002
UXUS97 KBOI 171311
SRGBOI
SOARING FORECAST
NATIONAL WEATHER SERVICE BOISE, IDAHO
711 AM MDT FRIDAY, APRIL 17, 2026
THIS FORECAST IS FOR FRIDAY, APRIL 17, 2026:
IF THE TRIGGER TEMPERATURE OF 47.2 F/8.4 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................... 53.0 F/12.1 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 SATURDAY 04/18..... GOOD
WAVE SOARING INDEX............................. NOT AVAILABLE
REMARKS...
SUNRISE/SUNSET.................... 06:58:13 / 20:30:26 MDT
TOTAL POSSIBLE SUNSHINE........... 13 HR 32 MIN 13 SEC (812 MIN 13 SEC)
ALTITUDE OF SUN AT 13:44:20 MDT... 55.75 DEGREES
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 04/17/2026 AT 0600 MDT
FREEZING LEVEL.................. ENTIRE AIRMASS BELOW 32 F / 0 C
CONVECTIVE CONDENSATION LEVEL... 12895 FT MSL (12895 FT AGL)
LIFTED CONDENSATION LEVEL....... 8154 FT MSL (8154 FT AGL)
LIFTED INDEX.................... +8.0
K INDEX......................... -9.2
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 * * * * * *
04/17/2026 AT 0900 MDT | 04/17/2026 AT 1200 MDT
|
CAPE... +4.8 LI... +10.6 | CAPE... +11.7 LI... +9.9
CINH... -13.5 K INDEX... -13.6 | CINH... -0.3 K INDEX... -11.9
|
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 -53.9 -65.0 315 45 23 -1.0 -0.5 | -54.6 -66.3 315 53 27 -1.8 -1.0
38000 -54.4 -65.9 315 50 26 -0.5 -0.3 | -55.4 -67.7 315 59 30 0.2 0.1
36000 -54.7 -66.5 325 57 29 -0.5 -0.3 | -55.3 -67.5 320 61 32 0.3 0.1
34000 -55.0 -67.0 330 63 33 -1.2 -0.6 | -55.1 -67.2 320 64 33 -0.2 -0.1
32000 -52.1 -61.8 330 67 35 5.7 3.1 | -51.9 -61.4 325 69 35 5.9 3.3
30000 -48.7 -55.7 330 71 36 5.7 3.1 | -48.4 -55.1 325 73 38 6.1 3.3
28000 -44.5 -48.1 330 70 36 7.1 3.9 | -44.1 -47.4 325 73 38 7.3 4.0
26000 -40.3 -40.5 330 68 35 6.4 3.5 | -39.8 -39.6 325 71 37 6.3 3.4
24000 -36.4 -33.5 330 64 33 6.5 3.6 | -35.6 -32.1 325 65 34 6.3 3.4
22000 -31.7 -25.1 330 59 30 7.3 4.0 | -31.5 -24.7 325 59 30 7.0 3.9
20000 -27.6 -17.7 330 54 28 6.1 3.3 | -27.3 -17.1 330 53 27 6.9 3.8
18000 -24.1 -11.4 330 47 24 4.1 2.2 | -23.2 -9.8 330 45 23 6.1 3.3
16000 -22.1 -7.8 325 35 18 3.0 1.6 | -20.0 -4.0 325 37 19 3.6 2.0
14000 -19.3 -2.7 325 26 14 5.5 3.0 | -18.6 -1.5 315 27 14 3.5 1.9
12000 -16.1 3.0 320 21 11 4.5 2.4 | -15.2 4.6 310 20 10 6.6 3.6
10000 -13.8 7.2 315 14 7 5.0 2.7 | -12.8 9.0 310 12 6 4.5 2.5
9000 -11.9 10.6 310 13 7 7.2 3.9 | -11.0 12.2 305 9 5 6.3 3.5
8000 -9.1 15.6 310 9 5 7.7 4.2 | -8.5 16.7 300 7 4 7.3 4.0
7500 -7.9 17.8 310 8 4 9.8 5.4 | -7.3 18.9 300 6 3 9.6 5.2
7000 -6.6 20.1 310 7 4 7.5 4.1 | -6.1 21.0 300 5 3 7.8 4.3
6500 -5.5 22.1 310 7 4 7.8 4.3 | -5.0 23.0 295 5 2 8.4 4.6
6000 -4.2 24.4 310 6 3 9.1 5.0 | -3.5 25.7 290 5 2 9.8 5.4
5500 -2.9 26.8 315 6 3 8.6 4.7 | -2.3 27.9 290 5 2 10.1 5.6
5000 -1.7 28.9 315 5 3 7.2 3.9 | -0.6 30.9 290 5 2 9.6 5.3
4750 -1.2 29.8 315 5 2 6.7 3.7 | 0.1 32.2 290 5 2 9.4 5.2
4500 -0.7 30.7 315 4 2 6.5 3.6 | 0.8 33.4 290 5 2 10.2 5.6
4250 -0.3 31.5 310 3 2 5.2 2.9 | 1.6 34.9 285 4 2 10.4 5.7
