Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
647
UXUS97 KBOI 151306
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
706 AM MDT Friday, May 15, 2026
This forecast is for Friday, May 15, 2026:
If the trigger temperature of 62.9 F/17.2 C is reached...then
Thermal Soaring Index....................... Poor
Maximum rate of lift........................ 0 ft/min (0.0 m/s)
Maximum height of thermals.................. 0 ft MSL (0 ft AGL)
Forecast maximum temperature................... 68.0 F/20.5 C
Time of trigger temperature.................... 1300 MDT
Time of overdevelopment........................ 1900 MDT
Middle/high clouds during soaring window....... None
Surface winds during soaring window............ 20 mph or less
Height of the -3 thermal index................. None
Thermal soaring outlook for Saturday 05/16..... Good
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 06:19:34 / 21:02:52 MDT
Total possible sunshine........... 14 hr 43 min 18 sec (883 min 18 sec)
Altitude of sun at 13:41:13 MDT... 63.97 degrees
Upper air data from rawinsonde observation taken on 05/15/2026 at 0600 MDT
Freezing level.................. Entire airmass below 32 F / 0 C
Convective condensation level... 14572 ft MSL (14572 ft AGL)
Lifted condensation level....... 10011 ft MSL (10011 ft AGL)
Lifted index.................... +5.4
K index......................... -1.0
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
--------------------------------------------------------------------------------
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
05/15/2026 at 0900 MDT | 05/15/2026 at 1200 MDT
|
CAPE... +0.1 LI... +7.8 | CAPE... 0.0 LI... +6.9
CINH... -0.2 K Index... -10.9 | CINH... 0.0 K Index... -9.3
|
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 -55.1 -67.2 260 72 37 -1.5 -0.8 | -56.2 -69.2 260 69 35 -1.5 -0.8
38000 -54.9 -66.8 265 75 39 2.3 1.2 | -55.8 -68.4 260 71 37 2.4 1.3
36000 -53.5 -64.3 265 73 38 2.3 1.2 | -54.4 -65.9 260 71 36 2.4 1.3
34000 -51.4 -60.5 270 71 36 6.5 3.6 | -52.4 -62.3 260 70 36 7.6 4.2
32000 -47.5 -53.5 270 68 35 6.5 3.6 | -48.1 -54.6 265 68 35 7.2 3.9
30000 -43.6 -46.5 270 65 34 7.2 3.9 | -43.8 -46.8 270 66 34 7.6 4.2
28000 -39.3 -38.7 270 62 32 7.2 3.9 | -39.2 -38.6 265 62 32 7.6 4.2
26000 -35.0 -31.0 270 60 31 7.0 3.8 | -34.2 -29.6 265 59 31 7.2 3.9
24000 -30.8 -23.4 265 59 30 7.0 3.8 | -29.8 -21.6 260 58 30 7.1 3.9
22000 -26.5 -15.7 265 57 30 7.3 4.0 | -25.7 -14.3 265 56 29 6.9 3.8
20000 -21.4 -6.5 265 53 28 7.8 4.3 | -21.5 -6.7 265 52 27 7.1 3.9
18000 -16.8 1.8 270 47 24 7.5 4.1 | -17.2 1.0 265 46 24 7.0 3.8
16000 -12.7 9.1 265 41 21 6.3 3.4 | -13.0 8.6 265 41 21 6.7 3.7
14000 -8.7 16.3 265 36 19 7.0 3.9 | -9.1 15.6 265 37 19 6.5 3.6
12000 -5.2 22.6 275 31 16 4.1 2.3 | -5.4 22.3 275 32 16 5.8 3.2
10000 -4.3 24.3 285 19 10 1.9 1.1 | -2.6 27.3 285 21 11 3.5 1.9
9000 -3.3 26.1 295 16 8 4.8 2.6 | -1.6 29.1 285 15 8 2.9 1.6
8000 -1.6 29.1 310 15 8 7.5 4.1 | -0.6 30.9 295 11 6 6.4 3.5
7500 -0.1 31.8 315 15 8 5.6 3.0 | 0.1 32.2 300 10 5 5.5 3.0
7000 1.0 33.8 320 15 8 7.5 4.1 | 1.2 34.2 300 10 5 7.6 4.2
6500 2.1 35.8 325 16 8 8.1 4.4 | 2.2 36.0 305 10 5 8.3 4.6
6000 3.4 38.1 325 16 8 8.3 4.6 | 3.7 38.7 300 10 5 9.4 5.2
5500 4.4 39.9 325 16 8 7.3 4.0 | 4.9 40.8 305 10 5 9.7 5.3
