Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
816
UXUS97 KBOI 231305
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
705 AM MDT Sunday, August 23, 2026
This forecast is for Sunday, August 23, 2026:
If the trigger temperature of 84.4 F/29.1 C is reached...then
Thermal Soaring Index....................... Fair
Maximum rate of lift........................ 364 ft/min (1.8 m/s)
Maximum height of thermals.................. 8888 ft MSL (5921 ft AGL)
Forecast maximum temperature................... 89.0 F/32.1 C
Time of trigger temperature.................... 1430 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................. 6642 ft MSL (3676 ft AGL)
Thermal soaring outlook for Monday 08/24....... Fair
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 06:59:04 / 20:35:45 MDT
Total possible sunshine........... 13 hr 36 min 41 sec (816 min 41 sec)
Altitude of sun at 13:47:25 MDT... 56.09 degrees
Upper air data from rawinsonde observation taken on 08/23/2026 at 0600 MDT
Freezing level.................. 14408 ft MSL (11441 ft AGL)
Convective condensation level... 13803 ft MSL (10836 ft AGL)
Lifted condensation level....... 12953 ft MSL (9986 ft AGL)
Lifted index.................... -1.8
K index......................... +19.7
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
--------------------------------------------------------------------------------
40000 -54.3 -65.7 215 65 33 5.2 2.9 M M M M M
38000 -51.0 -59.8 215 67 34 5.6 3.1 M M M M M
36000 -47.1 -52.8 215 68 35 5.6 3.1 M M M M M
34000 -42.8 -45.0 220 65 33 7.6 4.2 M M M M M
32000 -38.3 -36.9 220 60 31 7.6 4.2 M M M M M
30000 -33.8 -28.8 225 55 29 7.3 4.0 48.8 119.9 12.7 M M
28000 -29.5 -21.1 230 52 27 7.4 4.1 47.1 116.7 11.7 M M
26000 -24.7 -12.5 230 51 26 8.1 4.4 45.6 114.1 10.8 M M
24000 -20.0 -4.0 235 50 26 6.9 3.8 44.2 111.5 9.9 M M
22000 -15.4 4.3 235 49 25 6.4 3.5 41.8 107.3 8.3 M M
20000 -12.3 9.9 235 47 24 5.4 3.0 38.6 101.5 5.7 M M
18000 -9.0 15.8 235 44 23 7.2 4.0 35.9 96.6 3.2 M M
16000 -4.2 24.4 225 37 19 8.8 4.8 35.0 94.9 2.2 M M
14000 1.0 33.8 220 31 16 8.7 4.8 34.4 93.9 1.7 M M
12000 6.4 43.5 220 27 14 8.9 4.9 33.8 92.8 1.3 M M
10000 11.5 52.7 215 20 10 8.8 4.8 33.0 91.4 0.5 M M
9000 14.0 57.2 220 18 9 7.5 4.1 32.6 90.7 0.1 M M
8000 17.0 62.6 225 16 8 7.1 3.9 31.9 89.5 -0.5 260 1.3
7500 17.4 63.3 225 15 8 2.5 1.4 30.9 87.7 -1.5 231 1.2
7000 17.8 64.0 225 13 7 5.0 2.7 29.9 85.9 -2.6 205 1.0
6500 18.1 64.6 220 13 7 -0.7 -0.4 28.8 83.9 -3.8 182 0.9
6000 17.9 64.2 210 11 6 -0.6 -0.3 27.4 81.3 -5.5 173 0.9
5500 18.1 64.6 205 11 6 5.5 3.0 26.2 79.2 -6.8 153 0.8
5000 18.7 65.7 205 10 5 3.2 1.7 25.5 77.9 -7.6 118 0.6
4750 18.9 66.0 210 9 5 2.2 1.2 24.9 76.9 -8.2 105 0.5
4500 19.3 66.7 225 7 4 5.0 2.7 24.5 76.1 -8.6 88 0.4
4250 19.6 67.3 245 6 3 2.7 1.5 24.1 75.3 -8.9 69 0.4
4000 19.7 67.5 250 5 3 -2.3 -1.2 23.3 74.0 -9.6 60 0.3
3750 19.7 67.5 255 6 3 3.8 2.1 22.5 72.6 -10.4 54 0.3
3500 20.2 68.4 270 4 2 5.1 2.8 22.3 72.2 -10.7 32 0.2
3400 20.2 68.4 270 4 2 5.1 2.8 22.3 72.2 -10.7 32 0.2
3300 19.9 67.8 270 3 1 -13.7 -7.5 21.6 70.9 -11.4 32 0.2
