Previsão de Sexta-feira para Governador Valadares by Lucas Machado

GOVERNADOR VALADARES  – 01/17/2014

WEATHER FORECAST for 12:00h às 17:00h

Good weather at first, becoming cloudy, with possibility of rain in the end of the afternoon.

The high pressure weather system which was prevailing in the area looses strenght with the approach of a front associated with a low pressure system, coming from the south,  rendering the condition very unstable.

OBS: It is necessary to analize “in loco” whether the condition today will be a typical “pre-frontal” with good conditions on the northern side of the front during the whole afternoon.., or whether the front will really reach the area during the task flying time.

The presence of Cirrus clouds wich normally precede the front does not indicate, solely, that conditions will be impractible for flight, but it is recomended that if the Task Comission consider conditions safe, that the task be flown early and not too long, in order to avoid the conditions becoming increasingly unstable along the  afternoon.

WINDS: (km/h)

Surface: calm and variable, the whole afternoon

at600m: NNE 7, becoming E 5

at1200m: N 9, becoming NNE 5

at1800m: N 11, becoming NO 6

THERMALS: 3 to 4 m/s around the mountain, reaching 4,5 m/s on the NE sector, becoming 3 m/s on the east sector.

CEILING: asl 1500m or less on the south sector and 1800m on the north sector, becoming 1500m all around, but 1800m on the east sector.

CLOUDS: favorable conditions for cloud formation on all levels, with cirrus, stratus  and cumulus, mainly on the south sector.

Trend for the next days:

Models forecast a substancial fall on atmospheric pressure already today in the afternoon, also with temperature fall. Stronger winds and rain are expected on the folowing days.