567
UXUS97 KBOI 131305
SRGBOI
SOARING FORECAST
NATIONAL WEATHER SERVICE BOISE, IDAHO
705 AM MDT THURSDAY, AUGUST 13, 2026
THIS FORECAST IS FOR THURSDAY, AUGUST 13, 2026:
IF THE TRIGGER TEMPERATURE OF 86.6 F/30.3 C IS REACHED...THEN
THERMAL SOARING INDEX....................... FAIR
MAXIMUM RATE OF LIFT........................ 353 FT/MIN (1.8 M/S)
MAXIMUM HEIGHT OF THERMALS.................. 6410 FT MSL (3443 FT AGL)
FORECAST MAXIMUM TEMPERATURE................... 86.0 F/30.5 C
TIME OF TRIGGER TEMPERATURE.................... 1415 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................. 4855 FT MSL (1888 FT AGL)
THERMAL SOARING OUTLOOK FOR FRIDAY 08/14....... FAIR
WAVE SOARING INDEX............................. NOT AVAILABLE
REMARKS...
SUNRISE/SUNSET.................... 06:47:53 / 20:51:27 MDT
TOTAL POSSIBLE SUNSHINE........... 14 HR 3 MIN 34 SEC (843 MIN 34 SEC)
ALTITUDE OF SUN AT 13:49:40 MDT... 59.04 DEGREES
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 08/13/2026 AT 0600 MDT
FREEZING LEVEL.................. 14109 FT MSL (11142 FT AGL)
CONVECTIVE CONDENSATION LEVEL... 15255 FT MSL (12288 FT AGL)
LIFTED CONDENSATION LEVEL....... 13922 FT MSL (10955 FT AGL)
LIFTED INDEX.................... +0.6
K INDEX......................... +27.1
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 -53.6 -64.5 230 55 28 4.1 2.3 M M M M M
38000 -50.6 -59.1 225 58 30 5.0 2.7 M M M M M
36000 -47.7 -53.9 225 61 32 5.0 2.7 M M M M M
34000 -43.5 -46.3 225 60 31 8.1 4.4 M M M M M
32000 -38.6 -37.5 225 55 29 8.0 4.4 M M M M M
30000 -34.0 -29.2 230 50 26 7.6 4.2 49.1 120.4 14.1 M M
28000 -29.4 -20.9 230 43 22 7.6 4.2 47.5 117.4 13.2 M M
26000 -24.7 -12.5 230 36 18 6.8 3.7 45.0 112.9 11.6 M M
24000 -20.7 -5.3 225 30 15 6.5 3.6 42.7 108.9 10.1 M M
22000 -16.8 1.8 235 25 13 6.6 3.6 40.3 104.6 8.3 M M
20000 -13.4 7.9 235 22 12 5.7 3.1 37.4 99.3 6.0 M M
18000 -9.9 14.2 235 21 11 6.6 3.6 34.9 94.9 3.8 M M
16000 -5.1 22.8 225 18 10 8.9 4.9 33.9 93.1 2.8 M M
14000 0.2 32.4 220 17 9 9.3 5.1 33.5 92.3 2.3 M M
12000 5.6 42.1 215 16 8 9.1 5.0 33.2 91.8 2.0 M M
10000 10.9 51.6 205 12 6 8.1 4.5 32.6 90.6 1.5 M M
9000 14.0 57.2 195 8 4 8.4 4.6 31.9 89.4 0.9 M M
8000 16.6 61.9 200 5 3 9.3 5.1 31.6 88.9 0.7 M M
7500 17.9 64.2 205 4 2 8.3 4.6 31.4 88.5 0.5 M M
7000 19.2 66.6 220 4 2 8.7 4.8 31.2 88.2 0.3 M M
6500 20.3 68.5 235 4 2 6.2 3.4 31.0 87.7 0.0 M M
6000 21.1 70.0 260 4 2 5.8 3.2 30.3 86.5 -0.7 115 0.6
5500 21.7 71.1 285 4 2 2.1 1.2 29.4 85.0 -1.5 82 0.4
5000 22.0 71.6 300 4 2 1.6 0.9 28.2 82.8 -2.8 60 0.3
4750 22.0 71.6 300 3 2 -2.5 -1.3 27.5 81.5 -3.5 53 0.3
4500 21.6 70.9 305 3 2 -5.3 -2.9 26.4 79.5 -4.6 57 0.3
4250 21.2 70.2 320 3 1 -4.2 -2.3 25.3 77.6 -5.7 60 0.3
