Soaring Guidance
Issued by NWS Pueblo, CO

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000
UXUS97 KPUB 241138
SRGPUB

Soaring Forecast
National Weather Service Pueblo, Colorado
0438 MST Monday, November 24, 2014

This forecast is for Monday, November 24, 2014:

If the trigger temperature of 31.9 F/-0.1 C is reached...then
   Thermal Soaring Index....................... Poor
   Maximum rate of lift........................ 0 ft/min (0.0 m/s)
   Maximum height of thermals.................. 11299 ft MSL (4541 ft AGL)

Forecast maximum temperature................... 33.0 F/1.0 C
Time of trigger temperature.................... 1045 MST
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................. 8697 ft MSL (1939 ft AGL)
Thermal soaring outlook for Tuesday 11/25...... Fair

Wave Soaring Index............................. Poor
Wave Soaring Index trend (to 1700 MST)......... No change
Height of stable layer (12-18K ft MSL)......... None
Weak PVA/NVA (through 1700 MST)................ Neither
Potential height of wave....................... 28144 ft MSL (21386 ft AGL)
Wave soaring outlook for Tuesday 11/25......... Poor

Remarks...

Sunrise/Sunset.................... 06:51:41 / 16:39:45 MST
Total possible sunshine........... 9 hr 48 min 5 sec (588 min 5 sec)
Altitude of sun at 11:45:52 MST... 30.46 degrees

Upper air data from numerical model forecast valid on 11/24/2014 at 0500 MST

Freezing level.................. Entire airmass below 32 F / 0 C
Convective condensation level... 15097 ft MSL (8339 ft AGL)
Lifted condensation level....... 13751 ft MSL (6993 ft AGL)
Lifted index.................... +2.1
K index......................... +1.9

