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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 | | | | | | | | | | |
|------------------------------------------------------------------------------------------------------------|
| 1112 | yes | ? | yes | no | 25 | 29 | * | | 0.4| 0.1| 0.3| -13 | 7 |
| 1113 | yes | ? | yes | no | 27 | stab | * | | 0.6| 0.4| 0.2| -12 | 7 |
| 1114 | yes | ? | yes | ? | 26 | 32 | * | | 0.6| 0.8| -0.2| -10 | 6 |
| 1115 | yes | ? | yes | ? | 25 | 32 | * | | 0.5| 1.0| -0.5| -12 | 7 |
| 1116 | yes | ? | yes | no | 25 | 29 | * | | 0.2| 1.2| -1.0| -10 | 7 |
| 1117 | yes | yes | no | 25 | 30 | | 20 | 0.0| 1.2| -1.2| -9 | 7 |
| 1118 | yes | yes | no | 26 | stab | | | -0.2| 1.3| -1.5| -10 | 7 |
| 1119 | yes | yes | no | 106 | stab | | | -0.3| 21.6|-21.9| -10 | 8 |
| 1120 | yes | yes | no | 108 | stab | | | -0.4| 21.7|-22.1| -11 | 8 |
| 1121 | yes | yes | no | 117 | 140 | | | -0.6| 23.6|-24.2| -10 | 8 |
| 1122 | yes | yes | no | 119 | 132 | | | -0.7| 24.3|-25.0| -9 | 7 |
|------------------------------------------------------------------------------------------------------------|
| 1203 | yes | yes | no | 115 | stab | | | -2.6| 23.4|-26.0| -14 | 5 |
| 1204 | yes | yes | no | 115 | 119 | | | -2.7| 23.3|-26.0| -14 | 6 |
| 1205 | yes | yes | no | 112 | stab | | | -2.8| 22.3|-25.1| -14 | 5 |
| 1206 | yes | yes | no | 106 | stab | | | -2.6| 20.9|-23.5| -13 | 5 |
| 1207 | yes | yes | no | 110 | stab | | | -2.5| 22.0|-24.5| -12 | 5 |
| 1208 | yes | yes | no | 111 | stab | | | -2.2| 22.4|-24.6| -12 | 5 |
| 1209 | yes | yes | no | 108 | stab | | | -1.4| 21.6|-23.0| -13 | 5 |
| 1210 | yes | yes | no | 101 | stab | | | -0.5| 20.0|-20.5| -13 | 5 |
| 1211 | yes | yes | no | 93 | stab | | | 0.2| 18.6|-18.4| -13 | 5 |
| 1212 | yes | ? | yes | no | 90 | stab | | 23 | 0.6| 17.7|-17.1| -13 | 5 |
| 1213 | yes | ? | yes | no | 86 | stab | | 23 | 0.7| 16.7|-16.0| -12 | 4 |
| 1214 | yes | ? | yes | no | 23 | stab | * | | 0.6| 0.6| 0.0| -13 | 4 |
| 1215 | yes | ? | yes | no | 116 | stab | | 25 | 0.0| 24.1|-24.1| -13 | 4 |
| 1216 | yes | ? | yes | no | 122 | 180 | | 23 | -0.6| 25.5|-26.1| -12 | 4 |
| 1217 | yes | yes | no | 124 | stab | | | -1.0| 25.8|-26.8| -12 | 4 |
| 1218 | yes | yes | no | 127 | 136 | | | -1.2| 26.5|-27.7| -12 | 4 |
| 1219 | yes | yes | no | 128 | 176 | | | -1.6| 26.3|-27.9| -12 | 4 |
| 1220 | yes | yes | no | 30 | stab | | | -1.4| 0.5| -1.9| -12 | 5 |
| 1221 | yes | yes | no | 27 | 31 | | | -1.4| 0.4| -1.8| -12 | 5 |
| 1222 | yes | yes | no | 28 | stab | | | -1.6| 0.1| -1.7| -12 | 5 |
|------------------------------------------------------------------------------------------------------------|
| 1303 | yes | yes | no | 138 | 170 | | | -2.4| 27.8|-30.2| -12 | 5 |
| 1304 | yes | yes | no | 139 | stab | | | -2.7| 27.8|-30.5| -12 | 5 |
| 1305 | yes | yes | no | 138 | stab | | | -3.7| 27.7|-31.4| -12 | 5 |
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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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