Soaring Guidance
Issued by NWS Grand Junction, CO

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UXUS97 KGJT 101306
SRGGJT

Soaring Forecast
National Weather Service Grand Junction, Colorado
706 AM MDT Friday, October 10, 2025

This forecast is for Friday, October 10, 2025:

If the trigger temperature of 66.6 F/19.2 C is reached...then
   Thermal Soaring Index....................... Poor
   Maximum rate of lift........................ 178 ft/min (0.9 m/s)
   Maximum height of thermals.................. 10555 ft MSL (4947 ft AGL)

Forecast maximum temperature................... 68.0 F/20.5 C
Time of trigger temperature.................... 1245 MDT
Time of overdevelopment........................ None
Middle/high clouds during soaring window....... Broken/overcast opaque middle
Surface winds during soaring window............ 20 mph or less
Height of the -3 thermal index................. 7442 ft MSL (1834 ft AGL)
Thermal soaring outlook for Saturday 10/11..... Poor

Wave Soaring Index............................. Not available

Remarks...

Sunrise/Sunset.................... 07:19:25 / 18:42:33 MDT
Total possible sunshine........... 11 hr 23 min 8 sec (683 min 8 sec)
Altitude of sun at 13:00:59 MDT... 43.93 degrees

Upper air data from rawinsonde observation taken on 10/10/2025 at 0600 MDT

Freezing level.................. 13524 ft MSL (7916 ft AGL)
Convective condensation level... 10418 ft MSL (4810 ft AGL)
Lifted condensation level....... 10479 ft MSL (4871 ft AGL)
Lifted index.................... +1.1
K index......................... +28.2

