Early Warning System in Lao PDR - GFDRR
Early Warning System in Lao PDR - GFDRR
Early Warning System in Lao PDR - GFDRR
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Flood Forecast<strong>in</strong>g<br />
Flood Forecast<strong>in</strong>g<br />
The preparation of daily<br />
flood bullet<strong>in</strong>s is<br />
completed at 10:00 am.<br />
The product of flood<br />
forecast<strong>in</strong>g lead time is 48<br />
hours (from 7:00 am today<br />
to 7:00 am day after<br />
tomorrow) and update<br />
daily. The flood forecast<strong>in</strong>g<br />
is ma<strong>in</strong>ly water levels and<br />
the forecast<strong>in</strong>g <strong>in</strong>cluds<br />
only 6 stations<br />
( Luangprabang, Vientiane,<br />
Paksane, Thakek,<br />
Savanakhet, and Pakse)<br />
HVT, forecast = (HLB, yesterday – HLB, day before yesterday)*0.35 + HVT, today<br />
Where:<br />
HVT = water level observes on 7:00 am (local time) at hydrological station Vientiane Km4<br />
HLB = water level observes on 7:00 am (local time) at hydrological station Luangprabang
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