Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
266
UXUS97 KBOI 051305
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
605 AM MST Friday, December 5, 2025
This forecast is for Friday, December 5, 2025:
If the trigger temperature of 52.1 F/11.2 C is reached...then
Thermal Soaring Index....................... Poor
Maximum rate of lift........................ 0 ft/min (0.0 m/s)
Maximum height of thermals.................. 4619 ft MSL (1758 ft AGL)
Forecast maximum temperature................... 44.0 F/7.1 C
Time of trigger temperature.................... None
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................. 3850 ft MSL (989 ft AGL)
Thermal soaring outlook for Saturday 12/06..... Poor
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 08:02:56 / 17:08:26 MST
Total possible sunshine........... 9 hr 5 min 30 sec (545 min 30 sec)
Altitude of sun at 12:35:41 MST... 23.47 degrees
Upper air data from rawinsonde observation taken on 12/05/2025 at 0500 MST
Freezing level.................. 6310 ft MSL (3449 ft AGL)
Convective condensation level... 7146 ft MSL (4285 ft AGL)
Lifted condensation level....... 5212 ft MSL (2351 ft AGL)
Lifted index.................... +11.5
K index......................... +19.4
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 -49.4 -56.9 325 92 47 1.0 0.5 76.6 169.9 44.7 M M
38000 -49.6 -57.3 325 90 46 -0.0 -0.0 67.4 153.3 39.9 M M
36000 -49.6 -57.3 335 120 62 5.9 3.2 58.5 137.4 35.0 M M
34000 -46.0 -50.8 335 112 58 1.2 0.6 54.1 129.4 32.9 M M
32000 -43.7 -46.7 340 142 73 5.1 2.8 49.0 120.3 30.2 M M
30000 -40.1 -40.2 340 141 73 7.6 4.2 45.9 114.6 28.6 M M
28000 -37.5 -35.5 335 117 60 3.1 1.7 41.6 107.0 26.2 M M
26000 -34.5 -30.1 330 85 44 6.2 3.4 37.8 100.1 23.9 M M
24000 -31.2 -24.2 330 85 44 7.1 3.9 34.6 94.2 21.9 M M
22000 -26.9 -16.4 330 75 39 7.2 4.0 32.7 90.9 20.9 M M
20000 -22.0 -7.6 330 66 34 6.0 3.3 31.6 88.8 20.4 M M
18000 -17.6 0.3 325 58 30 6.2 3.4 29.0 84.1 18.7 M M
16000 -13.9 7.0 315 54 28 6.6 3.6 26.6 79.8 16.9 M M
14000 -10.0 14.0 320 54 28 7.6 4.2 24.5 76.1 15.4 M M
12000 -6.6 20.1 315 39 20 4.6 2.5 21.9 71.3 13.2 M M
10000 -4.5 23.9 325 34 18 -0.7 -0.4 17.9 64.2 9.7 M M
9000 -3.5 25.7 320 27 14 3.3 1.8 15.8 60.4 7.9 M M
8000 -2.6 27.3 310 25 13 3.1 1.7 13.7 56.7 6.0 M M
7500 -2.0 28.4 310 24 12 5.5 3.0 12.9 55.2 5.2 M M
7000 -1.2 29.8 305 22 11 5.4 3.0 12.2 54.0 4.6 M M
6500 -0.4 31.3 300 21 11 5.4 3.0 11.5 52.8 3.9 M M
6000 0.4 32.7 310 18 9 5.4 3.0 10.9 51.5 3.2 M M
5500 1.2 34.2 310 18 9 5.3 2.9 10.2 50.3 2.6 M M
5000 2.0 35.6 310 17 9 3.6 2.0 9.5 49.1 1.9 M M
4750 1.9 35.4 320 15 8 -6.1 -3.3 8.7 47.7 1.1 M M
4500 1.3 34.3 335 12 6 -6.6 -3.6 7.3 45.2 -0.2 72 0.4
4250 1.1 34.0 335 9 5 -2.0 -1.1 6.3 43.4 -1.1 71 0.4
