Soaring Guidance
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
646
UXUS97 KSLC 041228
SRGSLC
Soaring Forecast
National Weather Service Salt Lake City, Utah
628 AM MDT Thursday, September 4, 2025
This forecast is for Thursday, September 4, 2025:
If the trigger temperature of 78.8 F/26.0 C is reached...then
Thermal Soaring Index....................... Excellent
Maximum rate of lift........................ 995 ft/min (5.1 m/s)
Maximum height of thermals.................. 17903 ft MSL (12976 ft AGL)
Forecast maximum temperature................... 88.0 F/31.6 C
Time of trigger temperature.................... 1045 MDT
Time of overdevelopment........................ None
Middle/high clouds during soaring window....... Broken/overcast thin middle
Surface winds during soaring window............ 20 mph or less
Height of the -3 thermal index................. 11755 ft MSL (6828 ft AGL)
Thermal soaring outlook for Friday 09/05....... Excellent
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 06:58:22 / 19:55:00 MDT
Total possible sunshine........... 12 hr 56 min 38 sec (776 min 38 sec)
Altitude of sun at 13:26:41 MDT... 55.58 degrees
Upper air data from rawinsonde observation taken on 09/04/2025 at 0600 MDT
Freezing level.................. 14616 ft MSL (9689 ft AGL)
Convective condensation level... 14303 ft MSL (9376 ft AGL)
Lifted condensation level....... 15266 ft MSL (10339 ft AGL)
Lifted index.................... -4.5
K index......................... +24.9
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 -24.7 -12.5 315 17 9 7.5 4.1 40.3 104.5 7.1 M M
24000 -20.0 -4.0 310 15 7 5.6 3.1 37.9 100.3 5.4 M M
22000 -16.7 1.9 305 11 6 5.7 3.1 35.0 95.0 3.1 M M
20000 -12.2 10.0 295 9 5 7.7 4.2 33.4 92.0 1.7 M M
18000 -8.0 17.6 275 6 3 6.8 3.7 31.6 88.9 0.1 M M
16000 -3.8 25.2 305 4 2 8.7 4.8 30.0 86.0 -1.5 1015 5.2
14000 1.5 34.7 330 7 3 8.7 4.8 29.5 85.0 -2.1 798 4.1
12000 6.7 44.1 325 8 4 8.9 4.9 28.9 84.0 -2.9 584 3.0
10000 11.5 52.7 295 6 3 6.2 3.4 28.0 82.4 -3.9 379 1.9
9000 13.7 56.7 275 6 3 6.1 3.3 27.3 81.2 -4.7 283 1.4
8000 16.1 61.0 230 4 2 6.4 3.5 26.1 79.0 -6.1 176 0.9
7000 17.7 63.9 190 7 4 4.5 2.5 24.8 76.7 -7.4 98 0.5
6000 18.4 65.1 165 10 5 1.0 0.6 22.8 73.0 -9.7 46 0.2
5000 17.2 63.0 135 7 4 -4.2 -2.3 18.7 65.6 -13.9 54 0.3
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
09/04/2025 at 0900 MDT | 09/04/2025 at 1200 MDT
|
CAPE... 0.0 LI... +0.7 | CAPE... +98.6 LI... -0.8
CINH... -1.5 K Index... +14.3 | CINH... -59.3 K Index... +17.7
|
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 -24.1 -11.4 235 7 3 6.8 3.7 | -24.5 -12.1 215 4 2 6.2 3.4
24000 -19.8 -3.6 235 3 2 7.7 4.2 | -20.5 -4.9 000 0 0 7.7 4.2
22000 -15.1 4.8 305 3 1 7.9 4.3 | -15.9 3.4 335 3 2 7.8 4.3
20000 -11.1 12.0 280 7 3 6.0 3.3 | -11.6 11.1 285 6 3 6.6 3.6
18000 -7.3 18.9 260 10 5 8.0 4.4 | -7.4 18.7 265 9 5 8.2 4.5
16000 -2.3 27.9 260 5 3 8.4 4.6 | -2.4 27.7 255 4 2 8.3 4.6
14000 2.7 36.9 030 2 1 8.6 4.7 | 2.7 36.9 095 1 1 9.0 4.9
12000 8.0 46.4 360 3 2 8.8 4.8 | 8.0 46.4 010 1 1 8.7 4.8
10000 13.0 55.4 305 3 1 7.8 4.3 | 12.8 55.0 260 2 1 5.9 3.2
9000 15.6 60.1 265 3 1 7.9 4.3 | 15.3 59.5 240 3 2 7.8 4.3
8000 17.7 63.9 225 4 2 6.9 3.8 | 17.7 63.9 230 5 2 8.1 4.4
7000 19.4 66.9 200 6 3 5.6 3.1 | 19.9 67.8 225 5 3 8.1 4.4
6000 20.7 69.3 190 8 4 3.1 1.7 | 22.4 72.3 230 6 3 10.1 5.5
5000 21.8 71.2 170 8 4 8.1 4.4 | 25.2 77.4 240 5 3 10.5 5.8
09/04/2025 at 1500 MDT | 09/04/2025 at 1800 MDT
|
CAPE... +168.6 LI... -0.6 | CAPE... +32.5 LI... +0.2
CINH... -55.4 K Index... +17.4 | CINH... -34.2 K Index... +16.2
|
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 -24.2 -11.6 225 7 4 6.3 3.5 | -23.7 -10.7 265 12 6 7.5 4.1
24000 -20.4 -4.7 200 3 2 6.4 3.5 | -19.6 -3.3 265 7 4 6.1 3.3
22000 -16.5 2.3 045 2 1 6.2 3.4 | -15.9 3.4 125 2 1 5.9 3.2
20000 -11.4 11.5 325 3 2 7.9 4.3 | -11.6 11.1 035 1 1 7.4 4.1
18000 -7.0 19.4 295 6 3 8.0 4.4 | -6.8 19.8 320 2 1 7.7 4.2
16000 -2.1 28.2 285 6 3 8.4 4.6 | -2.0 28.4 310 3 2 8.3 4.5
14000 2.9 37.2 265 4 2 8.8 4.8 | 3.0 37.4 310 5 3 8.9 4.9
12000 8.2 46.8 250 4 2 8.9 4.9 | 8.4 47.1 300 6 3 8.8 4.8
10000 13.3 55.9 275 5 2 6.5 3.6 | 13.5 56.3 295 7 4 7.3 4.0
9000 16.0 60.8 285 6 3 8.4 4.6 | 16.3 61.3 300 7 4 8.9 4.9
8000 18.6 65.5 285 7 3 8.7 4.7 | 19.1 66.4 305 7 4 9.4 5.2
7000 21.0 69.8 295 7 4 8.1 4.4 | 21.7 71.1 305 7 3 8.9 4.9
6000 23.4 74.1 300 7 4 10.3 5.7 | 24.2 75.6 315 6 3 9.4 5.2
5000 28.7 83.7 310 7 3 73.4 40.3 | 27.4 81.3 320 6 3 18.3 10.0
________________________________________________________________________________
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