Meteorological Conditions and Firein South East Asia
27 June 2000
The Meteorological Service of Singapore reports on 27 June 2000 for the South East Asian region: “Isolated thundery showers were observed oover southern Sumatra. Most parts of Kalimantan remain dry. Isolated hot spots were detected in central Sumatra and western Borneo. The region remains generally free from smoke haze.” Forecasts of winds and surface pressure are also available.
Fig. 1. Regional Surface Winds and Haze/Fire Map, 27 June 2000
(Source: Meteorological Service of Singapore)
The same meteorological service also provides rainfall-record charts for selected locations in Kalimantan and Sumatra with information about the mean annual rainfall and the actual monthly and weekly records for this year.
Fig. 2. and 3. Rainfall charts for Kalimantan and Sumatra
(Source: Meteorological Service of Singapore)
The GFMC displays selected and daily updated global and Asia-Pacific Experimental Climate Prediction Center (ECPC) Fire Weather Forecasts (Fig.4-9). These examples allow a quicklook and provide daily and weekly total forecasts, and forecasted monthly totals (for next month). For background information refer to the ECPC products description page.
tomorrow next week next month
Fig. 4.-9. Fire Weather Index (FWI) forecast for tomorrow (left), next week (center) and the predicted FWI total for next month (right) for the Western Pacific and the Pacific Ocean. The daily forecast refers to 12:00 hrs noon UTC (Greenwich) time; the weekly total forecast and the monthly forecasted total refer to 00:00 hrs UTC, which is local noon at dateline (180° longitude). Forecast time is 12:00 hrs noon UTC (Greenwich) corresponding to local evening time in mainland and insular SE Asia (updated: 27 June 2000).
The ASEAN Fire Weather Information System (ASFWIS) is a co-operation between ASEAN and the Canadian Forest Service. It provides maps describing the current fire weather situation in South East Asia. This system is based upon the Canadian Forest Fire Danger Rating System (CFFDRS) (for further infomation to the CFFDRS refer to ASFWIS). Studies have shown that the CFFDRS is applicable outside of Canada. Currently it is also used in a modified form in New Zealand (see References). In New Zealand the Fire Weather Indices Fine Fuel Moisture Code (FFMC) and the Initial Spread Index (ISI) represent the fire danger in the scrublands. The Duff Moisture Code (DMC) is also applicable in South East Asia, because it potentially describes the moisture state of the upper peat layers in peat and peat swamp forests. All three parameters may serve as a suitable indicator of forest fire danger in South East Asia.
According to the ASFWIS for 26 June 2000 these parameters show various fire weather conditions over South East Asia:
Fine Fuel Moisture Code
Duff Moisture Code
Initial Spread Index
Fire Weather Index
Fig. 10. – 15. Output maps of the ASFWIS (26 June 2000)
The ASEAN Haze Action Online provides the following information:
Monitoring: Hyperlinks to institutions involved in regional monitoring and prediction of fire and smoke haze
Intranet: Information and possible participation in the ASEAN Haze Action Online Intranet Information Services (for associated registered participants)
Mobilization Plan: Model Fire Suppression Mobilization Plan
Inventory: Inventory and analysis of forest and land fire suppression capabilities
Haze Forum: Communication platform on fire and smoke-haze issues in the ASEAN region
Calendar: Fire and haze-related events can be identified by a search modus
TheForest Fire Prevention and Control Project (FFPCP) in Palembang (Sumatra) provided a fire overview map on 20 June 2000.
The Southwest Monsoon has set in and with it the onset of generally dry weather over Singapore and the surrounding region. As the south-west winds increase in strength and persistency in the next 3 to 4 months, periods of dry weather can be expected from time to time. With each spell of relatively dry weather, increased forest fires and accompanying hotspots are likely. However, the prolonged widespread dry weather experienced in 1997 as a result of the strong El Nino is not likely to develop this year. As the current La Nina continues to weaken for the rest of the year, weather conditions are expected to return to normal. Hence in the current Southwest Monsoon season, while weather conditions are expected to be generally dry, occasional widespread squally pre-dawn and early morning showers are expected in the region on about 3 to 4 times per month between May and October. The occurrence of the widespread showers should help to prevent the recurrence of a similar 1997 widespread and prolonged smoke haze episode in the region. (Source: Meteorological Service of Singapore)
For further information, please also have a look to the current and archived IFFN Country Notes.