Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
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UXUS97 KBOI 271306
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
706 AM MDT Wednesday, August 27, 2025
This forecast is for Wednesday, August 27, 2025:
If the trigger temperature of 74.1 F/23.4 C is reached...then
Thermal Soaring Index....................... Poor
Maximum rate of lift........................ 21 ft/min (0.1 m/s)
Maximum height of thermals.................. 7105 ft MSL (4244 ft AGL)
Forecast maximum temperature................... 75.0 F/24.3 C
Time of trigger temperature.................... 1415 MDT
Time of overdevelopment........................ None
Middle/high clouds during soaring window....... Broken/overcast opaque middle
Surface winds during soaring window............ 20 mph or less
Height of the -3 thermal index................. 5120 ft MSL (2259 ft AGL)
Thermal soaring outlook for Thursday 08/28..... Poor
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 07:03:48 / 20:28:39 MDT
Total possible sunshine........... 13 hr 24 min 50 sec (804 min 50 sec)
Altitude of sun at 13:46:13 MDT... 54.74 degrees
Upper air data from rawinsonde observation taken on 08/27/2025 at 0600 MDT
Freezing level.................. 14040 ft MSL (11179 ft AGL)
Convective condensation level... 6299 ft MSL (3438 ft AGL)
Lifted condensation level....... 6832 ft MSL (3972 ft AGL)
Lifted index.................... -0.6
K index......................... +31.3
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 -51.5 -60.7 205 29 15 -5.0 -2.8 67.4 153.4 28.3 M M
38000 -50.3 -58.5 190 13 7 5.1 2.8 60.4 140.7 24.4 M M
36000 -47.9 -54.2 195 2 1 9.1 5.0 55.3 131.5 21.5 M M
34000 -42.4 -44.3 120 6 3 8.7 4.8 54.8 130.6 21.7 M M
32000 -37.3 -35.1 115 9 5 9.4 5.2 53.8 128.8 21.5 M M
30000 -31.3 -24.3 140 12 6 8.1 4.4 53.1 127.6 21.6 M M
28000 -26.6 -15.9 185 13 7 9.5 5.2 51.6 124.9 20.9 M M
26000 -21.9 -7.4 180 20 10 8.1 4.5 50.3 122.5 20.3 M M
24000 -17.5 0.5 180 10 5 5.3 2.9 48.6 119.4 19.4 M M
22000 -13.8 7.2 165 12 6 7.4 4.1 46.0 114.8 17.6 M M
20000 -9.7 14.5 175 13 7 5.2 2.8 44.1 111.3 16.2 M M
18000 -6.3 20.7 180 13 7 6.4 3.5 41.3 106.3 14.1 M M
16000 -2.8 27.0 180 11 6 5.5 3.0 38.0 100.4 11.4 M M
14000 0.1 32.2 240 5 3 3.3 1.8 34.8 94.6 8.7 M M
12000 3.1 37.6 255 5 3 9.0 4.9 31.7 89.1 6.0 M M
10000 6.7 44.1 190 6 3 4.5 2.4 29.6 85.2 3.9 M M
9000 8.4 47.1 215 5 3 4.8 2.6 28.4 83.1 2.7 M M
8000 10.1 50.2 225 6 3 6.9 3.8 27.3 81.1 1.6 M M
7500 11.0 51.8 235 4 2 5.5 3.0 26.6 80.0 0.9 M M
7000 11.3 52.3 255 3 2 2.6 1.4 25.6 78.0 -0.2 219 1.1
6500 12.0 53.6 190 4 2 5.2 2.8 24.9 76.8 -0.9 182 0.9
6000 12.7 54.9 165 8 4 5.4 2.9 24.2 75.6 -1.6 145 0.7
5500 13.5 56.3 165 7 4 5.3 2.9 23.5 74.3 -2.3 109 0.6