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
--------------------------------------------------------------------------------
 50000  -66.3 -87.3   245   56   29   4.4   2.4      M     M       M      M    M
 45000  -59.2 -74.6   245   79   41   5.6   3.1      M     M       M      M    M
 40000  -50.9 -59.6   245   95   49   6.0   3.3      M     M       M      M    M
 38000  -47.3 -53.1   240   89   46   5.9   3.3      M     M       M      M    M
 36000  -43.7 -46.7   240   83   43   5.9   3.3      M     M       M      M    M
 34000  -39.8 -39.6   235   73   38   5.8   3.2      M     M       M      M    M
 32000  -36.3 -33.3   225   63   33   5.9   3.2      M     M       M      M    M
 30000  -31.8 -25.2   225   56   29   8.2   4.5   43.6 110.5    17.9      M    M
 29000  -29.4 -20.9   225   54   28   8.3   4.5   43.1 109.5    17.7      M    M
 28000  -26.9 -16.4   230   51   26   8.3   4.6   42.6 108.7    17.5      M    M
 27000  -24.7 -12.5   230   49   25   7.5   4.1   41.7 107.1    17.0      M    M
 26000  -22.4  -8.3   235   47   24   7.5   4.1   40.8 105.5    16.5      M    M
 25000  -20.2  -4.4   235   45   23   7.4   4.1   40.1 104.1    16.0      M    M
 24000  -18.1  -0.6   240   43   22   6.6   3.6   39.0 102.3    15.4      M    M
 23000  -16.2   2.8   235   39   20   6.6   3.6   37.8 100.1    14.5      M    M
 22000  -14.3   6.3   230   36   18   6.6   3.6   36.7  98.1    13.7      M    M
 21000  -12.5   9.5   230   33   17   6.2   3.4   35.5  95.9    12.8      M    M
 20000  -10.7  12.7   230   32   16   6.2   3.4   34.2  93.6    11.7      M    M
 19500   -9.4  15.1   230   31   16   6.3   3.4   33.3  92.0    11.0      M    M
 19000   -8.5  16.7   230   30   15   5.5   3.0   32.7  90.9    10.5      M    M
 18500   -7.7  18.1   230   28   15   5.3   2.9   32.0  89.5     9.8      M    M
 18000   -7.0  19.4   230   27   14   5.3   2.9   31.2  88.2     9.2      M    M
 17500   -6.3  20.7   225   25   13   4.7   2.6   30.4  86.7     8.5      M    M
 17000   -5.6  21.9   225   23   12   4.8   2.6   29.5  85.2     7.7      M    M
 16500   -4.9  23.2   225   22   11   5.5   3.0   28.8  83.8     7.0      M    M
 16000   -4.1  24.6   225   21   11   5.6   3.1   28.1  82.5     6.4      M    M
 15500   -3.3  26.1   225   20   10   5.6   3.1   27.4  81.3     5.8      M    M
 15000   -2.5  27.5   225   20   10   5.6   3.1   26.7  80.0     5.2      M    M
 14500   -1.7  28.9   225   19   10   5.6   3.1   26.0  78.8     4.6      M    M
 14000   -0.8  30.6   225   19   10   6.2   3.4   25.4  77.7     4.0      M    M
 13500    0.1  32.2   225   19   10   6.2   3.4   24.8  76.6     3.4      M    M
 13000    1.0  33.8   220   19   10   6.1   3.3   24.2  75.6     2.8      M    M
 12500    1.8  35.2   220   19   10   6.1   3.4   23.6  74.5     2.3      M    M
 12000    2.7  36.9   220   19   10   6.1   3.4   23.0  73.5     1.7      M    M
 11500    3.6  38.5   220   19   10   6.1   3.4   22.5  72.4     1.1      M    M
 11000    4.4  39.9   215   18    9   6.2   3.4   21.9  71.4     0.5      M    M
 10500    5.3  41.5   215   17    9   6.7   3.7   21.3  70.4    -0.0    376  1.9
 10250    5.8  42.4   215   17    9   7.6   4.1   21.1  70.1    -0.2    352  1.8
 10000    6.4  43.5   215   16    8   7.4   4.0   21.0  69.7    -0.4    329  1.7
  9750    6.9  44.4   210   16    8   7.3   4.0   20.8  69.4    -0.6    306  1.6
  9500    7.4  45.3   210   15    8   7.4   4.1   20.6  69.0    -0.8    282  1.4
  9250    8.0  46.4   210   15    8   7.2   3.9   20.4  68.7    -1.0    259  1.3
  9000    8.5  47.3   205   14    7   6.7   3.7   20.2  68.3    -1.2    237  1.2
  8750    9.0  48.2   205   14    7   6.7   3.7   19.9  67.9    -1.5    215  1.1
  8500    9.5  49.1   200   13    7   6.7   3.7   19.7  67.5    -1.7    193  1.0
  8250    9.9  49.8   200   13    7   6.8   3.7   19.5  67.1    -2.0    170  0.9
  8000   10.4  50.7   195   13    7   6.5   3.5   19.2  66.6    -2.2    148  0.8
  7750   10.9  51.6   190   12    6   6.4   3.5   19.0  66.2    -2.5    128  0.6
  7500   11.3  52.3   185   12    6   5.8   3.2   18.7  65.7    -2.8    107  0.5
  7250   11.7  53.1   175   12    6   3.1   1.7   18.3  65.0    -3.2     89  0.5
  7000   11.8  53.2   170   13    7   3.6   2.0   17.8  64.0    -3.7     77  0.4
  6750   12.2  54.0   165   13    7   5.7   3.1   17.4  63.4    -4.1     59  0.3
  6500   12.5  54.5   160   13    6   3.9   2.2   17.1  62.7    -4.5     41  0.2
  6250   12.7  54.9   155   11    6   1.6   0.9   16.5  61.8    -5.1     28  0.1
  6000   12.9  55.2   150    9    5   4.5   2.4   16.0  60.8    -5.6     15  0.1
  5750   13.3  55.9   145    8    4   6.9   3.8   15.7  60.3    -5.9      M    M
  5500      M     M     M    M    M     M     M      M     M       M      M    M
  5250      M     M     M    M    M     M     M      M     M       M      M    M
  5000      M     M     M    M    M     M     M      M     M       M      M    M

