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Convection conditions forecast for balloning and gliding in Brno area
(the spot model elevation 791 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 | | | | | | | | | | |
|------------------------------------------------------------------------------------------------------------|
| 2806 | no | ? | ? | no | 39 | stab | | 26 | 8.6| 12.1| -3.5| -7 | 5 |
| 2807 | ? | ? | yes | no | 30 | stab | | 28 | 8.9| 10.2| -1.3| -6 | 3 |
| 2808 | no | ? | yes | ? | 29 | 39 | Cu | | 9.7| 9.2| 0.5| -5 | 3 |
| 2809 | no | ? | ? | ? | 35 | stab | Cu | | 10.6| 10.0| 0.6| -4 | 1 |
| 2810 | no | no | yes | 38 | stab | Cu | | 12.2| 11.0| 1.2| -4 | 0 |
| 2811 | no | no | ? | yes | 46 | stab | Cu | | 13.8| 12.6| 1.2| -4 | 1 |
| 2812 | no | no | ? | yes | 49 | 57 | Cu | | 15.1| 13.3| 1.8| -8 | 2 |
| 2813 | no | no | ? | yes | 52 | 78 | Cu | | 15.7| 14.1| 1.6| -6 | 2 |
| 2814 | no | no | ? | yes | 58 | 83 | Cu | | 16.1| 15.0| 1.1| -6 | 0 |
| 2815 | no | no | ? | yes | 70 | 101 | Cu | | 16.2| 16.7| -0.5| -1 | -1 |
| 2816 | no | no | yes | 72 | 168 | | 50 | 15.8| 17.5| -1.7| -1 | -2 |
| 2817 | ? | ? | yes | no | 74 | 101 | | 26 | 14.9| 16.0| -1.1| -3 | -1 |
| 2818 | no | ? | no | ? | 37 | stab | Cu | | 10.2| 10.1| 0.1| -6 | 5 |
| 2819 | no | no | ? | ? | 29 | 47 | Cu | | 8.7| 8.7| 0.0| -6 | 5 |
| 2820 | no | ? | ? | no | 28 | stab | Cu | | 8.0| 8.9| -0.9| -4 | 2 |
| 2821 | no | ? | yes | no | 36 | stab | | 24 | 7.8| 10.0| -2.2| -4 | 2 |
| 2822 | ? | yes | yes | no | 42 | 75 | | | 7.3| 11.4| -4.1| -4 | -0 |
|------------------------------------------------------------------------------------------------------------|
| 2903 | yes | yes | no | 67 | stab | | | 3.9| 16.2|-12.3| -9 | 3 |
| 2904 | yes | yes | no | 63 | stab | | | 3.6| 16.2|-12.6| -7 | 2 |
| 2905 | yes | yes | no | 70 | 76 | | | 3.8| 18.5|-14.7| -8 | 3 |
| 2906 | yes | yes | no | 75 | 82 | | | 4.8| 19.1|-14.3| -8 | 3 |
| 2907 | ? | yes | yes | no | 89 | stab | | | 6.9| 22.5|-15.6| -9 | 4 |
| 2908 | no | yes | yes | no | 91 | 120 | | 22 | 9.9| 23.8|-13.9| -9 | 4 |
| 2909 | no | ? | ? | ? | 82 | 155 | | 33 | 12.9| 23.9|-11.0| -7 | 3 |
| 2910 | no | ? | ? | ? | 31 | 37 | Cu | | 14.6| 12.9| 1.7| -6 | 1 |
| 2911 | no | ? | ? | ? | 75 | 277 | | 38 | 16.4| 24.4| -8.0| -4 | -1 |
| 2912 | no | no | ? | ? | 80 | 267 | | 41 | 18.0| 25.1| -7.1| -3 | -3 |
| 2913 | no | no | ? | ? | 82 | 237 | | 45 | 19.4| 25.4| -6.0| -4 | -2 |
| 2914 | no | no | ? | ? | 79 | 199 | | 48 | 20.5| 24.9| -4.4| -3 | -2 |
| 2915 | no | no | yes | ? | 73 | 224 | | 48 | 21.2| 24.5| -3.3| -2 | -4 |
| 2916 | no | yes | yes | no | 76 | 261 | | | 20.7| 25.2| -4.5| -1 | -5 |
| 2917 | no | yes | yes | no | 79 | 295 | | | 19.2| 25.9| -6.7| 0 | -6 |
| 2918 | no | yes | yes | no | 84 | 318 | | | 17.8| 26.7| -8.9| 0 | -6 |
| 2919 | no | yes | yes | no | 85 | 310 | | | 16.7| 26.8|-10.1| 0 | -6 |
| 2920 | no | yes | yes | no | 85 | 291 | | | 15.3| 26.7|-11.4| -1 | -6 |
| 2921 | ? | yes | yes | no | 86 | 262 | | | 14.0| 26.5|-12.5| -1 | -8 |
| 2922 | yes | yes | no | 91 | 261 | | | 12.8| 27.0|-14.2| -1 | -9 |
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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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