3200 19.9 67.8 270 3 1 -13.7 -7.5 21.6 70.9 -11.4 32 0.2
3100 19.9 67.8 270 3 1 -13.7 -7.5 21.6 70.9 -11.4 32 0.2
3000 19.0 66.2 235 2 1 1.3 0.7 20.3 68.6 -12.7 52 0.3
2900 M M M M M M M M M M M M
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
08/23/2026 at 0900 MDT | 08/23/2026 at 1200 MDT
|
CAPE... 0.0 LI... +2.6 | CAPE... 0.0 LI... +3.7
CINH... 0.0 K Index... +10.6 | CINH... 0.0 K Index... +5.4
|
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
--------------------------------------------------------------------------------
40000 -54.2 -65.6 225 67 34 4.0 2.2 | -53.8 -64.8 230 65 34 3.8 2.1
38000 -50.8 -59.4 225 66 34 5.0 2.7 | -50.7 -59.3 230 64 33 4.6 2.5
36000 -47.8 -54.0 225 66 34 5.0 2.8 | -47.9 -54.2 230 63 33 4.7 2.6
34000 -43.7 -46.7 225 62 32 7.5 4.1 | -43.9 -47.0 235 59 30 7.3 4.0
32000 -39.1 -38.4 230 58 30 7.5 4.1 | -39.5 -39.1 235 54 28 7.4 4.0
30000 -34.5 -30.1 230 55 28 7.8 4.3 | -34.8 -30.6 235 51 26 8.0 4.4
28000 -29.9 -21.8 235 52 27 7.8 4.3 | -30.0 -22.0 235 49 25 8.0 4.4
26000 -25.3 -13.5 235 51 26 7.6 4.2 | -25.2 -13.4 235 47 24 8.0 4.4
24000 -20.8 -5.4 240 49 25 7.4 4.0 | -20.6 -5.1 240 45 23 7.1 3.9
22000 -15.9 3.4 240 47 24 7.1 3.9 | -15.8 3.6 240 43 22 6.9 3.8
20000 -12.0 10.4 240 44 23 6.4 3.5 | -11.8 10.8 240 41 21 6.7 3.7
18000 -8.2 17.2 235 44 23 6.6 3.6 | -7.8 18.0 235 41 21 6.9 3.8
16000 -4.2 24.4 225 43 22 7.8 4.3 | -3.6 25.5 230 41 21 7.4 4.1
14000 0.7 33.3 220 38 20 8.0 4.4 | 1.0 33.8 230 38 20 7.7 4.3
12000 5.5 41.9 220 33 17 7.9 4.3 | 5.6 42.1 230 32 16 7.3 4.0
10000 10.2 50.4 220 26 13 7.3 4.0 | 9.7 49.5 230 24 13 7.0 3.8
9000 12.3 54.1 225 22 11 6.5 3.5 | 11.7 53.1 235 20 10 6.6 3.6
8000 14.7 58.5 235 17 9 6.2 3.4 | 14.3 57.7 245 13 7 5.2 2.9
7500 15.1 59.2 245 15 8 1.4 0.8 | 14.8 58.6 255 11 5 5.2 2.9
7000 15.3 59.5 255 13 7 2.3 1.3 | 15.5 59.9 275 8 4 4.8 2.7
6500 15.6 60.1 265 11 6 3.8 2.1 | 16.1 61.0 290 7 4 5.2 2.8
6000 16.0 60.8 270 9 5 4.4 2.4 | 16.8 62.2 305 7 3 5.0 2.8
5500 16.6 61.9 275 8 4 4.1 2.3 | 17.7 63.9 305 6 3 7.7 4.2
5000 17.1 62.8 275 6 3 1.5 0.8 | 18.8 65.8 300 6 3 7.5 4.1
4750 17.2 63.0 280 6 3 0.9 0.5 | 19.4 66.9 300 6 3 9.2 5.0
4500 17.4 63.3 285 6 3 1.4 0.7 | 20.2 68.4 300 6 3 11.5 6.3
4250 17.5 63.5 290 5 3 3.0 1.7 | 21.0 69.8 295 6 3 10.1 5.6
4000 17.8 64.0 290 5 3 3.3 1.8 | 21.7 71.1 295 6 3 8.9 4.9
3750 18.1 64.6 290 5 3 6.5 3.6 | 22.4 72.3 295 6 3 9.8 5.4
3500 18.8 65.8 290 5 2 11.0 6.0 | 23.2 73.8 295 5 3 14.8 8.1
3400 18.8 65.8 290 5 2 11.0 6.0 | 23.2 73.8 295 5 3 14.8 8.1
3300 19.5 67.1 285 4 2 7.6 4.1 | 24.6 76.3 295 5 3 21.5 11.8
3200 19.5 67.1 285 4 2 7.6 4.1 | 24.6 76.3 295 5 3 21.5 11.8
3100 19.5 67.1 285 4 2 7.6 4.1 | 24.6 76.3 295 5 3 21.5 11.8
3000 20.3 68.5 280 4 2 16.4 9.0 | 26.0 78.8 295 6 3 11.3 6.2
2900 M M M M M M M | M M M M M M M
08/23/2026 at 1500 MDT | 08/23/2026 at 1800 MDT
|
CAPE... 0.0 LI... +3.9 | CAPE... 0.0 LI... +4.9
CINH... -0.1 K Index... +2.2 | CINH... -0.0 K Index... +8.5
|
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
--------------------------------------------------------------------------------