4000 0.1 32.2 310 2 1 4.1 2.3 | 2.4 36.3 285 4 2 10.3 5.7
3750 0.4 32.7 310 2 1 5.8 3.2 | 3.1 37.6 285 4 2 10.0 5.5
3500 0.8 33.4 300 2 1 7.1 3.9 | 3.9 39.0 285 4 2 12.2 6.7
3400 0.8 33.4 300 2 1 7.1 3.9 | 3.9 39.0 285 4 2 12.2 6.7
3300 1.3 34.3 295 1 1 5.1 2.8 | 5.0 41.0 285 4 2 17.2 9.4
3200 1.3 34.3 295 1 1 5.1 2.8 | 5.0 41.0 285 4 2 17.2 9.4
3100 1.3 34.3 295 1 1 5.1 2.8 | 5.0 41.0 285 4 2 17.2 9.4
3000 1.7 35.1 280 1 1 9.9 5.4 | 6.1 43.0 285 4 2 8.1 4.4
2900 M M M M M M M | M M M M M M M
04/17/2026 AT 1500 MDT | 04/17/2026 AT 1800 MDT
|
CAPE... +16.0 LI... +9.0 | CAPE... 0.0 LI... +9.3
CINH... -0.5 K INDEX... -5.8 | CINH... -0.2 K INDEX... -9.2
|
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 -55.6 -68.1 315 60 31 -1.8 -1.0 | -56.6 -69.9 315 61 31 -2.4 -1.3
38000 -56.2 -69.2 315 66 34 1.0 0.5 | -57.4 -71.3 315 67 34 1.2 0.7
36000 -55.6 -68.1 320 70 36 1.0 0.6 | -56.5 -69.7 320 73 38 1.3 0.7
34000 -55.0 -67.0 325 75 39 1.3 0.7 | -55.7 -68.3 320 79 41 2.6 1.4
32000 -51.7 -61.1 325 77 40 5.9 3.3 | -51.7 -61.1 325 80 41 7.1 3.9
30000 -48.1 -54.6 325 79 41 6.2 3.4 | -47.4 -53.3 330 82 42 7.1 3.9
28000 -43.9 -47.0 325 76 39 7.1 3.9 | -43.2 -45.8 330 74 38 6.8 3.7
26000 -39.2 -38.6 325 71 37 6.5 3.6 | -38.7 -37.7 330 66 34 6.5 3.5
24000 -35.3 -31.5 330 65 33 6.4 3.5 | -34.8 -30.6 335 57 29 6.4 3.5
22000 -31.1 -24.0 330 59 31 7.3 4.0 | -30.5 -22.9 335 51 27 7.3 4.0
20000 -26.8 -16.2 335 54 28 6.9 3.8 | -26.0 -14.8 340 47 24 7.8 4.3
18000 -22.7 -8.9 335 48 24 6.2 3.4 | -21.4 -6.5 340 43 22 6.8 3.8
16000 -18.9 -2.0 330 39 20 5.5 3.0 | -17.6 0.3 335 37 19 6.1 3.3
14000 -17.0 1.4 320 29 15 1.4 0.8 | -14.4 6.1 330 29 15 4.1 2.3
12000 -14.8 5.4 310 20 10 4.7 2.6 | -12.5 9.5 320 21 11 3.6 1.9
10000 -11.6 11.1 300 12 6 5.6 3.1 | -9.8 14.4 320 15 8 5.6 3.1
9000 -9.2 15.4 300 8 4 7.9 4.3 | -7.4 18.7 320 12 6 7.5 4.1
8000 -7.0 19.4 300 6 3 7.2 4.0 | -5.2 22.6 320 10 5 7.7 4.2
7500 -5.7 21.7 305 5 3 10.4 5.7 | -3.8 25.2 325 9 5 9.5 5.2
7000 -4.4 24.1 305 5 3 8.8 4.8 | -2.7 27.1 325 8 4 7.7 4.2
6500 -3.3 26.1 305 5 3 8.1 4.5 | -1.8 28.8 330 7 4 6.6 3.6
6000 -1.7 28.9 300 5 3 10.1 5.5 | -0.5 31.1 330 7 3 8.9 4.9
5500 -0.4 31.3 300 5 3 10.1 5.5 | 0.8 33.4 330 7 3 10.0 5.5
5000 1.3 34.3 300 5 3 10.6 5.8 | 2.4 36.3 330 6 3 10.5 5.7
4750 2.1 35.8 300 5 3 10.4 5.7 | 3.2 37.8 325 7 3 10.1 5.5
4500 2.8 37.0 300 5 3 9.8 5.4 | 3.9 39.0 325 6 3 9.1 5.0
4250 3.5 38.3 300 5 3 10.0 5.5 | 4.5 40.1 325 6 3 9.6 5.3
4000 4.3 39.7 300 5 3 10.6 5.8 | 5.3 41.5 325 6 3 10.8 5.9
3750 5.1 41.2 295 5 3 9.6 5.3 | 6.1 43.0 320 6 3 9.4 5.2
3500 5.8 42.4 300 5 2 12.3 6.7 | 6.8 44.2 325 5 3 9.5 5.2
3400 5.8 42.4 300 5 2 12.3 6.7 | 6.8 44.2 325 5 3 9.5 5.2
3300 7.0 44.6 295 5 2 19.1 10.5 | 7.6 45.7 325 6 3 12.9 7.1
3200 7.0 44.6 295 5 2 19.1 10.5 | 7.6 45.7 325 6 3 12.9 7.1
3100 7.0 44.6 295 5 2 19.1 10.5 | 7.6 45.7 325 6 3 12.9 7.1
3000 8.1 46.6 295 5 3 6.4 3.5 | 8.4 47.1 320 6 3 6.1 3.3
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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