LEH MASSIVE CLOUD BURST DETAILS

FROM METD WEATHER

metdweather.blogspot.com

ANOTHER ARTICLE ON THE CLOUDBURST CAN BE SEEN ON THE LINK GIVEN ABOVE

HOUSES DESTROYED IN LEH

SOURCE- AFP
ITS DIFFICULT FOR ME TO BELIEVE THAT SUCH A MASSIVE CLOUDBURST HAS HAPPENED IN LEH TRIGGERING SEVERE RAINS AND FLASH FLOODS

ACCORDING TO THE LOCALS, THE CLOUDBURST HAPPENED BETWEEN 12-2AM ON FRIDAY AND LASTED FOR A VERY SHORT TIME.

THE TOLL NOW RISES TO 103 AND ATLEAST 370 PEOPLE INJURED AS PER THE STATE POLICE.25 ARMY JAWAN ALSO MISSING

VILLAGES OF PHYANG, CHOGLAMSAR, SABU AND NIMOO ARE THE MOST HIT!

NIMOO IS ABOUT 40KM AWAY FROM LEH

PHYANG IS JUST 10-13KM FROM LEH

LEH AIRPORT HAS BEEN WATER AND MUD LOGGED, LEH NEW AND OLD BUS STAND ARE DESTROYED TOTALLY, ABOUT 200 STUDENTS WERE RESCUED FROM DRUK WHITE LOTUS SCHOOL OR SCHOOL SHOWN IN THE HINDI FILM 3 IDIOTS

THE BSNL LEH OFFICE, CRPF OFFICE, ITBP HEADQUARTER, A POLYTECHNIC COLLEGE IN LEH ALSO AFFECTED.

FAQ-

WHAT ARE CLOUD BURSTS

Cloud bursts are a type of rainfall that happens from high top clouds or cool topped clouds

Mostly it happens from a Cumulonimbus(CB) cloud. Warm, moist air keeps on rising in the clouds thus making an updraft of the clouds as most of the times there is updraft of moist air... This updraft prevents the clouds from causing a downpour as rain or Hails (In the CASE of CB cloud) falls as an downdraft of the cloud or the storm system.

In hilly regions, mountains are a barrier to this updrafts and cause the cloud to release the downdraft suddenly which lasts for a few minutes but causing a precipitation of 100mm in an hour.

Most of the times, there is hail, and thunder with the downdraft along with the rains.

Such cloudburst are most likely to trigger flash floods

THE PREVIOUS RECORDS OF HIGHEST RAIN RATE FROM CLOUDBURST HAS BEEN BROKEN BY THE LEH CLOUDBURST WHICH HAPPENED ON AUGUST 6 2010

Record Cloudbursts

Duration	Rainfall	Location	Date
1 minute	1.9 inches (48.26 mm)	Leh, Jammu Kashmir, India	06 August, 2010
1 minute	1.5 inches (38.10 mm)	Barot, Himachal Pradesh,India	26 November, 1970
5 minutes	2.43 inches (61.72 mm)	Port Bells, Panama	29 November, 1911
15 minutes	7.8 inches (198.12 mm)	Plumb Point, Jamaica	12 May, 1916
20 minutes	8.1 inches (205.74 mm)	Curtea-de-Arges, Romania	7 July, 1947
40 minutes	9.25 inches (234.95 mm)	Guinea, Virginia, USA	24 August, 1906

Source- Wikipedia.org for cloudbursts.

WHAT HAPPENED IN LEH ON 6TH AUGUST 2010

A SUDDEN AND SERIES OF CLOUDBURST STRIKED NEAR KHARDUNGLA PASS WHICH IS AT 18300FT ABOVE SEA LEVEL AND 39KMS FROM LEH.

THIS CLOUDBURST TRIGGERED RAINS IN LEH AND NEARBY AREAS AND AS MOST AREAS HAVE MUD HOUSES THEN HOUSES GOT COLLAPSED,

LEH MANALI ROAD ALSO WITNESSED CLOUDBURSTS NEAR ZINZINGBAR AS A RESULT MANY PEOPLE WERE STRANDED NEAR BARALACHA PASS.

