344
UXUS97 KBOI 011305
SRGBOI
SOARING FORECAST
NATIONAL WEATHER SERVICE BOISE, IDAHO
705 AM MDT TUESDAY, SEPTEMBER 1, 2026
THIS FORECAST IS FOR TUESDAY, SEPTEMBER 1, 2026:
IF THE TRIGGER TEMPERATURE OF 84.7 F/29.3 C IS REACHED...THEN
THERMAL SOARING INDEX....................... FAIR
MAXIMUM RATE OF LIFT........................ 275 FT/MIN (1.4 M/S)
MAXIMUM HEIGHT OF THERMALS.................. 7700 FT MSL (4733 FT AGL)
FORECAST MAXIMUM TEMPERATURE................... 86.0 F/30.5 C
TIME OF TRIGGER TEMPERATURE.................... 1445 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................. 5496 FT MSL (2529 FT AGL)
THERMAL SOARING OUTLOOK FOR WEDNESDAY 09/02.... FAIR
WAVE SOARING INDEX............................. NOT AVAILABLE
REMARKS...
SUNRISE/SUNSET.................... 07:09:07 / 20:20:25 MDT
TOTAL POSSIBLE SUNSHINE........... 13 HR 11 MIN 18 SEC (791 MIN 18 SEC)
ALTITUDE OF SUN AT 13:44:46 MDT... 53.18 DEGREES
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 09/01/2026 AT 0600 MDT
FREEZING LEVEL.................. 14070 FT MSL (11103 FT AGL)
CONVECTIVE CONDENSATION LEVEL... 14476 FT MSL (11509 FT AGL)
LIFTED CONDENSATION LEVEL....... 13296 FT MSL (10330 FT AGL)
LIFTED INDEX.................... -2.0
K INDEX......................... +24.8
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 -57.0 -70.6 215 34 17 -1.4 -0.8 M M M M M
38000 -54.1 -65.4 215 30 16 5.5 3.0 M M M M M
36000 -50.8 -59.4 220 27 14 5.5 3.0 M M M M M
34000 -46.7 -52.1 220 26 14 8.0 4.4 M M M M M
32000 -41.9 -43.4 220 27 14 8.0 4.4 M M M M M
30000 -37.2 -35.0 220 27 14 7.5 4.1 45.3 113.6 11.3 M M
28000 -32.7 -26.9 220 26 13 7.5 4.1 43.6 110.5 10.3 M M
26000 -27.7 -17.9 210 23 12 7.5 4.1 41.6 106.9 9.0 M M
24000 -23.2 -9.8 205 21 11 7.4 4.1 40.0 103.9 7.8 M M
22000 -18.7 -1.7 205 19 10 7.5 4.1 38.2 100.8 6.6 M M
20000 -14.9 5.2 220 20 10 6.3 3.4 35.8 96.4 4.6 M M
18000 -11.1 12.0 225 21 11 7.1 3.9 33.7 92.7 2.8 M M
16000 -5.8 21.6 215 17 9 9.7 5.3 33.2 91.8 2.3 M M
14000 0.0 32.0 200 16 8 9.4 5.1 33.2 91.7 2.3 M M
12000 5.7 42.3 185 16 8 9.1 5.0 33.0 91.4 2.1 M M
10000 10.8 51.4 170 19 10 8.6 4.7 32.4 90.3 1.4 M M
9000 13.8 56.8 160 21 11 7.6 4.2 31.8 89.3 0.8 M M
8000 16.1 61.0 155 23 12 7.5 4.1 31.2 88.1 0.2 M M
7500 17.1 62.8 150 23 12 6.9 3.8 30.8 87.4 -0.3 249 1.3
7000 18.1 64.6 150 25 13 6.7 3.7 30.3 86.6 -0.7 204 1.0
6500 19.1 66.4 145 25 13 5.5 3.0 29.8 85.7 -1.2 159 0.8
6000 19.7 67.5 145 27 14 5.1 2.8 29.0 84.2 -2.0 126 0.6
5500 20.1 68.2 135 26 13 2.4 1.3 27.9 82.2 -3.2 101 0.5
5000 20.7 69.3 130 25 13 6.9 3.8 27.1 80.8 -4.1 68 0.3
4750 21.3 70.3 125 27 14 8.7 4.8 27.1 80.7 -4.1 41 0.2
4500 21.8 71.2 125 26 13 3.6 2.0 26.8 80.2 -4.4 20 0.1
4250 22.0 71.6 120 22 12 3.6 2.0 26.2 79.2 -5.0 7 0.0
