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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  1132 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 |          |      |      |       |           |     |     |     |     |     |
|------------------------------------------------------------------------------------------------------------|
| 0612 |   ?   |    no    |  yes  |   yes!   |   51 |  197 |  TCu  |           | 21.0| 21.3| -0.3|  -6 |  -0 |
| 0613 |   ?   |    no    |        yes       |   73 |  135 |  Cu   |           | 22.4| 22.3|  0.1|  -6 |  -1 |
| 0614 |  no   |    no    |        yes       |   77 |  136 |  Cu   |           | 22.6| 23.3| -0.7|  -6 |  -1 |
| 0615 |  no   |    no    |        yes       |   75 |  134 |  Cu   |           | 22.4| 23.1| -0.7|  -6 |  -1 |
| 0616 |  no   |    no    |   ?   |   yes    |   69 |  146 |  TCu  |           | 21.8| 22.8| -1.0|  -5 |  -1 |
| 0617 |  no   |    no    |        yes       |   75 |  122 |       |     52    | 21.2| 23.1| -1.9|  -5 |  -0 |
| 0618 |   ?   |    ?     |  yes  |    no    |   57 |  160 |       |     24    | 19.9| 22.1| -2.2|  -5 |  -1 |
| 0619 |   ?   |   yes    |  yes  |    no    |   59 |  136 |       |           | 18.3| 21.7| -3.4|  -6 |   1 |
| 0620 |        yes       |  yes  |    no    |   59 |  122 |       |           | 16.9| 21.5| -4.6| -11 |   1 |
| 0621 |   ?   |   yes    |  yes  |    no    |   54 |  110 |       |           | 16.2| 20.6| -4.4| -12 |   2 |
| 0622 |   ?   |   yes    |  yes  |    no    |   66 |   92 |       |           | 15.7| 21.3| -5.6| -12 |   3 |
|------------------------------------------------------------------------------------------------------------|
| 0703 |        yes       |  yes  |    no    |   67 | stab |       |           | 13.0| 20.0| -7.0|  -8 |   4 |
| 0704 |        yes       |  yes  |    no    |   69 | stab |       |           | 13.2| 20.2| -7.0|  -7 |   5 |
| 0705 |        yes       |  yes  |    no    |   67 | stab |       |           | 13.7| 19.4| -5.7|  -6 |   5 |
| 0706 |        yes       |  yes  |    no    |   56 |   64 |       |           | 14.6| 17.8| -3.2|  -6 |   5 |
| 0707 |   ?   |    ?     |  yes  |    no    |   53 | stab |       |     24    | 15.8| 17.5| -1.7|  -6 |   5 |
| 0708 |   ?   |    no    |  yes  |    ?     |   53 |   61 |       |     42    | 16.5| 17.7| -1.2|  -7 |   5 |
| 0709 |   ?   |    no    |        yes       |   49 |   66 |  Cu   |           | 17.3| 17.2|  0.1|  -6 |   4 |
| 0710 |  no   |    no    |   ?   |   yes    |   47 |   51 |  Cu   |           | 16.4| 16.7| -0.3|  -7 |   4 |
| 0711 |  no   |    ?     |   ?   |    ?     |   37 |   51 |  Cu   |           | 15.1| 16.1| -1.0|  -5 |   3 |
| 0712 |  no   |    no    |   ?   |   yes    |   25 |   76 |   *   |           | 14.4| 15.0| -0.6|  -4 |   2 |
| 0713 |  no   |    no    |   ?   |   yes?   |   27 |  146 |   *   |           | 15.4| 15.8| -0.4|  -3 |   2 |
| 0714 |  no   |    no    |  yes  |   yes!   |   34 |  229 |  Cb   |           | 17.7| 17.7|  0.0|  -3 |   1 |
| 0715 |  no   |   yes    |   ?   |    no    |   26 |  295 |       |     22    | 15.6| 16.8| -1.2|  -1 |   1 |
| 0716 |   ?   |   yes    |  yes  |    no    |   23 |  298 |       |           | 15.3| 16.6| -1.3|  -1 |  -0 |
| 0717 |   ?   |    ?     |  yes  |    no    |   26 | stab |       |     24    | 16.2| 17.3| -1.1|  -0 |  -1 |
| 0718 |  no   |   yes    |  yes  |    no    |   29 |  278 |       |           | 15.7| 17.7| -2.0|  -2 |  -1 |
| 0719 |  no   |   yes    |  yes  |    no    |   29 |  198 |       |           | 15.3| 17.1| -1.8|  -5 |   2 |
| 0720 |   ?   |   yes    |  yes  |    no    |   32 |  146 |       |           | 14.6| 17.1| -2.5|  -6 |   2 |
| 0721 |   ?   |   yes    |  yes  |    no    |   38 |  159 |       |           | 14.3| 18.1| -3.8|  -7 |   2 |
| 0722 |   ?   |   yes    |  yes  |    no    |   30 |  125 |       |           | 14.1| 16.2| -2.1|  -9 |   2 |
|------------------------------------------------------------------------------------------------------------|
| 0803 |   ?   |   yes    |  yes  |    no    |   38 |   57 |       |           | 10.0| 14.4| -4.4| -22 |  11 |
| 0804 |  no   |   yes    |  yes  |    no    |   40 |   73 |       |           |  9.7| 14.8| -5.1| -20 |  12 |
| 0805 |  no   |   yes    |  yes  |    no    |   37 |   72 |       |           | 10.8| 14.4| -3.6| -19 |  11 |
--------------------------------------------------------------------------------------------------------------
 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 06.07.2022 v 12:28 swing a.s.

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