4000 20.8 69.4 340 3 1 -6.0 -3.3 24.2 75.6 -6.8 64 0.3
3750 20.2 68.4 310 2 1 -9.2 -5.1 22.9 73.2 -8.2 75 0.4
3500 19.5 67.1 315 1 0 -10.4 -5.7 21.6 70.9 -9.5 89 0.5
3400 19.5 67.1 315 1 0 -10.4 -5.7 21.6 70.9 -9.5 89 0.5
3300 18.8 65.8 000 0 0 -10.3 -5.6 20.3 68.6 -10.7 104 0.5
3200 18.8 65.8 000 0 0 -10.3 -5.6 20.3 68.6 -10.7 104 0.5
3100 18.8 65.8 000 0 0 -10.3 -5.6 20.3 68.6 -10.7 104 0.5
3000 18.0 64.4 100 2 1 -10.8 -5.9 19.0 66.3 -12.0 119 0.6
2900 M M M M M M M M M M M M
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *
08/13/2026 AT 0900 MDT | 08/13/2026 AT 1200 MDT
|
CAPE... 0.0 LI... -1.2 | CAPE... +16.3 LI... -1.3
CINH... -0.0 K INDEX... +26.0 | CINH... -87.2 K INDEX... +26.4
|
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 -52.6 -62.7 220 46 23 3.4 1.9 | -51.7 -61.1 215 43 22 2.8 1.6
38000 -50.4 -58.7 220 45 23 3.8 2.1 | -49.9 -57.8 210 40 21 2.9 1.6
36000 -48.1 -54.6 215 45 23 3.8 2.1 | -48.2 -54.8 205 39 20 2.9 1.6
34000 -44.0 -47.2 215 45 23 8.4 4.6 | -44.5 -48.1 205 38 20 8.0 4.4
32000 -38.9 -38.0 220 46 23 8.4 4.6 | -39.7 -39.5 210 40 20 8.0 4.4
30000 -34.1 -29.4 220 42 22 7.8 4.3 | -34.8 -30.6 210 37 19 8.4 4.6
28000 -29.5 -21.1 225 37 19 7.8 4.3 | -29.8 -21.6 210 32 17 8.4 4.6
26000 -25.4 -13.7 220 32 17 6.7 3.7 | -25.1 -13.2 210 31 16 7.6 4.2
24000 -20.9 -5.6 215 28 15 6.7 3.7 | -20.3 -4.5 210 28 15 5.8 3.2
22000 -16.9 1.6 220 24 13 6.8 3.7 | -16.9 1.6 215 23 12 5.8 3.2
20000 -13.4 7.9 225 22 11 5.7 3.1 | -13.7 7.3 225 19 10 5.4 3.0
18000 -9.9 14.2 230 20 10 6.4 3.5 | -10.2 13.6 230 17 9 6.6 3.6
16000 -5.1 22.8 220 18 9 9.3 5.1 | -5.3 22.5 230 15 8 9.1 5.0
14000 0.2 32.4 225 15 8 9.0 4.9 | -0.2 31.6 230 11 6 7.8 4.3
12000 5.4 41.7 220 12 6 8.6 4.7 | 4.5 40.1 240 6 3 8.3 4.6
10000 10.3 50.5 220 8 4 8.1 4.5 | 9.6 49.3 265 2 1 8.5 4.7
9000 12.7 54.9 225 6 3 7.9 4.3 | 12.6 54.7 215 2 1 7.6 4.1
8000 16.0 60.8 240 3 2 9.8 5.4 | 15.0 59.0 180 2 1 8.0 4.4
7500 17.0 62.6 255 3 1 5.7 3.1 | 15.7 60.3 215 1 1 4.0 2.2
7000 18.0 64.4 290 2 1 7.5 4.1 | 16.5 61.7 245 1 1 5.1 2.8
6500 18.8 65.8 315 3 1 3.8 2.1 | 17.4 63.3 265 2 1 6.2 3.4
6000 19.4 66.9 325 3 1 4.2 2.3 | 18.2 64.8 260 2 1 5.0 2.8
5500 19.8 67.6 330 3 1 1.1 0.6 | 19.0 66.2 250 3 2 6.0 3.3
5000 20.0 68.0 325 2 1 0.2 0.1 | 19.7 67.5 250 4 2 5.0 2.7
4750 19.8 67.6 320 1 0 -3.3 -1.8 | 20.1 68.2 250 4 2 8.0 4.4
4500 19.5 67.1 000 0 0 -4.1 -2.2 | 20.8 69.4 250 4 2 10.6 5.8
4250 19.2 66.6 300 1 0 -3.8 -2.1 | 21.6 70.9 250 4 2 10.7 5.9
4000 18.9 66.0 290 1 0 -1.6 -0.9 | 22.4 72.3 250 4 2 8.9 4.9
3750 19.0 66.2 235 1 1 4.0 2.2 | 23.0 73.4 250 4 2 11.5 6.3
3500 19.4 66.9 225 1 1 6.9 3.8 | 24.1 75.4 250 4 2 16.7 9.1
3400 19.4 66.9 225 1 1 6.9 3.8 | 24.1 75.4 250 4 2 16.7 9.1
3300 19.9 67.8 220 2 1 6.7 3.7 | 25.3 77.5 245 4 2 14.5 8.0
