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Forecast high taken from ILG
  18-APR-2015 12 UTC  Soaring report from IAD upper air data.
   Forecast high: 81 F; est. base of any clouds: 7400 feet AGL.

                    === Raw Upper-Air Data ===
Feet MSL:    279    334    389    472    668    895   1238   2798   3281   4177
Pres mb:    1007   1005   1003   1000    993    985    973    920    904    875
Temp C:     11.0   13.0   14.4   15.2   16.8   17.6   17.2   13.6   12.2   11.4
VirT C:     12.3   14.4   15.8   16.6   18.2   18.9   18.4   14.7   13.2   12.0
DewPt C:     9.9   10.6   10.6   10.4    9.8    8.6    8.2    5.6    4.2   -2.6
Wdir@kts:                      345  6                       10 11              

       === Interpolations (temps in deg. F, altitudes in feet MSL) ===
  MSL  *TI* Wdir@kts trig  VirT  1.5 degrees/division ("`": Dry Adiabatic)
-----  ---- -------- ---- . ---- -----------------------------------------
12000   3.3  300  19   87 | 26.5 `  :
11500   2.4            85 | 27.6  `  :
11000   2.4            85 | 30.2    `  :
10500   2.3            85 | 32.7      ` :
10000   2.3  290  17   85 | 35.4       `  :
 9500   1.7            84 | 36.9         ` :
 9000   1.0  270  20   83 | 38.5           `:
 8500   0.8            82 | 40.7             `:
 8000  -0.2  290  19   81 | 41.6              :
 7500  -0.6            81 | 43.5               :`
 7000  -0.9  280  19   80 | 45.6                 :`
 6500  -1.2            80 | 47.8                  : `
 6000  -1.9  285  18   78 | 49.1                   : `
 5500  -2.7            77 | 50.4                    :  `
 5000  -3.6  310  13   76 | 51.6                     :   `
 4500  -4.3            74 | 52.9                     :     `
 4000  -5.1  335  15   73 | 54.1                      :     `
 3500  -6.0            71 | 55.2                       :      `
 3000  -6.3   10  11   71 | 57.3                        :       `
 2500  -6.5            70 | 59.7                          :       `
 2000  -6.7   10  13   70 | 61.9                           :       `
 1500  -7.0            69 | 64.0                             :       `
 1000  -7.6  355  15   68 | 65.7                              :        `
  500 -11.0  345   6   62 | 62.3                            :           `


   === Complete Upper Air Data ===

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

   1007.0      279     12.3     11.0      9.9
   1005.0      334     14.4     13.0     10.6
   1003.0      389     15.8     14.4     10.6
   1000.0      472     16.6     15.2     10.4      345        6
    993.0      668     18.2     16.8      9.8
    985.0      895     18.9     17.6      8.6
    973.0     1238     18.4     17.2      8.2
    920.0     2798     14.7     13.6      5.6       10       11
    904.0     3281     13.2     12.2      4.2
    875.0     4177     12.0     11.4     -2.6
    852.0     4905     11.1     10.6     -5.4
    850.0     4970     11.0     10.4     -4.6      310       14
    841.0     5260     10.2      9.6     -3.4
    832.0     5553     10.2      9.8     -9.2
    822.0     5882      9.8      9.4    -10.6
    812.0     6214      9.1      8.6     -7.4
    807.0     6381      9.1      8.4     -2.6
    763.0     7892      5.4      4.8     -4.2
    749.0     8387      5.1      4.8    -12.2
    732.0     8999      3.6      3.2    -10.8
    705.0     9996      1.9      1.6    -15.4
    700.0    10184      1.3      1.0    -14.0      290       19
    657.0    11841     -3.4     -3.7    -15.7
    652.0    12039     -2.9     -3.1    -24.1
    639.0    12561     -3.5     -3.7    -21.7
    635.0    12724     -3.2     -3.3    -26.3
    622.0    13260     -4.1     -4.3    -23.3
    617.0    13468     -4.3     -4.3    -46.3
    614.0    13594     -4.3     -4.3         
    584.0    14883     -6.3     -6.3    -50.3
    579.0    15104     -6.8     -6.9    -34.9
    548.0    16503    -10.2    -10.3    -35.3
    525.0    17583    -11.5    -11.5    -52.5
    500.0    18803    -14.5    -14.5    -46.5      280       27
    452.0    21280    -20.9    -20.9    -49.9
    422.0    22931    -25.0    -25.1    -40.1
    400.0    24205    -25.9    -25.9    -47.9      290       31
    390.0    24806    -26.7    -26.7    -53.7
    325.0    29017    -38.7    -38.7    -51.7
    311.0    30005    -40.7    -40.7    -58.7
    300.0    30806    -42.7    -42.7    -58.7      295       45
    288.0    31705    -44.9    -44.9    -60.9
    271.0    33030    -48.1    -48.1    -56.1
    253.0    34505    -51.5    -51.5    -65.5
    250.0    34759    -52.3    -52.3    -66.3      290       54
    236.0    35973    -55.3    -55.3    -65.3
    220.0    37431    -58.9    -58.9    -69.9
    212.0    38190    -60.9    -60.9    -69.9
    208.0    38578    -60.9    -60.9    -69.9
    200.0    39374    -62.9    -62.9    -71.9      290       59
    197.0    39679    -63.5    -63.5    -71.5      290       58
    192.0    40197    -63.1    -63.1    -71.1
    190.0    40410    -61.5    -61.5    -70.5
    187.0    40734    -60.1    -60.1    -71.1
    179.0    41627    -61.1    -61.1    -74.1
    175.0    42089    -59.5    -59.5    -75.5
    171.0    42564    -59.7    -59.7    -77.7
    167.0    43052    -57.5    -57.5    -79.5
    155.0    44604    -55.5    -55.5    -87.5
    141.0    46576    -57.1    -57.1    -89.1
    127.0    48726    -61.3    -61.3    -92.3
    122.0    49544    -61.1    -61.1    -92.1
    116.0    50568    -62.5    -62.5    -92.5      280       38
    111.0    51463    -61.1    -61.1    -92.1
    104.0    52785    -62.7    -62.7    -92.7
Additional wind data:

  H(ft)   dir   spd
 ------   ---   ---
  1000    355    15
  2000     10    13
  3000     10    11
  4000    335    15
  5000    310    13
  6000    285    18
  7000    280    19
  8000    290    19
  9000    270    20
 10000    290    17
 12000    300    19
 13000    305    25
 14000    280    25
 16000    250    23
 18000    270    22
 20000    280    30
 22000    295    27
 24000    280    29
 25000    300    35
 29000    305    44
 30000    295    47
 33000    275    51
 39000    290    59
 41000    310    49
 42000    295    34
 45000    285    62
 48000    305    46
 49000    290    35
 50000    290    42
 51000    270    41