 * * * * * * Numerical weather prediction model forecast data valid * * * * * *

           10/10/2025 at 0900 MDT          |       10/10/2025 at 1200 MDT
                                           |
CAPE...    +0.9    LI...       -0.5        | CAPE...  +259.6    LI...       -1.5
CINH...    -1.3    K Index... +28.5        | CINH...    -2.3    K Index... +27.8
                                           |
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
--------------------------------------------------------------------------------
 50000 -67.3 -89.1  250  52 27   3.3   1.8 | -67.0 -88.6  250  52 27   4.0   2.2
 45000 -60.3 -76.5  255  77 40   7.0   3.8 | -59.6 -75.3  255  75 39   6.3   3.5
 40000 -50.3 -58.5  250  79 41   4.6   2.5 | -50.3 -58.5  245  82 42   5.0   2.7
 38000 -47.5 -53.5  245  69 36   4.6   2.5 | -47.3 -53.1  240  73 37   5.0   2.7
 36000 -44.7 -48.5  240  61 31   4.3   2.4 | -44.4 -47.9  230  64 33   4.7   2.6
 34000 -40.5 -40.9  235  55 28   7.5   4.1 | -40.0 -40.0  225  58 30   7.6   4.1
 32000 -35.9 -32.6  230  50 26   7.3   4.0 | -35.5 -31.9  220  52 27   7.4   4.0
 30000 -31.0 -23.8  235  45 23   8.5   4.7 | -30.7 -23.3  220  48 24   8.3   4.5
 29000 -28.5 -19.3  235  42 22   8.5   4.7 | -28.2 -18.8  225  46 23   8.3   4.6
 28000 -25.9 -14.6  235  39 20   8.2   4.5 | -25.7 -14.3  225  44 22   8.0   4.4
 27000 -23.1  -9.6  235  36 19   7.6   4.2 | -23.1  -9.6  230  40 20   7.0   3.8
 26000 -20.8  -5.4  240  34 17   7.6   4.2 | -21.0  -5.8  230  37 19   7.0   3.9
 25000 -18.6  -1.5  240  31 16   7.2   4.0 | -18.9  -2.0  230  33 17   6.9   3.8
 24000 -16.7   1.9  240  30 15   6.2   3.4 | -17.1   1.2  230  31 16   6.3   3.5
 23000 -14.9   5.2  240  29 15   6.3   3.4 | -15.2   4.6  230  28 14   6.3   3.5
 22000 -13.1   8.4  240  27 14   6.1   3.3 | -13.4   7.9  230  25 13   6.1   3.3
 21000 -11.4  11.5  235  27 14   5.9   3.2 | -11.7  10.9  230  25 13   5.6   3.1
 20000  -9.7  14.5  230  28 14   5.9   3.2 | -10.0  14.0  230  25 13   5.6   3.1
 19500  -8.8  16.2  230  28 15   5.9   3.2 |  -9.2  15.4  235  24 13   5.6   3.0
 19000  -8.0  17.6  230  29 15   5.5   3.0 |  -8.3  17.1  235  25 13   6.5   3.6
 18500  -7.2  19.0  230  29 15   5.6   3.1 |  -7.4  18.7  235  25 13   6.4   3.5
 18000  -6.4  20.5  230  29 15   5.7   3.1 |  -6.5  20.3  235  26 13   6.4   3.5
 17500  -5.6  21.9  230  29 15   5.8   3.2 |  -5.5  22.1  235  26 13   6.4   3.5
 17000  -4.7  23.5  230  29 15   5.9   3.2 |  -4.6  23.7  235  26 13   6.5   3.6
 16500  -3.9  25.0  230  29 15   5.7   3.1 |  -3.8  25.2  235  26 13   5.5   3.0
 16000  -3.1  26.4  230  29 15   5.7   3.1 |  -3.0  26.6  235  26 13   5.6   3.1
