logo ČHMÚ

Odbor letecké meteorologie

Předpověď vhodných podmínek pro plachtařské a balónové létání

 
 
Convection conditions forecast for balloning and gliding in Palava area
  (the spot model elevation  640 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 |  yes  |    no    |  yes  |   yes!   |   54 |  219 |  TCu  |           | 22.5| 22.7| -0.2|  -4 |  -2 |
| 0613 |   ?   |    ?     |  yes  |    no    |   56 |  219 |       |     23    | 20.6| 23.0| -2.4|  -4 |  -3 |
| 0614 |   ?   |    no    |  yes  |    ?     |   51 |  241 |  TCu  |           | 22.3| 23.1| -0.8|  -6 |  -3 |
| 0615 |  no   |    ?     |  yes  |    ?     |   45 |  236 |  TCu  |           | 21.3| 22.3| -1.0|  -7 |  -2 |
| 0616 |   ?   |    ?     |  yes  |    no    |   54 |  188 |       |     23    | 20.7| 23.4| -2.7|  -8 |  -2 |
| 0617 |  no   |   yes    |  yes  |    no    |   51 |  159 |       |           | 20.3| 22.5| -2.2| -10 |  -0 |
| 0618 |   ?   |   yes    |  yes  |    no    |   41 |  188 |       |           | 19.1| 21.6| -2.5|  -7 |   1 |
| 0619 |   ?   |   yes    |  yes  |    no    |   47 |  169 |       |           | 17.6| 22.1| -4.5|  -7 |   0 |
| 0620 |        yes       |  yes  |    no    |   44 |  155 |       |           | 16.1| 21.3| -5.2|  -7 |   1 |
| 0621 |        yes       |  yes  |    no    |   45 |  142 |       |           | 15.1| 21.2| -6.1|  -7 |   2 |
| 0622 |        yes       |  yes  |    no    |   48 |  126 |       |           | 14.0| 21.0| -7.0|  -7 |   2 |
|------------------------------------------------------------------------------------------------------------|
| 0703 |        yes       |  yes  |    no    |   44 |  129 |       |           | 11.7| 20.3| -8.6|  -6 |   3 |
| 0704 |        yes       |  yes  |    no    |   43 |  131 |       |           | 11.7| 20.2| -8.5|  -6 |   3 |
| 0705 |        yes       |  yes  |    no    |   45 |  131 |       |           | 13.0| 20.6| -7.6|  -6 |   2 |
| 0706 |        yes       |  yes  |    no    |   42 |  147 |       |           | 14.8| 20.5| -5.7|  -6 |   2 |
| 0707 |        yes       |  yes  |    no    |   40 |  177 |       |           | 16.3| 20.7| -4.4|  -5 |   3 |
| 0708 |   ?   |   yes    |  yes  |    no    |   39 |  185 |       |           | 17.5| 20.6| -3.1|  -5 |   3 |
| 0709 |   ?   |   yes    |  yes  |    no    |   38 |  192 |       |     23    | 18.7| 20.4| -1.7|  -4 |   2 |
| 0710 |   ?   |    ?     |  yes  |    ?     |   36 |  213 |  Cb   |           | 19.4| 20.2| -0.8|  -3 |   2 |
| 0711 |  no   |    no    |  yes  |   yes!   |   36 |  225 |  Cb   |           | 20.0| 20.4| -0.4|  -4 |   2 |
| 0712 |  no   |    no    |  yes  |   yes!   |   31 |  253 |  Cb   |           | 20.2| 19.9|  0.3|  -3 |   1 |
| 0713 |  no   |    ?     |   ?   |    no    |   31 |  235 |       |     27    | 18.5| 19.6| -1.1|  -3 |   2 |
| 0714 |  no   |    no    |   ?   |   yes?   |   30 |  202 |   *   |           | 18.2| 18.8| -0.6|  -5 |   3 |
| 0715 |  no   |    ?     |   ?   |    no    |   33 |  154 |       |     25    | 17.5| 18.8| -1.3|  -4 |   3 |
| 0716 |  no   |   yes    |   ?   |    no    |   32 |  125 |       |     23    | 16.8| 18.2| -1.4|  -3 |   2 |
| 0717 |  no   |    ?     |  yes  |    no    |   30 |  109 |  TCu  |           | 16.9| 17.8| -0.9|  -3 |   2 |
| 0718 |  no   |   yes    |  yes  |    no    |   30 |  113 |       |     23    | 16.6| 17.8| -1.2|  -5 |   3 |
| 0719 |   ?   |   yes    |  yes  |    no    |   29 |  137 |       |           | 16.0| 17.8| -1.8|  -4 |   3 |
| 0720 |   ?   |   yes    |  yes  |    no    |   29 |  116 |       |           | 15.6| 17.6|/////|  -3 |   1 |
| 0721 |   ?   |   yes    |  yes  |    no    |   29 |  126 |       |           | 15.2| 17.7| -2.5|  -3 |   1 |
| 0722 |   ?   |   yes    |  yes  |    no    |   30 |  126 |       |           | 14.8| 17.9| -3.1|  -3 |   1 |
|------------------------------------------------------------------------------------------------------------|
| 0803 |  no   |   yes    |  yes  |    no    |   27 | stab |       |           | 14.1| 17.6| -3.5|  -3 |   1 |
| 0804 |  no   |   yes    |   ?   |    no    |   17 |  202 |       |           | 14.4| 16.0| -1.6|  -2 |   1 |
| 0805 |  no   |   yes    |   ?   |    no    |   16 |  170 |       |           | 14.6| 15.7| -1.1|  -3 |   1 |
--------------------------------------------------------------------------------------------------------------
 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.

Copyright (c) 1999 Český hydrometeorologický ústav. Všechna práva vyhrazena.