40000 -55.0 -67.0 235 62 32 4.6 2.6 | -55.4 -67.7 235 58 30 5.1 2.8
38000 -51.4 -60.5 235 62 32 5.3 2.9 | -51.6 -60.9 240 58 30 5.6 3.1
36000 -48.3 -54.9 240 61 31 5.2 2.9 | -48.2 -54.8 240 57 30 5.6 3.0
34000 -44.0 -47.2 240 57 29 7.5 4.1 | -43.8 -46.8 240 55 28 7.8 4.3
32000 -39.5 -39.1 235 52 27 7.6 4.2 | -39.1 -38.4 240 52 27 7.7 4.2
30000 -34.8 -30.6 235 48 25 8.0 4.4 | -34.4 -29.9 240 48 25 7.9 4.3
28000 -30.0 -22.0 235 45 23 8.0 4.4 | -29.7 -21.5 240 44 23 8.0 4.4
26000 -25.1 -13.2 240 43 22 8.3 4.5 | -24.7 -12.5 240 42 22 8.4 4.6
24000 -20.3 -4.5 240 42 21 7.5 4.1 | -19.8 -3.6 240 39 20 7.8 4.3
22000 -15.3 4.5 240 40 20 7.3 4.0 | -14.5 5.9 245 37 19 7.5 4.1
20000 -11.1 12.0 240 38 20 7.0 3.8 | -10.2 13.6 245 36 19 7.2 4.0
18000 -7.0 19.4 240 38 20 6.9 3.8 | -6.1 21.0 245 36 19 6.6 3.6
16000 -2.8 27.0 240 40 21 7.2 4.0 | -2.2 28.0 245 38 20 6.7 3.7
14000 1.7 35.1 235 38 20 7.6 4.1 | 1.9 35.4 240 37 19 7.4 4.1
12000 6.1 43.0 235 31 16 7.2 4.0 | 6.4 43.5 240 31 16 7.6 4.1
10000 10.2 50.4 240 21 11 6.5 3.5 | 10.7 51.3 250 20 10 7.3 4.0
9000 12.1 53.8 245 16 8 7.3 4.0 | 12.9 55.2 260 14 7 7.6 4.2
8000 14.9 58.8 270 9 5 6.0 3.3 | 15.9 60.6 290 9 4 6.9 3.8
7500 15.8 60.4 280 8 4 8.2 4.5 | 16.8 62.2 305 8 4 8.2 4.5
7000 16.9 62.4 290 7 4 6.7 3.7 | 18.1 64.6 315 8 4 6.8 3.7
6500 18.0 64.4 300 7 4 10.1 5.6 | 19.3 66.7 325 8 4 10.8 5.9
6000 19.4 66.9 300 7 4 8.3 4.5 | 20.8 69.4 325 8 4 9.0 4.9
5500 20.8 69.4 305 7 4 11.5 6.3 | 22.2 72.0 325 9 4 10.8 5.9
5000 22.4 72.3 305 7 4 9.8 5.4 | 23.8 74.8 325 8 4 9.5 5.2
4750 23.1 73.6 305 8 4 9.8 5.3 | 24.5 76.1 325 9 5 9.5 5.2
4500 23.8 74.8 305 7 4 10.6 5.8 | 25.2 77.4 325 9 4 10.6 5.8
4250 24.6 76.3 305 7 4 10.0 5.5 | 26.0 78.8 325 8 4 9.9 5.4
4000 25.3 77.5 305 7 4 9.7 5.3 | 26.7 80.1 325 8 4 9.1 5.0
3750 26.1 79.0 305 8 4 9.4 5.2 | 27.4 81.3 325 8 4 9.7 5.3
3500 26.8 80.2 300 7 4 14.2 7.8 | 28.1 82.6 325 8 4 11.7 6.4
3400 26.8 80.2 300 7 4 14.2 7.8 | 28.1 82.6 325 8 4 11.7 6.4
3300 28.3 82.9 305 7 4 24.1 13.2 | 29.1 84.4 325 8 4 14.0 7.7
3200 28.3 82.9 305 7 4 24.1 13.2 | 29.1 84.4 325 8 4 14.0 7.7
3100 28.3 82.9 305 7 4 24.1 13.2 | 29.1 84.4 325 8 4 14.0 7.7
3000 29.9 85.8 305 7 4 12.1 6.6 | 30.2 86.4 325 8 4 14.3 7.8
2900 M M M M M M M | M M M M M M M
________________________________________________________________________________
This product is issued twice per day, once by approximately 0630 MST/0730 MDT
(1330 UTC) and again by approximately 1830 MST/1930 MDT (0130 UTC). It is not
continuously monitored nor updated after its initial issuance.
The information contained herein is based on rawinsonde observation and/or
numerical weather prediction model data taken at the Boise Airport site in
Boise, Idaho at
Latitude: 43.56774
Longitude: -116.21089
Elevation: 2867 feet (874 meters)
and may not be representative of other areas in eastern Oregon or southwest
Idaho. Note that some elevations in numerical weather prediction models differ
from actual station elevations, which can lead to data which appear to be below
ground. 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.
082025