Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
549
UXUS97 KBOI 301305
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
705 AM MDT Saturday, August 30, 2025
This forecast is for Saturday, August 30, 2025:
If the trigger temperature of 86.5 F/30.3 C is reached...then
Thermal Soaring Index....................... Excellent
Maximum rate of lift........................ 1121 ft/min (5.7 m/s)
Maximum height of thermals.................. 15153 ft MSL (12292 ft AGL)
Forecast maximum temperature................... 91.0 F/33.2 C
Time of trigger temperature.................... 1345 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................. 5669 ft MSL (2808 ft AGL)
Thermal soaring outlook for Sunday 08/31....... Excellent
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 07:07:09 / 20:23:29 MDT
Total possible sunshine........... 13 hr 16 min 20 sec (796 min 20 sec)
Altitude of sun at 13:45:19 MDT... 53.76 degrees
Upper air data from rawinsonde observation taken on 08/30/2025 at 0600 MDT
Freezing level.................. 13657 ft MSL (10796 ft AGL)
Convective condensation level... 14297 ft MSL (11436 ft AGL)
Lifted condensation level....... 14526 ft MSL (11666 ft AGL)
Lifted index.................... -2.3
K index......................... +21.7
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 -55.9 -68.6 295 58 30 -1.6 -0.9 62.0 143.6 18.9 M M
38000 -53.4 -64.1 300 63 33 6.1 3.4 56.9 134.4 16.1 M M
36000 -51.0 -59.8 280 32 17 0.7 0.4 51.9 125.4 13.1 M M
34000 -46.9 -52.4 280 27 14 8.8 4.8 49.4 120.9 11.6 M M
32000 -41.5 -42.7 280 23 12 9.1 5.0 48.7 119.6 11.4 M M
30000 -35.7 -32.3 280 24 12 8.4 4.6 47.7 117.9 11.0 M M
28000 -30.7 -23.3 285 18 9 8.3 4.5 46.5 115.8 10.4 M M
26000 -26.4 -15.5 280 17 9 8.2 4.5 44.5 112.1 9.1 M M
24000 -22.3 -8.1 265 7 4 5.5 3.0 42.3 108.1 7.5 M M
22000 -18.6 -1.5 265 10 5 7.9 4.3 39.7 103.4 5.6 M M
20000 -14.9 5.2 265 6 3 5.8 3.2 37.1 98.8 3.5 M M
18000 -11.2 11.8 335 10 5 9.4 5.2 34.9 94.8 1.4 M M
16000 -5.6 21.9 345 13 7 9.0 5.0 33.9 93.0 0.5 M M
14000 -0.7 30.7 335 13 7 9.2 5.1 32.9 91.3 -0.4 988 5.0
12000 4.8 40.6 320 7 4 9.2 5.1 32.6 90.7 -0.7 763 3.9
10000 9.9 49.8 310 2 1 9.4 5.1 31.9 89.4 -1.6 553 2.8
9000 12.7 54.9 255 2 1 9.4 5.2 31.8 89.3 -1.6 437 2.2
8000 15.4 59.7 075 4 2 8.5 4.6 31.6 88.8 -1.9 328 1.7
7500 16.6 61.9 110 3 2 8.4 4.6 31.3 88.4 -2.1 276 1.4
7000 17.8 64.0 155 4 2 8.4 4.6 31.2 88.1 -2.3 225 1.1
6500 19.1 66.4 165 2 1 8.4 4.6 30.9 87.7 -2.6 173 0.9
6000 20.3 68.5 250 1 0 8.4 4.6 30.7 87.3 -2.8 121 0.6
5500 21.5 70.7 000 0 0 8.3 4.6 30.5 87.0 -3.1 69 0.3
5000 22.2 72.0 085 2 1 4.2 2.3 29.8 85.6 -3.9 34 0.2
4750 22.6 72.7 120 1 1 6.7 3.7 29.5 85.2 -4.2 14 0.1
4500 23.1 73.6 190 1 1 6.8 3.7 29.3 84.7 -4.5 M M
4250 23.4 74.1 215 2 1 1.3 0.7 28.9 84.1 -4.9 M M