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  -54.8 -66.6   275   24   12   2.7   1.5      M     M       M      M    M
 45000  -50.7 -59.3   275   30   16   2.7   1.5      M     M       M      M    M
 40000  -49.4 -56.9   290   37   19   0.5   0.3      M     M       M      M    M
 38000  -49.1 -56.4   295   40   20   0.1   0.1      M     M       M      M    M
 36000  -49.2 -56.6   300   39   20  -0.1  -0.0      M     M       M      M    M
 34000  -49.2 -56.6   305   38   20  -0.1  -0.0      M     M       M      M    M
 32000  -50.1 -58.2   305   39   20  -2.5  -1.4      M     M       M      M    M
 30000  -51.6 -60.9   310   41   21  -2.6  -1.4      M     M       M      M    M
 29000  -51.9 -61.4   310   42   22   2.5   1.3   15.1  59.2    11.2      M    M
 28000  -51.2 -60.2   315   42   22   2.4   1.3   12.1  53.8     9.0      M    M
 27000  -50.5 -58.9   315   42   21   2.4   1.3    9.4  48.9     7.0      M    M
 26000  -49.5 -57.1   320   42   21   7.5   4.1    7.0  44.6     5.2      M    M
 25000  -46.8 -52.2   320   42   21   8.9   4.9    6.6  43.9     4.9      M    M
 24000  -44.2 -47.6   320   42   21   9.0   4.9    6.3  43.4     4.7      M    M
 23000  -41.5 -42.7   320   41   21   9.3   5.1    6.1  43.1     4.6      M    M
 22000  -38.7 -37.7   320   40   20   9.3   5.1    5.9  42.6     4.5      M    M
 21000  -35.9 -32.6   320   38   20   9.3   5.1    5.8  42.4     4.4      M    M
 20000  -33.2 -27.8   320   37   19   8.7   4.8    5.5  42.0     4.3      M    M
 19500  -31.9 -25.4   325   37   19   8.7   4.8    5.3  41.6     4.1      M    M
 19000  -30.6 -23.1   325   37   19   8.7   4.8    5.1  41.3     4.0      M    M
 18500  -29.3 -20.7   330   38   19   8.7   4.8    5.0  41.0     3.8      M    M
 18000  -28.0 -18.4   330   38   20   8.5   4.7    4.9  40.7     3.7      M    M
 17500  -26.8 -16.2   330   38   20   8.3   4.6    4.6  40.3     3.5      M    M
 17000  -25.5 -13.9   335   38   20   8.3   4.6    4.4  39.9     3.3      M    M
 16500  -24.3 -11.7   335   38   20   8.0   4.4    4.1  39.4     3.1      M    M
 16000  -23.1  -9.6   340   38   20   8.0   4.4    3.8  38.8     2.9      M    M
 15500  -21.9  -7.4   340   39   20   8.0   4.4    3.5  38.4     2.6      M    M
 15000  -20.7  -5.3   340   39   20   8.1   4.4    3.2  37.8     2.4      M    M
 14500  -18.9  -2.0   340   39   20   7.7   4.2    2.8  37.0     2.0      M    M
 14000  -17.8  -0.0   345   39   20   7.7   4.2    2.5  36.4     1.7      M    M
 13500  -16.6   2.1   345   40   20   8.2   4.5    2.2  35.9     1.4      M    M
 13000  -15.4   4.3   345   40   21   8.1   4.4    1.9  35.5     1.2      M    M
 12500  -14.2   6.4   340   40   21   8.6   4.7    1.7  35.0     1.0      M    M
 12000  -13.0   8.6   340   41   21   6.4   3.5    1.4  34.5     0.7      M    M
 11750  -12.5   9.5   335   42   22   6.0   3.3    1.1  34.0     0.4      M    M
 11500  -12.1  10.2   335   42   22   6.6   3.6    0.8  33.5     0.1      M    M
 11250  -11.6  11.1   335   43   22   6.5   3.6    0.6  33.1    -0.1    359  1.8
 11000  -11.1  12.0   330   43   22   6.3   3.5    0.3  32.6    -0.4    338  1.7
 10750  -10.7  12.7   330   43   22   5.4   2.9    0.0  32.1    -0.7    317  1.6
 10500  -10.3  13.5   325   42   21   5.0   2.7   -0.3  31.4    -1.0    299  1.5
 10250   -9.9  14.2   325   40   21   4.9   2.7   -0.7  30.7    -1.4    280  1.4
 10000   -9.6  14.7   320   39   20   5.4   3.0   -1.1  30.1    -1.8    262  1.3
  9750   -9.1  15.6   320   37   19   6.4   3.5   -1.4  29.6    -2.1    241  1.2
  9500   -8.6  16.5   320   35   18   6.7   3.7   -1.6  29.1    -2.3    219  1.1
  9250   -8.2  17.2   315   33   17   6.5   3.5   -1.9  28.7    -2.6    197  1.0
  9000   -7.7  18.1   315   32   16   7.1   3.9   -2.1  28.2    -2.8    175  0.9
  8750   -7.1  19.2   315   30   16   7.6   4.2   -2.2  28.0    -3.0    151  0.8
  8500   -6.6  20.1   315   28   15   7.2   4.0   -2.4  27.6    -3.2    127  0.6
  8250   -6.0  21.2   315   27   14   7.7   4.2   -2.6  27.3    -3.4    103  0.5
  8000   -5.5  22.1   310   25   13   3.5   1.9   -2.9  26.9    -3.6     82  0.4
  7750   -5.5  22.1   310   23   12   1.0   0.6   -3.5  25.7    -4.3     72  0.4
  7500   -5.2  22.6   310   20   10   6.6   3.6   -4.0  24.9    -4.8     57  0.3
  7250   -4.9  23.2   305   16    8  -2.4  -1.3   -4.3  24.2    -5.2     39  0.2
  7000   -6.0  21.2   305   13    7 -26.7 -14.7   -5.7  21.8    -6.5     65  0.3
  6750      M     M     M    M    M     M     M      M     M       M      M    M

