954
UXUS97 KBOI 101305
SRGBOI
SOARING FORECAST
NATIONAL WEATHER SERVICE BOISE, IDAHO
705 AM MDT THURSDAY, SEPTEMBER 10, 2026
THIS FORECAST IS FOR THURSDAY, SEPTEMBER 10, 2026:
IF THE TRIGGER TEMPERATURE OF 81.7 F/27.6 C IS REACHED...THEN
THERMAL SOARING INDEX....................... GOOD
MAXIMUM RATE OF LIFT........................ 539 FT/MIN (2.7 M/S)
MAXIMUM HEIGHT OF THERMALS.................. 10439 FT MSL (7472 FT AGL)
FORECAST MAXIMUM TEMPERATURE................... 87.0 F/31.0 C
TIME OF TRIGGER TEMPERATURE.................... 1400 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................. 6818 FT MSL (3852 FT AGL)
THERMAL SOARING OUTLOOK FOR FRIDAY 09/11....... GOOD
WAVE SOARING INDEX............................. NOT AVAILABLE
REMARKS...
SUNRISE/SUNSET.................... 07:19:08 / 20:04:21 MDT
TOTAL POSSIBLE SUNSHINE........... 12 HR 45 MIN 13 SEC (765 MIN 13 SEC)
ALTITUDE OF SUN AT 13:41:44 MDT... 50.07 DEGREES
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 09/10/2026 AT 0600 MDT
FREEZING LEVEL.................. 15906 FT MSL (12939 FT AGL)
CONVECTIVE CONDENSATION LEVEL... 20056 FT MSL (17089 FT AGL)
LIFTED CONDENSATION LEVEL....... 15472 FT MSL (12505 FT AGL)
LIFTED INDEX.................... +6.3
K INDEX......................... -8.4
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 -53.6 -64.5 270 52 27 6.5 3.6 M M M M M
38000 -49.7 -57.5 270 47 24 6.6 3.6 M M M M M
36000 -45.7 -50.3 270 42 22 6.6 3.6 M M M M M
34000 -41.8 -43.2 260 35 18 6.4 3.5 M M M M M
32000 -37.9 -36.2 240 30 15 6.4 3.5 M M M M M
30000 -33.3 -27.9 235 24 13 8.2 4.5 49.6 121.3 14.1 M M
28000 -28.4 -19.1 235 18 9 8.4 4.6 48.5 119.3 13.6 M M
26000 -22.5 -8.5 240 19 10 8.7 4.8 47.5 117.4 13.2 M M
24000 -17.5 0.5 245 19 10 7.7 4.2 46.3 115.4 12.6 M M
22000 -13.0 8.6 245 17 9 7.5 4.1 44.9 112.7 11.6 M M
20000 -8.6 16.5 240 17 9 7.4 4.0 43.0 109.4 10.3 M M
18000 -4.3 24.3 240 19 10 7.0 3.8 41.3 106.4 9.0 M M
16000 -0.3 31.5 250 18 9 6.6 3.6 39.2 102.6 7.4 M M
14000 3.1 37.6 265 17 9 4.9 2.7 36.3 97.4 5.0 M M
12000 6.1 43.0 270 16 8 5.3 2.9 33.2 91.8 2.2 M M
10000 9.4 48.9 270 15 8 7.1 3.9 30.6 87.1 -0.3 510 2.6
9000 12.1 53.8 265 13 7 7.7 4.2 29.7 85.4 -1.3 392 2.0
8000 14.5 58.1 260 12 6 6.9 3.8 29.3 84.7 -1.8 289 1.5
7500 15.3 59.5 255 11 6 6.9 3.8 28.6 83.5 -2.5 250 1.3
7000 16.4 61.5 250 10 5 7.0 3.8 28.2 82.8 -2.9 204 1.0
6500 17.2 63.0 240 8 4 5.0 2.8 27.6 81.7 -3.5 164 0.8
6000 17.9 64.2 235 7 3 4.5 2.5 26.9 80.4 -4.3 127 0.6
5500 18.4 65.1 230 5 3 3.2 1.8 25.9 78.7 -5.3 98 0.5
5000 18.7 65.7 215 3 2 0.2 0.1 24.8 76.6 -6.5 75 0.4
4750 18.6 65.5 210 3 1 -0.2 -0.1 24.0 75.2 -7.3 69 0.4
4500 18.7 65.7 195 2 1 0.5 0.2 23.3 73.9 -8.0 62 0.3
4250 18.6 65.5 175 2 1 -2.4 -1.3 22.5 72.5 -8.8 55 0.3
