~ Nature's Weather Forecasting Station ~
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Check the weather here~!
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WEATHER OUTLOOK FOR SINGAPORE
13 - 31 JANUARY 2007
Review
A sudden increase of monsoon winds has again affected Singapore during the second week of January 2007. Above average rainfall was recorded over the whole island. The highest rainfall of 290 mm to 310 mm (240% to 260% above average) fell over northern and eastern parts of Singapore around Kranji and Seletar. Rainfall decreased towards the southwest of the island with the lowest rainfall of 160 mm to 190 mm (85% to 120% above average) recorded around Jurong.
Rainfall Distribution Map
Weather Outlook for Next Fortnight
Moderate Northeast Monsoon winds should continue to prevail for the remaining days of the month. Wet weather is likely to affect Singapore and the region initially, and becoming relatively dry and windy in the last week of the month.
During this outlook period, widespread moderate to heavy rain due to Northeast Monsoon surges is expected on 3 to 4 days. In addition, short-duration thundery showers, occurring mostly in the afternoon and early evening are also likely on 4 to 5 days.
With large amount of rain recorded in the first 10 days, rainfall for January 2007 is likely to be substantially above average for whole of Singapore. -
Further Outlook for Singapore
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For the Next 12 Hours
Legend
Fair
Hazy
Cloudy
Partly Cloudy
Rain
Showers
Thunderstorms
Windy
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Worldwide Weather
Southeast Asian Weather
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==reserved==
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Current Rain Radar from Changi Airport
This shows the latest rain intensity map of Singapore and surrounding areas within a 70-km radius.
Click here -
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Meteorological Q&A
What is the coldest temperature recorded in Singapore?
The lowest minimum temperature ever recorded in the month of December is 20.6 deg C ( on 2 Dec 1964), while the lowest temperature ever recorded (since record began in 1929) is 19.4 deg C (on 31 Jan 1934).
Cool weather over Singapore are caused by the following conditions :
i ) periods of cloudy to overcast weather accompanied by rain which blocks out the heat from the sun
ii ) season and prevailing wind
Usually the Northeast Monsoon months of December and January are the cooler months of the year with average highest temperature of 29..9 deg C as compared to 31.5 deg C in the months of April and May, and with average minimum temperature of 23.1 deg C in Dec and Jan as compared to 24.3 deg C in the months of April and May. The early part of the Northeast monsoon (months of December and January) is usually characterised by generally cloudy and windy conditions with rain periods lasting for 2 to 3 days at a stretch.
The cool north-east winds which blow over Singapore during this time of the year originate from the cold winter conditions of the interior of the Asian continent. -
Meteorological Q&A
What are Sumatras?
Sumatras are lines of thunderstorms which usually occur between March and November each year. These squalls (lines of thunderstorms) develop at night over Sumatra or the Malacca Straits and move east towards Singapore and Peninsular Malaysia usually during the pre-dawn and early morning. They are often characterised by sudden onset of strong gusty surface winds and heavy rain lasting from 1 to 2 hours as they move across the island. Maximum gusts of up to 50 knots have been recorded during the passage of a Sumatra squall (Gusts are temporary rise in wind speed). -
Meteorological Q&A
What is Singapore's climate like?
Singapore's average annual rainfall is 2357.8 mm.
Climatologically speaking, February falls in the latter half of the Northeast Monsoon Season and is a relatively dry month. In fact, it has only 11 raindays as compared to 20 days in December, which lies in the wet part of the Northeast Monsoon. Hence, the drier weather in February is expected. March is the last of the Northeast Monsoon months. There is a tendency for the rainfall to slightly increase in March. This results from a gradual increase in shower activity arising from connective heating in the afternoon and early evening over the island.
However, despite the above observations based on long-term records, from year to year there could be variations in the degree of dryness due to annual climatic fluctuations.
In general, dry weather is the result of lack of convection or stable atmosphere which prevents the devleopment of rain-bearing clouds. Vertical uplifting of the air is weak when the atmosphere is stable or this could be cause by descending air over a large area ? as is often observed during periods of widespread haze in SW Monsoon months. Winds blowing from dry regions are usually lacking insufficient moisture thus preventing clouds from forming. Strong winds aloft sometimes inhibit the vertical development of rain-bearing clouds.
Singapore has two main seasons, the Northeast Monsoon (December to March) and the Southwest Monsoon season (May to September), separated by two relatively shorter inter-monsoon periods. Although there are no distinct wet or dry periods, the mean monthly rainfall shows drier weather conditions from May to July and wetter conditions in the months from November to January. . February is also a relatively dry month. The beginning and end of the monsoons are usually not very well-defined. Hence, from year to year, there could be slight delay in the beginning or end of a monsoon period. This probably accounts for the monthly rainfall anomaly experienced from year to year. -
Meteorological Q&A
What are the various sources of meteorological data?
Meteorological data are obtained from various sources such as through a network of weather observational stations located at various parts on the island. These observational stations include synoptic stations, weather radars, weather satellites, upper air observing stations and lightning sensors to name a few. Other sources include an exchanged of meteorological data with other national meteorological centres in the region through the Global Telecommunication System (GTS) of the World Meteorological Organisation(WMO). The Singapore National Meteorological Center is linked to counterparts in the neighbouring countries by medium to high-speed telecommunication circuits which form part of the Regional Telecommunications Network of the GTS. -
Meteorological Q&A
How do we forecast the weather?
Many factors are taken into consideration when a forecast is to be made. One requirement for any forecast is the availability of meteorological data which must be reliable, accurate and regular. With the numerous meteorological data we analyse weather patterns. With the analysed weather charts together with numerical weather prediction products, satellite images, knowledge of the climatology of the area and experience, a forecast is made. Numerical weather prediction products are computer generated forecast models. These run on supercomputers and they provide predictions of on atmospheric vairables such as rainfall, pressure, temperature, wind etc. -
Meteorological Q&A
What is a tsunami?