5000 14.2 57.6 160 6 3 4.7 2.6 22.9 73.2 -3.1 72 0.4
4750 14.5 58.1 160 5 2 3.9 2.1 22.4 72.4 -3.5 56 0.3
4500 14.8 58.6 175 2 1 5.8 3.2 22.0 71.7 -3.9 39 0.2
4250 15.3 59.5 265 1 1 7.0 3.8 21.8 71.3 -4.2 17 0.1
4000 15.8 60.4 355 2 1 6.7 3.6 21.6 70.9 -4.4 M M
3750 16.3 61.3 355 2 1 6.5 3.6 21.4 70.4 -4.7 M M
3500 16.6 61.9 340 1 1 5.9 3.2 21.1 70.0 -5.1 M M
3400 17.0 62.6 240 1 0 7.8 4.3 20.8 69.5 -5.4 M M
3300 17.0 62.6 240 1 0 7.8 4.3 20.8 69.5 -5.4 M M
3200 17.7 63.9 205 2 1 11.9 6.5 20.9 69.6 -5.5 M M
3100 17.7 63.9 205 2 1 11.9 6.5 20.9 69.6 -5.5 M M
3000 17.7 63.9 205 2 1 11.9 6.5 20.9 69.6 -5.5 M M
2900 18.4 65.1 200 3 2 4.5 2.5 20.9 69.6 -5.5 M M
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
08/27/2025 at 0900 MDT | 08/27/2025 at 1200 MDT
|
CAPE... +696.1 LI... -2.1 | CAPE... +739.4 LI... -2.3
CINH... 0.0 K Index... +31.5 | CINH... 0.0 K Index... +30.6
|
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 -49.5 -57.1 215 21 11 1.8 1.0 | -49.2 -56.6 200 20 10 1.5 0.8
38000 -48.4 -55.1 205 14 7 1.9 1.0 | -48.3 -54.9 180 14 7 1.6 0.9
36000 -47.3 -53.1 185 8 4 2.1 1.2 | -47.3 -53.1 145 12 6 1.8 1.0
34000 -43.2 -45.8 145 6 3 8.5 4.7 | -43.3 -45.9 130 12 6 8.4 4.6
32000 -38.1 -36.6 115 8 4 8.5 4.7 | -38.2 -36.8 125 13 7 8.5 4.6
30000 -33.0 -27.4 125 8 4 8.5 4.7 | -33.2 -27.8 135 11 6 8.5 4.6
28000 -27.9 -18.2 155 7 4 8.7 4.8 | -28.1 -18.6 160 9 5 8.6 4.7
26000 -23.4 -10.1 180 7 4 7.4 4.0 | -23.0 -9.4 190 7 4 7.5 4.1
24000 -18.5 -1.3 195 8 4 7.3 4.0 | -18.7 -1.7 215 7 4 6.9 3.8
22000 -14.2 6.4 210 9 5 7.3 4.0 | -14.7 5.5 235 7 3 7.0 3.8
20000 -10.5 13.1 215 8 4 6.4 3.5 | -10.8 12.6 260 9 5 6.7 3.7
18000 -7.0 19.4 215 7 4 6.1 3.4 | -7.0 19.4 265 11 6 6.5 3.6
16000 -3.5 25.7 235 7 4 6.0 3.3 | -3.3 26.1 270 12 6 6.1 3.3
14000 -0.4 31.3 255 7 4 5.2 2.9 | -0.4 31.3 280 12 6 5.3 2.9
12000 2.7 36.9 275 7 4 6.3 3.4 | 2.6 36.7 290 15 7 5.8 3.2
10000 6.4 43.5 285 7 4 6.0 3.3 | 6.1 43.0 295 15 8 6.2 3.4
9000 8.0 46.4 285 6 3 6.0 3.3 | 8.2 46.8 295 14 7 5.8 3.2
8000 10.1 50.2 275 6 3 6.3 3.5 | 9.9 49.8 290 14 7 6.5 3.6
7500 10.9 51.6 270 5 2 5.0 2.7 | 10.7 51.3 290 12 6 4.9 2.7
7000 11.6 52.9 265 4 2 5.6 3.1 | 11.4 52.5 290 12 6 5.5 3.0
6500 12.3 54.1 255 5 2 5.1 2.8 | 12.1 53.8 290 11 6 5.7 3.1
6000 13.1 55.6 260 5 2 5.3 2.9 | 13.0 55.4 290 10 5 5.7 3.1
5500 13.8 56.8 250 5 3 5.2 2.9 | 13.8 56.8 285 8 4 7.3 4.0
5000 14.5 58.1 255 5 3 4.7 2.6 | 14.8 58.6 285 7 4 7.9 4.3
4750 14.8 58.6 255 5 3 5.1 2.8 | 15.4 59.7 280 7 4 8.2 4.5
4500 15.2 59.4 255 5 3 6.2 3.4 | 15.9 60.6 280 7 3 8.0 4.4
4250 15.6 60.1 255 5 3 6.9 3.8 | 16.5 61.7 285 6 3 8.6 4.7
4000 16.1 61.0 250 5 3 7.5 4.1 | 17.2 63.0 280 6 3 9.1 5.0
3750 16.6 61.9 250 5 3 7.6 4.2 | 17.8 64.0 280 6 3 9.6 5.2
3500 17.1 62.8 250 4 2 7.7 4.2 | 18.5 65.3 280 5 3 10.9 6.0
