Soaring Guidance
Issued by NWS Boise, ID
Issued by NWS Boise, ID
874
UXUS97 KBOI 081305
SRGBOI
Soaring Forecast
National Weather Service Boise, Idaho
605 AM MST Monday, December 8, 2025
This forecast is for Monday, December 8, 2025:
If the trigger temperature of 54.0 F/12.2 C is reached...then
Thermal Soaring Index....................... Poor
Maximum rate of lift........................ 0 ft/min (0.0 m/s)
Maximum height of thermals.................. 5967 ft MSL (3103 ft AGL)
Forecast maximum temperature................... 52.0 F/11.6 C
Time of trigger temperature.................... None
Time of overdevelopment........................ 1600 MST
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................. 3373 ft MSL (509 ft AGL)
Thermal soaring outlook for Tuesday 12/09...... Poor
Wave Soaring Index............................. Not available
Remarks...
Sunrise/Sunset.................... 08:05:48 / 17:08:09 MST
Total possible sunshine........... 9 hr 2 min 21 sec (542 min 21 sec)
Altitude of sun at 12:36:59 MST... 23.10 degrees
Upper air data from rawinsonde observation taken on 12/08/2025 at 0500 MST
Freezing level.................. 6977 ft MSL (4113 ft AGL)
Convective condensation level... 8438 ft MSL (5574 ft AGL)
Lifted condensation level....... 7599 ft MSL (4735 ft AGL)
Lifted index.................... +11.8
K index......................... -18.5
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 -61.5 -78.7 325 45 23 7.2 4.0 58.4 137.2 30.2 M M
38000 -59.1 -74.4 320 67 34 2.4 1.3 53.2 127.8 27.6 M M
36000 -59.8 -75.6 320 58 30 5.5 3.0 43.3 109.9 21.7 M M
34000 -54.8 -66.6 325 64 33 9.6 5.2 42.1 107.8 21.5 M M
32000 -49.4 -56.9 320 64 33 8.9 4.9 41.5 106.8 21.6 M M
30000 -43.3 -45.9 320 61 31 9.0 4.9 40.9 105.6 21.8 M M
28000 -38.0 -36.4 320 57 29 7.8 4.3 40.2 104.3 21.8 M M
26000 -32.9 -27.2 315 53 27 7.2 4.0 39.1 102.5 21.5 M M
24000 -27.7 -17.9 310 45 23 9.3 5.1 38.5 101.2 21.5 M M
22000 -23.1 -9.6 305 47 24 4.8 2.6 36.8 98.3 20.7 M M
20000 -19.2 -2.6 295 52 27 6.2 3.4 34.5 94.1 19.2 M M
18000 -16.4 2.5 295 48 25 4.2 2.3 30.8 87.5 16.5 M M
16000 -11.5 11.3 300 43 22 8.0 4.4 29.0 84.1 15.3 M M
14000 -8.0 17.6 305 43 22 9.0 4.9 26.2 79.1 13.3 M M
12000 -7.0 19.4 290 37 19 6.1 3.3 20.8 69.4 8.7 M M
10000 -6.6 20.1 285 36 19 -0.9 -0.5 15.1 59.2 3.4 M M
9000 -4.8 23.4 295 24 12 10.3 5.6 14.0 57.2 2.3 M M
8000 -2.5 27.5 305 23 12 6.6 3.6 13.4 56.1 1.7 M M
7500 -1.5 29.3 310 23 12 9.0 5.0 13.1 55.6 1.3 M M
7000 -0.2 31.6 315 23 12 8.9 4.9 13.0 55.3 1.2 M M
6500 0.8 33.4 310 23 12 5.3 2.9 12.5 54.5 0.7 M M
6000 1.7 35.1 300 25 13 5.7 3.1 11.9 53.4 0.1 M M
5500 2.5 36.5 300 22 12 5.2 2.9 11.3 52.3 -0.5 100 0.5
5000 3.3 37.9 295 16 8 1.5 0.8 10.6 51.1 -1.2 62 0.3
4750 3.2 37.8 300 10 5 3.5 1.9 9.9 49.7 -2.0 56 0.3