4000 23.1 73.6 225 4 2 -4.6 -2.5 28.0 82.4 -6.0 M M
3750 22.6 72.7 215 4 2 -7.0 -3.8 26.9 80.3 -7.2 M M
3500 21.8 71.2 190 3 2 -10.8 -5.9 25.4 77.7 -8.7 3 0.0
3400 20.9 69.6 170 3 2 -11.2 -6.2 23.8 74.9 -10.4 21 0.1
3300 20.9 69.6 170 3 2 -11.2 -6.2 23.8 74.9 -10.4 21 0.1
3200 20.1 68.2 150 4 2 -11.1 -6.1 22.3 72.1 -12.0 40 0.2
3100 20.1 68.2 150 4 2 -11.1 -6.1 22.3 72.1 -12.0 40 0.2
3000 20.1 68.2 150 4 2 -11.1 -6.1 22.3 72.1 -12.0 40 0.2
2900 19.2 66.6 140 5 3 -11.2 -6.2 20.7 69.3 -13.6 58 0.3
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
08/30/2025 at 0900 MDT | 08/30/2025 at 1200 MDT
|
CAPE... +0.3 LI... -2.6 | CAPE... +224.4 LI... -2.4
CINH... -20.9 K Index... +21.7 | CINH... -143.4 K Index... +21.2
|
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
--------------------------------------------------------------------------------
40000 -55.5 -67.9 290 60 31 6.2 3.4 | -55.4 -67.7 275 51 26 6.6 3.6
38000 -51.9 -61.4 295 57 29 6.0 3.3 | -51.7 -61.1 280 48 25 6.0 3.3
36000 -48.3 -54.9 300 55 28 6.1 3.3 | -48.1 -54.6 285 46 24 6.1 3.3
34000 -44.5 -48.1 295 46 24 6.3 3.5 | -43.8 -46.8 290 42 22 7.5 4.1
32000 -40.8 -41.4 290 35 18 6.3 3.5 | -39.3 -38.7 295 38 19 7.5 4.1
30000 -36.5 -33.7 285 29 15 7.5 4.1 | -35.1 -31.2 295 34 18 6.7 3.7
28000 -32.0 -25.6 290 25 13 7.5 4.1 | -31.1 -24.0 285 31 16 6.6 3.6
26000 -27.4 -17.3 290 21 11 7.7 4.2 | -26.3 -15.3 290 23 12 7.2 3.9
24000 -22.5 -8.5 290 17 9 6.4 3.5 | -22.0 -7.6 290 18 9 7.1 3.9
22000 -18.6 -1.5 280 11 6 6.3 3.5 | -17.8 -0.0 285 16 8 6.6 3.6
20000 -15.1 4.8 280 10 5 6.1 3.3 | -14.6 5.7 285 11 6 5.3 2.9
18000 -11.0 12.2 300 10 5 7.9 4.3 | -10.9 12.4 300 10 5 7.5 4.1
16000 -6.2 20.8 320 11 6 8.2 4.5 | -6.2 20.8 320 10 5 8.2 4.5
14000 -1.3 29.7 320 10 5 8.7 4.8 | -1.2 29.8 325 8 4 8.9 4.9
12000 4.1 39.4 320 6 3 9.2 5.0 | 4.3 39.7 320 5 3 9.1 5.0
10000 9.4 48.9 295 2 1 8.6 4.7 | 9.6 49.3 275 1 1 8.3 4.6
9000 11.9 53.4 210 1 1 8.7 4.8 | 12.7 54.9 180 3 1 8.6 4.7
8000 15.1 59.2 165 2 1 11.5 6.3 | 15.2 59.4 170 4 2 11.0 6.1
7500 16.5 61.7 155 2 1 6.2 3.4 | 16.6 61.9 160 4 2 6.1 3.4
7000 17.5 63.5 150 2 1 6.0 3.3 | 17.6 63.7 165 5 2 6.1 3.4
6500 18.3 64.9 140 1 1 7.4 4.0 | 18.4 65.1 160 5 3 6.7 3.7
6000 19.3 66.7 135 1 1 5.4 3.0 | 19.2 66.6 155 5 3 4.3 2.4
5500 19.8 67.6 135 2 1 4.1 2.2 | 19.7 67.5 155 6 3 4.8 2.6
5000 20.0 68.0 140 3 2 -0.9 -0.5 | 20.2 68.4 155 7 3 4.0 2.2
4750 19.8 67.6 145 4 2 -1.4 -0.8 | 20.5 68.9 155 6 3 4.8 2.6
4500 19.7 67.5 140 5 3 -1.9 -1.1 | 20.9 69.6 160 6 3 7.0 3.9
4250 19.5 67.1 135 6 3 -2.1 -1.2 | 21.5 70.7 160 6 3 9.4 5.1
4000 19.4 66.9 135 6 3 -3.0 -1.7 | 22.3 72.1 160 6 3 10.6 5.8
3750 19.2 66.6 135 7 3 -0.1 -0.1 | 23.0 73.4 165 6 3 9.0 5.0
3500 19.3 66.7 120 4 2 0.5 0.2 | 23.7 74.7 165 5 3 11.3 6.2
