Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
502
UXUS97 KBOI 091305
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
605 AM MST Tuesday, December 9, 2025
This forecast is for Tuesday, December 9, 2025:
If the trigger temperature of 62.5 F/17.0 C is reached...then
Thermal Soaring Index....................... Poor
Maximum rate of lift........................ 0 ft/min (0.0 m/s)
Maximum height of thermals.................. 3032 ft MSL (171 ft AGL)
Forecast maximum temperature................... 53.0 F/12.1 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................. 2884 ft MSL (23 ft AGL)
Thermal soaring outlook for Wednesday 12/10.... Poor
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 08:06:42 / 17:08:09 MST
Total possible sunshine........... 9 hr 1 min 26 sec (541 min 26 sec)
Altitude of sun at 12:37:25 MST... 22.99 degrees
Upper air data from rawinsonde observation taken on 12/09/2025 at 0500 MST
Freezing level.................. 9980 ft MSL (7119 ft AGL)
Convective condensation level... 11144 ft MSL (8283 ft AGL)
Lifted condensation level....... 6834 ft MSL (3973 ft AGL)
Lifted index.................... +13.0
K index......................... +20.7
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 -64.4 -83.9 295 85 44 8.7 4.7 51.2 124.2 25.5 M M
38000 -59.1 -74.4 300 87 45 8.4 4.6 50.4 122.7 25.6 M M
36000 -54.1 -65.4 300 87 45 8.4 4.6 49.2 120.6 25.5 M M
34000 -48.9 -56.0 300 84 43 9.0 4.9 48.2 118.7 25.5 M M
32000 -43.9 -47.0 305 81 42 7.3 4.0 47.0 116.6 25.3 M M
30000 -39.1 -38.4 295 75 39 8.7 4.8 45.7 114.2 24.9 M M
28000 -33.0 -27.4 295 74 38 9.6 5.2 45.1 113.2 25.2 M M
26000 -28.1 -18.6 295 73 37 8.1 4.5 43.9 111.1 24.8 M M
24000 -23.6 -10.5 295 71 37 7.2 4.0 42.2 108.0 24.0 M M
22000 -19.4 -2.9 290 72 37 7.2 4.0 40.4 104.7 23.0 M M
20000 -15.2 4.6 295 68 35 7.1 3.9 38.5 101.3 21.9 M M
18000 -11.6 11.1 290 65 33 5.4 2.9 36.0 96.7 20.1 M M
16000 -8.5 16.7 290 61 32 5.5 3.0 32.9 91.3 17.9 M M
14000 -4.5 23.9 290 60 31 2.6 1.4 30.1 86.3 15.7 M M
12000 -3.6 25.5 290 51 26 4.5 2.5 24.6 76.4 11.0 M M
10000 0.0 32.0 285 44 23 2.5 1.4 22.3 72.2 9.1 M M
9000 0.1 32.2 275 44 23 0.9 0.5 19.1 66.3 6.4 M M
8000 2.3 36.1 270 40 21 8.5 4.6 18.6 65.4 5.7 M M
7500 3.5 38.3 265 37 19 7.5 4.1 18.3 64.9 5.5 M M
7000 4.6 40.3 265 32 17 7.6 4.2 18.0 64.3 5.2 M M
6500 5.7 42.3 265 30 15 7.7 4.2 17.6 63.7 4.9 M M
6000 6.9 44.4 265 27 14 8.9 4.9 17.3 63.1 4.6 M M
5500 7.5 45.5 270 19 10 2.4 1.3 16.4 61.5 3.7 M M
5000 8.4 47.1 275 12 6 6.8 3.7 15.9 60.6 3.3 M M
4750 9.0 48.2 265 10 5 8.5 4.6 15.8 60.4 3.1 M M
4500 9.7 49.5 255 8 4 8.5 4.7 15.7 60.2 3.1 M M
4250 10.3 50.5 245 6 3 8.7 4.8 15.6 60.0 3.0 M M
