


Soaring Guidance
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
655 UXUS97 KSLC 231228 SRGSLC Soaring Forecast National Weather Service Salt Lake City, Utah 628 AM MDT Saturday, August 23, 2025 This forecast is for Saturday, August 23, 2025: If the trigger temperature of 83.8 F/28.8 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 1390 ft/min (7.1 m/s) Maximum height of thermals.................. 18247 ft MSL (13321 ft AGL) Forecast maximum temperature................... 96.0 F/36.0 C Time of trigger temperature.................... 0945 MDT Time of overdevelopment........................ 1800 MDT Middle/high clouds during soaring window....... None Surface winds during soaring window............ 20 mph or less Height of the -3 thermal index................. 14596 ft MSL (9670 ft AGL) Thermal soaring outlook for Sunday 08/24....... Excellent Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:46:36 / 20:14:03 MDT Total possible sunshine........... 13 hr 27 min 26 sec (807 min 26 sec) Altitude of sun at 13:30:19 MDT... 59.64 degrees Upper air data from rawinsonde observation taken on 08/23/2025 at 0600 MDT Freezing level.................. 15956 ft MSL (11030 ft AGL) Convective condensation level... 14686 ft MSL (9760 ft AGL) Lifted condensation level....... 16059 ft MSL (11133 ft AGL) Lifted index.................... -4.0 K index......................... +27.3 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 -19.4 -2.9 270 16 8 7.5 4.1 45.1 113.2 7.4 M M 24000 -15.3 4.5 265 12 6 6.6 3.6 43.1 109.5 5.8 M M 22000 -11.4 11.5 255 7 4 6.4 3.5 40.9 105.6 4.0 M M 20000 -7.7 18.1 225 6 3 6.4 3.5 38.4 101.1 1.8 M M 18000 -4.1 24.6 190 7 4 6.1 3.4 36.0 96.9 -0.3 1168 5.9 16000 -0.1 31.8 175 5 3 7.2 3.9 33.9 93.1 -2.2 992 5.0 14000 4.7 40.5 185 4 2 8.5 4.6 32.9 91.2 -3.3 786 4.0 12000 9.8 49.6 225 5 3 8.4 4.6 32.1 89.8 -4.2 576 2.9 10000 14.5 58.1 265 7 4 7.8 4.3 31.1 88.0 -5.4 376 1.9 9000 16.5 61.7 285 8 4 6.7 3.7 30.4 86.7 -6.3 285 1.4 8000 19.1 66.4 295 6 3 6.9 3.8 29.3 84.7 -7.5 172 0.9 7000 21.0 69.8 275 2 1 6.9 3.8 28.4 83.1 -8.5 83 0.4 6000 22.7 72.9 165 3 2 5.0 2.8 27.2 81.0 -9.9 4 0.0 5000 21.6 70.9 130 5 2 -73.1 -40.1 23.4 74.1 -14.0 7 0.0 * * * * * * Numerical weather prediction model forecast data valid * * * * * * 08/23/2025 at 0900 MDT | 08/23/2025 at 1200 MDT | CAPE... +18.8 LI... -1.1 | CAPE... +299.4 LI... -2.3 CINH... -102.4 K Index... +24.5 | CINH... -36.8 K Index... +26.4 | 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 -20.4 -4.7 285 17 9 7.4 4.0 | -20.2 -4.4 270 16 8 7.2 4.0 24000 -16.1 3.0 280 14 7 7.0 3.8 | -16.0 3.2 270 14 7 6.7 3.7 22000 -12.0 10.4 275 14 7 6.3 3.4 | -12.1 10.2 270 14 7 5.8 3.2 20000 -8.6 16.5 290 12 6 6.0 3.3 | -9.0 15.8 285 9 5 5.5 3.0 18000 -4.3 24.3 310 10 5 8.4 4.6 | -4.5 23.9 315 8 4 8.8 4.8 16000 0.8 33.4 305 9 5 9.0 4.9 | 0.7 33.3 310 7 4 9.0 5.0 14000 6.1 43.0 300 9 5 9.0 5.0 | 6.0 42.8 300 6 3 9.1 5.0 12000 11.2 52.2 310 6 3 8.5 4.7 | 11.3 52.3 295 3 2 8.8 4.8 10000 16.2 61.2 350 2 1 7.8 4.3 | 16.5 61.7 250 1 1 8.1 4.5 9000 18.7 65.7 050 1 1 8.5 4.6 | 19.2 66.6 220 2 1 9.3 5.1 8000 20.8 69.4 105 2 1 6.9 3.8 | 21.5 70.7 225 3 1 8.2 4.5 7000 22.6 72.7 140 4 2 4.1 2.3 | 24.0 75.2 230 4 2 8.2 4.5 6000 24.2 75.6 135 6 3 4.0 2.2 | 26.6 79.9 235 4 2 9.7 5.3 5000 26.8 80.2 120 4 2 34.7 19.0 | 32.2 90.0 245 4 2 80.7 44.3 08/23/2025 at 1500 MDT | 08/23/2025 at 1800 MDT | CAPE... +321.5 LI... -1.9 | CAPE... +94.6 LI... -0.7 CINH... -36.7 K Index... +25.9 | CINH... -62.9 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 -19.9 -3.8 255 19 10 7.4 4.1 | -19.6 -3.3 265 25 13 7.3 4.0 24000 -15.8 3.6 260 15 8 6.7 3.7 | -15.5 4.1 270 22 11 6.6 3.6 22000 -11.8 10.8 260 12 6 6.1 3.3 | -11.6 11.1 270 17 9 6.7 3.7 20000 -8.0 17.6 275 8 4 5.8 3.2 | -7.7 18.1 270 12 6 6.8 3.7 18000 -4.0 24.8 315 4 2 8.2 4.5 | -3.4 25.9 265 5 3 7.9 4.3 16000 0.9 33.6 315 3 2 8.7 4.8 | 1.4 34.5 260 3 2 8.7 4.7 14000 6.2 43.2 290 4 2 9.1 5.0 | 6.6 43.9 280 3 1 8.9 4.9 12000 11.6 52.9 275 5 2 9.0 4.9 | 11.9 53.4 310 4 2 9.0 4.9 10000 16.9 62.4 265 6 3 8.3 4.5 | 17.1 62.8 315 6 3 7.9 4.3 9000 19.7 67.5 275 7 3 9.5 5.2 | 19.6 67.3 325 7 3 8.9 4.9 8000 22.2 72.0 280 7 4 8.4 4.6 | 21.9 71.4 330 8 4 8.2 4.5 7000 24.7 76.5 290 8 4 8.4 4.6 | 24.4 75.9 340 9 5 8.6 4.7 6000 27.2 81.0 300 8 4 10.2 5.6 | 26.9 80.4 345 9 4 9.3 5.1 5000 33.0 91.4 305 8 4 83.7 45.9 | 31.6 88.9 350 7 4 53.5 29.4 ________________________________________________________________________________ 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