643
UXUS97 KBOI 171306
SRGBOI
SOARING FORECAST
NATIONAL WEATHER SERVICE BOISE, IDAHO
606 AM MST WEDNESDAY, DECEMBER 17, 2025
THIS FORECAST IS FOR WEDNESDAY, DECEMBER 17, 2025:
IF THE TRIGGER TEMPERATURE OF 62.7 F/17.1 C IS REACHED...THEN
THERMAL SOARING INDEX....................... POOR
MAXIMUM RATE OF LIFT........................ 127 FT/MIN (0.6 M/S)
MAXIMUM HEIGHT OF THERMALS.................. 3297 FT MSL (436 FT AGL)
FORECAST MAXIMUM TEMPERATURE................... 54.0 F/12.7 C
TIME OF TRIGGER TEMPERATURE.................... NONE
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 THURSDAY 12/18..... FAIR
WAVE SOARING INDEX............................. NOT AVAILABLE
REMARKS...
SUNRISE/SUNSET.................... 08:12:51 / 17:09:34 MST
TOTAL POSSIBLE SUNSHINE........... 8 HR 56 MIN 43 SEC (536 MIN 43 SEC)
ALTITUDE OF SUN AT 12:41:13 MST... 22.39 DEGREES
UPPER AIR DATA FROM RAWINSONDE OBSERVATION TAKEN ON 12/17/2025 AT 0500 MST
FREEZING LEVEL.................. 9636 FT MSL (6775 FT AGL)
CONVECTIVE CONDENSATION LEVEL... 7625 FT MSL (4764 FT AGL)
LIFTED CONDENSATION LEVEL....... 5482 FT MSL (2621 FT AGL)
LIFTED INDEX.................... +6.0
K INDEX......................... +27.8
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 -52.3 -62.1 275 111 57 -9.3 -5.1 72.3 162.2 38.4 M M
38000 -55.6 -68.1 270 114 59 -0.3 -0.2 58.2 136.7 30.2 M M
36000 -61.6 -78.9 260 96 49 6.5 3.6 39.3 102.7 18.3 M M
34000 -55.5 -67.9 260 94 48 9.7 5.3 39.7 103.4 19.1 M M
32000 -49.9 -57.8 265 88 45 8.6 4.7 39.3 102.8 19.4 M M
30000 -44.2 -47.6 265 81 42 9.8 5.4 39.1 102.4 19.7 M M
28000 -38.6 -37.5 265 82 42 9.1 5.0 38.7 101.6 19.9 M M
26000 -33.1 -27.6 260 83 43 8.6 4.7 38.3 100.9 20.0 M M
24000 -28.2 -18.8 265 89 46 7.5 4.1 37.1 98.9 19.6 M M
22000 -23.5 -10.3 265 81 42 7.7 4.2 35.7 96.3 18.9 M M
20000 -19.0 -2.2 265 72 37 7.2 4.0 34.2 93.5 17.9 M M
18000 -14.3 6.3 260 67 34 7.2 3.9 32.0 89.5 16.4 M M
16000 -10.2 13.6 255 56 29 5.9 3.2 30.1 86.2 15.1 M M
14000 -7.0 19.4 270 53 27 5.5 3.0 27.4 81.3 12.8 M M
12000 -3.8 25.2 270 56 29 5.5 3.0 24.5 76.2 10.5 M M
10000 -0.6 30.9 255 60 31 5.6 3.0 21.7 71.1 7.9 M M
9000 1.0 33.8 255 54 28 5.5 3.0 20.4 68.7 6.7 M M
8000 2.6 36.7 245 53 27 5.4 3.0 19.0 66.3 5.4 M M
7500 3.5 38.3 245 48 25 8.7 4.8 18.5 65.3 4.9 M M
7000 5.0 41.0 245 43 22 6.7 3.7 18.6 65.4 5.0 M M
6500 5.7 42.3 245 38 20 7.5 4.1 17.8 64.0 4.2 M M
6000 6.9 44.4 240 34 17 8.3 4.6 17.6 63.6 4.1 M M
5500 8.2 46.8 235 29 15 8.3 4.5 17.4 63.3 3.9 M M
5000 9.4 48.9 230 24 13 6.8 3.7 17.2 62.9 3.7 M M
4750 9.8 49.6 225 23 12 3.7 2.0 16.8 62.2 3.3 M M
4500 10.1 50.2 220 21 11 5.2 2.8 16.3 61.4 2.9 M M
4250 10.5 50.9 215 18 9 6.2 3.4 16.1 60.9 2.6 M M
4000 11.0 51.8 205 15 8 6.9 3.8 15.8 60.5 2.4 M M
3750 11.4 52.5 195 13 7 3.3 1.8 15.6 60.0 2.1 M M
