|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
||||||||||
|
MOnthly weather bulletin APRIL 2008 1. SUMMARY Overall, the country received average to very much above average amounts of rainfall. In most places, the temperatures recorded were lower than the long-term average value. The country had also recorded lower than average amounts of daily solar radiation and experienced lower rates of evaporation. 2. RAINFALL The Inter Monsoon season that occurred in March 2008 is a humid season that affects states especially on the west coast of Peninsular Malaysia, still remain until April 2008. The frequency of heavy rains, thunderstorms and strong wind occurred in late evening and early night was higher than usual throughout the period. During this month, the recorded total amount of rainfall over Peninsular Malaysia was average to very much above average. However, there were certain areas in northern peninsular recorded below average amount of rainfall. For Sabah and Sarawak, the recorded total amount of rainfall was average to very much above average except for Miri division in Sarawak that had recorded below average amount of rainfall. As for total monthly rainfall, over Peninsular Malaysia; Petaling Jaya recorded the highest total rainfall of 610.2 mm where as Kuala Terengganu recorded the lowest total rainfall of 47.8 mm. In Sarawak, Bintulu recorded the highest total rainfall of 452.0 mm while Miri recorded the lowest total rainfall of 82.4 mm. For Sabah, Sandakan recorded the highest total rainfall of 246.0 mm while Kudat recorded the lowest total rainfall of 92.4 mm. Based on the classification scheme, there were 10 stations recorded very much above average rainfall, 2 stations recorded above average and 15 stations recorded average rainfall. Meanwhile, there were 4 stations recorded below average rainfall and 2 stations recorded much below average rainfall. It was noted that Petaling Jaya had recorded the highest monthly (610.2 mm) and daily (118.0 mm on 2nd April) rainfall on record for the month of April. Kuala Krai had also recorded the highest daily rainfall with amount of 108.4 mm on 7th April. The number of rainy days for Peninsula Malaysia ranged from 8 to 24 days while for Sabah and Sarawak ranged from 10 to 25 days. 3. TEMPERATURE Generally, most places in the country had lower than average temperature. The mean temperature of the month over lowland areas varied from 26.2°C to 28.3°C as recorded at Senai and Kudat respectively. Kuala Terengganu recorded the largest negative deviation of -1.3°C from normal. The mean minimum temperature over lowland areas varied from 23.0°C (Senai) and 25.1°C (Pulau Langkawi). The lowest temperature of the month was 20.8°C being recorded at Kuching. The mean maximum temperature over lowland areas varied from 30.5°C (Kuala Terengganu) to 33.7°C (Kluang). The highest temperature registered in the month was 35.6°C, in Kuala Krai and Kluang. Cameron Highlands, a highland station, had temperature ranging from 14.7°C to 25.2°C with a mean temperature of 18.2°C. 4. SOLAR RADIATION The country generally received lower than average amount of solar radiation. The daily mean values varied from 14.05MJm-2 at Senai to 22.39MJm-2 at Alor Setar. The largest positive and negative deviations from normal were +2.32MJm-2 and -2.38MJm-2 at Miri and Senai respectively. Cameron Highlands recorded the mean daily solar radiation at 12.92MJm-2 with the deviation of -2.13MJm-2.5 . EVAPORATION Overall, the country experienced lower rates of evaporation during this January. The daily mean evaporation rate over the lowland areas ranged from 2.9mm/day (Muadzam Shah) to 5.5mm/day (Kuala Terengganu). The largest negative deviation was -1.0mm/day (Sandakan) while the largest positive deviation was +0.4mm/day (Kuching). The mean daily evaporation rate at Cameron Highlands was 2.2mm/day.
Figures and tables:
Figure
1 : Rainfall Map for Peninsular Malaysia
|
|||||||||||||||||||||||