3200 19.9 67.8 220 2 1 6.7 3.7 | 25.3 77.5 245 4 2 14.5 8.0
3100 19.9 67.8 220 2 1 6.7 3.7 | 25.3 77.5 245 4 2 14.5 8.0
3000 20.5 68.9 215 2 1 8.1 4.5 | 26.5 79.7 245 5 2 21.7 11.9
2900 M M M M M M M | M M M M M M M
08/13/2026 AT 1500 MDT | 08/13/2026 AT 1800 MDT
|
CAPE... +91.5 LI... -1.8 | CAPE... +145.8 LI... -1.7
CINH... -36.0 K INDEX... +28.5 | CINH... -29.9 K INDEX... +28.0
|
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 -51.4 -60.5 210 39 20 2.7 1.5 | -51.1 -60.0 210 35 18 2.5 1.4
38000 -49.7 -57.5 200 37 19 2.8 1.5 | -49.6 -57.3 195 32 16 2.5 1.3
36000 -48.1 -54.6 185 36 19 2.8 1.5 | -48.2 -54.8 180 30 15 2.4 1.3
34000 -44.3 -47.7 180 35 18 8.2 4.5 | -44.6 -48.3 180 29 15 7.9 4.4
32000 -39.4 -38.9 185 32 17 8.2 4.5 | -39.9 -39.8 185 27 14 7.9 4.4
30000 -34.6 -30.3 190 30 15 7.9 4.3 | -34.9 -30.8 195 26 13 8.5 4.7
28000 -29.9 -21.8 205 29 15 7.9 4.4 | -29.8 -21.6 210 26 14 8.5 4.7
26000 -24.4 -11.9 210 29 15 8.2 4.5 | -24.8 -12.6 215 26 14 7.3 4.0
24000 -20.0 -4.0 215 28 14 5.8 3.2 | -20.6 -5.1 220 25 13 6.4 3.5
22000 -16.5 2.3 230 22 11 5.8 3.2 | -16.7 1.9 235 20 10 6.4 3.5
20000 -13.4 7.9 240 20 10 5.2 2.9 | -13.0 8.6 245 19 10 6.1 3.4
18000 -9.9 14.2 245 18 9 6.8 3.7 | -9.6 14.7 245 19 10 5.7 3.1
16000 -5.5 22.1 245 14 7 7.8 4.3 | -5.6 21.9 245 17 9 7.7 4.2
14000 -1.1 30.0 245 8 4 7.7 4.2 | -0.9 30.4 245 14 7 8.9 4.9
12000 3.6 38.5 235 4 2 8.8 4.8 | 4.1 39.4 250 9 4 8.5 4.6
10000 8.8 47.8 215 4 2 8.8 4.8 | 9.1 48.4 240 4 2 9.0 4.9
9000 12.1 53.8 205 5 2 8.7 4.8 | 12.4 54.3 225 3 1 8.3 4.5
8000 14.7 58.5 200 4 2 8.4 4.6 | 14.9 58.8 205 3 1 8.5 4.7
7500 15.8 60.4 205 4 2 7.3 4.0 | 16.1 61.0 200 3 2 8.6 4.7
7000 17.0 62.6 215 4 2 7.6 4.2 | 17.3 63.1 195 3 2 9.0 4.9
6500 18.2 64.8 225 4 2 9.5 5.2 | 19.0 66.2 190 3 2 11.3 6.2
6000 19.6 67.3 225 4 2 9.7 5.3 | 20.5 68.9 185 4 2 10.0 5.5
5500 20.9 69.6 230 4 2 9.5 5.2 | 21.9 71.4 180 4 2 9.8 5.4
5000 22.4 72.3 230 4 2 10.9 6.0 | 23.4 74.1 175 4 2 10.5 5.8
4750 23.3 73.9 225 4 2 11.0 6.0 | 24.2 75.6 175 5 2 10.2 5.6
4500 24.1 75.4 230 4 2 9.4 5.2 | 24.9 76.8 175 5 2 9.1 5.0
4250 24.8 76.6 230 4 2 9.4 5.1 | 25.6 78.1 175 4 2 9.1 5.0
4000 25.5 77.9 230 4 2 10.1 5.6 | 26.3 79.3 175 4 2 9.6 5.3
3750 26.3 79.3 225 4 2 13.4 7.4 | 27.1 80.8 175 5 2 11.4 6.2
3500 27.4 81.3 225 4 2 16.0 8.8 | 28.0 82.4 175 5 2 12.6 6.9
3400 27.4 81.3 225 4 2 16.0 8.8 | 28.0 82.4 175 5 2 12.6 6.9
3300 28.6 83.5 225 4 2 15.0 8.2 | 28.9 84.0 175 5 2 12.1 6.6
3200 28.6 83.5 225 4 2 15.0 8.2 | 28.9 84.0 175 5 2 12.1 6.6
3100 28.6 83.5 225 4 2 15.0 8.2 | 28.9 84.0 175 5 2 12.1 6.6
3000 29.7 85.5 230 4 2 18.1 9.9 | 29.8 85.6 175 5 2 13.6 7.4
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
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