Heavy Rainfall Expected In Most Regions Of Thailand

[Jai Dee]

Heavy rainfall expected in most of the regions

The Meteorological Department has issued a warning of thunderstorm in the lower northeastern, eastern, southern and central regions including Bangkok and nearby provinces.

The department stated that the winds from the South and Southeast are bringing in humidity from the Gulf of Thailand to the regions. Thunderstorms are therefore expected in around 10 to 30 percent of the affected areas.

Motorists are advised to drive with caution as certain routes can be slippery due to heavy precipitation.

Source: Thai National News Bureau Public Relations Department - 22 January 2007

[DragonQuest]

its about time, i havenet seen rain in over 3 months in bangkok lol, but i see and hear the rain now, i love the fresh air, it was drizziling in kao samed though nid-noy last week, when is the rainy season ?

[Jai Dee]

when is the rainy season ?

You get what's called the "mango rains" in April/May... but the wettest months in central and northern Thailand are probably August and September.

[billd766]

Not this week please.

We are starting to harvest our cassava.

At the end of the month it would be fine for a week or two.

[singa-traz]

http://www.weather.go.th/en/province.php?id=37

[chownah]

Not this week please.

We are starting to harvest our cassava.

At the end of the month it would be fine for a week or two.

Bild766,

I'm interested in how you harvest cassava but it is off topic for this thread....would you consider going to the farming forum and starting a topic with a short explanation of how you do it...or finding another cassava related thread and adding your experineces?

Chownah

[Robski]

Big black clouds coming over Pattaya, time to put the coffe on, play some chilled out vibes and watch the rain on a lazy afternoon.

[Aujuba]

Just as I finished reading this the rain started. I hope this washed away the bland and brings the green of the trees back. Looks like I may get wet on the way home today.

[robint]

quote

http://www.weather.go.th/en/province.php?id=37

unquote

I wanted to find out the weather forecast for todays heavy rain as I proposed travelling north eastwise

here is some debumfp, as the charts are not layman friendly

quote

dBZ is the unit used we use for reflectivity in meteorology. dBZ is related to the number of drops per unit volume and the sixth power of their diameter and it can be related to rainfall rate through an empirical relationship called a Z-R relationship.

In the table below a guideline on the interpretation of dBZ factors are given.

dBZ, Rain rate(mmh -1), Comments

10 ~0.2 Significant but mostly non-precipitating clouds

20 ~1 Drizzle, very light rain

30 ~3 Light rain

40 ~10 Moderate rain, showers

50 ~50 Heavy rain, thundershowers, some hail possible

60 ~200 Extremely heavy rain, severe thunderstorm, hail likely

Please take note that various atmospheric and environmental conditions can negatively affect radar data and caution should be exercised when interpreting the information. Some of these effects include:

* returns from mountains and other non-meteorological targets,

* attenuation of the radar signal when viewing weather echoes through areas of intense precipitation(with C-band radars),

* temperature inversions in the lower layers of the atmosphere which bend the radar beam in such a way that ground clutter is observed where normally not expected,

* the "bright band" which is a layer of enhanced reflectivity caused by the melting of ice particles as they fall through the OoC level in the atmosphere and which can result in over-estimation of rainfall.

unquote

its surprising how different radar stations show different pictures of the same are (one says its raining and the other does not show any rain??)