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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 | | | | | | | | | | |
|------------------------------------------------------------------------------------------------------------|
| 1306 | yes | yes | no | 117 | stab | | | 7.5| 26.2|-18.7| -15 | 8 |
| 1307 | yes | yes | no | 66 | stab | | 22 | 9.9| 13.6| -3.7| -15 | 8 |
| 1308 | yes | no | yes | ? | 61 | stab | | 42 | 11.8| 13.2| -1.4| -16 | 8 |
| 1309 | yes | no | yes | 58 | 63 | Cu | | 13.3| 13.2| 0.1| -17 | 8 |
| 1310 | ? | no | yes | 94 | stab | | 67 | 14.3| 21.7| -7.4| -18 | 8 |
| 1311 | ? | no | yes | 92 | stab | | 64 | 14.6| 21.3| -6.7| -18 | 8 |
| 1312 | ? | no | yes | 90 | stab | | 71 | 15.7| 20.7| -5.0| -18 | 7 |
| 1313 | ? | no | yes | 95 | stab | | 71 | 16.0| 21.5| -5.5| -17 | 6 |
| 1314 | ? | no | yes | 108 | stab | | 64 | 15.7| 24.6| -8.9| -15 | 4 |
| 1315 | yes | no | yes | 99 | stab | | 64 | 15.9| 23.1| -7.2| -12 | 4 |
| 1316 | yes | no | yes | 81 | stab | | 64 | 15.7| 18.9| -3.2| -11 | 4 |
| 1317 | yes | no | yes | 96 | stab | | 60 | 15.3| 22.5| -7.2| -11 | 4 |
| 1318 | yes | yes | no | 99 | stab | | | 13.5| 23.3| -9.8| -11 | 3 |
| 1319 | yes | yes | no | 94 | stab | | | 11.8| 22.4|-10.6| -11 | 3 |
| 1320 | yes | yes | no | 117 | stab | | | 9.7| 25.6|-15.9| -9 | 3 |
| 1321 | yes | yes | no | 104 | stab | | | 8.2| 23.9|-15.7| -9 | 3 |
| 1322 | yes | yes | no | 99 | stab | | | 7.1| 23.3|-16.2| -9 | 3 |
|------------------------------------------------------------------------------------------------------------|
| 1403 | yes | yes | no | 93 | stab | | | 4.3| 22.1|-17.8| -9 | 4 |
| 1404 | yes | yes | no | 94 | stab | | | 4.4| 22.3|-17.9| -9 | 4 |
| 1405 | yes | yes | no | 95 | stab | | | 6.3| 22.5|-16.2| -9 | 3 |
| 1406 | yes | yes | no | 95 | 120 | | | 8.8| 22.6|-13.8| -9 | 3 |
| 1407 | yes | yes | no | 86 | 112 | | | 11.4| 21.8|-10.4| -8 | 4 |
| 1408 | yes | ? | yes | ? | 84 | 90 | | 32 | 13.6| 21.6| -8.0| -8 | 4 |
| 1409 | yes | no | yes | 81 | 119 | | 51 | 15.5| 21.3| -5.8| -7 | 4 |
| 1410 | yes | no | yes | 80 | 115 | | 57 | 17.0| 21.2| -4.2| -7 | 4 |
| 1411 | ? | no | yes | 87 | 120 | | 64 | 18.2| 22.0| -3.8| -6 | 3 |
| 1412 | no | no | yes | 93 | stab | | 71 | 18.8| 22.5| -3.7| -6 | 1 |
| 1413 | no | no | yes | 88 | stab | | 83 | 19.7| 20.9| -1.2| -5 | 0 |
| 1414 | no | no | yes | 80 | 111 | Cu | | 20.1| 19.9| 0.2| -3 | -1 |
| 1415 | ? | no | yes | 76 | 139 | Cu | | 19.6| 20.0| -0.4| -3 | -1 |
| 1416 | no | no | yes | 94 | 119 | | 61 | 19.3| 22.1| -2.8| -5 | -1 |
| 1417 | no | yes | yes | no | 102 | 108 | | | 17.9| 23.3| -5.4| -5 | -1 |
| 1418 | ? | yes | yes | no | 93 | 119 | | | 16.2| 22.1| -5.9| -8 | 0 |
| 1419 | ? | yes | yes | no | 94 | stab | | | 14.5| 21.9| -7.4| -6 | 0 |
| 1420 | ? | yes | yes | no | 86 | 103 | | | 13.3| 20.9| -7.6| -5 | 1 |
| 1421 | ? | yes | yes | no | 78 | 103 | | | 13.2| 20.1| -6.9| -6 | 1 |
| 1422 | ? | yes | yes | no | 74 | 103 | | | 13.4| 19.7| -6.3| -4 | 1 |
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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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