4500 3.9 39.0 305 9 5 10.1 5.5 9.8 49.6 -2.1 29 0.1
4250 4.5 40.1 320 8 4 8.2 4.5 9.7 49.4 -2.2 2 0.0
4000 5.2 41.4 340 7 4 9.3 5.1 9.6 49.3 -2.2 M M
3750 5.8 42.4 350 6 3 6.5 3.6 9.5 49.2 -2.3 M M
3500 6.3 43.3 360 4 2 9.2 5.0 9.3 48.7 -2.6 M M
3400 6.6 43.9 010 3 1 -11.0 -6.1 8.9 48.0 -3.0 M M
3300 6.6 43.9 010 3 1 -11.0 -6.1 8.9 48.0 -3.0 M M
3200 4.0 39.2 050 2 1 -56.8 -31.2 5.5 41.9 -6.4 M M
3100 4.0 39.2 050 2 1 -56.8 -31.2 5.5 41.9 -6.4 M M
3000 4.0 39.2 050 2 1 -56.8 -31.2 5.5 41.9 -6.4 M M
2900 1.6 34.9 105 2 1 34.3 18.8 2.3 36.2 -9.5 46 0.2
* * * * * * Numerical weather prediction model forecast data valid * * * * * *
12/08/2025 at 0800 MST | 12/08/2025 at 1100 MST
|
CAPE... 0.0 LI... +8.0 | CAPE... 0.0 LI... +8.2
CINH... -0.0 K Index... +15.2 | CINH... 0.0 K Index... +11.0
|
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 -64.1 -83.4 320 64 33 -0.2 -0.1 | -63.4 -82.1 320 73 38 -0.1 -0.0
38000 -61.8 -79.2 325 67 35 6.7 3.7 | -61.3 -78.3 325 76 39 6.4 3.5
36000 -57.8 -72.0 320 68 35 6.7 3.7 | -57.0 -70.6 325 74 38 6.4 3.5
34000 -53.5 -64.3 320 67 35 8.5 4.6 | -52.6 -62.7 325 71 37 8.9 4.9
32000 -48.4 -55.1 320 64 33 8.5 4.7 | -47.3 -53.1 320 66 34 8.9 4.9
30000 -43.3 -45.9 315 61 31 8.2 4.5 | -42.0 -43.6 315 61 31 8.8 4.8
28000 -38.4 -37.1 315 58 30 8.2 4.5 | -36.7 -34.1 315 58 30 8.8 4.8
26000 -33.4 -28.1 310 55 28 8.4 4.6 | -31.9 -25.4 305 55 28 7.7 4.2
24000 -27.8 -18.0 305 53 27 7.4 4.1 | -27.3 -17.1 300 54 28 7.4 4.1
22000 -23.5 -10.3 300 53 27 7.4 4.0 | -22.5 -8.5 300 54 28 7.2 3.9
20000 -19.6 -3.3 295 52 27 6.2 3.4 | -18.7 -1.7 300 53 27 6.2 3.4
18000 -16.1 3.0 295 49 25 5.2 2.9 | -15.3 4.5 295 51 26 5.1 2.8
16000 -13.5 7.7 295 46 24 4.4 2.4 | -12.6 9.3 295 48 25 4.3 2.4
14000 -10.5 13.1 290 42 22 6.1 3.4 | -10.1 13.8 285 44 23 5.9 3.3
12000 -7.0 19.4 290 38 19 5.5 3.0 | -6.4 20.5 280 39 20 5.7 3.1
10000 -4.0 24.8 300 31 16 3.0 1.6 | -3.6 25.5 280 29 15 3.6 2.0
9000 -3.0 26.6 300 25 13 4.1 2.3 | -2.7 27.1 280 23 12 3.1 1.7
8000 -1.6 29.1 295 20 10 5.0 2.7 | -1.2 29.8 275 17 9 4.9 2.7
7500 -0.7 30.7 295 19 10 7.2 3.9 | -0.2 31.6 275 15 8 7.7 4.2
7000 0.1 32.2 290 18 10 6.1 3.4 | 0.6 33.1 270 14 7 5.8 3.2
6500 1.1 34.0 290 18 9 7.4 4.1 | 1.6 34.9 270 13 7 6.8 3.7
6000 2.2 36.0 285 17 9 7.1 3.9 | 2.6 36.7 265 12 6 6.2 3.4
5500 3.2 37.8 285 15 8 6.7 3.7 | 3.4 38.1 260 11 5 5.0 2.8
5000 4.0 39.2 285 9 5 3.1 1.7 | 4.0 39.2 245 7 3 4.3 2.3
4750 4.2 39.6 280 7 3 2.8 1.6 | 4.3 39.7 230 5 3 3.6 1.9
4500 4.4 39.9 275 4 2 1.1 0.6 | 4.5 40.1 205 5 2 2.3 1.3
4250 4.4 39.9 240 2 1 -0.1 -0.1 | 4.7 40.5 180 5 2 2.8 1.5
4000 4.4 39.9 170 2 1 0.4 0.2 | 4.9 40.8 165 5 3 2.6 1.4
3750 4.4 39.9 140 4 2 -0.7 -0.4 | 5.2 41.4 150 6 3 4.8 2.6
3500 4.0 39.2 120 4 2 -11.7 -6.4 | 5.6 42.1 150 5 2 6.1 3.4
