648
UXUS97 KBOI 301305
SRGBOI
SOARING FORECAST
NATIONAL WEATHER SERVICE BOISE, IDAHO
705 AM MDT THURSDAY, APRIL 30, 2026
THIS FORECAST IS FOR THURSDAY, APRIL 30, 2026:
IF THE TRIGGER TEMPERATURE OF 64.0 F/17.8 C IS REACHED...THEN
THERMAL SOARING INDEX....................... POOR
MAXIMUM RATE OF LIFT........................ 0 FT/MIN (0.0 M/S)
MAXIMUM HEIGHT OF THERMALS.................. 0 FT MSL (0 FT AGL)
FORECAST MAXIMUM TEMPERATURE................... 70.0 F/21.6 C
TIME OF TRIGGER TEMPERATURE.................... 1230 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................. NONE
THERMAL SOARING OUTLOOK FOR FRIDAY 05/01....... EXCELLENT
WAVE SOARING INDEX............................. NOT AVAILABLE
REMARKS...
SUNRISE/SUNSET.................... 06:38:14 / 20:45:49 MDT
TOTAL POSSIBLE SUNSHINE........... 14 HR 7 MIN 35 SEC (847 MIN 35 SEC)
ALTITUDE OF SUN AT 13:42:02 MDT... 60.02 DEGREES
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 04/30/2026 AT 0600 MDT
FREEZING LEVEL.................. ENTIRE AIRMASS BELOW 32 F / 0 C
CONVECTIVE CONDENSATION LEVEL... 11190 FT MSL (11190 FT AGL)
LIFTED CONDENSATION LEVEL....... 8693 FT MSL (8693 FT AGL)
LIFTED INDEX.................... -1.1
K INDEX......................... +16.7
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
--------------------------------------------------------------------------------
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *
04/30/2026 AT 0900 MDT | 04/30/2026 AT 1200 MDT
|
CAPE... 0.0 LI... +3.3 | CAPE... +11.1 LI... +2.6
CINH... 0.0 K INDEX... +16.5 | CINH... -13.0 K INDEX... +11.7
|
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 -55.0 -67.0 325 47 24 -0.4 -0.2 | -55.0 -67.0 325 38 20 -0.0 -0.0
38000 -54.6 -66.3 330 52 27 2.3 1.3 | -54.5 -66.1 330 43 22 1.9 1.0
36000 -53.1 -63.6 330 58 30 2.3 1.3 | -53.3 -63.9 330 53 27 1.9 1.0
34000 -51.6 -60.9 330 61 32 3.3 1.8 | -52.0 -61.6 330 59 30 3.6 2.0
32000 -49.7 -57.5 335 44 23 3.2 1.8 | -50.0 -58.0 330 44 23 3.4 1.9
30000 -47.4 -53.3 340 29 15 7.9 4.3 | -47.6 -53.7 330 31 16 7.5 4.1
28000 -42.9 -45.2 350 25 13 7.5 4.1 | -43.3 -45.9 340 26 13 7.2 3.9
26000 -38.3 -36.9 360 24 12 8.2 4.5 | -38.6 -37.5 355 23 12 8.6 4.7
24000 -33.4 -28.1 010 24 12 8.2 4.5 | -33.5 -28.3 005 22 12 8.6 4.7
22000 -28.1 -18.6 010 22 11 8.1 4.4 | -27.8 -18.0 010 21 11 8.4 4.6
20000 -23.4 -10.1 010 19 10 7.4 4.0 | -23.1 -9.6 015 19 10 7.5 4.1
18000 -19.1 -2.4 015 16 8 6.9 3.8 | -18.9 -2.0 020 18 9 6.6 3.6
16000 -15.2 4.6 030 13 7 5.4 3.0 | -14.7 5.5 025 15 7 6.8 3.7
14000 -11.9 10.6 055 12 6 5.0 2.7 | -11.0 12.2 045 9 5 4.9 2.7
12000 -8.6 16.5 065 9 5 7.4 4.0 | -8.3 17.1 090 9 5 6.5 3.6
10000 -3.9 25.0 075 5 3 8.5 4.6 | -3.9 25.0 095 8 4 8.5 4.6
9000 -1.4 29.5 110 4 2 8.2 4.5 | -1.4 29.5 110 6 3 8.1 4.4
8000 1.6 34.9 150 8 4 9.3 5.1 | 1.7 35.1 145 8 4 9.1 5.0
7500 2.6 36.7 150 10 5 5.0 2.7 | 2.7 36.9 150 9 4 5.7 3.1
7000 3.6 38.5 150 13 7 7.1 3.9 | 3.7 38.7 155 10 5 7.2 3.9
6500 4.5 40.1 150 18 9 5.7 3.1 | 4.8 40.6 160 12 6 7.9 4.3
6000 5.4 41.7 150 19 10 6.5 3.5 | 6.1 43.0 160 10 5 8.0 4.4
5500 6.4 43.5 150 21 11 6.2 3.4 | 7.2 45.0 165 10 5 9.4 5.2
5000 7.3 45.1 150 17 9 5.6 3.1 | 8.7 47.7 165 9 5 9.9 5.4
