"Apart from the threat areas, the maps show a yellow line: the areas where lightning is forecast. We are currently preparing to issue probabilistic lightning forecasts. The map will show two lines which separate areas with very low | medium | high probability of lightning to occur within 40 km radius of a location on the map. More information follows."
Aldus de F.a.q. op Estofex.org. Was dit al voorbij gekomen hiero?
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