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Convection conditions forecast for balloning and gliding in Plzen area
(the spot model elevation 1132 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 | | | | | | | | | | |
|------------------------------------------------------------------------------------------------------------|
| 0803 | ? | yes | yes | no | 61 | stab | | | 7.1| 18.8|-11.7| -6 | 6 |
| 0804 | ? | yes | yes | no | 62 | stab | | | 7.4| 19.3|-11.9| -5 | 4 |
| 0805 | ? | yes | yes | no | 55 | 78 | | | 8.0| 18.2|-10.2| -6 | 3 |
| 0806 | ? | yes | yes | no | 38 | stab | | | 8.4| 14.4| -6.0| -12 | 5 |
| 0807 | yes | yes | no | 39 | 49 | | | 8.7| 14.9| -6.2| -13 | 5 |
| 0808 | ? | yes | yes | no | 39 | stab | | | 8.9| 14.9| -6.0| -12 | 5 |
| 0809 | ? | yes | yes | no | 32 | 43 | | | 10.2| 14.1| -3.9| -11 | 5 |
| 0810 | ? | yes | yes | no | 26 | 37 | | | 11.2| 12.7| -1.5| -11 | 4 |
| 0811 | ? | yes | yes | no | 23 | 49 | | 20 | 11.6| 12.7| -1.1| -9 | 3 |
| 0812 | ? | yes | yes | no | 25 | 48 | | 22 | 12.0| 13.2| -1.2| -6 | 3 |
| 0813 | ? | yes | yes | no | 26 | 53 | | | 12.0| 13.5| -1.5| -5 | 2 |
| 0814 | ? | yes | yes | no | 27 | 50 | | | 11.9| 13.7| -1.8| -5 | 2 |
| 0815 | ? | yes | yes | no | 25 | stab | | | 11.4| 13.2| -1.8| -5 | 3 |
| 0816 | ? | yes | yes | no | 28 | 44 | | | 10.8| 14.0| -3.2| -4 | 2 |
| 0817 | ? | yes | yes | no | 30 | 50 | | | 10.7| 14.4| -3.7| -5 | 2 |
| 0818 | ? | yes | yes | no | 31 | 53 | | | 10.6| 14.4| -3.8| -7 | 2 |
| 0819 | ? | yes | yes | no | 31 | 57 | | | 10.6| 14.6| -4.0| -7 | 3 |
|------------------------------------------------------------------------------------------------------------|
| 0903 | ? | yes | yes | no | 35 | 44 | | | 9.5| 14.7| -5.2| -4 | 2 |
| 0904 | ? | yes | yes | no | 32 | stab | | | 9.6| 14.0| -4.4| -6 | 2 |
| 0905 | ? | yes | yes | no | 25 | stab | | | 9.6| 12.1| -2.5| -8 | 3 |
| 0906 | ? | yes | yes | no | 35 | stab | | | 9.4| 14.6| -5.2| -8 | 2 |
| 0907 | ? | yes | yes | no | 58 | 94 | | | 8.8| 19.9|-11.1| -9 | 2 |
| 0908 | yes | yes | no | 59 | 76 | | | 8.5| 19.9|-11.4| -10 | 2 |
| 0909 | yes | yes | no | 61 | 68 | | | 9.1| 20.1|-11.0| -10 | 2 |
| 0910 | yes | yes | no | 61 | stab | | 22 | 10.0| 20.5|-10.5| -10 | 3 |
| 0911 | yes | ? | yes | no | 22 | stab | * | | 11.0| 11.0| 0.0| -11 | 3 |
| 0912 | yes | ? | yes | no | 24 | stab | * | | 11.7| 11.9| -0.2| -11 | 3 |
| 0913 | yes | ? | yes | no | 62 | 69 | | 26 | 12.0| 21.7| -9.7| -11 | 2 |
| 0914 | yes | yes | no | 66 | stab | | 20 | 11.5| 22.5|-11.0| -12 | 2 |
| 0915 | yes | yes | no | 70 | stab | | | 10.1| 22.9|-12.8| -11 | 2 |
| 0916 | yes | yes | no | 79 | stab | | | 8.6| 24.9|-16.3| -11 | 2 |
| 0917 | yes | yes | no | 94 | 106 | | | 7.4| 27.6|-20.2| -11 | 2 |
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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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