Torrential rains of 40+ inches deluge Thailand

By: Dr. Jeff Masters , 4:47 PM GMT on March 31, 2011

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Torrential rains in excess of 40 inches (1.016 meters) deluged Thailand's Malay Peninsula this week, triggering floods that have killed at least 17 people. The floods submerged 61 major highways, affected 840,000 people, and forced the helicopter rescue of thousands of stranded tourists. Late March is usually a fairly dry time of year for Thailand, but near-record cold air settled in over the region this week, dropping temperatures to 5 - 10°C (9 - 18°F) below average. Heavy storms accompanied the cold air, and downpours with rainfall rates of up to 2 inches/hour affected the region for many days in a row. Sea surface temperatures of the waters surrounding the flood regions were near average, but were plenty warm enough to supply copious moisture to feed the storms. Flood recovery will slowed by additional moderately heavy rains of 3 - 5 inches expected to fall over the flooded region during the next week, according to the latest precipitation forecast from the GFS model.


Figure 1. The Multisatellite Precipitation Analysis (TMPA) analysis above was made using data that were calibrated using data from NASA's TRMM satellite. This analysis shows that rainfall for the past week over the Malay Peninsula was particularly extreme with totals of almost 1200 mm (~47 inches). TRMM satellite data revealed that rainfall in that area was frequently falling at a rate of over 50 mm/hr (~2 inches/hr). Image credit: NASA.

Jeff Masters

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Below are the Upcoming next round of Severe Weather for next week. Seems this round so far is not deep into Florida like today was, but we need to watch as the models will change some.






I have posted the below many times and few comment on this, but below is a graphic that often shows where the severe stuff is where you see the collision of winds like is in South Florida now.




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Quoting RastaSteve:


My man Pat is on top of it as always. This guy is a great for the blog I tell ya. Hey pay amazing hail video you posted the other day reminds me of the hail storm in May 1992 here in C FL while I was a little kid.


Yep PatRap stays on top of things. I posted the same last nite that the GFS has the same set up coming next week. Gotta say the models did a incredible job with this one 5-7 days out. Gotta see if they do the same with this one as well.
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Quoting RastaSteve:


If you are referring to me then you are wrong as the reason said that is because I saw the wind velocities on the NWS site and it was showing a solid line of 70 mph heading for the Nature Coast of FL. The damage in my area is very bad and there are still tens of thousands without power since yesterday. Never seen anything like this other than the hurricanes of 2004. Some on here flat out need to get a grip. It is sad to see how some act on here. I am very passionate when it comes to wx and i think some get offended if we talk about weather other than politics which seems to be an ongoing depressing political battle nearly everyday.
????.I hate when politics are being talked about on the blog.I really do hate it.I to have a passion for weather(mostly hurricanes).This past summer was a bad one for D.C when it came to server storms.Some of the trees I have come to love in my neighborhood were taken away when server storms passed by.We also saw wind gust approch the 60-70 mark as well.It was terrible outside.Even in January of this year the the tree in my front yard was taken down thanks to heavy snow.I decided to take the braches,and save them.
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Quoting RastaSteve:


Yeah Reed said that but i think he was referring to the extent of damage which is everywhere not just in confined locations. We had some unconfirmed wind gust of 100 mph near me yeasterday. I'm glad to see my good friend TampaSpin made it out safe today.


Thanks, i agree i have known Reed for some time and he is a very brite and smart person. I agree, he used the word in historic in the current damage that was happening at that time. Some on here just try to pick and pluck words that bloggers use just for their on self attention it seems.
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Quoting atmoaggie:
Busier'n [snip]. Little time for anything leisurely. But, is much better than bored and starving.

And U?


good atmo

cat5...you shoulda seen Moncks Corner 20 years ago
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Quoting TampaSpin:



Still some very strong storms south of Sarasota.


Looks like South Florida is going to get the worst of it overnight.