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

           11/24/2014 at 0800 MST          |       11/24/2014 at 1100 MST
                                           |
K index... +8.2  LI... +0.9                | K index... +6.5  LI... +1.6
CAPE... 0.0  CIN... M                      | CAPE... 0.0  CIN... -3.0
                                           |
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
--------------------------------------------------------------------------------
 50000 -54.0 -65.2  295  17  9   0.5   0.3 | -53.7 -64.7  305  20 10   1.6   0.9
 45000 -53.3 -63.9  310  19 10   0.5   0.3 | -51.4 -60.5  310  21 11   1.6   0.9
 40000 -49.9 -57.8  320  38 19   2.5   1.4 | -48.9 -56.0  325  35 18   1.6   0.9
 38000 -48.4 -55.1  320  46 24   0.5   0.3 | -47.9 -54.2  330  42 22  -0.3  -0.2
 36000 -49.3 -56.7  315  41 21  -1.4  -0.8 | -49.1 -56.4  325  41 21  -1.9  -1.1
 34000 -50.1 -58.2  310  36 19  -1.4  -0.8 | -50.2 -58.4  315  40 21  -1.9  -1.1
 32000 -51.0 -59.8  310  33 17  -1.5  -0.8 | -51.1 -60.0  315  37 19  -1.0  -0.6
 30000 -51.9 -61.4  310  31 16  -1.5  -0.8 | -51.7 -61.1  325  33 17  -1.1  -0.6
 29000 -52.1 -61.8  310  31 16   1.6   0.9 | -51.9 -61.4  325  30 16   1.5   0.8
 28000 -51.5 -60.7  305  31 16   1.7   1.0 | -51.3 -60.3  315  28 14   1.5   0.8
 27000 -51.0 -59.8  305  32 17   1.7   0.9 | -50.9 -59.6  310  26 13   1.5   0.8
 26000 -50.3 -58.5  300  33 17   6.8   3.7 | -50.2 -58.4  300  25 13   6.5   3.6
 25000 -47.7 -53.9  300  31 16   8.6   4.7 | -47.8 -54.0  300  23 12   8.1   4.5
 24000 -45.1 -49.2  295  29 15   8.6   4.7 | -45.4 -49.7  295  22 11   8.1   4.5
 23000 -42.5 -44.5  295  27 14   9.2   5.1 | -42.9 -45.2  295  21 11   9.5   5.2
 22000 -39.7 -39.5  295  26 13   9.3   5.1 | -40.0 -40.0  295  19 10   9.6   5.3
 21000 -36.9 -34.4  295  24 13   9.3   5.1 | -37.1 -34.8  300  18  9   9.6   5.3
 20000 -34.2 -29.6  300  24 12   8.9   4.9 | -34.3 -29.7  300  17  9   9.3   5.1
 19500 -32.9 -27.2  300  25 13   8.9   4.9 | -32.9 -27.2  305  17  9   9.3   5.1
 19000 -31.6 -24.9  305  25 13   8.9   4.9 | -31.5 -24.7  305  17  9   9.3   5.1
 18500 -30.2 -22.4  305  26 13   8.9   4.9 | -30.1 -22.2  310  17  9   9.3   5.1
 18000 -28.9 -20.0  310  26 14   8.9   4.9 | -28.7 -19.7  315  17  9   9.0   4.9
 17500 -27.6 -17.7  310  27 14   8.8   4.8 | -27.4 -17.3  315  17  9   8.6   4.7
 17000 -26.3 -15.3  315  27 14   8.8   4.8 | -26.1 -15.0  320  17  9   8.5   4.7