4000 18.2 64.8 155 2 1 -8.1 -4.5 21.4 70.4 -10.0 59 0.3
3750 17.9 64.2 135 3 1 3.3 1.8 20.2 68.4 -11.1 63 0.3
3500 18.1 64.6 075 5 2 -11.7 -6.4 19.7 67.5 -11.6 49 0.2
3400 18.1 64.6 075 5 2 -11.7 -6.4 19.7 67.5 -11.6 49 0.2
3300 15.1 59.2 080 5 3 -67.1 -36.8 16.3 61.4 -15.0 130 0.7
3200 15.1 59.2 080 5 3 -67.1 -36.8 16.3 61.4 -15.0 130 0.7
3100 15.1 59.2 080 5 3 -67.1 -36.8 16.3 61.4 -15.0 130 0.7
3000 12.1 53.8 085 6 3 37.0 20.3 12.8 55.1 -18.5 214 1.1
2900 M M M M M M M M M M M M
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *
09/10/2026 AT 0900 MDT | 09/10/2026 AT 1200 MDT
|
CAPE... 0.0 LI... +6.9 | CAPE... 0.0 LI... +5.4
CINH... 0.0 K INDEX... -1.0 | CINH... 0.0 K INDEX... +2.5
|
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 -53.5 -64.3 270 58 30 6.6 3.6 | -53.3 -63.9 265 60 31 6.8 3.7
38000 -49.5 -57.1 265 54 28 6.6 3.6 | -49.3 -56.7 265 59 31 6.8 3.7
36000 -45.5 -49.9 265 50 26 6.6 3.6 | -45.2 -49.4 260 59 30 6.8 3.7
34000 -41.2 -42.2 265 48 25 7.4 4.1 | -41.0 -41.8 260 55 28 6.9 3.8
32000 -36.7 -34.1 265 47 24 7.3 4.0 | -36.9 -34.4 255 51 26 7.0 3.8
30000 -32.5 -26.5 260 40 21 7.0 3.8 | -32.3 -26.1 250 48 25 7.8 4.3
28000 -28.3 -18.9 250 34 17 7.1 3.9 | -27.7 -17.9 250 47 24 7.7 4.3
26000 -23.2 -9.8 245 30 15 7.5 4.1 | -23.1 -9.6 255 40 20 6.7 3.7
24000 -18.6 -1.5 245 27 14 7.7 4.2 | -19.0 -2.2 255 34 17 7.2 4.0
22000 -14.0 6.8 245 25 13 7.7 4.2 | -14.6 5.7 255 29 15 7.1 3.9
20000 -9.3 15.3 245 26 13 7.8 4.3 | -10.6 12.9 255 30 15 6.7 3.7
18000 -5.1 22.8 255 26 14 6.3 3.5 | -6.5 20.3 260 31 16 6.9 3.8
16000 -1.5 29.3 260 26 14 5.8 3.2 | -2.4 27.7 260 31 16 6.7 3.7
14000 2.0 35.6 265 24 12 6.1 3.3 | 1.4 34.5 260 29 15 5.9 3.2
12000 5.3 41.5 265 21 11 5.8 3.2 | 4.9 40.8 255 26 13 6.8 3.7
10000 8.9 48.0 265 19 10 7.9 4.3 | 9.3 48.7 250 19 10 8.2 4.5
9000 11.8 53.2 265 17 9 8.2 4.5 | 12.3 54.1 250 16 8 8.1 4.4
8000 14.3 57.7 260 15 8 8.2 4.5 | 14.8 58.6 245 14 7 7.8 4.3
7500 15.2 59.4 255 13 7 5.7 3.2 | 15.7 60.3 240 12 6 5.2 2.8
7000 16.2 61.2 250 12 6 6.5 3.6 | 16.6 61.9 230 11 6 5.4 3.0
6500 17.0 62.6 240 10 5 5.2 2.8 | 17.3 63.1 225 10 5 5.4 2.9
6000 17.8 64.0 225 8 4 4.1 2.3 | 18.1 64.6 210 9 4 4.1 2.3
5500 18.2 64.8 210 6 3 2.6 1.4 | 18.6 65.5 195 7 4 4.5 2.5
5000 18.4 65.1 185 5 3 0.6 0.3 | 19.1 66.4 180 6 3 1.5 0.8
4750 18.4 65.1 175 5 3 -0.7 -0.4 | 19.2 66.6 170 6 3 2.9 1.6
4500 18.3 64.9 160 5 2 -1.7 -0.9 | 19.6 67.3 170 6 3 7.0 3.9
4250 18.1 64.6 145 5 3 -2.5 -1.4 | 20.1 68.2 175 5 3 8.5 4.7
4000 17.9 64.2 140 5 3 -4.9 -2.7 | 20.8 69.4 175 5 3 9.7 5.3
3750 17.7 63.9 130 6 3 1.7 1.0 | 21.6 70.9 175 5 3 9.0 4.9
3500 18.0 64.4 105 4 2 -1.7 -1.0 | 22.3 72.1 175 5 2 11.8 6.5
3400 18.0 64.4 105 4 2 -1.7 -1.0 | 22.3 72.1 175 5 2 11.8 6.5