4000 10.9 51.6 220 4 2 7.8 4.3 15.5 59.9 2.9 M M
3750 11.4 52.5 205 3 2 6.0 3.3 15.2 59.4 2.7 M M
3500 11.8 53.2 170 3 1 4.7 2.6 14.9 58.8 2.3 M M
3400 12.2 54.0 135 4 2 7.3 4.0 14.6 58.2 2.0 M M
3300 12.2 54.0 135 4 2 7.3 4.0 14.6 58.2 2.0 M M
3200 12.5 54.5 120 5 3 -8.7 -4.8 14.1 57.4 1.5 M M
3100 12.5 54.5 120 5 3 -8.7 -4.8 14.1 57.4 1.5 M M
3000 12.5 54.5 120 5 3 -8.7 -4.8 14.1 57.4 1.5 M M
2900 8.2 46.8 110 7 4 -99.0 -54.3 9.2 48.6 -3.5 M M
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
12/09/2025 at 0800 MST | 12/09/2025 at 1100 MST
|
CAPE... 0.0 LI... +4.4 | CAPE... 0.0 LI... +5.1
CINH... -0.2 K Index... +23.3 | CINH... 0.0 K Index... +22.3
|
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 -63.1 -81.6 285 86 44 3.7 2.0 | -63.6 -82.5 285 86 44 3.3 1.8
38000 -58.8 -73.8 290 87 45 8.3 4.5 | -59.3 -74.7 285 86 45 8.7 4.8
36000 -53.8 -64.8 295 88 46 8.3 4.5 | -54.0 -65.2 290 87 45 8.7 4.8
34000 -49.0 -56.2 300 89 46 7.6 4.2 | -49.0 -56.2 290 86 44 7.9 4.3
32000 -44.4 -47.9 300 86 44 7.6 4.2 | -44.3 -47.7 290 83 43 7.9 4.3
30000 -39.8 -39.6 300 82 42 7.8 4.3 | -39.5 -39.1 295 81 42 8.0 4.4
28000 -35.1 -31.2 295 77 40 7.9 4.3 | -34.7 -30.5 290 80 41 8.0 4.4
26000 -30.3 -22.5 295 75 39 8.1 4.5 | -29.4 -20.9 290 80 41 7.9 4.3
24000 -24.9 -12.8 295 73 38 7.5 4.1 | -24.7 -12.5 290 78 40 6.8 3.7
22000 -20.4 -4.7 295 71 37 7.6 4.2 | -20.6 -5.1 295 73 37 7.0 3.8
20000 -16.4 2.5 295 66 34 6.5 3.6 | -16.6 2.1 295 70 36 6.8 3.7
18000 -12.6 9.3 290 61 31 6.5 3.6 | -12.6 9.3 290 67 35 6.8 3.7
16000 -9.0 15.8 285 58 30 5.3 2.9 | -8.9 16.0 290 65 34 6.0 3.3
14000 -6.1 21.0 290 55 29 4.5 2.5 | -5.6 21.9 285 62 32 4.3 2.4
12000 -3.7 25.3 290 48 25 4.3 2.4 | -3.5 25.7 285 54 28 3.7 2.0
10000 -0.8 30.6 290 41 21 4.6 2.5 | -1.4 29.5 290 42 22 3.6 2.0
9000 0.4 32.7 295 38 20 5.2 2.8 | 0.2 32.4 295 36 19 6.0 3.3
8000 2.4 36.3 295 34 18 5.2 2.8 | 2.0 35.6 300 34 18 7.6 4.1
7500 3.0 37.4 290 34 17 3.7 2.0 | 2.7 36.9 300 33 17 3.4 1.8
7000 3.6 38.5 290 34 17 4.0 2.2 | 3.4 38.1 300 29 15 4.6 2.5
6500 4.3 39.7 290 35 18 5.3 2.9 | 4.0 39.2 300 24 12 3.7 2.0
6000 5.2 41.4 285 35 18 5.8 3.2 | 4.6 40.3 295 24 13 4.3 2.3
5500 6.1 43.0 280 35 18 6.4 3.5 | 5.4 41.7 290 24 12 4.9 2.7
5000 7.1 44.8 275 28 14 6.6 3.6 | 6.0 42.8 285 22 12 5.4 3.0
4750 7.6 45.7 275 26 14 6.2 3.4 | 6.5 43.7 280 23 12 6.0 3.3
4500 8.0 46.4 275 22 12 4.1 2.2 | 6.9 44.4 280 21 11 4.5 2.5
4250 8.2 46.8 275 16 8 4.3 2.3 | 7.2 45.0 280 16 8 4.4 2.4
4000 8.6 47.5 280 13 7 4.7 2.6 | 7.5 45.5 280 15 8 4.0 2.2
3750 8.9 48.0 285 11 5 6.3 3.5 | 7.9 46.2 280 13 7 6.0 3.3
3500 9.3 48.7 280 7 3 0.6 0.3 | 8.3 46.9 275 9 5 4.6 2.5
3400 9.3 48.7 280 7 3 0.6 0.3 | 8.3 46.9 275 9 5 4.6 2.5