 16500 -25.0 -13.0  315  28 14   8.6   4.7 | -24.9 -12.8  320  18  9   7.7   4.2
 16000 -23.7 -10.7  320  29 15   8.6   4.7 | -23.8 -10.8  325  18  9   7.9   4.3
 15500 -22.4  -8.3  325  31 16   8.4   4.6 | -22.7  -8.9  330  19 10   6.3   3.4
 15000 -21.2  -6.2  330  32 17   8.4   4.6 | -21.8  -7.2  330  20 10   6.2   3.4
 14500 -19.9  -3.8  335  34 18   8.5   4.7 | -20.9  -5.6  335  22 11   6.1   3.3
 14000 -18.0  -0.4  340  38 19   8.6   4.7 | -19.6  -3.3  340  27 14   6.1   3.3
 13500 -16.8   1.8  340  40 21   8.5   4.7 | -18.6  -1.5  340  30 15   7.2   4.0
 13000 -15.5   4.1  340  42 22   8.4   4.6 | -17.5   0.5  345  33 17   7.0   3.8
 12500 -14.2   6.4  340  44 23   9.5   5.2 | -16.3   2.7  345  36 18   9.3   5.1
 12000 -12.8   9.0  340  46 24   7.9   4.3 | -15.0   5.0  345  37 19   8.8   4.8
 11750 -12.3   9.9  335  47 24   8.0   4.4 | -14.3   6.3  345  37 19   9.1   5.0
 11500 -11.6  11.1  335  47 24   8.6   4.7 | -13.6   7.5  345  37 19   9.5   5.2
 11250 -11.0  12.2  335  48 25   8.5   4.7 | -12.9   8.8  345  37 19   9.2   5.1
 11000 -10.4  13.3  330  48 25   8.3   4.6 | -12.2  10.0  345  37 19  10.0   5.5
 10750  -9.8  14.4  330  49 25   7.7   4.2 | -11.4  11.5  345  37 19  10.3   5.7
 10500  -9.2  15.4  325  48 25   7.5   4.1 | -10.7  12.7  345  36 19   9.7   5.3
 10250  -8.6  16.5  325  47 24   7.7   4.2 | -10.0  14.0  345  35 18  10.3   5.6
 10000  -8.1  17.4  325  46 24   7.1   3.9 |  -9.2  15.4  345  34 18   8.6   4.7
  9750  -7.6  18.3  320  44 23   6.3   3.4 |  -8.6  16.5  340  32 17   8.9   4.9
  9500  -7.1  19.2  320  43 22   6.2   3.4 |  -7.9  17.8  340  31 16  10.6   5.8
  9250  -6.7  19.9  320  41 21   6.3   3.4 |  -7.1  19.2  340  30 15  10.6   5.8
  9000  -6.2  20.8  315  40 20   6.3   3.4 |  -6.3  20.7  340  29 15   9.1   5.0
  8750  -5.8  21.6  315  37 19   4.6   2.5 |  -5.7  21.7  340  27 14   8.7   4.8
  8500  -5.5  22.1  315  35 18   3.3   1.8 |  -5.0  23.0  340  26 14  10.2   5.6
  8250  -5.3  22.5  315  33 17   3.7   2.0 |  -4.3  24.3  340  26 13   9.7   5.3
  8000  -5.0  23.0  310  30 16   2.6   1.4 |  -3.5  25.7  340  25 13   9.7   5.3
  7750  -4.8  23.4  310  27 14   3.0   1.7 |  -2.9  26.8  340  23 12   8.7   4.8
  7500  -4.5  23.9  310  23 12   6.7   3.7 |  -2.3  27.9  340  21 11   8.6   4.7
  7250  -4.1  24.6  310  19 10   1.3   0.7 |  -1.7  28.9  340  18  9   5.6   3.1
  7000  -4.6  23.7  310  15  8 -13.4  -7.4 |  -1.6  29.1  340  16  8  -1.5  -0.8
  6750     M     M    M   M  M     M     M |     M     M    M   M  M     M     M