4000 0.9 33.6 310 6 3 -3.9 -2.1 5.4 41.6 -2.1 69 0.4
3750 0.7 33.3 295 4 2 -1.0 -0.5 4.4 39.9 -3.0 68 0.3
3500 0.9 33.6 295 3 2 4.7 2.6 3.8 38.8 -3.6 56 0.3
3400 1.3 34.3 295 2 1 6.7 3.6 3.5 38.3 -3.9 35 0.2
3300 1.3 34.3 295 2 1 6.7 3.6 3.5 38.3 -3.9 35 0.2
3200 1.8 35.2 295 1 1 5.4 3.0 3.2 37.8 -4.2 15 0.1
3100 1.8 35.2 295 1 1 5.4 3.0 3.2 37.8 -4.2 15 0.1
3000 1.8 35.2 295 1 1 5.4 3.0 3.2 37.8 -4.2 15 0.1
2900 2.2 36.0 000 0 0 8.5 4.7 3.0 37.4 -4.5 M M
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
12/05/2025 at 0800 MST | 12/05/2025 at 1100 MST
|
CAPE... +0.5 LI... +4.8 | CAPE... 0.0 LI... +5.2
CINH... 0.0 K Index... +20.0 | CINH... 0.0 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 -49.3 -56.7 325 75 38 4.5 2.5 | -49.5 -57.1 325 90 46 4.5 2.5
38000 -48.1 -54.6 330 89 46 -0.2 -0.1 | -48.7 -55.7 325 107 55 -1.5 -0.8
36000 -48.3 -54.9 330 116 60 -0.2 -0.1 | -49.6 -57.3 325 132 68 -1.5 -0.8
34000 -47.8 -54.0 335 141 72 5.2 2.8 | -49.5 -57.1 325 151 78 6.4 3.5
32000 -44.8 -48.6 335 138 71 5.0 2.7 | -45.5 -49.9 325 140 72 6.5 3.6
30000 -41.8 -43.2 335 133 68 6.0 3.3 | -41.7 -43.1 325 128 66 5.7 3.1
28000 -38.2 -36.8 335 111 57 6.0 3.3 | -38.3 -36.9 325 114 59 5.7 3.1
26000 -34.5 -30.1 330 95 49 6.4 3.5 | -34.5 -30.1 325 102 52 7.3 4.0
24000 -30.7 -23.3 330 86 44 6.4 3.5 | -30.1 -22.2 325 91 47 7.4 4.1
22000 -26.9 -16.4 330 76 39 6.4 3.5 | -26.2 -15.2 320 75 39 6.5 3.6
20000 -22.3 -8.1 325 67 35 7.1 3.9 | -21.4 -6.5 320 64 33 7.8 4.3
18000 -18.1 -0.6 325 61 32 7.3 4.0 | -16.9 1.6 320 58 30 6.9 3.8
16000 -13.8 7.2 320 56 29 6.7 3.7 | -13.0 8.6 320 50 26 6.7 3.7
14000 -10.1 13.8 320 51 26 5.9 3.2 | -9.1 15.6 315 43 22 6.1 3.3
12000 -7.3 18.9 320 41 21 5.0 2.8 | -6.4 20.5 310 36 18 4.0 2.2
10000 -4.4 24.1 315 32 16 4.5 2.5 | -4.0 24.8 305 29 15 4.4 2.4
9000 -3.3 26.1 315 27 14 3.5 1.9 | -2.8 27.0 300 24 13 3.6 2.0
8000 -2.3 27.9 320 23 12 3.6 2.0 | -1.8 28.8 295 20 10 3.7 2.0
7500 -1.6 29.1 320 20 10 2.5 1.4 | -1.0 30.2 285 17 9 3.4 1.9
7000 -1.1 30.0 320 18 9 4.4 2.4 | -0.4 31.3 285 15 8 4.6 2.5
6500 -0.4 31.3 320 16 8 4.4 2.4 | 0.1 32.2 280 14 7 3.8 2.1
6000 0.2 32.4 320 13 7 3.9 2.1 | 0.8 33.4 280 12 6 4.7 2.6
5500 0.8 33.4 320 11 6 3.7 2.0 | 1.6 34.9 285 10 5 4.9 2.7
5000 1.2 34.2 320 9 5 3.6 2.0 | 2.2 36.0 285 7 3 4.1 2.2
4750 1.5 34.7 320 9 5 4.1 2.2 | 2.5 36.5 290 6 3 3.7 2.0
4500 1.8 35.2 320 8 4 3.9 2.2 | 2.7 36.9 295 5 2 3.1 1.7
4250 2.0 35.6 320 6 3 2.6 1.5 | 3.0 37.4 305 3 2 3.0 1.6
4000 2.1 35.8 325 5 2 -0.0 -0.0 | 3.2 37.8 310 2 1 2.9 1.6
3750 2.2 36.0 330 4 2 2.2 1.2 | 3.4 38.1 335 1 1 4.1 2.2
3500 2.4 36.3 335 3 1 3.3 1.8 | 3.8 38.8 000 0 0 4.9 2.7
3400 2.4 36.3 335 3 1 3.3 1.8 | 3.8 38.8 000 0 0 4.9 2.7
