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Odbor letecké meteorologie

Předpověď vhodných podmínek pro plachtařské a balónové létání

 
 
Convection conditions forecast for balloning and gliding in Plzen area
  (the spot model elevation  1201 ft msl)
 
--------------------------------------------------------------------------------------------------------------
|      |                  |                  |             |       |Height of  |     |     |     |           |
| Term |    Ballooning    |     Gliding      |Base and top |Type of|cloudless  |     |     |     |Atmospheric|
|      |                  |                  |of convective| conv. |convection |  T  | Tc  | Tp  |instability|
|      |                  |                  |  clouds     |clouds.|  above    |     |     |     |indicators |
|------|-------------------------------------|-------------|       |2000 ft msl|     |     |     |-----------|
| YYGG |  Favorable conditions (yes/no/?)    | Base | Top  |       |           |     |     |     |  Fi |Sl850|
|------|-------------------------------------|------|------|-------|-----------|-----|-----|-----|-----|-----|
| UTC  |Surface|Convection|Surface|Convection|  hft |  hft |Cu/Cb/*|    hft    |deg.C|deg.C|deg.C|  -  |  -  |
|      | wind  |          |  wind |          |      |      |       |           |     |     |     |     |     |
|------------------------------------------------------------------------------------------------------------|
| 1918 |  no   |   yes    |  yes  |    no    |   30 | stab |       |           |  0.3|  3.0| -2.7|  -3 |   0 |
| 1919 |  no   |   yes    |  yes  |    no    |   33 | stab |       |           | -0.1|  3.3| -3.4|  -4 |   1 |
| 1920 |   ?   |   yes    |  yes  |    no    |   33 | stab |       |           | -0.8|  3.1| -3.9|  -5 |   1 |
| 1921 |   ?   |   yes    |  yes  |    no    |   34 | stab |       |           | -1.3|  3.1| -4.4|  -5 |   1 |
| 1922 |   ?   |   yes    |  yes  |    no    |   37 | stab |       |           | -1.8|  3.3| -5.1|  -6 |   2 |
|------------------------------------------------------------------------------------------------------------|
| 2003 |   ?   |   yes    |  yes  |    no    |   29 | stab |       |           | -0.9|  2.1| -3.0|  -3 |   1 |
| 2004 |   ?   |   yes    |  yes  |    no    |   28 | stab |       |           | -1.0|  1.9| -2.9|  -3 |   1 |
| 2005 |   ?   |   yes    |  yes  |    no    |   31 |   38 |       |           | -0.9|  2.1| -3.0|  -3 |   1 |
| 2006 |  no   |   yes    |  yes  |    no    |   30 | stab |       |           | -0.8|  1.9| -2.7|  -3 |   1 |
| 2007 |  no   |   yes    |  yes  |    no    |   28 | stab |       |           | -0.7|  1.8| -2.5|  -3 |   1 |
| 2008 |  no   |   yes    |  yes  |    no    |   27 | stab |       |           | -0.3|  1.6| -1.9|  -3 |   1 |
| 2009 |  no   |   yes    |  yes  |    no    |   24 | stab |       |     22    |  0.1|  1.2| -1.1|  -3 |   1 |
| 2010 |  no   |   yes    |  yes  |    no    |   25 | stab |       |     21    |  0.3|  1.6| -1.3|  -3 |   1 |
| 2011 |  no   |    no    |  yes  |    ?     |   25 | stab |   *   |           |  0.8|  1.6| -0.8|  -4 |   2 |
| 2012 |  no   |    ?     |  yes  |    ?     |   24 |   34 |   *   |           |  1.4|  1.6| -0.2|  -5 |   3 |
| 2013 |  no   |    ?     |  yes  |    ?     |   26 |   35 |   *   |           |  1.7|  2.1| -0.4|  -6 |   4 |
| 2014 |  no   |    ?     |  yes  |    no    |   26 |   41 |   *   |           |  1.5|  2.3| -0.8|  -7 |   5 |
| 2015 |   ?   |    ?     |  yes  |    no    |   26 | stab |       |     24    |  1.2|  2.3| -1.1|  -7 |   6 |
| 2016 |   ?   |   yes    |  yes  |    no    |   25 | stab |       |           |  0.6|  2.2| -1.6|  -8 |   6 |
| 2017 |   ?   |   yes    |  yes  |    no    |   27 | stab |       |           |  0.2|  2.7| -2.5|  -8 |   7 |
| 2018 |   ?   |   yes    |  yes  |    no    |   27 | stab |       |           | -0.2|  2.7| -2.9|  -8 |   7 |
| 2019 |        yes       |  yes  |    no    |   32 |   36 |       |           | -0.4|  3.2| -3.6|  -9 |   7 |
| 2020 |   ?   |   yes    |  yes  |    no    |   33 |   39 |       |           | -0.1|  3.4| -3.5|  -8 |   7 |
| 2021 |   ?   |   yes    |  yes  |    no    |   35 |   41 |       |           | -0.1|  3.6| -3.7|  -8 |   7 |
| 2022 |   ?   |   yes    |  yes  |    no    |   34 | stab |       |           | -0.1|  3.6| -3.7|  -9 |   8 |
|------------------------------------------------------------------------------------------------------------|
| 2103 |  no   |   yes    |  yes  |    no    |   19 | stab |   *   |           | -0.8| -0.1| -0.7|  -7 |   6 |
| 2104 |  no   |   yes    |  yes  |    no    |   19 | stab |   *   |           | -0.9| -0.4| -0.5|  -7 |   6 |
| 2105 |  no   |   yes    |  yes  |    no    |   22 | stab |   *   |           | -0.9| -0.0| -0.9|  -7 |   5 |
| 2106 |  no   |   yes    |  yes  |    no    |   23 | stab |       |     21    | -0.9|  0.3| -1.2|  -7 |   5 |
| 2107 |   ?   |   yes    |  yes  |    no    |   23 | stab |       |           | -0.9|  0.5| -1.4|  -7 |   5 |
| 2108 |   ?   |   yes    |  yes  |    no    |   25 | stab |       |           | -0.7|  0.9| -1.6|  -7 |   5 |
| 2109 |   ?   |   yes    |  yes  |    no    |   30 | stab |       |     21    | -0.1|  1.6| -1.7|  -7 |   5 |
| 2110 |   ?   |    ?     |  yes  |    no    |   29 | stab |       |     24    |  0.3|  1.4| -1.1|  -6 |   5 |
| 2111 |   ?   |    ?     |  yes  |    no    |   25 |   84 |   *   |           |  0.2|  1.1| -0.9|  -7 |   5 |
--------------------------------------------------------------------------------------------------------------
 Notes:   1. T  - surface temperature - 2 m AGL 
          2. Tc - convective temperature
          3. Tp - thermal deficit (the dufference between the surface temperature and the convective temperature ( T-Tc))
          4. Cloud's base and top are determined relative to MSL 
          5. "*"  - unpossible to determine the cloud's type 
          6. "-" - the cloud's base height is under the ground level
          7. Cloudless convection - the height represents the top level. This determines the upper height of instable
             atmospheric layer, provided the conditions for  development of convective clouds (Cu/Cb) are not satisfied.
          8. Fi - Faust index  (a (in)stability parameter) [-]
          9. SI850 - Showalter Index (a (in)stability parameter) [-]	





stranka pripravena 19.01.2018 v 18:33 swing a.s.

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