A tsunami is a series of enormous waves formed in the sea or near the coast and is generated by violent undersea disturbances such as earthquake- induced movement of the ocean floor, landslides and underwater volcanic eruptions. Most tsunamis are caused by earthquakes in the sea that induce movements in the sea floor. From the area where the tsunami originates, waves travel outwards in all directions and can travel great distances. In deep water the tsunami wave is not noticeable, but when it approaches the shore it increases in height. All tsunami are potentially dangerous and can be extremely violent and damaging when they hit the shore.
Not all earthquakes, however, will produce tsunamis. Normally, it would require an earthquake with a magnitude exceeding 7.5 on the Richter scale to produce a destructive tsunami. -
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Overview of Weather for Singapore
3:30 PM SGT on November 15, 2006
81 °F / 27 °C
Mostly Cloudy
Humidity: 84%
Dew Point: 75 °F / 24 °C
Wind: 6 mph / 9 km/h from the South
Pressure: 29.83 in / 1010 hPa
Heat Index: 86 °F / 30 °C
Visibility: 6.2 miles / 10.0 kilometers
UV: 5 out of 16
Clouds: Few 1600 ft / 487 m
Few 2000 ft / 609 m
Mostly Cloudy 18000 ft / 5486 m -
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Weather forecast for the next 3 days
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TUESDAY
Windy with passing showers in the afternoon. 24 to 31 °C
WEDNESDAY
Windy with passing showers in the afternoon. 24 to 32 °C
THURSDAY
Showers with thunder in the afternoon. 24 to 32 °C -
Weather forecast for the Next 3 Hours
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FROM 03:00 PM TO 6:00 PM 29-01-2007
ANG MO KIO Windy
BEDOK Windy
BISHAN Windy
BUKIT BATOK Windy
BUKIT PANJANG Windy
BUKIT TIMAH Windy
CHANGI Windy
CHOA CHU KANG Windy
CITY Windy
CLEMENTI Windy
CHAI CHEE Windy
HOLLAND VILLAGE Windy
HOUGANG Windy
JURONG INDUSTRIAL ESTATE Windy
JURONG EAST/WEST Windy
KALLANG Windy
KATONG Windy
KRANJI Windy
LIM CHU KANG Windy
MACPHERSON Windy
MACRITCHIE RESERVOIR Windy
MARINE PARADE Windy
PANDAN Windy
PASIR PANJANG Windy
PASIR RIS Windy
PUNGGOL Windy
PEIRCE RESERVOIR Windy
PULAU TEKONG Windy
PULAU UBIN Windy
PULAU PAWAI Windy
QUEENSTOWN Windy
SELETAR Windy
SEMBAWANG Windy
SENTOSA Windy
SERANGOON Windy
SIMEI Windy
SOUTHERN ISLAND Windy
TAMPINES Windy
TOA PAYOH Windy
TUAS Windy
TELOK BLANGAH Windy
UPPER BUKIT TIMAH Windy
WEST COAST Windy
WOODLANDS Windy
YISHUN Windy -
Further Outlook for Singapore
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Till 6AM 30-01-2007
Fair and windy
Temperature: 24 to 30 degrees Celsius
Relative Humidity: 55 to 90 percent
High Tide: 2.3 m at 10:25 P.M. -
Climatology of Singapore
Climate of Singapore
Singapore lies just north of the Equator near Lat 1.5 deg N and Long 104 deg E. Because of its geographical location and maritime exposure, its climate is characterised by uniform temperature and pressure, high humidity and abundant rainfall. The climate of Singapore can be divided into two main seasons, the Northeast Monsoon and the Southwest Monsoon season, separated by two relatively short inter-monsoon periods.
Seasons
North-East Monsoon Season - December to early March
Northeast winds prevail, sometimes reaching 20 km/h. Cloudy conditions in December and January with frequent afternoon showers. Spells of widespread moderate to heavy rain occur lasting from 1 to 3 days at a stretch. Relatively drier in February till early March. Also generally windy with wind speeds sometimes reaching 30 to 40 km/h in the months of January and February.
Pre South-West Monsoon - late March to May
Light and variable winds with afternoon and early evening showers often with thunder.
South-West Monsoon Season - June to September
Southeast/Southwest Winds. Isolated to scattered late morning and early afternoon showers. Early morning 'Sumatra' line squalls are common. Hazy periods.
Pre North-East Monsoon - October to November
Light and variable winds. Sea breezes in afternoon. Scattered showers with thunder in the late afternoon and early evening.
Temperature
Diurnal range: Minimum 23 to 26 deg C and Maximum 31 to 34 deg C
Extremes: Minimum of 19.4 deg C and Maximum of 35.8 deg C
Pressure
Diurnal pressure variation of 4 hPa. Maximum pressure usually occurring at 1100 and 2400 Local Time and minimum pressure occurring at 0500 and 1700 Local Time. Extreme pressures recorded are 1,016.9 hPa and 1,002.0 hPa.
Relative Humidity
Diurnal range in the high 90's in the early morning to around 60% in the mid-afternoon. Mean value is 84%, During prolonged heavy rain, relative humidity often reaches 100%.
Rainfall
No distinct wet or dry season. Rainfall maximum occur in December and April. The drier months are usually in February and July. -
hmm... how to c cloudy at nite?
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no moonOriginally posted by BabyLover:hmm... how to c cloudy at nite?
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no stars tooOriginally posted by poon cho tang:no moon
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Hazy again
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