Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
567
UXUS97 KBOI 251306
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
706 AM MDT Friday, September 25, 2026
This forecast is for Friday, September 25, 2026:
If the trigger temperature of 83.3 F/28.5 C is reached...then
Thermal Soaring Index....................... Poor
Maximum rate of lift........................ 45 ft/min (0.2 m/s)
Maximum height of thermals.................. 5010 ft MSL (2043 ft AGL)
Forecast maximum temperature................... 79.0 F/26.6 C
Time of trigger temperature.................... None
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................. 3698 ft MSL (731 ft AGL)
Thermal soaring outlook for Saturday 09/26..... Poor
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 07:35:57 / 19:36:54 MDT
Total possible sunshine........... 12 hr 0 min 57 sec (720 min 57 sec)
Altitude of sun at 13:36:26 MDT... 44.62 degrees
Upper air data from rawinsonde observation taken on 09/25/2026 at 0600 MDT
Freezing level.................. 13655 ft MSL (10688 ft AGL)
Convective condensation level... 16751 ft MSL (13784 ft AGL)
Lifted condensation level....... 14156 ft MSL (11189 ft AGL)
Lifted index.................... +4.5
K index......................... +17.7
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 -59.7 -75.5 215 48 25 -2.0 -1.1 M M M M M
38000 -55.9 -68.6 215 47 24 7.5 4.1 M M M M M
36000 -50.9 -59.6 215 46 24 7.4 4.1 M M M M M
34000 -46.2 -51.2 215 45 23 8.2 4.5 M M M M M
32000 -41.3 -42.3 220 44 22 8.2 4.5 M M M M M
30000 -36.6 -33.9 215 44 22 7.6 4.2 45.9 114.6 14.6 M M
28000 -32.0 -25.6 210 45 23 7.6 4.2 44.3 111.7 13.7 M M
26000 -27.3 -17.1 210 44 23 8.0 4.4 42.7 108.9 12.9 M M
24000 -22.6 -8.7 210 42 22 6.9 3.8 41.4 106.5 12.1 M M
22000 -17.9 -0.2 210 36 19 7.2 3.9 39.1 102.4 10.5 M M
20000 -14.4 6.1 215 32 17 5.9 3.3 36.4 97.5 8.4 M M
18000 -10.8 12.6 220 31 16 6.8 3.7 34.1 93.3 6.4 M M
16000 -6.5 20.3 210 30 16 8.2 4.5 32.4 90.4 5.0 M M
14000 -1.0 30.2 195 26 14 9.3 5.1 32.0 89.6 4.7 M M
12000 4.4 39.9 195 21 11 8.7 4.8 31.6 88.9 4.4 M M
10000 9.4 48.9 220 16 8 8.0 4.4 30.7 87.2 3.7 M M
9000 11.8 53.2 235 17 9 8.4 4.6 30.2 86.3 3.2 M M
8000 15.1 59.2 245 19 10 8.8 4.8 29.8 85.6 2.9 M M
7500 16.1 61.0 240 19 10 6.8 3.7 29.3 84.7 2.5 M M
7000 17.4 63.3 240 18 9 8.3 4.5 29.1 84.3 2.2 M M
6500 18.4 65.1 225 17 9 6.0 3.3 28.6 83.5 1.8 M M
6000 19.3 66.7 210 16 8 6.7 3.7 28.1 82.6 1.3 M M
5500 20.1 68.2 190 16 8 4.5 2.5 27.4 81.4 0.6 M M
5000 20.8 69.4 170 17 9 5.9 3.2 26.7 80.1 -0.1 40 0.2
4750 21.3 70.3 160 20 10 6.5 3.6 26.5 79.7 -0.4 18 0.1
4500 21.7 71.1 155 19 10 5.2 2.9 26.2 79.1 -0.7 M M
4250 22.0 71.6 150 16 8 5.5 3.0 25.8 78.5 -1.0 M M
4000 22.3 72.1 145 15 7 -1.7 -0.9 25.4 77.6 -1.5 M M
