Meteorological Conditions in South East Asia: 16 August 1999

Meteorological Conditions in SouthEast Asia

16 August 1999


The Meteorological Service of Singapore reports on 15 August 1999 for the South East Asian region: “Most parts of central and southern Sumatra were cloud covered. So too was western and most parts of central Kalimantan. Few hot spots were observed in northern Sumatra”.

click here to enlarge (30 KB)

Fig.1. Regional Surface Winds and Haze/Hot Spot Map, 15 August 1999
(Source: http://www.gov.sg/metsin/hazed.html)
Forecasts of winds and surface pressure are available at http://www.gov.sg/metsin/flm.html

A special site dedicated to haze/smoke, entitled with the same name HAZE, gives further information to the current haze situation over South East Asia and SEAsia haze related sites.

The GFMC displays selected and daily updated global and Asia-Pacific Experimental Climate Prediction Center (ECPC)  Fire Weather Forecasts (Fig.2-7). These examples allow a quicklook and provide daily and weekly total forecasts, and forecasted monthly anomalies (for this month). For background information refer to the ECPC products description page.

maps for Western-Pacific
lately not available maps for Western-Pacific
lately not available maps for Western-Pacific
lately not available

click here to enlarge (20 KB) click here to enlarge (21 KB) click here to enlarge (21 KB)

tomorrow this week this month

Fig.2-7. Fire Weather Index (FWI) forecast for tomorrow (left), this week (center) and the predicted FWI anomaly for this 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 anomaly 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: 16 August 1999).
(Source: http://meteora.ucsd.edu/ecpc/)

The ASEAN Haze Action Online provides the following information:

  • Monitoring: Hyperlinks to institutions involved in regional monitoring and prediction of fire and smoke haze
  • Haze News: ASEAN Transboundary Haze Update (updated daily)
  • 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

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 15 August 1999 these parameters show various fire weather conditions over South East Asia.

click here to enlarge (25 KB)

current map
(15 August)
not available

Fine Fuel Moisture Code Duff Moisture Code Drought Code

current map
(15 August)
not available

Initial Spread Index Buildup Index Fire Weather Index

Fig.8-13.  Output maps of the ASFWIS, 15 August 1999

The latest NOAA14 satellite images show hot spot locations in Sumatra and Kalimantan. “Hot spots” can be identified as red dots.

click here to enlarge (270 KB) click here to enlarge (332 KB)

Fig.14. and 15. Latest NOAA Satellite images of Sumatra and Kalimantan, 14 August 1999
(Source: http://www.gov.sg/metsin/hazed.html)

The Indonesian Meteorological Agency Badan Meteorologi dan Geofisika publishs the Indonesia Daily Forecasting for 16 August 1999. For the representative selected areas metereological data are provided as follows:

Palembang Samarinda Ujung Pandang Dili Bandung Weather condition rain rain cloudy cloudy cloudy Temperature (min-max °C) 23-33°C 23-31°C 21-33°C 19-30°C 19-29°C Humidity (min-max %) 55-98 55-90 40-93 42-85 47-89

The Forest Fire Prevention and Control Project (FFPCP) in Palembang (Sumatra) provides a fire overview map on 12 August 1999.

click here to enlarge (11 KB)

Fig.16. Fire Overview Map for 12 August 1999 of the FFPCP project in Palembang
(source: http://www.mdp.co.id/ffpcp/overview.htm)

The newest fire overview map for the Integrated Forest Fire Management (IFFM) project in Kalimantan shows 123 hotspots on the 13 August 1999. Cloudy conditions over East Kalimantan.

click here to enlarge (30 KB)

Fig.17. Fire Overview Map for 13 August 1999 of the IFFM project in Samarinda
(Source: http://www.iffm.or.id/hotspots_map.htm)

Summary: Although the current fire weather conditions do under normal conditions not favour extensive land clearing by fire or escaping wildfires in Indonesia, the consequences of the large wildfires of 1997-98 must been taken into consideration. These fires had caused extensive degradation of primary and secondary forests along with the spreading of “alang-alang” (Imperata cylindrica) grasslands. These grasslands facilitate the spread of uncontrolled fires over large areas.

See also the IFFN Country Notes.


Print Friendly, PDF & Email
WP-Backgrounds Lite by InoPlugs Web Design and Juwelier Schönmann 1010 Wien