 15500  -2.2  28.0  230  28 15   5.9   3.2 |  -2.2  28.0  235  26 13   5.8   3.2
 15000  -1.4  29.5  230  28 14   5.9   3.2 |  -1.3  29.7  235  26 13   5.8   3.2
 14500  -0.6  30.9  230  28 14   5.9   3.2 |  -0.5  31.1  235  26 13   5.9   3.2
 14000   0.3  32.5  230  27 14   5.8   3.2 |   0.4  32.7  235  25 13   6.0   3.3
 13500   1.1  34.0  225  27 14   5.9   3.2 |   1.2  34.2  235  25 13   6.0   3.3
 13000   1.9  35.4  225  26 13   6.0   3.3 |   2.1  35.8  235  25 13   5.9   3.2
 12500   2.8  37.0  220  25 13   5.9   3.3 |   2.9  37.2  230  25 13   5.9   3.3
 12000   3.6  38.5  215  24 12   5.6   3.1 |   3.7  38.7  230  24 12   6.1   3.4
 11500   4.4  39.9  215  23 12   5.6   3.1 |   4.6  40.3  230  23 12   6.1   3.4
 11000   5.2  41.4  210  21 11   5.8   3.2 |   5.4  41.7  225  23 12   5.9   3.3
 10500   6.0  42.8  210  20 10   5.8   3.2 |   6.3  43.3  220  22 11   5.9   3.2
 10250   6.5  43.7  210  20 10   6.4   3.5 |   6.7  44.1  220  21 11   5.3   2.9
 10000   6.9  44.4  205  19 10   6.7   3.7 |   7.1  44.8  220  20 10   5.9   3.2
  9750   7.4  45.3  205  19 10   6.6   3.6 |   7.5  45.5  215  19 10   6.5   3.6
  9500   7.9  46.2  200  18  9   6.8   3.7 |   7.9  46.2  210  18  9   6.5   3.5
  9250   8.4  47.1  200  18  9   8.0   4.4 |   9.1  48.4  205  17  9   7.3   4.0
  9000   9.0  48.2  195  17  9   7.1   3.9 |   9.5  49.1  200  16  8   4.8   2.6
  8750   9.8  49.6  190  16  8   5.8   3.2 |   9.9  49.8  195  15  8   6.0   3.3
  8500  10.2  50.4  185  16  8   6.1   3.3 |  10.3  50.5  195  14  7   7.3   4.0
  8250  10.7  51.3  180  16  8   5.8   3.2 |  10.9  51.6  190  13  7   7.3   4.0
  8000  11.1  52.0  180  15  8   4.6   2.5 |  11.4  52.5  185  12  6   6.2   3.4
  7750  11.4  52.5  175  14  7   4.5   2.5 |  11.8  53.2  180  11  6   6.4   3.5
  7500  11.7  53.1  170  14  7   5.0   2.7 |  12.3  54.1  180  10  5   6.9   3.8
  7250  12.1  53.8  165  14  7   4.8   2.7 |  12.8  55.0  175  10  5   6.8   3.7
  7000  12.4  54.3  160  14  7   3.5   1.9 |  13.3  55.9  175   9  5   8.2   4.5
  6750  12.6  54.7  160  11  6   3.3   1.8 |  14.0  57.2  175   8  4   9.1   5.0
  6500  12.9  55.2  155  10  5   4.2   2.3 |  14.6  58.3  170   7  4   9.1   5.0
  6250  13.2  55.8  150   8  4   3.8   2.1 |  15.3  59.5  170   7  4   8.4   4.6
  6000  13.4  56.1  145   9  5   3.9   2.1 |  15.9  60.6  170   6  3  11.0   6.0
  5750  13.7  56.7  135   7  3   4.5   2.5 |  17.0  62.6  170   5  3  17.9   9.8
  5500  14.0  57.2  115   4  2   3.3   1.8 |  18.0  64.4  160   5  3   6.2   3.4
  5250     M     M    M   M  M     M     M |     M     M    M   M  M     M     M
  5000     M     M    M   M  M     M     M |     M     M    M   M  M     M     M

