392
UXUS97 KBOI 021305
SRGBOI
SOARING FORECAST
NATIONAL WEATHER SERVICE BOISE, IDAHO
705 AM MDT WEDNESDAY, SEPTEMBER 2, 2026
THIS FORECAST IS FOR WEDNESDAY, SEPTEMBER 2, 2026:
IF THE TRIGGER TEMPERATURE OF 72.9 F/22.7 C IS REACHED...THEN
THERMAL SOARING INDEX....................... GOOD
MAXIMUM RATE OF LIFT........................ 597 FT/MIN (3.0 M/S)
MAXIMUM HEIGHT OF THERMALS.................. 8967 FT MSL (6000 FT AGL)
FORECAST MAXIMUM TEMPERATURE................... 76.0 F/24.9 C
TIME OF TRIGGER TEMPERATURE.................... 1500 MDT
TIME OF OVERDEVELOPMENT........................ 1600 MDT
MIDDLE/HIGH CLOUDS DURING SOARING WINDOW....... NONE
SURFACE WINDS DURING SOARING WINDOW............ 20 MPH OR LESS
HEIGHT OF THE -3 THERMAL INDEX................. 5742 FT MSL (2776 FT AGL)
THERMAL SOARING OUTLOOK FOR THURSDAY 09/03..... GOOD
WAVE SOARING INDEX............................. NOT AVAILABLE
REMARKS...
SUNRISE/SUNSET.................... 07:10:14 / 20:18:40 MDT
TOTAL POSSIBLE SUNSHINE........... 13 HR 8 MIN 26 SEC (788 MIN 26 SEC)
ALTITUDE OF SUN AT 13:44:27 MDT... 52.84 DEGREES
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 09/02/2026 AT 0600 MDT
FREEZING LEVEL.................. 12346 FT MSL (9379 FT AGL)
CONVECTIVE CONDENSATION LEVEL... 14552 FT MSL (11585 FT AGL)
LIFTED CONDENSATION LEVEL....... 12670 FT MSL (9703 FT AGL)
LIFTED INDEX.................... +0.3
K INDEX......................... +25.9
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 -51.4 -60.5 205 54 28 -0.9 -0.5 M M M M M
38000 -51.6 -60.9 200 58 30 -0.2 -0.1 M M M M M
36000 -51.8 -61.2 195 63 32 -0.2 -0.1 M M M M M
34000 -50.2 -58.4 190 66 34 8.3 4.5 M M M M M
32000 -45.2 -49.4 190 65 34 8.3 4.6 M M M M M
30000 -40.5 -40.9 190 63 32 7.1 3.9 42.4 108.3 13.2 M M
28000 -36.2 -33.2 185 59 30 7.1 3.9 40.2 104.4 11.9 M M
26000 -32.0 -25.6 190 54 28 7.2 3.9 38.2 100.8 10.6 M M
24000 -27.2 -17.0 190 50 26 7.1 3.9 36.1 97.0 9.1 M M
22000 -22.9 -9.2 195 46 24 7.1 3.9 34.1 93.3 7.7 M M
20000 -18.5 -1.3 190 42 22 7.8 4.3 32.5 90.5 6.4 M M
18000 -13.8 7.2 185 38 19 8.4 4.6 31.3 88.4 5.5 M M
16000 -8.8 16.2 175 33 17 8.4 4.6 30.4 86.8 4.7 M M
14000 -4.0 24.8 160 25 13 7.8 4.3 29.4 84.9 3.8 M M
12000 0.7 33.3 155 15 8 8.3 4.5 28.2 82.8 2.7 M M
10000 5.0 41.0 220 7 4 6.5 3.6 26.7 80.0 1.2 M M
9000 6.8 44.2 265 11 6 6.3 3.4 25.6 78.0 0.1 M M
8000 9.4 48.9 285 20 10 6.9 3.8 24.3 75.7 -0.9 296 1.5
7500 10.6 51.1 285 21 11 7.5 4.1 23.9 75.0 -1.2 247 1.3
7000 11.5 52.7 285 22 11 5.2 2.9 23.4 74.1 -1.7 204 1.0
6500 12.6 54.7 285 22 11 8.3 4.5 23.1 73.5 -2.1 156 0.8
6000 13.5 56.3 285 22 11 5.9 3.2 22.5 72.4 -2.8 117 0.6
5500 14.2 57.6 285 20 11 4.6 2.5 21.8 71.2 -3.5 79 0.4
5000 14.9 58.8 285 20 10 4.7 2.6 21.0 69.8 -4.2 43 0.2
4750 15.3 59.5 285 20 10 4.5 2.4 20.6 69.1 -4.6 25 0.1
