G 33 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 32 01 AM Tue Dec 31 2024 6F 5F / 66% W 23 G 33 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 33 02 AM Tue Dec 31 2024 6F 5F / 68% W 22 G 31 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 34 03 AM Tue Dec 31 2024 6F 4F / 68% W 20 G 28 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 35 04 AM Tue Dec 31 2024 6F 4F / 71% W 19 G 25 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 36 05 AM Tue Dec 31 2024 6F 4F / 71% W 19 G 26 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.67" / 7.6" 37 06 AM Tue Dec 31 2024 5F 4F / 71% W 21 G 28 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 38 07 AM Tue Dec 31 2024 5F 3F / 69% WNW 21 G 30 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 39 08 AM Tue Dec 31 2024 6F 3F / 68% WNW 21 G 29 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 40 09 AM Tue Dec 31 2024 5F 3F / 78% WNW 19 G 26 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 41 10 AM Tue Dec 31 2024 4F 3F / 74% WNW 20 G 27 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 42 11 AM Tue Dec 31 2024 10F 5F / 83% WNW 20 G 29 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 43 12 PM Tue Dec 31 2024 14F 6F / 95% WNW 20 G 29 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 44 01 PM Tue Dec 31 2024 15F 6F / 100% WNW 21 G 31 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 45 02 PM Tue Dec 31 2024 15F 6F / 98% WNW 21 G 29 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 0.67" / 7.6" 46 03 PM Tue Dec 31 2024 13F 6F / 93% WNW 20 G 29 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 47 04 PM Tue Dec 31 2024 11F 6F / 91% WNW 20 G 28 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.67" / 7.6" 48 05 PM Tue Dec 31 2024 10F 5F / 81% WNW 20 G 30 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.67" / 7.6"