3500 11.4 52.5 180 10 5 -3.2 -1.7 14.8 58.6 1.3 M M
3400 11.1 52.0 155 9 4 -4.8 -2.6 13.7 56.7 0.3 M M
3300 11.1 52.0 155 9 4 -4.8 -2.6 13.7 56.7 0.3 M M
3200 10.6 51.1 125 9 5 -6.8 -3.7 12.6 54.7 -0.9 M M
3100 10.6 51.1 125 9 5 -6.8 -3.7 12.6 54.7 -0.9 M M
3000 10.6 51.1 125 9 5 -6.8 -3.7 12.6 54.7 -0.9 M M
2900 9.8 49.6 105 11 6 -14.0 -7.7 11.1 52.1 -2.4 M M
* * * * * * NUMERICAL WEATHER PREDICTION MODEL FORECAST DATA VALID * * * * * *
12/17/2025 AT 0800 MST | 12/17/2025 AT 1100 MST
|
CAPE... +99.4 LI... -1.3 | CAPE... +32.4 LI... +7.1
CINH... -25.0 K INDEX... +26.6 | CINH... -1.0 K INDEX... -2.1
|
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 -54.5 -66.1 275 103 53 0.6 0.3 | -51.2 -60.2 280 105 54 0.2 0.1
38000 -53.7 -64.7 275 103 53 2.3 1.2 | -50.9 -59.6 285 112 57 1.1 0.6
36000 -52.4 -62.3 275 99 51 2.3 1.2 | -50.2 -58.4 285 117 60 1.2 0.6
34000 -51.0 -59.8 270 96 49 4.2 2.3 | -49.5 -57.1 285 122 63 1.2 0.6
32000 -47.5 -53.5 270 103 53 5.8 3.2 | -46.9 -52.4 285 124 64 4.6 2.5
30000 -44.0 -47.2 270 110 57 6.3 3.5 | -44.2 -47.6 285 126 65 4.6 2.5
28000 -40.0 -40.0 270 112 58 6.7 3.7 | -41.1 -42.0 285 126 65 5.2 2.9
26000 -36.1 -33.0 270 110 57 5.8 3.2 | -38.0 -36.4 285 124 64 4.9 2.7
24000 -32.7 -26.9 270 96 49 5.8 3.2 | -34.6 -30.3 285 109 56 5.0 2.7
22000 -28.2 -18.8 265 84 43 6.9 3.8 | -31.4 -24.5 280 92 47 5.6 3.1
20000 -24.0 -11.2 260 79 40 7.3 4.0 | -27.6 -17.7 275 78 40 7.7 4.2
18000 -19.6 -3.3 255 77 40 8.2 4.5 | -23.0 -9.4 275 73 38 7.9 4.3
16000 -14.8 5.4 255 77 40 8.1 4.4 | -18.5 -1.3 275 72 37 7.0 3.8
14000 -10.5 13.1 260 79 41 7.1 3.9 | -15.4 4.3 280 68 35 4.9 2.7
12000 -6.8 19.8 265 76 39 6.1 3.3 | -12.8 9.0 275 65 34 4.4 2.4
10000 -3.0 26.6 275 63 33 6.7 3.7 | -10.0 14.0 280 64 33 5.8 3.2
9000 -1.3 29.7 280 57 30 5.6 3.1 | -8.6 16.5 285 58 30 4.7 2.6
8000 0.9 33.6 280 56 29 6.0 3.3 | -6.7 19.9 295 48 25 7.8 4.3
7500 1.9 35.4 280 55 28 8.7 4.8 | -5.5 22.1 295 46 24 6.9 3.8
7000 3.1 37.6 280 54 28 7.0 3.8 | -4.4 24.1 295 44 23 8.6 4.7
6500 4.2 39.6 275 52 27 9.6 5.3 | -3.1 26.4 300 43 22 10.7 5.9
6000 5.4 41.7 275 51 26 7.8 4.3 | -1.6 29.1 300 40 21 9.8 5.4
5500 6.5 43.7 275 47 24 7.4 4.1 | -0.2 31.6 300 41 21 9.2 5.1
5000 7.7 45.9 270 41 21 8.0 4.4 | 1.3 34.3 300 37 19 10.0 5.5
4750 8.3 46.9 270 38 20 8.2 4.5 | 2.0 35.6 300 36 19 9.6 5.3
4500 8.8 47.8 270 38 20 7.2 4.0 | 2.8 37.0 300 36 19 9.8 5.4
4250 9.3 48.7 270 33 17 6.1 3.3 | 3.5 38.3 300 32 17 10.2 5.6
4000 9.8 49.6 270 27 14 7.2 4.0 | 4.2 39.6 300 29 15 9.0 4.9
3750 10.2 50.4 270 26 13 3.0 1.7 | 4.9 40.8 300 29 15 9.0 4.9
3500 10.2 50.4 270 23 12 -3.2 -1.7 | 5.5 41.9 300 26 13 9.4 5.1
3400 10.2 50.4 270 23 12 -3.2 -1.7 | 5.5 41.9 300 26 13 9.4 5.1
3300 10.0 50.0 265 18 9 -1.9 -1.0 | 6.1 43.0 300 21 11 5.9 3.2
3200 10.0 50.0 265 18 9 -1.9 -1.0 | 6.1 43.0 300 21 11 5.9 3.2