4500 15.6 60.1 285 20 10 4.0 2.2 20.2 68.3 -5.0 7 0.0
4250 16.0 60.8 285 17 9 4.2 2.3 19.7 67.5 -5.4 M M
4000 16.3 61.3 280 14 7 3.4 1.9 19.3 66.8 -5.8 M M
3750 16.4 61.5 280 14 7 -0.6 -0.3 18.7 65.7 -6.5 M M
3500 16.1 61.0 280 11 6 -3.8 -2.1 18.0 64.3 -7.3 M M
3400 16.1 61.0 280 11 6 -3.8 -2.1 18.0 64.3 -7.3 M M
3300 15.8 60.4 275 8 4 -2.9 -1.6 17.2 62.9 -8.2 M M
3200 15.8 60.4 275 8 4 -2.9 -1.6 17.2 62.9 -8.2 M M
3100 15.8 60.4 275 8 4 -2.9 -1.6 17.2 62.9 -8.2 M M
3000 15.4 59.7 270 5 2 -5.9 -3.3 16.4 61.6 -9.0 M M
2900 M M M M M M M M M M M M
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *
09/02/2026 AT 0900 MDT | 09/02/2026 AT 1200 MDT
|
CAPE... +166.8 LI... -0.2 | CAPE... +1.7 LI... +1.1
CINH... -67.3 K INDEX... +24.4 | CINH... -1.8 K INDEX... +18.3
|
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 -47.3 -53.1 215 47 24 1.1 0.6 | -48.5 -55.3 240 46 24 0.8 0.5
38000 -46.9 -52.4 210 47 24 0.4 0.2 | -48.8 -55.8 245 52 27 -1.0 -0.5
36000 -46.7 -52.1 205 47 24 0.4 0.2 | -49.4 -56.9 250 60 31 -1.0 -0.5
34000 -46.2 -51.2 200 46 24 1.9 1.1 | -48.7 -55.7 255 64 33 6.3 3.4
32000 -45.1 -49.2 195 44 22 1.9 1.1 | -44.9 -48.8 265 62 32 6.4 3.5
30000 -43.4 -46.1 190 42 21 5.9 3.2 | -40.7 -41.3 270 61 31 8.3 4.6
28000 -39.9 -39.8 190 39 20 5.9 3.2 | -35.7 -32.3 270 61 32 8.4 4.6
26000 -35.8 -32.4 195 38 20 8.1 4.4 | -31.1 -24.0 260 60 31 6.8 3.7
24000 -30.3 -22.5 200 39 20 7.9 4.3 | -26.6 -15.9 250 56 29 6.0 3.3
22000 -25.6 -14.1 195 41 21 7.9 4.3 | -23.2 -9.8 245 48 25 5.7 3.1
20000 -20.8 -5.4 195 42 22 8.4 4.6 | -19.4 -2.9 235 41 21 6.6 3.6
18000 -15.7 3.7 195 43 22 8.7 4.8 | -15.4 4.3 225 36 18 6.8 3.7
16000 -10.7 12.7 190 40 21 8.3 4.6 | -11.6 11.1 220 34 17 6.3 3.4
14000 -6.1 21.0 185 34 18 7.4 4.1 | -7.7 18.1 210 34 18 7.2 3.9
12000 -2.1 28.2 195 25 13 6.2 3.4 | -3.4 25.9 210 31 16 6.9 3.8
10000 1.2 34.2 230 16 8 5.5 3.0 | 0.4 32.7 215 24 12 7.0 3.9
9000 3.1 37.6 255 17 9 6.6 3.6 | 3.0 37.4 215 17 9 7.1 3.9
8000 5.9 42.6 280 19 10 10.2 5.6 | 5.2 41.4 220 12 6 9.5 5.2
7500 7.0 44.6 285 19 10 4.8 2.7 | 6.3 43.3 220 10 5 6.7 3.7
7000 8.0 46.4 290 19 10 7.6 4.2 | 7.6 45.7 220 9 5 8.3 4.5
6500 9.3 48.7 295 17 9 8.9 4.9 | 9.1 48.4 220 9 4 11.1 6.1
6000 10.5 50.9 305 17 9 8.2 4.5 | 10.5 50.9 220 9 4 10.0 5.5
5500 11.8 53.2 310 17 9 8.4 4.6 | 11.9 53.4 225 8 4 9.5 5.2
5000 12.8 55.0 320 16 8 8.9 4.9 | 13.5 56.3 225 8 4 9.8 5.4
4750 13.6 56.5 325 14 7 9.4 5.1 | 14.2 57.6 225 8 4 9.4 5.2
4500 14.1 57.4 330 13 6 5.3 2.9 | 14.9 58.8 225 8 4 10.6 5.8
4250 14.4 57.9 340 11 6 3.9 2.2 | 15.7 60.3 225 7 4 11.1 6.1
4000 14.8 58.6 350 10 5 5.9 3.3 | 16.5 61.7 225 7 4 9.3 5.1
3750 15.2 59.4 360 9 5 6.2 3.4 | 17.2 63.0 230 7 4 9.4 5.1
3500 15.6 60.1 360 8 4 4.6 2.5 | 18.0 64.4 230 7 4 10.4 5.7
3400 15.6 60.1 360 8 4 4.6 2.5 | 18.0 64.4 230 7 4 10.4 5.7