           10/10/2025 at 1500 MDT          |       10/10/2025 at 1800 MDT
                                           |
CAPE...  +312.5    LI...       -1.5        | CAPE...  +288.1    LI...       -1.0
CINH...   -10.5    K Index... +29.0        | CINH...   -14.5    K Index... +28.6
                                           |
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
--------------------------------------------------------------------------------
 50000 -67.5 -89.5  250  54 28   4.4   2.4 | -67.4 -89.3  250  51 26   4.3   2.3
 45000 -59.4 -74.9  255  76 39   6.6   3.6 | -60.0 -76.0  255  72 37   6.7   3.7
 40000 -49.9 -57.8  245  82 42   4.4   2.4 | -49.8 -57.6  245  84 43   4.7   2.6
 38000 -47.3 -53.1  240  74 38   4.3   2.4 | -47.0 -52.6  245  73 38   4.7   2.6
 36000 -44.7 -48.5  235  67 34   3.9   2.1 | -44.2 -47.6  235  64 33   4.4   2.4
 34000 -40.1 -40.2  230  59 30   8.3   4.6 | -39.9 -39.8  235  55 28   7.6   4.2
 32000 -35.1 -31.2  225  51 26   8.1   4.5 | -35.3 -31.5  235  47 24   7.4   4.1
 30000 -30.2 -22.4  220  47 24   8.1   4.4 | -30.5 -22.9  235  42 22   8.2   4.5
 29000 -27.8 -18.0  220  46 24   8.1   4.5 | -28.1 -18.6  230  41 21   8.2   4.5
 28000 -25.4 -13.7  225  44 23   7.8   4.3 | -25.6 -14.1  230  39 20   8.0   4.4
 27000 -23.4 -10.1  225  40 21   6.7   3.7 | -23.6 -10.5  230  36 19   6.8   3.8
 26000 -20.9  -5.6  225  34 18   6.8   3.7 | -21.0  -5.8  230  32 17   6.9   3.8
 25000 -18.9  -2.0  230  30 15   6.7   3.7 | -19.0  -2.2  230  30 15   6.9   3.8
 24000 -17.0   1.4  225  27 14   6.5   3.6 | -17.0   1.4  230  27 14   6.7   3.7
 23000 -15.0   5.0  225  24 13   6.5   3.6 | -15.1   4.8  230  24 13   6.8   3.7
 22000 -13.1   8.4  220  22 11   6.4   3.5 | -13.1   8.4  225  22 11   6.6   3.6
 21000 -11.4  11.5  225  21 11   6.1   3.3 | -11.3  11.7  225  21 11   6.2   3.4
 20000  -9.6  14.7  225  20 10   6.1   3.4 |  -9.5  14.9  225  20 10   6.2   3.4
 19500  -8.7  16.3  230  20 10   6.2   3.4 |  -8.6  16.5  225  20 10   6.2   3.4
 19000  -7.9  17.8  230  20 10   5.4   3.0 |  -7.7  18.1  220  20 10   5.7   3.1
 18500  -7.1  19.2  230  20 10   5.4   3.0 |  -6.9  19.6  220  19 10   5.7   3.1
 18000  -6.3  20.7  235  20 10   5.3   2.9 |  -6.1  21.0  220  19 10   5.6   3.1
 17500  -5.5  22.1  235  21 11   5.0   2.8 |  -5.3  22.5  220  19 10   5.3   2.9
 17000  -4.8  23.4  235  21 11   5.0   2.7 |  -4.6  23.7  225  19 10   5.3   2.9
 16500  -4.1  24.6  235  21 11   5.4   2.9 |  -3.8  25.2  225  19 10   5.3   2.9
 16000  -3.3  26.1  235  21 11   5.3   2.9 |  -3.1  26.4  225  19 10   5.3   2.9
 15500  -2.5  27.5  235  22 11   5.3   2.9 |  -2.3  27.9  225  18  9   5.2   2.8
 15000  -1.8  28.8  235  21 11   5.4   2.9 |  -1.6  29.1  225  18  9   5.1   2.8
 14500  -1.0  30.2  230  21 11   5.5   3.0 |  -0.8  30.6  225  18  9   5.1   2.8
 14000  -0.2  31.6  230  21 11   5.8   3.2 |  -0.1  31.8  225  18  9   5.1   2.8
 13500   0.7  33.3  230  21 11   5.9   3.2 |   0.6  33.1  225  18  9   5.1   2.8
 13000   1.5  34.7  225  21 11   6.4   3.5 |   1.4  34.5  220  18  9   6.3   3.5
 12500   2.4  36.3  225  20 10   6.4   3.5 |   2.3  36.1  220  17  9   6.2   3.4
 12000   3.4  38.1  220  20 10   7.1   3.9 |   3.2  37.8  220  17  9   6.2   3.4
 11500   4.4  39.9  220  19 10   7.1   3.9 |   4.1  39.4  220  16  8   6.1   3.4
 11000   5.4  41.7  215  18  9   7.0   3.8 |   5.0  41.0  215  16  8   6.7   3.7
 10500   6.4  43.5  210  17  9   6.9   3.8 |   6.0  42.8  215  15  8   7.0   3.8
 10250   6.8  44.2  210  17  9   4.8   2.6 |   6.5  43.7  215  15  8   5.7   3.1
 10000   7.1  44.8  210  16  8   5.6   3.0 |   6.8  44.2  215  15  7   5.8   3.2
  9750   7.6  45.7  205  16  8   7.5   4.1 |   7.3  45.1  210  14  7   7.2   3.9
  9500   8.1  46.6  205  15  8   6.9   3.8 |   7.8  46.0  210  14  7   6.8   3.7
  9250   8.6  47.5  200  15  8   6.6   3.6 |   8.3  46.9  205  13  7   7.3   4.0
  9000   9.0  48.2  200  14  7   6.1   3.4 |   9.2  48.6  205  12  6   6.0   3.3
  8750   9.4  48.9  195  13  7   6.1   3.3 |   9.6  49.3  200  11  6   6.2   3.4
  8500  10.3  50.5  190  12  6   5.9   3.2 |  10.1  50.2  200  10  5   6.4   3.5
  8250  10.7  51.3  185  11  6   6.1   3.3 |  10.5  50.9  195  10  5   6.5   3.5
  8000  11.2  52.2  185  10  5   7.1   3.9 |  10.9  51.6  190   9  4   6.2   3.4
  7750  11.7  53.1  180   9  5   6.5   3.6 |  11.4  52.5  185   8  4   5.9   3.2
  7500  12.1  53.8  180   9  4   5.4   3.0 |  11.8  53.2  185   7  4   5.5   3.0
  7250  12.5  54.5  175   8  4   5.8   3.2 |  12.2  54.0  180   7  4   5.5   3.0
  7000  13.0  55.4  170   7  4   9.1   5.0 |  12.5  54.5  175   6  3   6.1   3.4
  6750  13.8  56.8  170   6  3   9.3   5.1 |  13.0  55.4  165   5  3   6.3   3.5
  6500  14.3  57.7  165   5  3   7.2   4.0 |  13.4  56.1  155   5  2   6.0   3.3
  6250  14.9  58.8  160   5  2   7.8   4.3 |  13.9  57.0  150   4  2   5.9   3.2
  6000  15.5  59.9  155   4  2  11.4   6.2 |  14.3  57.7  140   4  2   7.7   4.2
  5750  16.5  61.7  155   3  2  16.8   9.2 |  14.9  58.8  130   3  1  10.8   5.9
  5500  17.4  63.3  140   3  1   1.1   0.6 |  15.5  59.9  110   2  1   0.4   0.2
  5250     M     M    M   M  M     M     M |     M     M    M   M  M     M     M
  5000     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 Walker Field in Grand
Junction, Colorado at

