Meteorological Conditions in South East Asia: 23 June 1999

Meteorological Conditions in SouthEast Asia

23 June 1999

The Meteorological Service of Singapore reports on 23 June 1999 for the South East Asian region: “A few isolated hot spots were observed over Borneo. Cloudy conditions were observed over northern Sumatra”.

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Fig.1. Regional Surface Winds and Haze/Hot Spot Map, 23 June 1999

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 the next month). For background information refer to the ECPC products description page.

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tomorrow this week next month

Fig.2-7. Fire Weather Index (FWI) forecast for tomorrow (left), next week (center) and the predicted FWI anomaly 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 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: 22 June 1999; no new update from 23 June was possible).

The Indonesian Meteorological Agency Badan Meteorologi dan Geofisika publishs the Indonesia Daily Forecasting for 24 June 1999. For the representative selected areas metereological data are provided as follows:

Palembang Samarinda Ujung Pandang Dili Bandung Weather condition cloudy rain cloudy rain cloudy Temperature max (°C) 34°C 32°C 31°C 31°C 28°C Humidity (min-max %) 50-95 60-95 60-90 55-85 50-85

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

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Fig.8. and 9. Latest NOAA satellite images of Sumatra and Kalimantan, 22 June 1999

The Forest Fire Prevention and Control Project (FFPCP) in Palembang (Sumatra) provides a new fire overview map on 22 June 1999.

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Fig.10. Fire Overview Map for 22 June 1999 of the FFPCP project in Palembang

The latest fire overview map for the Integrated Forest Fire Management (IFFM) project in Samarinda (East Kalimantan) is shown on 15 June 1999.

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.

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