3300 2.4 36.3 345 1 1 -3.8 -2.1 | 4.0 39.2 065 1 0 2.4 1.3
3200 2.4 36.3 345 1 1 -3.8 -2.1 | 4.0 39.2 065 1 0 2.4 1.3
3100 2.4 36.3 345 1 1 -3.8 -2.1 | 4.0 39.2 065 1 0 2.4 1.3
3000 2.2 36.0 000 0 0 3.8 2.1 | 4.3 39.7 075 1 1 6.8 3.7
2900 M M M M M M M | M M M M M M M
12/05/2025 at 1400 MST | 12/05/2025 at 1700 MST
|
CAPE... +0.5 LI... +3.2 | CAPE... 0.0 LI... +3.8
CINH... -0.1 K Index... +22.6 | CINH... 0.0 K Index... +23.1
|
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 -52.3 -62.1 320 106 55 2.0 1.1 | -57.5 -71.5 315 112 58 -1.3 -0.7
38000 -51.5 -60.7 320 120 62 0.6 0.4 | -56.5 -69.7 315 120 62 5.1 2.8
36000 -51.2 -60.2 320 131 67 0.6 0.4 | -53.0 -63.4 315 119 61 5.1 2.8
34000 -50.1 -58.2 320 138 71 7.1 3.9 | -49.6 -57.3 320 118 61 7.4 4.0
32000 -46.1 -51.0 320 131 68 6.7 3.7 | -45.2 -49.4 315 117 60 7.4 4.1
30000 -42.1 -43.8 320 122 63 6.6 3.6 | -40.8 -41.4 315 114 59 7.3 4.0
28000 -38.1 -36.6 315 105 54 6.7 3.7 | -36.4 -33.5 315 105 54 7.4 4.1
26000 -33.8 -28.8 310 92 48 7.8 4.3 | -32.1 -25.8 315 96 50 6.9 3.8
24000 -28.5 -19.3 305 84 43 7.4 4.0 | -28.0 -18.4 310 89 46 6.8 3.7
22000 -24.8 -12.6 305 72 37 6.3 3.5 | -23.1 -9.6 305 83 43 7.5 4.1
20000 -21.1 -6.0 310 61 32 6.1 3.3 | -19.2 -2.6 300 76 39 5.9 3.3
18000 -17.6 0.3 320 53 27 5.6 3.1 | -15.7 3.7 300 69 36 5.4 3.0
16000 -14.2 6.4 320 44 23 7.0 3.8 | -12.4 9.7 305 66 34 6.2 3.4
14000 -10.0 14.0 300 41 21 7.1 3.9 | -8.5 16.7 310 58 30 7.2 3.9
12000 -6.2 20.8 295 42 22 6.1 3.4 | -4.9 23.2 305 47 24 5.7 3.1
10000 -3.0 26.6 290 39 20 4.4 2.4 | -2.6 27.3 290 42 22 3.6 1.9
9000 -1.6 29.1 285 34 17 4.2 2.3 | -1.3 29.7 290 42 22 4.8 2.6
8000 -0.4 31.3 280 30 15 4.6 2.5 | 0.6 33.1 280 41 21 6.6 3.6
7500 0.2 32.4 275 28 14 3.3 1.8 | 1.4 34.5 280 39 20 4.2 2.3
7000 0.8 33.4 270 26 13 4.9 2.7 | 2.2 36.0 275 38 19 6.5 3.6
6500 1.5 34.7 270 25 13 4.7 2.6 | 3.0 37.4 275 37 19 5.1 2.8
6000 2.2 36.0 265 21 11 4.7 2.6 | 3.7 38.7 270 33 17 4.1 2.3
5500 2.8 37.0 260 19 10 3.4 1.8 | 4.4 39.9 265 30 15 4.9 2.7
5000 3.2 37.8 255 12 6 2.9 1.6 | 4.9 40.8 255 22 11 4.2 2.3
4750 3.4 38.1 245 9 5 2.5 1.4 | 5.3 41.5 250 19 10 4.5 2.5
4500 3.6 38.5 230 7 3 2.0 1.1 | 5.5 41.9 250 15 8 1.9 1.1
4250 3.7 38.7 210 4 2 2.0 1.1 | 5.6 42.1 235 11 5 0.7 0.4
4000 3.9 39.0 175 4 2 1.5 0.9 | 5.6 42.1 210 7 4 -1.1 -0.6
3750 4.1 39.4 145 4 2 3.8 2.1 | 5.5 41.9 190 6 3 -0.7 -0.4
3500 4.5 40.1 140 4 2 6.2 3.4 | 5.6 42.1 175 5 3 3.6 2.0
3400 4.5 40.1 140 4 2 6.2 3.4 | 5.6 42.1 175 5 3 3.6 2.0
3300 4.8 40.6 140 4 2 3.0 1.7 | 5.8 42.4 155 5 2 -0.9 -0.5
3200 4.8 40.6 140 4 2 3.0 1.7 | 5.8 42.4 155 5 2 -0.9 -0.5
3100 4.8 40.6 140 4 2 3.0 1.7 | 5.8 42.4 155 5 2 -0.9 -0.5
3000 5.0 41.0 130 4 2 5.5 3.0 | 5.2 41.4 140 6 3 -20.5 -11.2
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