ON LEH-SRINAGAR ROAD,

MANY LANDSLIDES AND MUD SLIDES WERE REPORTED ON THE WAY WITH SOME SEVERE NEAR CAPTIAN'S MODE ABT 100KM FROM SRINAGAR

METEOROLOGICAL HISTORY

SOME HEAVY RAIN PATCHES WERE SEEN IN EASTERN JAMMU AND KASHMIR

WITH SOME STRONG CAPE OVER LEH, THE UPDRAFTS W'D HAVE BEEN MASSIVE WITH TALL CLOUDS THOUGH NOTHING HAS BEEN RECORDED BY ME AS I DIDN'T FOCUS ON J&K LAST NIGHT

Entropy

With a lot of focus being given towards thermodynamics, I wish to write about Entropy

In all, Entropy is a crucial link of 2nd law of thermodynamics which says that Entropy of a isolates system which is not in equilibrium will tend to increase over a period of time, approaching the maximum at equilibrium and the entropy chances dS of a system undergoing infinitesimal reversible process is given by δq / T, whereδq is the heat supplied to the system and T is the absolute temperature of the system

Entropy is nothing but a macroscopic measure of microscopic disorder within a system. To explain in common language its the measure of disorder. Few common examples of deck of cards, Air conditioners, Die can be given

A deck of cards is very organised as all the cards are arranged properly. But when the game is over, the cards are scattered here and there. Thus the disorder happens and we can say entropy increases. A die is used to play board games. Entropy also is the a form of multiplicity

In a two die game, the probability of getting no. above 7 is higher than getting two or three.

Thus the multiplicity of getting a 7-8 no on die is more than getting 2 or 3

Thus Entropy of getting higher nos is more than lower nos

If we consider the property-

Entropy of a system which is isolated and not in equilibrium will increase over a period of time approaching maximum at equilibrium.

Air conditioner or AC has a indoor unit and one outdoor unit. AC is used to cool the air temp. inside the room. But AC does this only when the temperature of the outdoor unit increases

In other language- Entropy of the system can decrease only when it increases the entropy of the other system. thus entropy of indoor unit decreases when it increases entropy of outdoor unit

In Astrophysics and astronomy entropy of the universe is an important concept

Entropy of universe will increase over a period of time . It also means that all the activities happening in universe increase its entropy

A simple example is of thermal radiation. For it we consider a black hole

A black hole though rotating or non rotating has singularity in form of ring or non ring pattern.

Singularity is nothing but the concentration of dense matter or mass in zero volumed region thus making the space time curvature infinite...

Singularity has low entropy as the matter is in a organised fashion. At the microscopic level, there is some particle and anti particle separation and collision happening as per quantum mechanics. Once of this particle falls in the event horizon as seen by external observer and he also sees that the other particle is emitted by black hole, A black hole thus follows a perfect black body principle which allows it to emit thermal radiation at certain temp.

Thus emission of matter will allow the entropy of Black hole to increase.

The question arises is that If the ENTROPY of Universe will increase and is increasing then how come universe has a low entropy or more organised fashion and what about the entropy at the Big bang..

Lets go back in time---

When the big bang happened, matter was scattered everywhere in the universe. Though planets, stars were not formed but there were intense hydrogen clouds..Gravitational energy was the dominant force at that time. And heat energy, light energy were just getting formed due to conversions due to compressions of hydrogen clouds... Thus we can conclude that gravity was the only persistent force and the Universe was hotter at that time..Since then the universe is expanding and becoming cold. If the universe is becoming cool from hot temperatures then it means the universe is releasing its heat in form of heat energy is some other system as as per Second law, a system can become cool only when some other system kept in its contact increases..

Thus the total entropy of universe is increasing as the heat energy is increasing

So when a equilibrium stage happens that is no available energy to do work, there will be only heat energy remaining in the universe...

This is popularly called as Heat Death Of Universe. On the contrary, as most of the energy and heat providers i.e suns will die after many years, the temperature of the universe is expected to go down thus there is a so called - Freeze death of universe concept