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Convection conditions forecast for balloning and gliding in Prague area
(the spot model elevation 1142 ft msl)
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| | | | | |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 | | | | | | | | | | |
|------------------------------------------------------------------------------------------------------------|
| 1412 | no | no | ? | yes | 98 | stab | | 79 | 21.2| 24.8| -3.6| -7 | -2 |
| 1413 | no | no | ? | yes | 77 | stab | Cu | | 21.7| 20.9| 0.8| -7 | -2 |
| 1414 | no | no | ? | yes | 81 | stab | Cu | | 21.3| 22.3| -1.0| -6 | -2 |
| 1415 | no | no | ? | yes | 83 | stab | | 76 | 21.0| 23.1| -2.1| -6 | -3 |
| 1416 | no | no | ? | yes | 88 | stab | | 68 | 20.3| 23.6| -3.3| -6 | -2 |
| 1417 | no | ? | ? | ? | 95 | stab | | 37 | 19.3| 24.8| -5.5| -7 | -2 |
| 1418 | no | yes | ? | no | 91 | stab | | | 18.0| 24.2| -6.2| -8 | -2 |
| 1419 | no | yes | yes | no | 89 | stab | | | 16.8| 23.8| -7.0| -8 | -3 |
| 1420 | no | yes | yes | no | 88 | stab | | | 15.6| 23.7| -8.1| -8 | -3 |
| 1421 | ? | yes | yes | no | 90 | stab | | | 14.7| 23.8| -9.1| -8 | -3 |
| 1422 | no | yes | yes | no | 98 | 180 | | | 14.1| 25.6|-11.5| -8 | -3 |
|------------------------------------------------------------------------------------------------------------|
| 1503 | no | yes | yes | no | 117 | 325 | | | 12.3| 30.1|-17.8| -8 | -1 |
| 1504 | no | yes | yes | no | 95 | 170 | | | 12.0| 25.0|-13.0| -8 | -2 |
| 1505 | no | yes | yes | no | 107 | 116 | | | 12.8| 28.6|-15.8| -11 | -1 |
| 1506 | no | ? | yes | no | 86 | 91 | | 26 | 14.7| 24.0| -9.3| -10 | -1 |
| 1507 | no | ? | ? | ? | 81 | 98 | | 37 | 16.7| 23.8| -7.1| -10 | -1 |
| 1508 | no | no | ? | ? | 79 | stab | | 48 | 18.4| 23.3| -4.9| -10 | -0 |
| 1509 | no | no | ? | yes | 76 | stab | | 58 | 19.7| 22.7| -3.0| -9 | 0 |
| 1510 | no | no | ? | yes | 75 | stab | | 65 | 20.7| 22.7|/////| -9 | -1 |
| 1511 | no | no | ? | yes | 65 | 69 | Cu | | 21.4| 20.0| 1.4| -9 | -2 |
| 1512 | no | no | ? | yes | 71 | 76 | Cu | | 21.9| 20.7| 1.2| -8 | -3 |
| 1513 | no | no | ? | yes | 73 | 83 | Cu | | 22.0| 21.2| 0.8| -8 | -3 |
| 1514 | no | no | ? | yes | 82 | stab | Cu | | 21.9| 22.1| -0.2| -8 | -4 |
| 1515 | no | no | ? | yes | 113 | 132 | | 76 | 21.0| 29.4| -8.4| -9 | -3 |
| 1516 | no | no | ? | yes | 111 | 132 | | 58 | 20.3| 29.4| -9.1| -9 | -2 |
| 1517 | no | no | ? | yes | 80 | 91 | | 54 | 19.5| 23.5| -4.0| -9 | -2 |
| 1518 | no | ? | ? | ? | 78 | stab | | 32 | 18.4| 22.8| -4.4| -10 | -1 |
| 1519 | no | yes | ? | no | 70 | 85 | | | 17.3| 21.7| -4.4| -9 | -1 |
| 1520 | no | yes | ? | no | 71 | 96 | | | 16.4| 21.7| -5.3| -8 | -2 |
| 1521 | no | yes | ? | no | 72 | stab | | | 15.7| 22.0| -6.3| -8 | -1 |
| 1522 | no | yes | ? | no | 73 | 79 | | | 15.3| 22.1| -6.8| -8 | -1 |
|------------------------------------------------------------------------------------------------------------|
| 1603 | no | yes | ? | no | 66 | 94 | | | 13.1| 20.8| -7.7| -10 | -1 |
| 1604 | no | yes | ? | no | 70 | 107 | | | 12.8| 21.1| -8.3| -10 | -0 |
| 1605 | no | ? | ? | ? | 69 | 119 | | 30 | 13.3| 20.9| -7.6| -9 | -0 |
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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) [-]
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