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 17-Mar-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 06 PM Sun Mar 16 2025 32F 25F / 61% SSW 23 G 44 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 07 PM Sun Mar 16 2025 30F 24F / 56% SSW 25 G 47 MPH 7900 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 2 08 PM Sun Mar 16 2025 29F 24F / 57% SSW 25 G 47 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 09 PM Sun Mar 16 2025 28F 23F / 57% SSW 26 G 48 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 10 PM Sun Mar 16 2025 26F 22F / 66% SSW 26 G 48 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 11 PM Sun Mar 16 2025 26F 22F / 70% SSW 26 G 47 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 12 AM Mon Mar 17 2025 25F 22F / 67% SSW 26 G 45 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 7 01 AM Mon Mar 17 2025 24F 22F / 65% SSW 26 G 44 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 8 02 AM Mon Mar 17 2025 25F 22F / 63% SW 26 G 45 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 03 AM Mon Mar 17 2025 24F 22F / 62% SW 26 G 44 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 10 04 AM Mon Mar 17 2025 24F 22F / 61% SW 25 G 42 MPH 6900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 11 05 AM Mon Mar 17 2025 24F 21F / 63% SSW 25 G 42 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 12 06 AM Mon Mar 17 2025 24F 21F / 65% SW 27 G 45 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 13 07 AM Mon Mar 17 2025 23F 21F / 60% SW 26 G 44 MPH 6700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 14 08 AM Mon Mar 17 2025 23F 21F / 60% SW 25 G 42 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 09 AM Mon Mar 17 2025 24F 21F / 60% SW 24 G 40 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 16 10 AM Mon Mar 17 2025 26F 21F / 57% SSW 25 G 41 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 17 11 AM Mon Mar 17 2025 28F 22F / 57% SSW 22 G 41 MPH 6600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 18 12 PM Mon Mar 17 2025 30F 22F / 61% SSW 21 G 39 MPH 6800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 19 01 PM Mon Mar 17 2025 31F 23F / 63% SSW 21 G 39 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 02 PM Mon Mar 17 2025 33F 23F / 67% SSW 19 G 37 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 21 03 PM Mon Mar 17 2025 34F 25F / 62% SSW 17 G 36 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 22 04 PM Mon Mar 17 2025 34F 25F / 63% SSW 19 G 39 MPH 7700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 23 05 PM Mon Mar 17 2025 35F 25F / 61% SSW 20 G 43 MPH 8000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 24 06 PM Mon Mar 17 2025 33F 25F / 63% SSW 21 G 42 MPH 7800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 25 07 PM Mon Mar 17 2025 30F 24F / 68% SSW 24 G 49 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 PM Mon Mar 17 2025 28F 23F / 72% SSW 25 G 49 MPH 7700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 27 09 PM Mon Mar 17 2025 29F 22F / 74% SSW 27 G 55 MPH 7300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 28 10 PM Mon Mar 17 2025 28F 20F / 83% S 28 G 56 MPH 7000 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 29 11 PM Mon Mar 17 2025 28F 19F / 89% SSW 26 G 54 MPH 5100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 30 12 AM Tue Mar 18 2025 20F 12F / 97% WNW 25 G 43 MPH 4700 FT 14:1 / 7% 0.17" / 2.4" 0.17" / 2.4" 31 01 AM Tue Mar 18 2025 19F 12F / 91% W 13 G 28 MPH 4700 FT 18:1 / 6% 0.16" / 2.9" 0.33" / 5.3" 32 02 AM Tue Mar 18 2025 18F 11F / 92% WNW 18 G 29 MPH 4500 FT 15:1 / 7% 0.09" / 1.3" 0.42" / 6.6" 33 03 AM Tue Mar 18 2025 17F 10F / 96% WNW 17 G 24 MPH 4600 FT 16:1 / 6% 0.07" / 1.1" 0.49" / 7.7" 34 04 AM Tue Mar 18 2025 16F 9F / 98% WNW 20 G 29 MPH 4900 FT 15:1 / 7% 0.06" / 0.9" 0.55" / 8.6" 35 05 AM Tue Mar 18 2025 15F 9F / 95% WNW 22 G 34 MPH 4600 FT 14:1 / 7% 0.06" / 0.8" 0.61" / 9.4" 36 06 AM Tue Mar 18 2025 15F 8F / 95% NW 22 G 35 MPH 4300 FT 16:1 / 6% 0.06" / 1.0" 0.67" / 10.4" 37 07 AM Tue Mar 18 2025 14F 8F / 92% WNW 23 G 34 MPH ≤ KSLC 15:1 / 7% 0.06" / 0.9" 0.73" / 11.3" 38 08 AM Tue Mar 18 2025 12F 6F / 91% WNW 25 G 40 MPH ≤ KSLC 14:1 / 7% 0.09" / 1.3" 0.82" / 12.6" 39 09 AM Tue Mar 18 2025 11F 5F / 89% WNW 28 G 41 MPH ≤ KSLC 14:1 / 7% 0.09" / 1.3" 0.91" / 13.9" 40 10 AM Tue Mar 18 2025 11F 4F / 91% WNW 29 G 46 MPH ≤ KSLC 13:1 / 8% 0.03" / 0.4" 0.94" / 14.3" 41 11 AM Tue Mar 18 2025 12F 3F / 87% WNW 29 G 45 MPH ≤ KSLC 12:1 / 8% 0.03" / 0.4" 0.97" / 14.7" 42 12 PM Tue Mar 18 2025 13F 4F / 91% WNW 27 G 42 MPH ≤ KSLC 13:1 / 8% 0.03" / 0.4" 1.00" / 15.1" 43 01 PM Tue Mar 18 2025 15F 5F / 90% WNW 25 G 39 MPH ≤ KSLC 13:1 / 8% 0.05" / 0.6" 1.05" / 15.7" 44 02 PM Tue Mar 18 2025 17F 8F / 94% WNW 27 G 39 MPH ≤ KSLC 13:1 / 8% 0.22" / 2.9" 1.27" / 18.6" 45 03 PM Tue Mar 18 2025 16F 6F / 92% WNW 25 G 40 MPH ≤ KSLC 13:1 / 8% 0.11" / 1.4" 1.38" / 20.0" 46 04 PM Tue Mar 18 2025 16F 6F / 90% WNW 24 G 36 MPH ≤ KSLC 13:1 / 8% 0.08" / 1.0" 1.46" / 21.0" 47 05 PM Tue Mar 18 2025 14F 6F / 98% WNW 21 G 35 MPH ≤ KSLC 15:1 / 7% 0.03" / 0.4" 1.49" / 21.4" 48 06 PM Tue Mar 18 2025 12F 5F / 93% WNW 24 G 35 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 1.49" / 21.4"