                   North Latitude:  39 deg 07 min 00.001 sec
                   West Longitude: 108 deg 31 min 59.998 sec
                   Elevation: 4839 feet (1475 meters)

and may not be representative of other areas along the Western Slope of
Colorado.  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.  Comments and suggestions are welcome and should
be directed to one of the addresses or phone numbers shown at the bottom of this
page.  To expedite a response to comments, be sure to mention your interest in
the soaring forecast.

DEFINITIONS:

CAPE (Convective Available Potential Energy) - An integrated measure of the
     energy available for convective development, also known as the positive
     area on a thermodynamic diagram.  Units are Joules per kilogram.  Larger
     values are indicative of greater instability and the possibility of
     stronger convective activity, including thunderstorms.  Values around or
     greater than 1000 suggest the possibility of severe weather should
     convective activity develop.

CINH (Convective Inhibition) - An integrated measure of the amount of energy
     needed to initiate convective activity, also known as the negative area on
     a thermodynamic diagram.  Units are Joules per kilogram.  The more negative
     this number, the more energy is required to initiate convection.  This
     inhibitive energy can be overcome through surface heating, cooling aloft,
     lifting mechanisms (orographic, frontal, gravity waves, etc.)

Convective Condensation Level - The height to which an air parcel possessing the
     average saturation mixing ratio in the lowest 4000 feet of the airmass,
     if heated sufficiently from below, will rise dry adiabatically until it
     just becomes saturated.  It estimates the base of cumulus clouds that are
     produced by surface heating only.

Convection Temperature (ConvectionT) - The surface temperature required to make
     the airmass dry adiabatic up to the given level.  It can be considered a
     "trigger temperature" for that level.

Freezing Level - The height where the temperature is zero degrees Celsius.

Height of Stable Layer - The height (between 12,000 and 18,000 feet above
     mean sea level) where the smallest lapse rate exists.  The location and
     existence of this feature is important in the generation of mountain
     waves.

K Index - A measure of stability which combines the temperature difference
     between approximately 5,000 and 18,000 feet above the surface, the amount
     of moisture at approximately 5,000 feet above the surface, and a measure
     of the dryness at approximately 10,000 feet above the surface.  Larger
     positive numbers indicate more instability and a greater likelihood of
     thunderstorm development.  One interpretation of K index values regarding
     soaring in the western United States is given in WMO Technical Note 158
     and is reproduced in the following table:

          below -10    no or weak thermals
           -10 to 5    dry thermals or 1/8 cumulus with moderate thermals
            5 to 15    good soaring conditions
           15 to 20    good soaring conditions with occasional showers
           20 to 30    excellent soaring conditions, but increasing
                       probability of showers and thunderstorms
           above 30    more than 60 percent probability of thunderstorms

Lapse Rate - The change with height of the temperature. Negative values indicate
     inversions.

