7-day Forecast For period of Dec 19, 2007 - Dec 25, 2007 Weather Forecast During 19-20 Dec, rather intense northeast monsoon still prevails over southern Thailand and the lower Gulf of Thailand from Surat Thani province and southward while high pressure system still covers upper Thailand. Isolated heavy rain is expected over southern Thailand and wave height 2-3 meters is likely in the lower Gulf. During 21-23 Dec, the northeast monsoon and high pressure system over Thailand will weaken. Slight increasing in temperature and the sea wave in the lower Gulf of Thailand will decrease. During 24-25 Dec, another surge of moderate high pressure system from China will extend its ridge to cover northeastern Thailand and the South China Sea. 1-3 degree drop are expected over the areas. Warning During this period, all form of transport in the North should beware of thick patches due to poor visibilities and people in the risky area over Pattani, Yala and Narathiwat should beware of flooding conditions. Strong wind-wave in the lower Gulf of Thailand, all ship in this area should proceed with caution during 19-20 Dec. Northern Part Morning fog and thick patch in various areas. Cool, minimum temperature 16-23 C. Cold in the mountain tops, Minimum temperature 8-12 C. Northeasterly winds 10-25 km/hr. Northeastern Part Morning fog and cool. Minimum temperature 18-23 C. Cold in mountain tops, minimum temperature 12-16 C. During Dec 24-25, 1-3 C drop. Northeasterly winds 15-30 km/hr. Central Part Morning fog and cool in the upper part. Minimum temperature 21-23 ?C. Slight increasing in temperature During Dec 20-23, Northeasterly winds 15-30 km/hr. Eastern Part Cool in the upper part, minimum temperature 22-23?C, with morning light fog and isolated light rain mostly the coastal areas. Northeasterly winds 15-35 km/hr. Wave height about 1 meter and about 2 meters off-shore. Southern Part (East Coast) During Dec 19-20 and 24-25, scattered thundershowers with isolated heavy rain from Surat Thani province southward. Northeasterly winds 20-40 km/hr. Wave height 2-3 meters. Except for, during Dec 21-23, widely scattered to scattered thundershowers. Northeasterly winds 15-35 km/hr. Wave height 1-2 meters. Southern Part (West Coast) Widely scattered to scattered thundershowers mostly in the lower part throughout the periods. Northeasterly winds 15-35 km/hr. Wave height about 1 meter and about 2 meters off-shore. Metropolitan Morning light fog. Minimum temperature 23-26 ?C, and partly cloudy. Northeasterly winds 15-30 km/hr. Thai Meteorological department (02) 398-9874