3750 21.6 70.9 140 15 8 -15.2 -8.4 24.0 75.1 -3.0 M M
3500 20.2 68.4 135 13 7 -21.6 -11.9 22.0 71.5 -4.9 14 0.1
3400 20.2 68.4 135 13 7 -21.6 -11.9 22.0 71.5 -4.9 14 0.1
3300 18.5 65.3 125 10 5 -20.6 -11.3 19.9 67.7 -7.1 55 0.3
3200 18.5 65.3 125 10 5 -20.6 -11.3 19.9 67.7 -7.1 55 0.3
3100 18.5 65.3 125 10 5 -20.6 -11.3 19.9 67.7 -7.1 55 0.3
3000 16.9 62.4 110 7 4 -24.9 -13.6 17.8 64.0 -9.2 96 0.5
2900 M M M M M M M M M M M M
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
09/25/2026 at 0900 MDT | 09/25/2026 at 1200 MDT
|
CAPE... 0.0 LI... +2.7 | CAPE... 0.0 LI... +2.1
CINH... 0.0 K Index... +18.8 | CINH... -0.2 K Index... +19.6
|
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 -58.9 -74.0 225 45 23 -1.3 -0.7 | -58.1 -72.6 230 54 28 -1.0 -0.5
38000 -55.4 -67.7 225 46 24 6.8 3.7 | -54.8 -66.6 230 56 29 6.8 3.7
36000 -51.4 -60.5 220 48 25 6.8 3.7 | -50.8 -59.4 225 59 30 6.8 3.7
34000 -46.4 -51.5 220 49 25 7.9 4.3 | -46.0 -50.8 225 59 30 7.4 4.0
32000 -41.7 -43.1 220 48 25 7.9 4.3 | -41.6 -42.9 225 56 29 7.4 4.0
30000 -36.9 -34.4 220 47 24 8.2 4.5 | -37.1 -34.8 220 54 28 7.7 4.2
28000 -32.0 -25.6 220 46 24 8.2 4.5 | -32.5 -26.5 220 53 27 7.7 4.2
26000 -27.5 -17.5 220 45 23 7.3 4.0 | -27.8 -18.0 220 53 27 8.0 4.4
24000 -23.3 -9.9 215 44 23 7.1 3.9 | -23.1 -9.6 220 52 27 6.5 3.6
22000 -19.0 -2.2 215 42 22 7.1 3.9 | -19.1 -2.4 215 50 26 6.7 3.7
20000 -14.5 5.9 215 39 20 6.7 3.7 | -15.1 4.8 215 47 24 6.0 3.3
18000 -10.8 12.6 210 37 19 5.8 3.2 | -11.4 11.5 210 45 23 6.8 3.7
16000 -6.6 20.1 205 35 18 8.3 4.5 | -7.2 19.0 205 43 22 7.5 4.1
14000 -1.6 29.1 195 32 16 8.4 4.6 | -2.7 27.1 205 39 20 8.0 4.4
12000 3.0 37.4 200 23 12 7.0 3.9 | 1.8 35.2 215 33 17 6.7 3.7
10000 7.3 45.1 230 19 10 7.6 4.1 | 5.4 41.7 230 26 13 6.5 3.6
9000 9.6 49.3 240 20 10 7.7 4.2 | 7.4 45.3 235 21 11 7.8 4.3
8000 12.1 53.8 245 18 9 11.3 6.2 | 10.8 51.4 245 16 8 10.8 5.9
7500 13.9 57.0 245 17 9 6.4 3.5 | 11.9 53.4 245 16 8 6.4 3.5
7000 15.2 59.4 240 18 9 8.5 4.7 | 13.1 55.6 250 15 7 8.1 4.5
6500 16.4 61.5 235 17 9 7.3 4.0 | 14.5 58.1 245 14 7 8.5 4.7
6000 17.5 63.5 220 15 8 7.2 3.9 | 15.6 60.1 245 13 7 7.7 4.3
5500 18.4 65.1 200 14 7 5.2 2.9 | 16.8 62.2 245 12 6 8.4 4.6
5000 19.1 66.4 180 15 7 6.4 3.5 | 18.0 64.4 235 11 5 8.3 4.6
4750 19.6 67.3 170 17 9 6.5 3.6 | 18.7 65.7 235 10 5 9.2 5.0
4500 19.9 67.8 165 17 9 3.4 1.9 | 19.4 66.9 235 10 5 9.6 5.3
4250 20.2 68.4 160 16 8 3.0 1.7 | 20.1 68.2 230 10 5 9.6 5.3
4000 20.3 68.5 155 15 8 -1.8 -1.0 | 20.8 69.4 230 9 5 9.7 5.3
3750 19.9 67.8 150 15 8 -5.1 -2.8 | 21.5 70.7 235 9 5 9.7 5.3
3500 19.6 67.3 150 12 6 -3.5 -1.9 | 22.2 72.0 235 9 5 9.0 4.9
3400 19.6 67.3 150 12 6 -3.5 -1.9 | 22.2 72.0 235 9 5 9.0 4.9
3300 19.2 66.6 140 9 4 -5.3 -2.9 | 23.0 73.4 235 8 4 12.4 6.8