           11/24/2014 at 1400 MST          |       11/24/2014 at 1700 MST
                                           |
K index... +7.2  LI... +1.0                | K index... +6.9  LI... +0.8
CAPE... 0.0  CIN... M                      | CAPE... 0.0  CIN... -0.5
                                           |
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 -53.9 -65.0  310  25 13   1.8   1.0 | -54.6 -66.3  325  30 16   2.6   1.4
 45000 -51.3 -60.3  315  29 15   1.8   1.0 | -50.4 -58.7  325  46 24   2.6   1.4
 40000 -48.3 -54.9  320  35 18   1.9   1.1 | -49.6 -57.3  330  46 24   0.2   0.1
 38000 -47.2 -53.0  320  37 19  -0.8  -0.4 | -49.4 -56.9  330  45 23  -0.8  -0.4
 36000 -49.0 -56.2  325  39 20  -3.1  -1.7 | -50.4 -58.7  335  46 23  -1.6  -0.9
 34000 -50.8 -59.4  330  41 21  -3.1  -1.7 | -51.3 -60.3  340  46 24  -1.6  -0.9
 32000 -51.3 -60.3  330  41 21   0.9   0.5 | -51.4 -60.5  345  45 23   0.9   0.5
 30000 -50.8 -59.4  330  38 20   0.9   0.5 | -50.8 -59.4  345  43 22   1.0   0.5
 29000 -50.3 -58.5  330  35 18   1.5   0.8 | -50.2 -58.4  345  40 21   3.0   1.6
 28000 -49.9 -57.8  325  32 17   1.6   0.9 | -49.3 -56.7  340  36 19   3.1   1.7
 27000 -49.4 -56.9  320  29 15   1.6   0.9 | -48.4 -55.1  335  33 17   3.1   1.7
 26000 -48.8 -55.8  320  27 14   4.6   2.5 | -47.4 -53.3  330  29 15   3.6   2.0
 25000 -47.1 -52.8  310  25 13   5.7   3.1 | -46.3 -51.3  320  26 13   3.7   2.1
 24000 -45.4 -49.7  295  24 12   5.6   3.1 | -45.2 -49.4  310  23 12   3.7   2.0
 23000 -43.6 -46.5  290  23 12   8.7   4.8 | -43.8 -46.8  305  22 11   8.0   4.4
 22000 -40.8 -41.4  295  21 11   9.1   5.0 | -41.3 -42.3  305  24 12   8.3   4.6
 21000 -38.1 -36.6  305  19 10   9.2   5.0 | -38.9 -38.0  305  26 13   8.3   4.6
 20000 -35.3 -31.5  310  18  9   9.3   5.1 | -36.3 -33.3  310  28 14   8.8   4.8
 19500 -33.9 -29.0  310  18  9   9.3   5.1 | -35.0 -31.0  310  28 15   8.8   4.8
 19000 -32.6 -26.7  315  18  9   9.3   5.1 | -33.7 -28.7  310  29 15   8.8   4.8
 18500 -31.2 -24.2  315  18  9   9.3   5.1 | -32.3 -26.1  315  30 15   8.8   4.8
 18000 -29.8 -21.6  320  17  9   9.0   5.0 | -31.0 -23.8  315  30 16   8.9   4.9
 17500 -28.5 -19.3  325  18  9   8.8   4.8 | -29.7 -21.5  320  30 15   8.9   4.9
 17000 -27.2 -17.0  330  20 10   8.7   4.8 | -28.4 -19.1  320  29 15   8.7   4.8
 16500 -25.9 -14.6  330  21 11   7.8   4.3 | -27.2 -17.0  325  30 16   7.6   4.2
 16000 -24.8 -12.6  335  23 12   7.9   4.3 | -26.0 -14.8  330  32 16   7.7   4.2
 15500 -23.6 -10.5  340  25 13   7.6   4.2 | -24.9 -12.8  335  33 17   7.9   4.3
 15000 -22.5  -8.5  340  27 14   7.6   4.2 | -23.7 -10.7  340  35 18   7.9   4.3