I'm out for the night. Hopefully the storm won't be that bad. Night y'all.
Member Since: October 8, 2008 Posts: 14 Comments: 4553
Quoting iceagecoming:



More than 61 feet of snow has fallen in the Sierra high country so far this season, second only to the 1950-51 season when a total of 65 feet fell, according to records kept by the California Department of Transportation. While spring has arrived, the Sierra typically gets some snow in April, bringing the prospect of an all-time record.

Link

I guess it all depends on which record is in focus?

Fascinating:

61 FEET of snow???
I had no idea the snowfall was so heavy there.
Must be Incredible to live in a place like that.
I would probably have to put shoes on...
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Quoting TampaSpin:



Still some very strong storms south of Sarasota.


Possibly a S.Thunderstorm Watch will be issued later tonight.
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Quoting RastaSteve:


If you are referring to me then you are wrong as the reason said that is because I saw the wind velocities on the NWS site and it was showing a solid line of 70 mph heading for the Nature Coast of FL. The damage in my area is very bad and there are still tens of thousands without power since yesterday. Never seen anything like this other than the hurricanes of 2004. Some on here flat out need to get a grip. It is sad to see how some act on here. I am very passionate when it comes to wx and i think some get offended if we talk about weather other than politics which seems to be an ongoing depressing political battle nearly everyday.



Yeppers....we have the GW and AGW peeps...that think they know everything...and the reality too it we really know little with what time has been documented with facts and speculation.
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336. HadesGodWyvern (Mod)
Tropical Cyclone Warning Center Darwin
Tropical Cyclone Advice #9
TROPICAL LOW 25U
11:00 AM CST April 1 2011
=======================================

At 9:30 AM CST, Tropical Low (1001 hPa) located at 11.9S 129.7E or 140 km west northwest of Darwin and 425 km northeast of Kalumburu has 10 minute sustained winds of 20 knots with gusts of 45 knots. The low is reported as moving west at 5 knots.

Dvorak Intensity: T1.5/1.5/D0.5/24 HRS

The tropical low is expected to turn towards the southwest and develop into a tropical cyclone as it nears the north Kimberley coast on Saturday morning.

GALES with gusts to 110 kilometres per hour are expected to develop between Wyndham and Mitchell Plateau on Saturday morning and may extend inland to Kununurra if the cyclone takes a more southerly track. Gales may extend further west to Cockatoo Island during Sunday as the cyclone moves further southwest along the northwest Kimberley coast.

Tides will be HIGHER THAN NORMAL between Wyndham and Kalumburu on Saturday.

HEAVY RAIN is expected to cause flooding in the north Kimberley region during Saturday.

Tropical Cyclone Watches/Warnings
====================================
A Cyclone WARNING has been declared for Western Australian coastal and island areas from Mitchell Plateau to the WA/NT Border, including Kalumburu, Wyndham and Kununurra.

A Cyclone WATCH is now current from Mitchell Plateau to Cockatoo Island.

The Cyclone WATCH from Daly River Mouth in the Northern Territory to the NT/WA border has been cancelled.

Forecast and Intensity
=======================
12 HRS: 12.2S 128.7E - 30 knots (Tropical Low)
24 HRS: 12.8S 127.5E - 35 knots (CAT 1)
48 HRS: 13.8S 124.9E - 40 knots (CAT 1)
72 HRS: 14.5S 122.6E - 50 knots (CAT 2)

Additional Information
=======================

The LLCC has been relocated to a position west of Cape Fourcroy based on surface observations and radar animation. Convection has redeveloped offshore with a small curved band feature to the west of the LLCC, possibly associated with a displaced middle-level circulation. Dvorak analysis yields DT of 1.5 from 0.25 wrap curved band. MET=2.0 but FT=PAT=1.5. Vertical wind shear over the area has decreased so the environment remains suitable for TC development. A standard development rate indicates TC formation is possible Saturday morning near the north Kimberley coast.