Lifted Condensation Level - The height to which an air parcel possessing the
     average dew point in the lowest 4000 feet of the airmass and the forecast
     maximum temperature must be lifted dry adiabatically to attain saturation.

Lifted Index (LI) - The difference between the environmental temperature at a
     level approximately 18,000 feet above the surface and the temperature of
     an air parcel lifted dry adiabatically from the surface to its lifted
     condensation level and then pseudoadiabatically thereafter to this same
     level.  The parcel`s initial temperature is the forecast maximum
     temperature and its dew point is the average dew point in the lowest 4000
     feet of the airmass.  Negative values are indicative of instability with
     positive values showing stable conditions.

Lift Rate - An experimental estimate of the strength of thermals.  It is
     computed the same way as the maximum rate of lift but uses the actual
     level rather than the maximum height of thermals in the calculation.
     Also, none of the empirical adjustments based on cloudiness and K-index
     are applied to these calculations.

Maximum Height of Thermals - The height where the dry adiabat through the
     forecast maximum temperature intersects the environmental temperature.

Maximum Rate of Lift - An estimate of the maximum strength of thermals.  It
     is computed from an empirical formula which combines the expected maximum
     height of thermals with the difference in the environmental temperatures
     between the maximum height of thermals and the temperature 4,000 feet
     above the ground.  After this computation, further empirical adjustments
     are made based on the value of the K-index and the amount and opacity of
     middle and high level cloudiness expected between the time of trigger
     temperature and the time of overdevelopment.

Middle/High Clouds - The amount and opacity of middle (altostratus, altocumulus)
     or high (cirrus, cirrostratus, cirrocumulus) clouds.  Broken means that
     between 60% and 90% of the sky is covered by the cloud, with overcast
     conditions occurring when more than 90% of the sky is covered by the cloud.
     Thin implies that the clouds are predominantly transparent, meaning that
     some sunlight is reaching the ground, in contrast to opaque which suggests
     that little sunlight is reaching the ground.

Potential Height of Wave - The minimum of the following two heights:
     1. Level above the height of stable layer (or 14,000 feet if none exists)
        where the wind direction changes by 30 degrees or more
     2. Level above the height of stable layer (or 14,000 feet if none exists)
        where the wind speed no longer increases with height

PVA/NVA - Positive vorticity advection (PVA)/negative vorticity advection (NVA)
     on the 500 millibar isobaric surface (approximately 18,000 feet above mean
     sea level).  Weak PVA has been shown to assist in mountain wave soaring.

Soaring Window - The time between the time the trigger temperature is reached
                 and the time of overdevelopment.

Thermal Index - The difference between the environmental temperature and the
     temperature at a particular level determined by following the dry adiabat
     through the forecast maximum temperature up to that level.  Negative values
     are indicative of thermal lift.

Thermal Soaring Index - An adjective rating (for sailplanes) based on the
     computed maximum rate of lift, and the wind speed and middle and high
     cloud cover expected during the soaring window (the time of the trigger
     temperature and the time of overdevelopment) according to the following:

                 Maximum rate of lift        Adjective Rating
                      >= 800 fpm                 Excellent
                 >= 400 and < 800 fpm              Good
                 >= 200 and < 400 fpm              Fair
                       < 200 fpm                   Poor

Time of Overdevelopment - The time one or more of the following phenomena,
     which essentially shut off thermal lift, is expected to occur:
     1. formation of broken to overcast convective cloud cover
     2. formation of scattered to numerous downbursts
     3. initiation of widespread precipitation

Time of Trigger Temperature - The time the surface temperature is expected to
     reach the trigger temperature.

Trigger Temperature - The surface temperature required to make the first 4000
     feet of the atmosphere dry adiabatic.

Wave Soaring Index - An empirical, adjective rating (for sailplanes) which
     attempts to combine a variety of phenomena important in mountain wave
     soaring into a single index number.  Objective points are assigned to
     these phenomena: wind speed and direction at 14,000 ft MSL, the static
     stability in the 12,000-18,000 ft MSL layer, the wind speed gradient above
     the stable layer, jet stream location and frontal and upper trough
     movements.

042613