


Soaring Guidance
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
600 UXUS97 KSLC 131228 SRGSLC Soaring Forecast National Weather Service Salt Lake City, Utah 628 AM MDT Wednesday, August 13, 2025 This forecast is for Wednesday, August 13, 2025: If the trigger temperature of 86.6 F/30.3 C is reached...then Thermal Soaring Index....................... Excellent Maximum rate of lift........................ 1696 ft/min (8.6 m/s) Maximum height of thermals.................. 22732 ft MSL (17803 ft AGL) Forecast maximum temperature................... 101.0 F/38.8 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................. 17989 ft MSL (13061 ft AGL) Thermal soaring outlook for Thursday 08/14..... Excellent Wave Soaring Index............................. Not available Remarks... Sunrise/Sunset.................... 06:36:44 / 20:28:28 MDT Total possible sunshine........... 13 hr 51 min 44 sec (831 min 44 sec) Altitude of sun at 13:32:36 MDT... 62.69 degrees Upper air data from rawinsonde observation taken on 08/13/2025 at 0600 MDT Freezing level.................. 16172 ft MSL (11243 ft AGL) Convective condensation level... 18006 ft MSL (13077 ft AGL) Lifted condensation level....... 19491 ft MSL (14563 ft AGL) Lifted index.................... -4.1 K index......................... +23.4 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 -23.3 -9.9 235 29 15 8.2 4.5 40.8 105.4 1.8 M M 24000 -18.6 -1.5 240 30 16 7.7 4.2 39.6 103.2 0.8 M M 22000 -13.9 7.0 240 31 16 7.7 4.2 38.2 100.7 -0.3 1634 8.3 20000 -8.8 16.2 245 29 15 8.0 4.4 36.6 97.9 -1.8 1413 7.2 18000 -4.2 24.4 255 27 14 7.8 4.3 35.4 95.8 -3.0 1215 6.2 16000 0.5 32.9 250 20 10 8.2 4.5 34.2 93.6 -4.3 1018 5.2 14000 5.5 41.9 230 15 7 9.2 5.0 33.4 92.2 -5.2 808 4.1 12000 10.9 51.6 220 12 6 8.5 4.7 33.0 91.3 -5.8 588 3.0 10000 15.6 60.1 220 7 4 6.0 3.3 31.9 89.4 -6.9 386 2.0 9000 18.0 64.4 215 5 3 7.3 4.0 31.4 88.5 -7.5 285 1.4 8000 20.3 68.5 200 3 2 6.9 3.8 30.8 87.5 -8.2 187 0.9 7000 22.6 72.7 175 4 2 5.9 3.3 29.5 85.0 -9.7 82 0.4 6000 23.7 74.7 160 6 3 2.6 1.4 27.7 81.9 -11.6 18 0.1 5000 20.5 68.9 125 6 3 -1.5 -0.8 21.6 70.8 -17.9 86 0.4 * * * * * * Numerical weather prediction model forecast data valid * * * * * * 08/13/2025 at 0900 MDT | 08/13/2025 at 1200 MDT | CAPE... +0.1 LI... +0.7 | CAPE... +9.8 LI... +0.7 CINH... -0.4 K Index... +20.6 | CINH... -21.1 K Index... +20.7 | 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 -22.3 -8.1 260 21 11 7.6 4.2 | -22.8 -9.0 255 20 10 6.9 3.8 24000 -18.2 -0.8 260 19 10 6.3 3.5 | -18.8 -1.8 260 19 10 6.6 3.6 22000 -14.4 6.1 260 16 8 6.8 3.7 | -14.9 5.2 260 18 9 7.2 3.9 20000 -9.6 14.7 275 13 7 7.6 4.2 | -9.7 14.5 265 15 8 8.2 4.5 18000 -4.9 23.2 295 13 7 9.2 5.1 | -4.6 23.7 270 14 7 8.7 4.7 16000 0.6 33.1 290 12 6 9.5 5.2 | 0.7 33.3 265 12 6 9.3 5.1 14000 6.2 43.2 285 10 5 9.3 5.1 | 6.3 43.3 265 11 6 9.4 5.2 12000 11.6 52.9 265 7 4 8.6 4.7 | 11.9 53.4 250 11 6 9.0 5.0 10000 16.7 62.1 250 5 3 6.6 3.6 | 17.2 63.0 235 10 5 6.8 3.8 9000 19.4 66.9 240 5 2 8.3 4.5 | 20.0 68.0 225 9 5 8.5 4.7 8000 21.8 71.2 225 5 2 7.6 4.1 | 22.7 72.9 225 8 4 8.9 4.9 7000 23.9 75.0 200 5 3 6.3 3.5 | 25.5 77.9 215 7 4 9.4 5.2 6000 25.5 77.9 180 7 4 4.9 2.7 | 28.3 82.9 215 7 4 10.4 5.7 5000 27.3 81.1 160 6 3 15.5 8.5 | 33.9 93.0 215 5 3 77.1 42.3 08/13/2025 at 1500 MDT | 08/13/2025 at 1800 MDT | CAPE... +40.7 LI... -0.1 | CAPE... +31.8 LI... +0.3 CINH... -13.8 K Index... +17.4 | CINH... -13.3 K Index... +17.4 | 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 -22.3 -8.1 245 22 11 7.1 3.9 | -22.2 -8.0 255 22 12 7.3 4.0 24000 -18.4 -1.1 245 20 10 6.2 3.4 | -18.1 -0.6 255 21 11 6.4 3.5 22000 -14.7 5.5 245 18 9 7.1 3.9 | -14.3 6.3 250 20 10 7.2 4.0 20000 -9.3 15.3 250 15 8 8.3 4.5 | -8.7 16.3 250 19 10 8.6 4.7 18000 -4.1 24.6 260 15 8 9.2 5.1 | -3.5 25.7 250 17 9 9.4 5.2 16000 1.4 34.5 260 14 7 9.4 5.2 | 2.1 35.8 255 16 8 9.3 5.1 14000 7.1 44.8 265 13 7 9.8 5.4 | 7.7 45.9 260 14 7 9.5 5.2 12000 12.9 55.2 265 12 6 9.6 5.2 | 13.4 56.1 265 12 6 9.6 5.2 10000 18.4 65.1 270 11 6 8.3 4.6 | 18.9 66.0 275 10 5 7.9 4.4 9000 21.4 70.5 275 10 5 9.8 5.4 | 21.8 71.2 290 9 4 9.3 5.1 8000 24.3 75.7 280 10 5 10.0 5.5 | 24.6 76.3 300 7 4 9.5 5.2 7000 27.2 81.0 280 9 5 10.0 5.5 | 27.3 81.1 310 7 3 9.7 5.3 6000 30.1 86.2 290 8 4 9.7 5.3 | 30.1 86.2 325 7 3 9.9 5.4 5000 36.1 97.0 300 7 4 9.4 5.2 | 34.9 94.8 330 6 3 9.2 5.1 ________________________________________________________________________________ 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