3300 15.9 60.6 360 7 4 5.8 3.2 | 18.8 65.8 225 7 3 14.1 7.7
3200 15.9 60.6 360 7 4 5.8 3.2 | 18.8 65.8 225 7 3 14.1 7.7
3100 15.9 60.6 360 7 4 5.8 3.2 | 18.8 65.8 225 7 3 14.1 7.7
3000 16.4 61.5 005 7 3 7.0 3.8 | 20.7 69.3 230 6 3 46.6 25.6
2900 M M M M M M M | M M M M M M M
09/02/2026 AT 1500 MDT | 09/02/2026 AT 1800 MDT
|
CAPE... +12.9 LI... +3.5 | CAPE... +5.9 LI... +3.0
CINH... -1.8 K INDEX... +18.7 | CINH... -1.0 K INDEX... +22.7
|
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 -52.0 -61.6 235 55 28 0.0 0.0 | -52.0 -61.6 240 49 25 -0.2 -0.1
38000 -51.8 -61.2 235 54 28 0.5 0.3 | -51.7 -61.1 240 48 25 0.6 0.3
36000 -51.5 -60.7 235 52 27 0.5 0.3 | -51.4 -60.5 235 46 24 0.6 0.3
34000 -49.6 -57.3 235 50 26 7.7 4.2 | -49.5 -57.1 230 43 22 7.7 4.2
32000 -45.0 -49.0 230 48 25 7.7 4.2 | -44.9 -48.8 235 40 21 7.6 4.2
30000 -40.2 -40.4 230 46 24 8.8 4.8 | -40.1 -40.2 235 38 19 8.6 4.7
28000 -34.9 -30.8 240 44 23 8.8 4.8 | -35.0 -31.0 230 37 19 8.6 4.7
26000 -29.7 -21.5 245 43 22 8.7 4.7 | -30.1 -22.2 225 37 19 7.8 4.3
24000 -23.9 -11.0 250 40 21 7.5 4.1 | -24.9 -12.8 220 36 18 7.6 4.1
22000 -19.4 -2.9 255 38 19 7.6 4.2 | -20.4 -4.7 225 33 17 7.6 4.2
20000 -15.6 3.9 250 36 19 5.8 3.2 | -16.2 2.8 225 31 16 7.0 3.8
18000 -12.5 9.5 245 35 18 4.2 2.3 | -12.1 10.2 230 28 15 6.6 3.6
16000 -9.8 14.4 235 33 17 5.7 3.2 | -8.9 16.0 225 26 13 3.8 2.1
14000 -6.4 20.5 230 29 15 5.4 3.0 | -6.5 20.3 220 25 13 4.7 2.6
12000 -3.5 25.7 225 24 12 5.9 3.2 | -2.9 26.8 210 20 10 8.2 4.5
10000 0.9 33.6 215 17 9 8.8 4.8 | 2.5 36.5 210 16 8 9.7 5.3
9000 4.3 39.7 215 14 7 9.8 5.4 | 5.4 41.7 210 15 8 9.7 5.3
8000 7.5 45.5 215 13 7 12.9 7.1 | 9.1 48.4 210 13 7 10.6 5.8
7500 8.8 47.8 215 13 7 6.6 3.6 | 10.6 51.1 215 13 7 9.2 5.0
7000 10.2 50.4 215 13 7 10.1 5.6 | 12.0 53.6 215 13 7 9.7 5.3
6500 11.6 52.9 215 13 7 9.6 5.3 | 13.5 56.3 215 13 7 10.0 5.5
6000 13.1 55.6 220 12 6 9.8 5.4 | 15.0 59.0 215 12 6 10.2 5.6
5500 14.6 58.3 220 12 6 10.4 5.7 | 16.5 61.7 215 12 6 9.7 5.3
5000 16.2 61.2 220 11 6 10.2 5.6 | 17.9 64.2 215 12 6 10.3 5.6
4750 16.9 62.4 220 11 6 10.2 5.6 | 18.7 65.7 220 11 6 10.5 5.8
4500 17.7 63.9 220 11 6 10.1 5.6 | 19.5 67.1 220 11 5 9.6 5.3
4250 18.4 65.1 220 11 5 10.3 5.6 | 20.2 68.4 220 10 5 9.3 5.1
4000 19.2 66.6 220 10 5 9.8 5.4 | 20.9 69.6 220 10 5 9.6 5.3
3750 20.0 68.0 220 10 5 12.9 7.1 | 21.6 70.9 220 10 5 10.7 5.9
3500 21.1 70.0 225 10 5 17.0 9.4 | 22.5 72.5 220 9 5 11.6 6.4
3400 21.1 70.0 225 10 5 17.0 9.4 | 22.5 72.5 220 9 5 11.6 6.4
3300 22.4 72.3 225 9 5 15.3 8.4 | 23.3 73.9 220 9 4 11.3 6.2
3200 22.4 72.3 225 9 5 15.3 8.4 | 23.3 73.9 220 9 4 11.3 6.2
3100 22.4 72.3 225 9 5 15.3 8.4 | 23.3 73.9 220 9 4 11.3 6.2
3000 23.6 74.5 225 9 5 20.9 11.5 | 24.2 75.6 220 8 4 12.3 6.7
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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