Saturday, October 31, 2015

FLood forecasting exercise

I do not want to sound all-knowing, yet through this blog, I will try to document the 5 day weather forecast from @earth.nullschool.net and relate this with the possible water level rise in Marikina River and also Tullahan..
See below weather forecast by earth.nullschool.net from today until after 4 days:
7 8 9 10
Note that this simulation from the above website is just computer made, the parameters are bound to change every hour or so..I do this exercise for curiosity only..
We will observe that the typhoon is continuously going westward to Taiwan and the wind also pulls the monsoon rain which will definitely bring continuous rains until weekend perhaps. It was reported earlier by PAGASA.
Also, at this hour, La mesa dam is already on verge of spilling level..and if this scenario persists, for sure the La mesa dam will continue to overflow until weekend. of course not, we all know that although monsoon is continuous, rains may not dropped continously. But the definite scenario is that flooding will persist until weekend.
Base on this trend, I believe Marikina river will definitely rises up until it reach critical level such that evacuation of people near it will be ordered by local government.
With this continuous rains, slope failures may be happening since the soil gets saturated due to continuous moisture it takes from the rains.
These are all possible scenarios which always happen yearly..I will update this blog for documentation purpose.
Again, I dont want to send wrong information here..Just my way of documenting everything..pardon the technical errors where it occurs.

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