3400 4.0 39.2 120 4 2 -11.7 -6.4 | 5.6 42.1 150 5 2 6.1 3.4
3300 2.6 36.7 115 4 2 -26.5 -14.5 | 5.9 42.6 140 5 3 1.4 0.8
3200 2.6 36.7 115 4 2 -26.5 -14.5 | 5.9 42.6 140 5 3 1.4 0.8
3100 2.6 36.7 115 4 2 -26.5 -14.5 | 5.9 42.6 140 5 3 1.4 0.8
3000 1.2 34.2 115 5 2 -1.0 -0.5 | 6.2 43.2 135 5 3 11.9 6.5
2900 M M M M M M M | M M M M M M M
12/08/2025 at 1400 MST | 12/08/2025 at 1700 MST
|
CAPE... 0.0 LI... +8.2 | CAPE... 0.0 LI... +7.4
CINH... 0.0 K Index... +9.7 | CINH... -0.0 K Index... +13.7
|
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 -64.6 -84.3 325 94 48 1.4 0.8 | -64.9 -84.8 320 84 43 1.8 1.0
38000 -61.4 -78.5 325 94 48 8.0 4.4 | -61.1 -78.0 320 83 43 9.0 4.9
36000 -56.6 -69.9 325 82 42 8.0 4.4 | -55.1 -67.2 315 75 38 9.0 4.9
34000 -51.0 -59.8 320 70 36 8.9 4.9 | -49.7 -57.5 315 69 35 8.8 4.8
32000 -45.7 -50.3 315 62 32 8.9 4.9 | -44.5 -48.1 310 65 33 8.8 4.8
30000 -40.6 -41.1 315 58 30 8.0 4.4 | -39.4 -38.9 310 62 32 7.9 4.3
28000 -35.8 -32.4 310 60 31 8.0 4.4 | -34.7 -30.5 305 63 33 7.9 4.3
26000 -31.2 -24.2 305 58 30 7.6 4.2 | -30.2 -22.4 305 61 31 7.5 4.1
24000 -26.7 -16.1 305 54 28 7.5 4.1 | -25.7 -14.3 300 57 29 7.2 4.0
22000 -22.2 -8.0 300 50 26 7.5 4.1 | -21.0 -5.8 295 55 28 7.1 3.9
20000 -17.9 -0.2 300 50 26 6.0 3.3 | -17.1 1.2 295 53 27 6.3 3.5
18000 -14.7 5.5 295 53 27 4.7 2.6 | -13.7 7.3 295 51 26 5.3 2.9
16000 -11.3 11.7 290 54 28 6.6 3.6 | -10.9 12.4 295 47 24 4.5 2.4
14000 -8.0 17.6 285 47 24 4.2 2.3 | -7.9 17.8 290 40 21 4.4 2.4
12000 -5.7 21.7 275 40 20 4.0 2.2 | -5.4 22.3 290 38 19 4.5 2.5
10000 -3.4 25.9 275 33 17 4.3 2.4 | -2.9 26.8 285 32 16 4.5 2.5
9000 -2.1 28.2 270 28 14 4.5 2.5 | -1.6 29.1 280 28 14 5.3 2.9
8000 -0.2 31.6 265 22 11 5.7 3.1 | 0.4 32.7 270 24 12 5.5 3.0
7500 0.7 33.3 260 20 10 6.3 3.5 | 1.5 34.7 265 23 12 7.2 4.0
7000 1.4 34.5 255 18 9 5.4 2.9 | 2.3 36.1 260 22 11 5.8 3.2
6500 2.3 36.1 250 16 8 6.5 3.6 | 3.4 38.1 255 20 10 8.5 4.7
6000 3.2 37.8 240 13 7 6.3 3.4 | 4.6 40.3 245 18 9 8.2 4.5
5500 4.1 39.4 235 10 5 6.1 3.3 | 5.7 42.3 235 14 7 6.0 3.3
5000 5.0 41.0 205 7 4 5.7 3.1 | 6.5 43.7 210 11 5 6.3 3.5
4750 5.4 41.7 180 7 3 5.4 3.0 | 7.0 44.6 195 10 5 5.5 3.0
4500 5.9 42.6 170 7 3 6.1 3.3 | 7.3 45.1 175 9 5 3.3 1.8
4250 6.3 43.3 165 7 4 7.7 4.2 | 7.5 45.5 165 9 4 3.6 2.0
4000 6.9 44.4 160 7 4 8.3 4.5 | 7.8 46.0 150 9 4 4.2 2.3
3750 7.5 45.5 150 7 4 7.6 4.2 | 8.1 46.6 140 9 5 4.5 2.5
3500 8.1 46.6 155 6 3 7.9 4.4 | 8.3 46.9 135 7 4 -1.5 -0.8
3400 8.1 46.6 155 6 3 7.9 4.4 | 8.3 46.9 135 7 4 -1.5 -0.8
3300 8.7 47.7 150 6 3 9.8 5.4 | 7.7 45.9 130 6 3 -12.9 -7.1
3200 8.7 47.7 150 6 3 9.8 5.4 | 7.7 45.9 130 6 3 -12.9 -7.1
3100 8.7 47.7 150 6 3 9.8 5.4 | 7.7 45.9 130 6 3 -12.9 -7.1
3000 9.3 48.7 150 6 3 6.2 3.4 | 7.2 45.0 120 5 3 7.8 4.3
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