3400 17.1 62.8 250 4 2 7.7 4.2 | 18.5 65.3 280 5 3 10.9 6.0
3300 17.6 63.7 250 4 2 6.9 3.8 | 19.3 66.7 280 5 3 11.4 6.3
3200 17.6 63.7 250 4 2 6.9 3.8 | 19.3 66.7 280 5 3 11.4 6.3
3100 17.6 63.7 250 4 2 6.9 3.8 | 19.3 66.7 280 5 3 11.4 6.3
3000 18.1 64.6 250 4 2 7.9 4.4 | 20.1 68.2 275 5 3 11.7 6.4
2900 M M M M M M M | M M M M M M M
08/27/2025 at 1500 MDT | 08/27/2025 at 1800 MDT
|
CAPE... +747.9 LI... -2.1 | CAPE... +738.5 LI... -2.2
CINH... -0.2 K Index... +29.3 | CINH... -17.9 K Index... +29.4
|
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 -48.9 -56.0 200 20 10 1.4 0.8 | -49.0 -56.2 195 20 10 1.4 0.8
38000 -48.0 -54.4 180 15 8 1.5 0.8 | -48.1 -54.6 180 15 8 1.5 0.8
36000 -47.1 -52.8 145 13 7 1.7 0.9 | -47.2 -53.0 155 13 7 1.7 0.9
34000 -43.2 -45.8 140 13 7 8.2 4.5 | -43.6 -46.5 155 12 6 7.6 4.2
32000 -38.3 -36.9 140 13 7 8.2 4.5 | -39.0 -38.2 170 13 7 7.7 4.2
30000 -33.4 -28.1 155 10 5 8.4 4.6 | -33.9 -29.0 185 12 6 8.8 4.9
28000 -28.3 -18.9 185 9 5 8.5 4.7 | -28.6 -19.5 200 11 6 9.0 4.9
26000 -23.3 -9.9 210 8 4 7.5 4.1 | -23.3 -9.9 225 11 6 7.8 4.3
24000 -18.9 -2.0 230 8 4 7.2 3.9 | -18.9 -2.0 240 12 6 7.0 3.8
22000 -14.7 5.5 245 9 4 7.2 3.9 | -14.8 5.4 250 12 6 7.0 3.8
20000 -10.7 12.7 260 10 5 6.8 3.7 | -10.8 12.6 265 12 6 6.7 3.7
18000 -6.9 19.6 270 13 7 5.9 3.3 | -7.4 18.7 290 15 8 5.5 3.0
16000 -3.7 25.3 280 19 10 5.6 3.1 | -4.2 24.4 295 23 12 5.6 3.1
14000 -0.6 30.9 290 22 12 5.5 3.0 | -0.9 30.4 295 28 14 5.9 3.3
12000 2.8 37.0 295 26 13 5.9 3.2 | 2.9 37.2 300 29 15 6.9 3.8
10000 6.6 43.9 300 26 13 6.7 3.7 | 7.0 44.6 300 27 14 7.3 4.0
9000 9.0 48.2 300 23 12 6.5 3.5 | 9.6 49.3 300 23 12 7.5 4.1
8000 10.9 51.6 300 21 11 7.4 4.1 | 11.9 53.4 300 21 11 7.6 4.2
7500 11.6 52.9 300 18 9 4.3 2.3 | 12.7 54.9 300 19 10 6.2 3.4
7000 12.4 54.3 305 14 7 5.7 3.1 | 13.7 56.7 300 16 8 7.1 3.9
6500 13.3 55.9 305 12 6 7.2 3.9 | 14.7 58.5 305 14 7 6.3 3.5
6000 14.2 57.6 300 10 5 6.6 3.6 | 15.5 59.9 305 11 6 6.2 3.4
5500 15.3 59.5 305 8 4 9.4 5.2 | 16.6 61.9 310 9 5 9.4 5.2
5000 16.6 61.9 300 7 4 9.9 5.4 | 17.9 64.2 310 8 4 9.4 5.2
4750 17.3 63.1 300 6 3 9.8 5.4 | 18.5 65.3 310 7 4 9.1 5.0
4500 18.0 64.4 300 6 3 9.1 5.0 | 19.2 66.6 310 7 3 8.4 4.6
4250 18.7 65.7 300 6 3 9.8 5.4 | 19.8 67.6 310 7 3 9.6 5.2
4000 19.4 66.9 300 6 3 10.9 6.0 | 20.6 69.1 310 6 3 11.2 6.2
3750 20.2 68.4 300 5 3 9.5 5.2 | 21.4 70.5 310 6 3 9.5 5.2
3500 20.9 69.6 300 5 3 10.7 5.9 | 22.0 71.6 310 6 3 8.8 4.8
3400 20.9 69.6 300 5 3 10.7 5.9 | 22.0 71.6 310 6 3 8.8 4.8
3300 21.8 71.2 300 5 3 16.6 9.1 | 22.7 72.9 310 5 3 12.0 6.6
3200 21.8 71.2 300 5 3 16.6 9.1 | 22.7 72.9 310 5 3 12.0 6.6
3100 21.8 71.2 300 5 3 16.6 9.1 | 22.7 72.9 310 5 3 12.0 6.6
3000 22.9 73.2 300 5 3 9.1 5.0 | 23.5 74.3 310 6 3 7.2 3.9
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