4000 22.2 72.0 110 19 10 -0.7 -0.4 25.7 78.3 -5.5 M M
3750 21.6 70.9 110 21 11 -17.0 -9.3 24.4 75.9 -6.8 2 0.0
3500 20.0 68.0 105 17 9 -27.4 -15.1 22.0 71.7 -9.0 45 0.2
3400 20.0 68.0 105 17 9 -27.4 -15.1 22.0 71.7 -9.0 45 0.2
3300 18.1 64.6 105 12 6 -24.1 -13.2 19.5 67.2 -11.4 94 0.5
3200 18.1 64.6 105 12 6 -24.1 -13.2 19.5 67.2 -11.4 94 0.5
3100 18.1 64.6 105 12 6 -24.1 -13.2 19.5 67.2 -11.4 94 0.5
3000 16.2 61.2 095 7 4 -34.8 -19.1 17.1 62.7 -13.8 143 0.7
2900 M M M M M M M M M M M M
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *
09/01/2026 AT 0900 MDT | 09/01/2026 AT 1200 MDT
|
CAPE... +27.2 LI... -1.8 | CAPE... +78.3 LI... -0.8
CINH... -179.8 K INDEX... +26.5 | CINH... -66.9 K INDEX... +28.1
|
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 -56.1 -69.0 205 39 20 -2.5 -1.4 | -54.8 -66.6 210 41 21 -1.2 -0.6
38000 -54.2 -65.6 205 38 20 4.1 2.3 | -53.5 -64.3 205 41 21 2.8 1.5
36000 -51.7 -61.1 205 38 19 4.1 2.3 | -51.6 -60.9 195 42 22 2.7 1.5
34000 -47.4 -53.3 205 36 19 8.5 4.7 | -48.0 -54.4 195 40 20 8.6 4.7
32000 -42.3 -44.1 205 34 17 8.5 4.7 | -42.8 -45.0 195 35 18 8.6 4.7
30000 -37.6 -35.7 205 32 17 7.4 4.1 | -37.9 -36.2 195 31 16 7.9 4.3
28000 -33.2 -27.8 210 31 16 7.4 4.1 | -33.2 -27.8 195 28 15 7.9 4.3
26000 -28.5 -19.3 205 31 16 8.0 4.4 | -28.5 -19.3 190 28 15 7.9 4.3
24000 -23.9 -11.0 205 29 15 7.0 3.9 | -23.9 -11.0 185 29 15 7.3 4.0
22000 -19.7 -3.5 205 24 12 7.1 3.9 | -19.0 -2.2 185 31 16 7.4 4.1
20000 -14.8 5.4 210 18 9 7.5 4.1 | -14.7 5.5 180 32 16 7.4 4.0
18000 -10.4 13.3 210 15 8 7.7 4.2 | -10.3 13.5 170 33 17 7.8 4.3
16000 -5.6 21.9 195 16 8 8.6 4.7 | -5.8 21.6 170 33 17 7.5 4.1
14000 -0.2 31.6 180 19 10 9.3 5.1 | -1.4 29.5 170 30 15 7.8 4.3
12000 5.1 41.2 175 20 10 8.9 4.9 | 3.2 37.8 185 24 12 7.3 4.0
10000 10.2 50.4 165 22 11 8.1 4.5 | 7.2 45.0 195 18 10 6.6 3.6
9000 12.6 54.7 160 24 12 7.5 4.1 | 9.2 48.6 195 15 8 6.8 3.7
8000 15.3 59.5 155 27 14 7.3 4.0 | 11.9 53.4 185 13 7 8.3 4.6
7500 16.2 61.2 155 28 14 5.6 3.1 | 12.6 54.7 185 13 7 5.3 2.9
7000 17.1 62.8 150 29 15 6.2 3.4 | 13.8 56.8 180 14 7 7.5 4.1
6500 17.7 63.9 150 29 15 3.9 2.1 | 14.9 58.8 180 14 7 7.9 4.3
6000 18.4 65.1 145 31 16 6.2 3.4 | 16.1 61.0 180 14 7 8.1 4.4
5500 18.7 65.7 140 30 16 1.4 0.8 | 17.4 63.3 180 14 7 9.2 5.0
5000 19.2 66.6 130 30 15 5.6 3.1 | 18.6 65.5 185 13 7 9.3 5.1
4750 19.7 67.5 125 31 16 4.8 2.6 | 19.4 66.9 185 13 7 10.1 5.6
4500 19.8 67.6 125 27 14 -0.2 -0.1 | 20.0 68.0 185 13 7 8.8 4.8
4250 19.7 67.5 125 22 11 -1.2 -0.7 | 20.7 69.3 185 12 6 8.7 4.8
4000 19.6 67.3 125 17 9 0.5 0.3 | 21.3 70.3 190 11 6 10.3 5.7
3750 19.8 67.6 125 18 9 3.4 1.9 | 22.1 71.8 185 12 6 9.8 5.4
3500 20.1 68.2 125 15 8 4.5 2.4 | 22.7 72.9 190 11 6 7.0 3.9
3400 20.1 68.2 125 15 8 4.5 2.4 | 22.7 72.9 190 11 6 7.0 3.9