Mid-level steering is dominated by a ridge oriented ENE/WSW producing a steady forecast track towards the southwest, passing close to the northwest Kimberley coast during Saturday and Sunday.

The next tropical cyclone advice from Tropical Cyclone Darwin on Tropical Low 25U will be issued at 4:00 AM UTC..
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Still some very strong storms south of Sarasota.
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Water Temps are heating up across the southern Florida coast.
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More than 61 feet of snow has fallen in the Sierra high country so far this season, second only to the 1950-51 season when a total of 65 feet fell, according to records kept by the California Department of Transportation. While spring has arrived, the Sierra typically gets some snow in April, bringing the prospect of an all-time record.

Link

I guess it all depends on which record is in focus?

Fascinating:
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Quoting twincomanche:
Thanks I thought I missed some important item in child upbringing.
You're not alone. I was about to inquire via WUmail, should the secret have a user limit.
;-)
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Quoting washingtonian115:
If this comment was referring to me(yeah I'll admit it).I was actually refering to a few bloggers that made it seem like the pits of hell opened up,and was coming to get them(they know who they are).And yes I have been through plenty of server weather events,and actually over this past summer when I went to Andrews air force base (AFB),a funnel cloud had formed right over me in my family while we were in side of the car.You could actually see the dust rotating and rising up.


Granted someone called this Historic. That was over hype. But, there was a ton of damage today in Tampa/St. Pete area and across the State of Florida. Over Hype is a poor choice of words along with Historic. Maybe commenting on others comments and feelings are better off not said, when the ones saying are those being affected. Just my Opinion tho!
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Quoting twincomanche:
March31

1962


One of the worst tornado disasters in Florida's history occurred when an F3 tornado ripped through Milton, in the northwestern section of the Panhandle. 17 people were killed, 100 were injured, and damage was set at $1.5 million.


That place looks like it is still in 1962...
Not all a bad thing. Just sayin.
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Hey Twin, cancelling kids is only possible when they're not yours. Actually, I manage an after school program and didn't want the kids staying after today in Seminole because parents and the tutors would have been out there in the mix and I wanted them to get home asap. Also would have required a few to drive from home and figured if I didn't want to be out there then I shouldn't expect anyone else to do that either.
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Quoting presslord:


How ah ya, mon?
Busier'n [snip]. Little time for anything leisurely. But, is much better than bored and starving.

And U?
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Quoting TampaSpin:
I read back thru the blog from today and many of you that probably have never been through any kind of severe weather was saying the the things that occurred in Florida today was over Hype. I called a friend today that lives in Indian Rocks Beach. When she answered the phone she was crying relentlessly, when asked what was wrong. She said, "i can't talk, my house has been destroyed by a tornado. I feel like i am lucky to be alive." Gang, that is not over hype if you feel like that. THAT IS REAL LIFE!
If this comment was referring to me(yeah I'll admit it).I was actually refering to a few bloggers that made it seem like the pits of hell opened up,and was coming to get them(they know who they are).And yes I have been through plenty of server weather events,and actually over this past summer when I went to Andrews air force base (AFB),a funnel cloud had formed right over me in my family while we were in side of the car.You could actually see the dust rotating and rising up.
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Quoting atmoaggie:
Couldn't even do that right, eh?


How ah ya, mon?
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Evening Folks!

Its been quite a awhile since my last visit. Lake O should be receiving some good amount of rainfall tonight.
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Quoting cat5hurricane:

I'm still here. You missed out on some good hurricane talk earlier regarding the upcoming season, wash.
For some odd reason I can never catch it.But even when I bring it up no one wants to engage in the conversation.
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Quoting presslord:
r2
Couldn't even do that right, eh?
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Am really glad to hear that Rasta since I cancelled all of my kids in Seminole County today and it was a ton of work to do it.
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r2
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r2
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About JeffMasters

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.