4750 7.7 45.9 155 17 9 5.6 3.1 | 9.4 48.9 165 9 5 9.9 5.4
4500 8.1 46.6 155 15 7 6.0 3.3 | 10.2 50.4 165 9 5 9.9 5.4
4250 8.5 47.3 150 11 6 3.5 1.9 | 10.9 51.6 170 9 4 10.0 5.5
4000 8.6 47.5 155 9 5 0.7 0.4 | 11.7 53.1 170 8 4 10.4 5.7
3750 8.7 47.7 155 7 4 4.1 2.3 | 12.4 54.3 170 8 4 9.4 5.2
3500 9.1 48.4 150 5 2 7.6 4.2 | 13.2 55.8 170 7 4 12.7 7.0
3400 9.1 48.4 150 5 2 7.6 4.2 | 13.2 55.8 170 7 4 12.7 7.0
3300 9.6 49.3 145 4 2 5.3 2.9 | 14.4 57.9 170 7 4 20.9 11.4
3200 9.6 49.3 145 4 2 5.3 2.9 | 14.4 57.9 170 7 4 20.9 11.4
3100 9.6 49.3 145 4 2 5.3 2.9 | 14.4 57.9 170 7 4 20.9 11.4
3000 10.1 50.2 145 4 2 11.7 6.4 | 15.6 60.1 170 7 4 5.6 3.1
2900 M M M M M M M | M M M M M M M
04/30/2026 AT 1500 MDT | 04/30/2026 AT 1800 MDT
|
CAPE... +32.4 LI... +1.7 | CAPE... +53.4 LI... +0.7
CINH... -3.5 K INDEX... +13.2 | CINH... -20.8 K INDEX... +16.7
|
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 -55.3 -67.5 320 34 18 -0.2 -0.1 | -56.2 -69.2 325 35 18 -1.1 -0.6
38000 -54.9 -66.8 325 38 19 2.2 1.2 | -55.9 -68.6 330 37 19 2.6 1.4
36000 -53.4 -64.1 330 45 23 2.2 1.2 | -54.1 -65.4 340 41 21 2.6 1.4
34000 -51.9 -61.4 330 49 25 4.3 2.3 | -52.4 -62.3 345 44 23 4.7 2.6
32000 -49.5 -57.1 335 41 21 4.1 2.2 | -49.7 -57.5 350 35 18 4.5 2.5
30000 -46.9 -52.4 340 33 17 6.1 3.3 | -46.8 -52.2 360 28 14 6.4 3.5
28000 -43.3 -45.9 340 27 14 6.0 3.3 | -43.1 -45.6 025 27 14 6.3 3.4
26000 -39.0 -38.2 350 23 12 8.7 4.7 | -38.8 -37.8 035 27 14 8.3 4.5
24000 -33.8 -28.8 360 22 11 8.6 4.7 | -33.9 -29.0 035 25 13 8.3 4.5
22000 -27.9 -18.2 005 19 10 8.7 4.8 | -28.1 -18.6 020 21 11 8.6 4.7
20000 -23.0 -9.4 015 17 9 8.0 4.4 | -23.0 -9.4 015 19 10 8.5 4.6
18000 -18.5 -1.3 020 16 8 6.4 3.5 | -18.2 -0.8 015 17 9 7.4 4.0
16000 -14.9 5.2 025 14 7 6.5 3.6 | -14.3 6.3 025 14 7 6.2 3.4
14000 -10.9 12.4 040 10 5 6.9 3.8 | -10.3 13.5 045 12 6 7.2 4.0
12000 -7.2 19.0 070 9 5 6.5 3.6 | -6.4 20.5 065 12 6 7.2 4.0
10000 -2.8 27.0 085 6 3 8.3 4.6 | -1.7 28.9 050 7 4 8.9 4.9
9000 -0.4 31.3 080 4 2 8.8 4.8 | 0.9 33.6 035 5 3 8.4 4.6
8000 3.1 37.6 090 1 1 11.2 6.2 | 4.2 39.6 005 5 2 10.8 5.9
7500 4.1 39.4 000 0 0 6.2 3.4 | 5.3 41.5 355 5 2 6.9 3.8
7000 5.5 41.9 000 0 0 9.6 5.2 | 6.8 44.2 350 5 2 9.9 5.4
6500 6.9 44.4 245 1 0 9.6 5.3 | 8.1 46.6 345 5 3 9.0 4.9
6000 8.4 47.1 250 1 0 9.9 5.4 | 9.6 49.3 340 5 3 9.7 5.3
5500 9.9 49.8 260 1 1 9.9 5.4 | 11.0 51.8 335 5 3 10.0 5.5
5000 11.4 52.5 260 1 1 11.0 6.0 | 12.6 54.7 335 5 3 10.0 5.5
4750 12.2 54.0 265 2 1 10.9 6.0 | 13.3 55.9 330 5 3 9.7 5.3
4500 13.0 55.4 265 2 1 9.7 5.3 | 14.0 57.2 330 5 3 9.7 5.3
4250 13.7 56.7 260 1 1 9.9 5.5 | 14.8 58.6 330 5 3 9.9 5.4
4000 14.5 58.1 265 2 1 11.3 6.2 | 15.5 59.9 325 5 3 10.4 5.7
3750 15.3 59.5 265 2 1 8.3 4.6 | 16.3 61.3 325 5 3 9.4 5.1
3500 15.9 60.6 265 1 1 11.4 6.2 | 16.9 62.4 325 5 2 10.0 5.5
3400 15.9 60.6 265 1 1 11.4 6.2 | 16.9 62.4 325 5 2 10.0 5.5
3300 17.2 63.0 265 2 1 24.9 13.7 | 17.8 64.0 325 5 3 14.5 7.9
3200 17.2 63.0 265 2 1 24.9 13.7 | 17.8 64.0 325 5 3 14.5 7.9
3100 17.2 63.0 265 2 1 24.9 13.7 | 17.8 64.0 325 5 3 14.5 7.9
3000 18.6 65.5 270 2 1 1.3 0.7 | 18.8 65.8 325 5 3 8.8 4.8
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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