5000 5.6 42.1 325 15 8 6.9 3.8 | 6.6 43.9 300 10 5 9.7 5.3
4750 6.0 42.8 320 15 8 6.5 3.6 | 7.3 45.1 300 10 5 8.8 4.8
4500 6.6 43.9 320 14 7 9.5 5.2 | 8.0 46.4 300 10 5 11.2 6.2
4250 7.3 45.1 315 12 6 7.0 3.9 | 8.9 48.0 300 10 5 10.9 6.0
4000 7.5 45.5 315 12 6 2.3 1.3 | 9.6 49.3 300 10 5 9.6 5.2
3750 7.8 46.0 310 11 6 5.5 3.0 | 10.4 50.7 300 10 5 10.0 5.5
3500 8.4 47.1 310 10 5 10.7 5.9 | 11.2 52.2 300 9 5 14.7 8.1
3400 8.4 47.1 310 10 5 10.7 5.9 | 11.2 52.2 300 9 5 14.7 8.1
3300 9.2 48.6 310 9 5 12.4 6.8 | 12.6 54.7 300 9 5 22.2 12.2
3200 9.2 48.6 310 9 5 12.4 6.8 | 12.6 54.7 300 9 5 22.2 12.2
3100 9.2 48.6 310 9 5 12.4 6.8 | 12.6 54.7 300 9 5 22.2 12.2
3000 10.1 50.2 305 9 5 12.3 6.7 | 14.1 57.4 300 9 5 14.7 8.0
2900 M M M M M M M | M M M M M M M
05/15/2026 at 1500 MDT | 05/15/2026 at 1800 MDT
|
CAPE... 0.0 LI... +5.6 | CAPE... 0.0 LI... +5.0
CINH... 0.0 K Index... -11.4 | CINH... 0.0 K Index... -1.0
|
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 -57.6 -71.7 260 64 33 -2.5 -1.4 | -58.2 -72.8 260 62 32 -2.8 -1.5
38000 -57.4 -71.3 260 65 33 2.8 1.5 | -58.0 -72.4 260 63 32 3.4 1.8
36000 -55.8 -68.4 270 63 32 2.8 1.5 | -56.0 -68.8 265 61 31 3.4 1.8
34000 -53.5 -64.3 275 62 32 8.8 4.9 | -53.4 -64.1 265 59 31 8.4 4.6
32000 -48.4 -55.1 275 60 31 8.5 4.6 | -48.6 -55.5 265 59 30 8.1 4.4
30000 -43.4 -46.1 275 58 30 7.7 4.2 | -43.7 -46.7 260 58 30 8.4 4.6
28000 -38.7 -37.7 275 55 28 7.8 4.3 | -38.6 -37.5 260 56 29 8.4 4.6
26000 -33.5 -28.3 275 52 27 7.5 4.1 | -33.2 -27.8 260 52 27 7.6 4.2
24000 -29.0 -20.2 270 51 26 7.1 3.9 | -28.7 -19.7 265 47 24 7.4 4.1
22000 -25.0 -13.0 270 50 26 6.7 3.7 | -24.3 -11.7 265 48 25 7.2 4.0
20000 -21.2 -6.2 265 46 24 6.2 3.4 | -20.6 -5.1 265 46 24 5.7 3.1
18000 -17.3 0.9 270 42 21 6.9 3.8 | -17.2 1.0 265 42 22 5.7 3.1
16000 -13.2 8.2 265 38 20 6.8 3.7 | -13.4 7.9 265 37 19 6.8 3.7
14000 -9.2 15.4 270 36 18 6.2 3.4 | -9.5 14.9 270 33 17 6.2 3.4
12000 -5.7 21.7 275 30 15 5.9 3.2 | -5.7 21.7 270 26 14 6.7 3.7
10000 -2.3 27.9 285 21 11 5.9 3.3 | -1.4 29.5 275 21 11 7.7 4.2
9000 -0.1 31.8 290 16 8 5.9 3.2 | 1.4 34.5 280 17 9 7.7 4.2
8000 1.8 35.2 295 13 7 8.5 4.7 | 3.9 39.0 285 14 7 10.4 5.7
7500 2.6 36.7 295 11 6 4.8 2.7 | 5.0 41.0 290 12 6 5.6 3.1
7000 3.7 38.7 300 10 5 7.2 3.9 | 6.1 43.0 295 10 5 7.4 4.1
6500 4.6 40.3 305 10 5 8.4 4.6 | 7.3 45.1 305 8 4 8.8 4.8
6000 6.1 43.0 305 10 5 9.8 5.4 | 8.5 47.3 315 7 4 7.5 4.1
5500 7.4 45.3 305 10 5 9.8 5.4 | 9.7 49.5 330 7 4 9.4 5.1
5000 9.1 48.4 305 10 5 9.9 5.4 | 11.1 52.0 330 7 3 9.7 5.3
4750 9.8 49.6 305 10 5 9.1 5.0 | 11.8 53.2 335 7 4 10.0 5.5
4500 10.6 51.1 305 10 5 11.3 6.2 | 12.6 54.7 335 7 4 10.1 5.6
4250 11.4 52.5 305 9 5 10.9 6.0 | 13.3 55.9 335 7 3 9.9 5.4
4000 12.2 54.0 305 9 5 9.8 5.4 | 14.0 57.2 335 6 3 9.2 5.0
3750 12.9 55.2 305 9 5 9.6 5.2 | 14.7 58.5 335 7 3 9.3 5.1
3500 13.7 56.7 305 9 4 13.8 7.6 | 15.5 59.9 335 6 3 11.2 6.2
3400 13.7 56.7 305 9 4 13.8 7.6 | 15.5 59.9 335 6 3 11.2 6.2
3300 15.1 59.2 305 8 4 23.0 12.6 | 16.4 61.5 335 6 3 14.3 7.9
3200 15.1 59.2 305 8 4 23.0 12.6 | 16.4 61.5 335 6 3 14.3 7.9
3100 15.1 59.2 305 8 4 23.0 12.6 | 16.4 61.5 335 6 3 14.3 7.9
3000 16.7 62.1 305 9 4 16.5 9.1 | 17.6 63.7 335 6 3 18.9 10.4
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