3300 8.8 47.8 295 4 2 -15.3 -8.4 | 8.3 46.9 280 7 3 -4.1 -2.2
3200 8.8 47.8 295 4 2 -15.3 -8.4 | 8.3 46.9 280 7 3 -4.1 -2.2
3100 8.8 47.8 295 4 2 -15.3 -8.4 | 8.3 46.9 280 7 3 -4.1 -2.2
3000 8.1 46.6 355 2 1 9.9 5.4 | 8.3 46.9 280 4 2 12.3 6.8
2900 M M M M M M M | M M M M M M M
12/09/2025 at 1400 MST | 12/09/2025 at 1700 MST
|
CAPE... 0.0 LI... +5.3 | CAPE... 0.0 LI... +5.0
CINH... -0.4 K Index... +21.7 | CINH... -0.1 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 -63.4 -82.1 290 91 47 1.9 1.1 | -63.7 -82.7 285 87 45 2.1 1.2
38000 -59.3 -74.7 285 93 48 8.7 4.8 | -59.6 -75.3 285 87 45 8.4 4.6
36000 -54.1 -65.4 290 92 47 8.7 4.8 | -54.6 -66.3 290 85 44 8.4 4.6
34000 -49.0 -56.2 290 91 47 8.2 4.5 | -49.4 -56.9 295 84 43 8.8 4.8
32000 -44.0 -47.2 290 88 45 8.2 4.5 | -44.2 -47.6 295 82 42 8.8 4.8
30000 -39.2 -38.6 285 85 44 7.9 4.3 | -39.0 -38.2 300 80 41 8.2 4.5
28000 -34.5 -30.1 290 84 43 7.9 4.3 | -34.1 -29.4 300 80 41 8.2 4.5
26000 -29.2 -20.6 290 82 42 7.8 4.3 | -28.9 -20.0 300 78 40 7.6 4.2
24000 -24.7 -12.5 290 79 41 7.1 3.9 | -24.4 -11.9 300 76 39 7.2 4.0
22000 -20.4 -4.7 295 73 37 7.2 3.9 | -20.1 -4.2 295 73 37 7.3 4.0
20000 -16.6 2.1 295 69 36 6.3 3.4 | -16.1 3.0 295 68 35 6.6 3.6
18000 -12.9 8.8 295 67 35 6.3 3.5 | -12.3 9.9 295 64 33 6.2 3.4
16000 -9.3 15.3 295 67 34 5.8 3.2 | -9.0 15.8 295 59 30 4.7 2.6
14000 -6.2 20.8 295 62 32 5.0 2.7 | -6.1 21.0 300 58 30 4.6 2.5
12000 -3.6 25.5 290 56 29 4.5 2.5 | -3.5 25.7 300 55 28 4.7 2.6
10000 -1.1 30.0 290 44 23 3.4 1.9 | -0.9 30.4 295 43 22 4.0 2.2
9000 0.1 32.2 290 32 17 4.0 2.2 | 0.6 33.1 290 34 18 5.8 3.2
8000 1.4 34.5 290 25 13 5.5 3.0 | 2.2 36.0 290 32 17 5.2 2.9
7500 2.2 36.0 290 24 13 4.2 2.3 | 2.7 36.9 285 31 16 3.0 1.7
7000 2.7 36.9 290 24 12 3.2 1.7 | 3.3 37.9 285 31 16 4.0 2.2
6500 3.4 38.1 285 22 12 5.8 3.2 | 4.0 39.2 280 32 16 5.8 3.2
6000 4.1 39.4 285 21 11 5.1 2.8 | 4.9 40.8 280 27 14 5.8 3.2
5500 4.8 40.6 280 21 11 4.9 2.7 | 5.7 42.3 280 24 12 5.4 3.0
5000 5.6 42.1 280 19 10 5.1 2.8 | 6.5 43.7 280 18 9 6.6 3.6
4750 6.0 42.8 280 18 9 5.1 2.8 | 7.0 44.6 280 16 8 6.8 3.7
4500 6.4 43.5 280 16 8 6.0 3.3 | 7.5 45.5 280 12 6 4.7 2.6
4250 6.8 44.2 280 12 6 4.8 2.7 | 7.7 45.9 280 7 4 3.0 1.6
4000 7.0 44.6 280 10 5 2.3 1.2 | 7.9 46.2 290 5 2 1.7 0.9
3750 7.3 45.1 285 8 4 6.5 3.6 | 8.1 46.6 315 2 1 3.7 2.0
3500 7.9 46.2 285 6 3 7.3 4.0 | 8.3 46.9 045 2 1 1.6 0.9
3400 7.9 46.2 285 6 3 7.3 4.0 | 8.3 46.9 045 2 1 1.6 0.9
3300 8.1 46.6 290 4 2 -2.3 -1.2 | 8.1 46.6 075 2 1 -7.2 -4.0
3200 8.1 46.6 290 4 2 -2.3 -1.2 | 8.1 46.6 075 2 1 -7.2 -4.0
3100 8.1 46.6 290 4 2 -2.3 -1.2 | 8.1 46.6 075 2 1 -7.2 -4.0
3000 8.3 46.9 295 3 1 17.6 9.7 | 7.9 46.2 085 3 2 8.8 4.8
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