 14500 -20.8  -5.4  340  30 15   7.5   4.1 | -22.0  -7.6  340  36 19   7.9   4.3
 14000 -19.7  -3.5  340  32 16   7.5   4.1 | -20.8  -5.4  345  36 19   8.0   4.4
 13500 -18.6  -1.5  340  32 17   7.9   4.3 | -19.6  -3.3  345  36 19   8.2   4.5
 13000 -17.4   0.7  345  33 17   7.8   4.3 | -18.4  -1.1  345  36 19   8.4   4.6
 12500 -16.2   2.8  345  33 17   7.6   4.2 | -17.0   1.4  345  36 18   9.3   5.1
 12000 -15.1   4.8  345  33 17   8.3   4.6 | -15.7   3.7  345  35 18   7.1   3.9
 11750 -14.5   5.9  345  33 17   8.1   4.4 | -15.3   4.5  345  35 18   7.4   4.1
 11500 -13.9   7.0  345  33 17   7.6   4.2 | -14.6   5.7  345  34 18   8.7   4.8
 11250 -13.3   8.1  345  32 17   7.7   4.2 | -14.0   6.8  345  34 18   8.4   4.6
 11000 -12.7   9.1  345  32 17   8.1   4.4 | -13.4   7.9  345  34 17   8.3   4.6
 10750 -12.1  10.2  345  32 16   8.4   4.6 | -12.8   9.0  345  33 17   8.2   4.5
 10500 -11.5  11.3  350  30 16   8.2   4.5 | -12.2  10.0  345  33 17   8.4   4.6
 10250 -10.9  12.4  350  29 15   8.4   4.6 | -11.5  11.3  345  32 17   8.5   4.7
 10000 -10.3  13.5  350  28 14   7.7   4.2 | -10.9  12.4  345  31 16   7.6   4.1
  9750  -9.7  14.5  350  26 14   8.7   4.8 | -10.4  13.3  345  31 16   8.0   4.4
  9500  -9.0  15.8  350  25 13  10.1   5.5 |  -9.7  14.5  345  30 15   9.2   5.0
  9250  -8.3  17.1  350  25 13   9.8   5.4 |  -9.1  15.6  350  29 15   8.9   4.9
  9000  -7.6  18.3  355  24 12   9.3   5.1 |  -8.4  16.9  350  28 14   8.7   4.8
  8750  -6.9  19.6  355  23 12   9.4   5.2 |  -7.8  18.0  350  28 14   9.2   5.1
  8500  -6.1  21.0  355  23 12  10.1   5.6 |  -7.0  19.4  350  27 14  10.7   5.9
  8250  -5.4  22.3  355  22 12   9.8   5.4 |  -6.3  20.7  350  26 14   8.6   4.7
  8000  -4.7  23.5  355  22 11   9.5   5.2 |  -5.8  21.6  350  25 13   5.8   3.2
  7750  -4.0  24.8  355  20 10   8.9   4.9 |  -5.3  22.5  350  24 12   8.6   4.7
  7500  -3.4  25.9  355  19 10   8.3   4.6 |  -4.6  23.7  350  21 11   5.4   2.9
  7250  -2.8  27.0  355  17  9   5.5   3.0 |  -4.7  23.5  350  18  9  -5.6  -3.1
  7000  -2.7  27.1  355  15  8   0.5   0.3 |  -5.3  22.5  345  14  7 -10.0  -5.5
  6750     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 near the Air Force Academy
in Colorado Springs, Colorado at

                   North Latitude:  38 deg 58 min 48.000 sec
                   West Longitude: 104 deg 49 min 12.000 sec
                   Elevation: 6572 feet (2003 meters)

and may not be representative of other areas along the Front Range of the
Colorado Rocky Mountains.  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.

CIN (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


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