3100 10.0 50.0 265 18 9 -1.9 -1.0 | 6.1 43.0 300 21 11 5.9 3.2
3000 9.7 49.5 265 13 7 -7.6 -4.2 | 6.3 43.3 300 20 10 -1.7 -0.9
2900 M M M M M M M | M M M M M M M
12/17/2025 AT 1400 MST | 12/17/2025 AT 1700 MST
|
CAPE... +47.3 LI... +9.3 | CAPE... +9.9 LI... +12.1
CINH... -1.4 K INDEX... -13.4 | CINH... -5.0 K INDEX... -18.0
|
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 -54.1 -65.4 285 119 61 -0.4 -0.2 | -57.9 -72.2 300 116 60 -1.9 -1.1
38000 -54.0 -65.2 290 132 68 2.1 1.2 | -57.9 -72.2 300 128 66 4.8 2.7
36000 -52.6 -62.7 300 150 77 2.1 1.1 | -54.5 -66.1 305 146 75 5.0 2.7
34000 -51.4 -60.5 305 168 87 3.2 1.8 | -51.5 -60.7 305 162 83 7.0 3.9
32000 -47.3 -53.1 305 170 87 7.1 3.9 | -46.8 -52.2 300 157 81 7.7 4.2
30000 -43.1 -45.6 300 171 88 7.0 3.8 | -42.2 -44.0 295 153 79 7.8 4.3
28000 -39.4 -38.9 295 160 83 6.1 3.3 | -37.7 -35.9 300 148 76 7.6 4.1
26000 -35.8 -32.4 295 150 77 6.0 3.3 | -33.3 -27.9 300 142 73 6.8 3.8
24000 -32.2 -26.0 290 139 72 6.0 3.3 | -29.3 -20.7 295 135 70 6.8 3.7
22000 -29.1 -20.4 290 122 63 3.9 2.1 | -25.7 -14.3 295 127 65 4.7 2.6
20000 -26.5 -15.7 295 104 54 5.0 2.7 | -23.4 -10.1 295 115 59 2.6 1.4
18000 -23.5 -10.3 295 86 44 5.7 3.1 | -21.6 -6.9 300 96 50 5.2 2.8
16000 -20.0 -4.0 290 73 37 6.1 3.3 | -18.4 -1.1 300 79 41 5.5 3.0
14000 -16.1 3.0 290 65 33 6.3 3.4 | -15.6 3.9 295 64 33 3.9 2.1
12000 -13.4 7.9 290 58 30 2.7 1.5 | -13.3 8.1 295 51 26 4.3 2.4
10000 -12.4 9.7 295 46 24 1.9 1.0 | -11.8 10.8 295 40 20 0.5 0.3
9000 -11.5 11.3 300 39 20 3.9 2.1 | -11.5 11.3 300 31 16 2.2 1.2
8000 -9.1 15.6 300 33 17 10.2 5.6 | -9.3 15.3 300 24 12 10.3 5.7
7500 -7.6 18.3 300 32 16 7.7 4.3 | -7.8 18.0 300 23 12 7.1 3.9
7000 -6.4 20.5 300 31 16 10.7 5.9 | -6.8 19.8 300 22 11 10.2 5.6
6500 -5.1 22.8 300 31 16 9.3 5.1 | -5.4 22.3 300 21 11 9.5 5.2
6000 -3.5 25.7 300 29 15 10.3 5.6 | -3.9 25.0 305 20 10 9.9 5.4
5500 -2.0 28.4 300 29 15 9.7 5.3 | -2.6 27.3 310 19 10 8.8 4.8
5000 -0.6 30.9 300 27 14 9.9 5.5 | -1.2 29.8 310 17 9 9.6 5.3
4750 0.2 32.4 300 27 14 10.1 5.6 | -0.4 31.3 315 17 9 9.4 5.2
4500 0.9 33.6 300 26 13 9.7 5.3 | 0.2 32.4 315 16 8 9.2 5.0
4250 1.6 34.9 300 24 12 9.4 5.2 | 0.9 33.6 315 14 7 8.8 4.8
4000 2.3 36.1 300 23 12 9.6 5.3 | 1.5 34.7 315 13 7 8.0 4.4
3750 3.1 37.6 300 22 11 9.8 5.4 | 2.1 35.8 320 12 6 9.2 5.1
3500 3.8 38.8 300 20 10 9.3 5.1 | 2.8 37.0 315 10 5 6.5 3.6
3400 3.8 38.8 300 20 10 9.3 5.1 | 2.8 37.0 315 10 5 6.5 3.6
3300 4.4 39.9 300 17 9 7.5 4.1 | 2.9 37.2 315 8 4 -2.8 -1.5
3200 4.4 39.9 300 17 9 7.5 4.1 | 2.9 37.2 315 8 4 -2.8 -1.5
3100 4.4 39.9 300 17 9 7.5 4.1 | 2.9 37.2 315 8 4 -2.8 -1.5
3000 4.9 40.8 300 15 8 7.7 4.2 | 2.8 37.0 320 7 3 7.0 3.9
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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