FS2004 Weather Problem

Hi,Recently tried flying in real weather and found some inconsistency :-1) When I select real weather with 15 min update, I noticed all weather stations at my home country reported somewhat correct weather except for one -- WSSL. A nearby airport (WSSS - Changi Airport) which is less than 10 nm away reported close to the real weather (which was then overcast) that I observed out of the window towards WSSS. WSSL, however, report clear weather with zero wind and perfect visibility, when definitely it wasn't. This caused problem of flying from overcast with 10 mile visibility from WSSS to perfect weather at WSSL just shortly after takeoff.Also, on other days when the weather is generally fair, the WSSS (Changi) station reports cloud and all quite accurately but visibility was reported as 10 mile, when it looks quite clear to me.Does anyone else encounter this problem?Assuming WSSL weather station is faulty, how do I temporary turn it off so that FS2004 will not pick up this station's weather, so that the other working stations' data can be used for the whole area?Any advice will be much appreciated.skyward