3200 19.2 66.6 140 9 4 -5.3 -2.9 | 23.0 73.4 235 8 4 12.4 6.8
3100 19.2 66.6 140 9 4 -5.3 -2.9 | 23.0 73.4 235 8 4 12.4 6.8
3000 18.8 65.8 135 7 4 -7.3 -4.0 | 24.6 76.3 230 8 4 36.0 19.8
2900 M M M M M M M | M M M M M M M
09/25/2026 at 1500 MDT | 09/25/2026 at 1800 MDT
|
CAPE... 0.0 LI... +1.6 | CAPE... 0.0 LI... +3.0
CINH... 0.0 K Index... +22.7 | CINH... -0.2 K Index... +21.9
|
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 -56.4 -69.5 235 57 29 -0.3 -0.2 | -54.4 -65.9 245 52 27 1.3 0.7
38000 -53.9 -65.0 235 61 31 5.3 2.9 | -52.1 -61.8 240 55 29 4.6 2.5
36000 -50.3 -58.5 230 64 33 5.3 2.9 | -49.0 -56.2 235 59 30 4.6 2.5
34000 -46.4 -51.5 230 64 33 7.6 4.2 | -45.8 -50.4 235 59 30 6.2 3.4
32000 -41.9 -43.4 230 62 32 7.6 4.2 | -42.1 -43.8 235 57 29 6.2 3.4
30000 -37.2 -35.0 225 60 31 8.0 4.4 | -37.9 -36.2 235 55 28 8.0 4.4
28000 -32.4 -26.3 225 58 30 8.0 4.4 | -33.1 -27.6 235 53 27 8.0 4.4
26000 -27.7 -17.9 225 57 29 8.0 4.4 | -28.1 -18.6 240 54 28 8.5 4.7
24000 -23.0 -9.4 230 56 29 6.7 3.7 | -23.1 -9.6 240 55 28 7.3 4.0
22000 -18.5 -1.3 225 55 29 6.7 3.7 | -18.2 -0.8 235 57 29 7.2 3.9
20000 -14.9 5.2 220 56 29 5.9 3.2 | -14.8 5.4 235 57 29 5.1 2.8
18000 -11.4 11.5 220 56 29 5.9 3.3 | -12.0 10.4 230 55 28 4.7 2.6
16000 -7.7 18.1 220 51 26 6.5 3.5 | -9.0 15.8 225 50 26 5.9 3.2
14000 -4.0 24.8 220 41 21 6.3 3.5 | -5.5 22.1 225 43 22 7.3 4.0
12000 -0.2 31.6 225 30 16 6.4 3.5 | -1.1 30.0 225 34 18 7.2 4.0
10000 3.6 38.5 235 20 10 7.5 4.1 | 2.6 36.7 245 23 12 5.9 3.3
9000 5.9 42.6 245 15 8 8.0 4.4 | 4.3 39.7 265 20 10 5.4 2.9
8000 9.1 48.4 280 14 7 10.1 5.5 | 6.5 43.7 290 22 11 7.5 4.1
7500 10.2 50.4 280 15 8 6.7 3.7 | 7.4 45.3 300 22 11 5.1 2.8
7000 11.4 52.5 285 15 8 8.0 4.4 | 8.5 47.3 300 23 12 6.6 3.6
6500 12.9 55.2 285 16 8 10.6 5.8 | 9.7 49.5 305 23 12 9.3 5.1
6000 14.3 57.7 285 17 9 9.3 5.1 | 11.0 51.8 305 23 12 8.5 4.6
5500 15.6 60.1 295 18 9 9.6 5.3 | 12.3 54.1 310 22 11 9.1 5.0
5000 17.1 62.8 290 18 9 9.7 5.3 | 13.7 56.7 310 21 11 9.0 4.9
4750 17.8 64.0 295 19 10 9.5 5.2 | 14.3 57.7 310 21 11 9.2 5.0
4500 18.6 65.5 295 18 9 10.4 5.7 | 15.1 59.2 310 20 10 10.6 5.8
4250 19.4 66.9 290 17 9 10.3 5.6 | 15.8 60.4 310 19 10 10.1 5.6
4000 20.1 68.2 290 17 9 9.2 5.0 | 16.5 61.7 310 18 9 8.8 4.8
3750 20.8 69.4 295 18 9 9.5 5.2 | 17.2 63.0 310 18 9 9.0 4.9
3500 21.5 70.7 295 16 8 11.3 6.2 | 17.9 64.2 310 16 8 10.2 5.6
3400 21.5 70.7 295 16 8 11.3 6.2 | 17.9 64.2 310 16 8 10.2 5.6
3300 22.5 72.5 290 15 8 15.8 8.7 | 18.7 65.7 310 14 7 10.9 6.0
3200 22.5 72.5 290 15 8 15.8 8.7 | 18.7 65.7 310 14 7 10.9 6.0
3100 22.5 72.5 290 15 8 15.8 8.7 | 18.7 65.7 310 14 7 10.9 6.0
3000 24.3 75.7 295 15 8 38.0 20.8 | 19.6 67.3 310 14 7 13.2 7.2
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