3400 19.3 66.7 120 4 2 0.5 0.2 | 23.7 74.7 165 5 3 11.3 6.2
3300 19.1 66.4 115 4 2 -7.1 -3.9 | 24.8 76.6 165 5 3 18.8 10.3
3200 19.1 66.4 115 4 2 -7.1 -3.9 | 24.8 76.6 165 5 3 18.8 10.3
3100 19.1 66.4 115 4 2 -7.1 -3.9 | 24.8 76.6 165 5 3 18.8 10.3
3000 18.8 65.8 115 4 2 8.8 4.8 | 25.9 78.6 165 5 3 4.5 2.5
2900 M M M M M M M | M M M M M M M
08/30/2025 at 1500 MDT | 08/30/2025 at 1800 MDT
|
CAPE... +236.5 LI... -1.9 | CAPE... +1.2 LI... +0.6
CINH... -31.7 K Index... +19.6 | CINH... -3.8 K Index... +18.3
|
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 -55.6 -68.1 265 48 24 6.7 3.7 | -55.9 -68.6 260 46 24 6.7 3.7
38000 -51.9 -61.4 270 45 23 6.2 3.4 | -52.1 -61.8 265 44 23 6.2 3.4
36000 -48.1 -54.6 275 42 22 6.3 3.4 | -48.3 -54.9 270 42 22 6.3 3.4
34000 -43.8 -46.8 280 39 20 7.5 4.1 | -44.0 -47.2 275 39 20 7.6 4.1
32000 -39.2 -38.6 285 37 19 7.5 4.1 | -39.5 -39.1 280 36 19 7.6 4.2
30000 -34.7 -30.5 285 33 17 7.6 4.2 | -34.8 -30.6 285 32 17 7.7 4.2
28000 -30.1 -22.2 285 30 15 7.6 4.2 | -30.2 -22.4 290 28 14 7.7 4.2
26000 -25.6 -14.1 290 25 13 6.7 3.7 | -25.3 -13.5 295 24 12 7.4 4.0
24000 -21.3 -6.3 295 21 11 7.7 4.2 | -20.8 -5.4 295 20 10 7.4 4.1
22000 -16.7 1.9 290 17 9 6.8 3.8 | -16.4 2.5 300 15 8 7.0 3.8
20000 -13.5 7.7 285 13 7 5.4 2.9 | -12.5 9.5 295 13 7 6.4 3.5
18000 -10.2 13.6 285 9 5 6.4 3.5 | -9.1 15.6 280 11 6 6.1 3.3
16000 -6.0 21.2 305 8 4 8.2 4.5 | -5.1 22.8 280 8 4 7.4 4.0
14000 -0.8 30.6 320 6 3 9.0 5.0 | -0.2 31.6 290 6 3 8.7 4.8
12000 4.6 40.3 325 4 2 9.1 5.0 | 5.1 41.2 310 3 1 9.2 5.1
10000 10.1 50.2 305 1 1 9.1 5.0 | 10.7 51.3 005 1 1 9.4 5.2
9000 13.4 56.1 180 2 1 8.4 4.6 | 14.1 57.4 055 1 1 8.8 4.8
8000 16.1 61.0 170 3 2 6.7 3.7 | 17.1 62.8 080 1 1 7.2 3.9
7500 17.1 62.8 170 4 2 9.6 5.2 | 18.1 64.6 090 1 1 9.9 5.4
7000 18.4 65.1 170 4 2 8.0 4.4 | 19.5 67.1 095 1 1 8.2 4.5
6500 19.6 67.3 170 4 2 9.7 5.3 | 20.8 69.4 100 1 1 10.8 5.9
6000 20.8 69.4 170 4 2 8.7 4.8 | 22.3 72.1 100 1 1 9.9 5.4
5500 22.2 72.0 170 4 2 10.4 5.7 | 23.8 74.8 100 1 1 10.0 5.5
5000 23.7 74.7 170 4 2 10.7 5.9 | 25.3 77.5 100 1 1 10.6 5.8
4750 24.5 76.1 170 4 2 10.0 5.5 | 26.1 79.0 100 1 1 10.0 5.5
4500 25.2 77.4 170 4 2 9.4 5.2 | 26.8 80.2 105 1 1 9.1 5.0
4250 25.9 78.6 175 4 2 10.2 5.6 | 27.5 81.5 105 1 1 9.7 5.3
4000 26.7 80.1 175 4 2 11.1 6.1 | 28.2 82.8 105 1 1 10.2 5.6
3750 27.5 81.5 175 4 2 9.4 5.2 | 29.0 84.2 105 1 1 9.5 5.2
3500 28.2 82.8 175 3 2 12.7 7.0 | 29.7 85.5 105 1 1 10.1 5.5
3400 28.2 82.8 175 3 2 12.7 7.0 | 29.7 85.5 105 1 1 10.1 5.5
3300 29.5 85.1 175 3 2 22.7 12.4 | 30.5 86.9 105 1 0 12.6 6.9
3200 29.5 85.1 175 3 2 22.7 12.4 | 30.5 86.9 105 1 0 12.6 6.9
3100 29.5 85.1 175 3 2 22.7 12.4 | 30.5 86.9 105 1 0 12.6 6.9
3000 30.8 87.4 175 3 2 3.7 2.0 | 31.3 88.3 105 1 0 8.2 4.5
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