


Soaring Guidance
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
190 UXUS97 KSLC 151228 SRGSLC Soaring Forecast National Weather Service Salt Lake City, Utah 628 AM MDT Friday, August 15, 2025 This forecast is for Friday, August 15, 2025: If the trigger temperature of 81.9 F/27.7 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 1604 ft/min (8.1 m/s) Maximum height of thermals.................. 21790 ft MSL (16863 ft AGL) Forecast maximum temperature................... 95.0 F/35.5 C Time of trigger temperature.................... 0945 MDT Time of overdevelopment........................ None Middle/high clouds during soaring window....... None Surface winds during soaring window............ 20 mph or less Height of the -3 thermal index................. 18470 ft MSL (13543 ft AGL) Thermal soaring outlook for Saturday 08/16..... Excellent Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:38:43 / 20:25:43 MDT Total possible sunshine........... 13 hr 47 min 0 sec (827 min 0 sec) Altitude of sun at 13:32:13 MDT... 62.11 degrees Upper air data from rawinsonde observation taken on 08/15/2025 at 0600 MDT Freezing level.................. 15099 ft MSL (10172 ft AGL) Convective condensation level... 16008 ft MSL (11081 ft AGL) Lifted condensation level....... 17801 ft MSL (12874 ft AGL) Lifted index.................... -4.9 K index......................... +23.7 Height Temperature Wind Wind Spd Lapse Rate ConvectionT Thermal Lift Rate ft MSL deg C deg F Dir kt m/s C/km F/kft deg C deg F Index fpm m/s -------------------------------------------------------------------------------- 26000 -25.0 -13.0 205 21 11 7.7 4.2 39.5 103.2 3.5 M M 24000 -20.1 -4.2 205 17 9 6.8 3.7 37.6 99.6 1.9 M M 22000 -16.1 3.0 210 12 6 6.8 3.7 35.5 95.9 0.1 M M 20000 -12.2 10.0 240 11 5 6.8 3.7 33.3 92.0 -1.8 1437 7.3 18000 -7.8 18.0 255 12 6 8.5 4.7 31.8 89.2 -3.3 1247 6.3 16000 -2.4 27.7 260 12 6 9.1 5.0 31.3 88.4 -3.9 1026 5.2 14000 2.8 37.0 255 12 6 8.5 4.7 30.7 87.3 -4.6 811 4.1 12000 7.9 46.2 250 13 7 9.4 5.1 30.0 85.9 -5.5 600 3.0 10000 13.2 55.8 225 15 8 8.2 4.5 29.4 85.0 -6.1 382 1.9 9000 15.4 59.7 215 17 9 6.9 3.8 28.7 83.7 -6.8 285 1.4 8000 18.0 64.4 200 19 10 7.2 3.9 27.7 81.8 -8.0 171 0.9 7000 19.7 67.5 180 22 12 6.2 3.4 26.7 80.0 -9.2 88 0.4 6000 21.2 70.2 170 21 11 4.4 2.4 25.3 77.6 -10.8 16 0.1 5000 21.7 71.1 155 12 6 -19.2 -10.5 23.0 73.4 -13.3 M M * * * * * * Numerical weather prediction model forecast data valid * * * * * * 08/15/2025 at 0900 MDT | 08/15/2025 at 1200 MDT | CAPE... +4.5 LI... -0.8 | CAPE... +116.3 LI... -0.8 CINH... -60.8 K Index... +26.0 | CINH... -30.1 K Index... +25.9 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 26000 -24.4 -11.9 200 21 11 7.2 4.0 | -23.8 -10.8 195 26 13 7.4 4.1 24000 -20.1 -4.2 205 17 9 7.4 4.1 | -19.7 -3.5 200 22 11 6.3 3.4 22000 -15.7 3.7 220 14 7 7.5 4.1 | -16.0 3.2 215 15 8 6.3 3.5 20000 -11.1 12.0 250 11 6 7.0 3.8 | -11.2 11.8 235 11 6 7.5 4.1 18000 -7.0 19.4 270 9 5 7.4 4.0 | -6.8 19.8 250 8 4 7.5 4.1 16000 -2.2 28.0 255 8 4 8.7 4.8 | -2.1 28.2 240 7 3 8.4 4.6 14000 3.1 37.6 235 10 5 9.2 5.1 | 3.1 37.6 215 8 4 9.0 4.9 12000 8.5 47.3 220 13 6 9.1 5.0 | 8.5 47.3 200 10 5 9.2 5.0 10000 13.7 56.7 205 15 8 7.4 4.0 | 13.8 56.8 195 11 6 7.4 4.1 9000 16.4 61.5 200 16 8 8.8 4.8 | 16.7 62.1 195 12 6 9.1 5.0 8000 18.9 66.0 195 17 9 8.0 4.4 | 19.3 66.7 195 13 7 9.3 5.1 7000 21.1 70.0 185 18 9 6.6 3.6 | 22.1 71.8 190 12 6 9.1 5.0 6000 23.0 73.4 175 17 9 5.0 2.7 | 24.9 76.8 190 12 6 9.9 5.5 5000 25.7 78.3 155 8 4 22.2 12.2 | 27.8 82.0 190 11 5 12.5 6.8 08/15/2025 at 1500 MDT | 08/15/2025 at 1800 MDT | CAPE... +144.9 LI... -1.0 | CAPE... +68.7 LI... -0.5 CINH... -11.3 K Index... +27.5 | CINH... -44.4 K Index... +24.8 | Height Temperature Wnd WndSpd Lapse Rate | Temperature Wnd WndSpd Lapse Rate ft MSL deg C deg F Dir kt m/s C/km F/kft | deg C deg F Dir kt m/s C/km F/kft -------------------------------------------------------------------------------- 26000 -24.1 -11.4 195 28 14 6.3 3.5 | -23.7 -10.7 200 24 12 5.8 3.2 24000 -20.2 -4.4 205 19 10 6.9 3.8 | -20.0 -4.0 205 16 8 7.2 3.9 22000 -15.7 3.7 210 10 5 7.6 4.2 | -15.2 4.6 205 12 6 7.6 4.2 20000 -11.0 12.2 230 7 4 8.0 4.4 | -10.6 12.9 215 13 7 7.9 4.3 18000 -6.5 20.3 240 6 3 7.9 4.3 | -6.2 20.8 225 13 7 8.1 4.4 16000 -1.7 28.9 230 6 3 8.4 4.6 | -1.1 30.0 225 12 6 9.1 5.0 14000 3.5 38.3 220 8 4 9.3 5.1 | 4.5 40.1 220 10 5 9.4 5.1 12000 9.2 48.6 220 10 5 9.6 5.3 | 10.1 50.2 210 8 4 9.3 5.1 10000 14.8 58.6 215 11 6 8.3 4.6 | 15.5 59.9 205 5 3 7.3 4.0 9000 17.8 64.0 210 11 6 9.9 5.4 | 18.4 65.1 195 4 2 9.3 5.1 8000 20.8 69.4 210 11 6 10.2 5.6 | 21.3 70.3 190 3 2 9.8 5.4 7000 23.8 74.8 205 11 6 9.5 5.2 | 24.1 75.4 195 3 2 9.6 5.2 6000 26.7 80.1 205 10 5 10.1 5.5 | 26.9 80.4 185 2 1 9.6 5.2 5000 32.3 90.1 205 8 4 76.1 41.8 | 30.1 86.2 165 1 1 16.2 8.9 ________________________________________________________________________________ This product is issued once per day by approximately 0600 MST/0700 MDT (1300 UTC). This product is not continuously monitored nor updated after the initial issuance. The information contained herein is based on the 1200 UTC rawinsonde observation at the Salt Lake City, Utah International Airport and/or numerical weather prediction model data representative of the airport. These data may not be representative of other areas along the Wasatch Front. Erroneous data such as these should not be used. The content and format of this report as well as the issuance times are subject to change without prior notice. 042025