Messages:

20210312:  Forecast high temps missing again.
20201210: fixed a bug which produced "segmentation fault" error messages
20191227:  Forecast high temps back (again).  NWS site problems.
20190606:  Forecast high temps are back
Forecast high temperature missing.
  13-MAY-2021 12 UTC  Soaring report from DVN upper air data.
No forecast high or estimated cloud base.

                    === Raw Upper-Air Data ===
Feet MSL:    751    805    832    942   1413   2933   3110   5235   6442   9403
Pres mb:    1003   1001   1000    996    979    926    920    850    812    724
Temp C:      4.6    8.8    9.2   10.4   12.0    9.2    9.0    2.8   -0.5   -9.1
VirT C:      5.4    9.6    9.9   11.1   12.6    9.7    9.5    3.2   -0.1   -8.7
DewPt C:     2.0    1.8    1.2    0.4   -3.0   -5.8   -5.0   -8.2  -10.5  -11.9
Wdir@kts:               290  4                      270  5 110  5              

       === Interpolations (temps in deg. F, altitudes in feet MSL) ===
  MSL  *TI* Wdir@kts trig  VirT  1.0 degrees/division ("`": Dry Adiabatic)
-----  ---- -------- ---- . ---- -----------------------------------------
 6000         95   7   61 | 33.9 `                   :
 5500                  61 | 36.4   `                   :
 5000        145   3   60 | 39.0      `                   :
 4500                  60 | 41.7        `                   :
 4000        255   3   60 | 44.3           `                   :
 3500                  60 | 47.0              `                  :
 3000        275   6   60 | 49.3                `                   :
 2500                  59 | 50.9                   `                 :
 2000        270  12   58 | 52.6                     `                 :
 1500                  57 | 54.3                        `               :
 1000        295   3   52 | 52.3                           `           :


   === Complete Upper Air Data ===

   P(mb)     H(ft)    Tv(C)    T(C)    DP(C)   wind dir  wind spd

   1003.0      751      5.4      4.6      2.0
   1001.0      805      9.6      8.8      1.8
   1000.0      832      9.9      9.2      1.2      290        4
    996.0      942     11.1     10.4      0.4
    979.0     1413     12.6     12.0     -3.0
    926.0     2933      9.7      9.2     -5.8
    920.0     3110      9.5      9.0     -5.0      270        5
    850.0     5235      3.2      2.8     -8.2      110        5
    812.0     6442     -0.1     -0.5    -10.5
    724.0     9403     -8.7     -9.1    -11.9
    701.0    10220    -10.9    -11.1    -20.1
    700.0    10256    -11.1    -11.3    -20.3       85       12
    685.0    10799    -12.5    -12.7    -21.7
    671.0    11319    -10.4    -10.5    -33.5
    650.0    12121    -10.9    -10.9    -37.9
    530.0    17171    -20.3    -20.3    -47.3
    528.0    17263    -20.4    -20.5    -38.5
    500.0    18578    -23.6    -23.7    -37.7       25       15
    460.0    20555    -29.1    -29.1    -46.1
    447.0    21227    -28.9    -28.9    -61.9
    400.0    23798    -35.7    -35.7    -51.7       55        7
    390.0    24374    -37.1    -37.1    -57.1
    372.0    25439    -39.9    -39.9    -48.9
    320.0    28751    -48.5    -48.5    -57.5
    300.0    30136    -51.1    -51.1    -62.1       70        8
    250.0    33981    -56.3    -56.3    -69.3      205        3
    247.0    34232    -56.9    -56.9    -69.9      220        3
    208.0    37853    -50.7    -50.7    -79.7
    200.0    38691    -51.1    -51.1    -83.1      290       23
    188.0    40012    -50.9    -50.9    -83.9
    150.0    44825    -51.7    -51.7    -83.7      285       37
    101.0    53161    -55.9    -55.9    -84.9
Additional wind data:

  H(ft)   dir   spd
 ------   ---   ---
  1000    295     3
  2000    270    12
  3000    275     6
  4000    255     3
  5000    145     3
  6000     95     7
  7000     90     7
  8000    105    10
  9000    100    15
 10000    100    12
 12000     30     6
 13000     10     6
 14000    355     8
 15000     10     8
 16000     50     9
 19000     15    14
 20000     20    14
 22000     45     5
 23000     35     7
 24000     75     8
 25000     70     7
 27000     30     6
 29000     70     7
 30000     65     8
 32000    110     7
 34000    225     3
 35000    280    13
 37000    305    21
 42000    280    35
 43000    290    39
 50000    280    33