3300 20.5 68.9 125 12 6 4.5 2.5 | 23.3 73.9 190 9 5 9.3 5.1
3200 20.5 68.9 125 12 6 4.5 2.5 | 23.3 73.9 190 9 5 9.3 5.1
3100 20.5 68.9 125 12 6 4.5 2.5 | 23.3 73.9 190 9 5 9.3 5.1
3000 20.8 69.4 130 9 5 4.7 2.6 | 24.2 75.6 190 9 5 15.2 8.3
2900 M M M M M M M | M M M M M M M
09/01/2026 AT 1500 MDT | 09/01/2026 AT 1800 MDT
|
CAPE... +419.4 LI... -2.0 | CAPE... +379.9 LI... -2.7
CINH... -68.7 K INDEX... +28.4 | CINH... -30.8 K INDEX... +27.9
|
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 -54.2 -65.6 220 43 22 -1.2 -0.6 | -53.8 -64.8 215 44 23 -0.6 -0.4
38000 -52.8 -63.0 215 41 21 3.2 1.7 | -52.4 -62.3 220 45 23 3.0 1.7
36000 -50.9 -59.6 205 39 20 3.2 1.7 | -50.6 -59.1 225 47 24 3.0 1.7
34000 -47.5 -53.5 195 38 20 7.1 3.9 | -47.1 -52.8 225 45 23 7.4 4.1
32000 -43.2 -45.8 195 38 20 7.1 3.9 | -42.7 -44.9 225 40 21 7.5 4.1
30000 -38.7 -37.7 190 38 20 8.0 4.4 | -38.0 -36.4 225 36 18 8.2 4.5
28000 -33.9 -29.0 195 37 19 8.0 4.4 | -33.1 -27.6 220 32 17 8.1 4.5
26000 -29.3 -20.7 195 37 19 7.7 4.2 | -28.8 -19.8 210 32 16 6.8 3.7
24000 -24.7 -12.5 190 36 19 7.6 4.2 | -24.7 -12.5 205 33 17 7.3 4.0
22000 -20.1 -4.2 190 34 17 7.7 4.2 | -20.4 -4.7 195 31 16 7.3 4.0
20000 -15.0 5.0 190 33 17 7.8 4.3 | -15.6 3.9 190 30 16 7.3 4.0
18000 -10.5 13.1 185 35 18 7.7 4.2 | -11.1 12.0 185 29 15 8.0 4.4
16000 -5.9 21.4 175 34 18 8.6 4.7 | -6.5 20.3 185 28 14 8.5 4.7
14000 -0.9 30.4 180 28 14 8.0 4.4 | -1.4 29.5 185 24 12 9.1 5.0
12000 3.7 38.7 185 22 11 7.7 4.2 | 3.9 39.0 180 19 10 8.8 4.8
10000 8.2 46.8 175 16 8 7.8 4.3 | 9.0 48.2 190 14 7 9.0 5.0
9000 10.5 50.9 165 14 7 8.2 4.5 | 11.7 53.1 190 12 6 9.0 4.9
8000 13.7 56.7 150 12 6 9.0 4.9 | 14.3 57.7 190 10 5 9.1 5.0
7500 14.8 58.6 150 10 5 7.9 4.3 | 16.4 61.5 195 7 4 8.6 4.7
7000 16.0 60.8 150 9 5 8.4 4.6 | 17.4 63.3 205 5 3 7.5 4.1
6500 17.3 63.1 155 8 4 9.2 5.0 | 18.8 65.8 220 4 2 10.3 5.6
6000 18.7 65.7 155 8 4 9.3 5.1 | 20.2 68.4 240 4 2 9.7 5.3
5500 20.2 68.4 160 8 4 10.7 5.9 | 21.6 70.9 245 4 2 9.6 5.3
5000 21.7 71.1 160 7 4 9.7 5.3 | 23.1 73.6 250 4 2 10.0 5.5
4750 22.4 72.3 165 7 4 9.8 5.4 | 23.8 74.8 260 5 2 10.1 5.5
4500 23.1 73.6 165 7 4 10.4 5.7 | 24.6 76.3 260 5 2 9.6 5.3
4250 23.9 75.0 165 7 3 10.6 5.8 | 25.3 77.5 260 4 2 9.8 5.4
4000 24.7 76.5 170 6 3 9.8 5.4 | 26.0 78.8 260 4 2 9.2 5.1
3750 25.5 77.9 170 6 3 12.7 7.0 | 26.7 80.1 265 5 2 10.2 5.6
3500 26.6 79.9 170 6 3 16.8 9.2 | 27.6 81.7 265 5 2 12.0 6.6
3400 26.6 79.9 170 6 3 16.8 9.2 | 27.6 81.7 265 5 2 12.0 6.6
3300 27.8 82.0 170 6 3 15.0 8.2 | 28.4 83.1 265 5 2 11.0 6.0
3200 27.8 82.0 170 6 3 15.0 8.2 | 28.4 83.1 265 5 2 11.0 6.0
3100 27.8 82.0 170 6 3 15.0 8.2 | 28.4 83.1 265 5 2 11.0 6.0
3000 29.0 84.2 170 6 3 20.8 11.4 | 29.3 84.7 265 5 2 14.1 7.7
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page