3300 16.9 62.4 100 4 2 -26.5 -14.6 | 23.4 74.1 175 5 2 17.7 9.7
3200 16.9 62.4 100 4 2 -26.5 -14.6 | 23.4 74.1 175 5 2 17.7 9.7
3100 16.9 62.4 100 4 2 -26.5 -14.6 | 23.4 74.1 175 5 2 17.7 9.7
3000 15.8 60.4 095 5 2 19.9 10.9 | 24.6 76.3 175 5 3 10.2 5.6
2900 M M M M M M M | M M M M M M M
09/10/2026 AT 1500 MDT | 09/10/2026 AT 1800 MDT
|
CAPE... 0.0 LI... +4.1 | CAPE... 0.0 LI... +2.3
CINH... 0.0 K INDEX... +12.1 | CINH... 0.0 K INDEX... +12.5
|
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 -53.0 -63.4 260 63 32 6.3 3.4 | -52.4 -62.3 260 67 34 6.0 3.3
38000 -49.3 -56.7 260 61 32 6.3 3.4 | -48.8 -55.8 260 64 33 6.0 3.3
36000 -45.5 -49.9 255 60 31 6.2 3.4 | -45.3 -49.5 260 62 32 6.0 3.3
34000 -41.1 -42.0 255 56 29 7.7 4.2 | -41.1 -42.0 255 58 30 7.2 4.0
32000 -36.5 -33.7 255 51 26 7.7 4.2 | -36.8 -34.2 255 55 28 7.2 4.0
30000 -31.8 -25.2 250 46 24 7.8 4.3 | -32.4 -26.3 255 52 27 7.5 4.1
28000 -27.2 -17.0 250 42 22 7.8 4.3 | -27.9 -18.2 255 48 25 7.6 4.2
26000 -22.5 -8.5 250 38 20 7.0 3.8 | -24.0 -11.2 255 44 23 6.6 3.6
24000 -18.5 -1.3 255 34 18 6.5 3.5 | -19.7 -3.5 250 40 21 6.1 3.3
22000 -14.7 5.5 260 30 16 6.2 3.4 | -16.1 3.0 260 39 20 6.1 3.4
20000 -11.6 11.1 270 30 15 4.9 2.7 | -12.2 10.0 265 38 19 6.7 3.7
18000 -7.9 17.8 270 30 16 7.2 3.9 | -7.9 17.8 270 37 19 7.4 4.0
16000 -3.4 25.9 265 32 17 7.5 4.1 | -3.5 25.7 270 38 19 7.3 4.0
14000 0.7 33.3 265 33 17 7.0 3.8 | 0.9 33.6 265 37 19 7.5 4.1
12000 4.9 40.8 260 30 15 7.8 4.3 | 5.2 41.4 265 32 17 7.6 4.2
10000 9.7 49.5 255 24 12 8.1 4.5 | 9.8 49.6 255 25 13 8.9 4.9
9000 12.7 54.9 250 21 11 8.0 4.4 | 12.5 54.5 250 21 11 8.8 4.8
8000 15.3 59.5 250 18 9 7.9 4.4 | 16.1 61.0 245 18 9 9.3 5.1
7500 16.2 61.2 245 16 8 6.5 3.6 | 17.1 62.8 245 15 8 7.1 3.9
7000 17.3 63.1 240 14 7 6.0 3.3 | 18.3 64.9 240 13 7 8.4 4.6
6500 18.2 64.8 240 12 6 8.2 4.5 | 19.7 67.5 240 11 6 8.8 4.8
6000 19.4 66.9 230 10 5 7.0 3.8 | 20.9 69.6 230 9 5 7.8 4.3
5500 20.4 68.7 215 7 4 6.9 3.8 | 22.1 71.8 215 7 3 8.8 4.8
5000 21.4 70.5 195 7 3 5.7 3.1 | 23.4 74.1 205 6 3 9.0 4.9
4750 21.8 71.2 195 6 3 5.9 3.2 | 24.1 75.4 200 5 3 9.7 5.3
4500 22.3 72.1 190 6 3 7.4 4.1 | 24.8 76.6 195 5 3 9.7 5.3
4250 22.8 73.0 190 6 3 8.2 4.5 | 25.5 77.9 195 5 3 9.6 5.3
4000 23.5 74.3 190 5 3 9.2 5.0 | 26.2 79.2 195 5 3 8.8 4.8
3750 24.1 75.4 195 5 3 9.6 5.3 | 26.9 80.4 195 5 2 8.9 4.9
3500 24.9 76.8 195 5 2 11.7 6.4 | 27.6 81.7 195 4 2 9.5 5.2
3400 24.9 76.8 195 5 2 11.7 6.4 | 27.6 81.7 195 4 2 9.5 5.2
3300 25.9 78.6 195 5 2 14.6 8.0 | 28.3 82.9 195 4 2 9.4 5.1
3200 25.9 78.6 195 5 2 14.6 8.0 | 28.3 82.9 195 4 2 9.4 5.1
3100 25.9 78.6 195 5 2 14.6 8.0 | 28.3 82.9 195 4 2 9.4 5.1
3000 27.0 80.6 195 5 2 15.4 8.4 | 29.0 84.2 195 4 2 11.8 6.5
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page