Bolt
from the blue
Just another working day became a nightmare,
leaving a village in shock and a family in shambles. Kumudini Hettiarachchi
reports
Beware
of 'thunder days'
Fifteen deaths due to lightning in March and April is the
toll the Met Department has recorded from the media. There
are no other statistics.
The inter-monsoon
periods of March-April and October-November are the prime
time for lightning.
"There
is a high variability in lightning. It is unpredictable because
conditions such as rainfall and 'thunder days' must be there.
This year there seem to be more thunder days than last year,"
says Met Deputy Director K.R. Abeysinghe.
In the
Nochchiyagama lightning incident, he says the farmers would
have been near some metal object.
"They seem to have been hit by 'ball lightning' and may
have been holding the metal sickles. The threshing machine
which is of metal may have been parked near them," he
adds.
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There were no
crackers or raban in the homes clustered around Ilandagahawewa Handiya
deep in the North Central Province this Avurudu. No pot of milk
boiled or kiribath with newly-harvested rice cooked over a single
hearth in this farming village. It is a village in shock, in mourning
over a bolt from the blue.
There are only
sighs as the women shake their heads sadly and whisper that such
a thing has never happened in living memory or even in the time
of their muthun miththo (ancestors). They wipe their tears with
the edge of their cloths and with stoic resignation wend their way
to the fields. The rains have come and if they do not work fast
and furiously, the paddy crops will be destroyed. The toiling peasantry
of this village off the Nochchiyagama-Anuradhapura Road have to
cut the paddy before more damage is done.
This season,
the rains have not only wrought havoc in their paddy fields but
also brought a new and terrible phenomenon, one that most of them
cannot grasp. The rains have brought akunu (bolts of lightning)
and death.
April 12, was
another "working day" for Chandrapala Jayawardene and
his precious family. His wife Padmawathie, 32, was up at the crack
of dawn to cook the rice and dhal she was taking with her to the
fields for a whole gang of them. She was in a rush, but their toddler
would not wake up. So she told Chandrapala to bring him later to
his sister's house, where both their children would stay, while
nine men and women got into the fields and gathered the harvest,
in an attempt to beat the rains before the Avurudu.
Then she was off with two of her nephews in a tractor to the family's
wela, four miles away in Maha Lindawewa, through the unspoilt, stark
beauty of the dry zone.
"Before
she left home, she kept aside some new rice to pound and make kavum
for our two children, family and friends," says Chandrapala,
making futile attempts to still the sobs wracking his very being.
Theirs was a great love affair from the time he served as a policeman
in Buttala. They met in the south, fell in love and married. Padmawathie
then accompanied her husband to his native village and adopted it
as her own. He built their home while he was a policeman, but the
little touches and improvements were hers with the money they made
from working the fields.
Yes, they worked
the fields side by side, ploughing, sowing, spraying thel and bringing
in the harvest. She was also good in the kitchen and could make
the simplest of meals taste delicious.
She and the
others began work in the fields that fateful day after a quick breakfast
and kahata. When he joined them they were half way through. The
work was backbreaking, but banter and laughter lightened the load.
There were nine of them in all - brothers, in-laws and nephews;
five men and four women. They were bent double in the mud, cutting
the golden paddy ears with sickles and feeding them in bundles to
the threshing machine. Then the sky opened up, not in torrents,
but as a steady and light drizzle. They continued to work awhile,
then sought shelter in the hut in the middle of the wela. They hadn't
had their lunch though it was late afternoon. They wanted to see
the work through, for the next day they would down their sickles
during the nonagathe, and prepare for Avurudu.
The group trickled
into the tiny, sides-open hut and "ankura gahagena" (squatted)
chatted. Chandrapala was turned away from the others. Suddenly,
a deafening noise, like a massive bomb shook the area. The next
thing he knew all were thrown on the ground. Padmawathie was not
breathing, but there were no injuries. His nephew, Anura Dikkumbura,
was bleeding from the ears and nose. In a daze, he pressed his beloved
wife's chest, then put her across his shoulder and ran through the
fields to the road, from where he rushed her to the Ranawarawa Hospital
on a motorcycle. But she was already dead.
His lathoniya
(agonized screams) alerted the villagers and they rallied round
taking the others to hospital. Anura, 22, too was already dead.
"Gini bolayak
kelinma avith, puduma saddayakin pipuruwa. (A ball of fire came
straight at us and burst with a thunderous sound)," says J.M.
Somawathie, 50, who was seated between Padmawathie and Anura. She
thinks she fainted and got up when Chandrapala started screaming.
When she came
around she was standing, recalls Somawathie, still trembling at
the thought of such a close brush with death. "Immediately
after I couldn't see or hear properly."
T.B. Jayawardene,
lifts up his shirt and shows us the "burnt" marks on his
hip and stomach. He was one of the three people injured in this
"lightning" attack. He was thrown many feet away and felt
paralysed. When the bolt hit, there was no pain, only a sudden numbness.
"I could only move my head", his body had gone limp.
They dragged
him along the fields, as he couldn't get up and put him into a lorry
and took him to hospital. He has just come back from there, still
trying to figure out what hit him.
The fields lie
abandoned and desolate. There are no signs that a bolt of lightning
has passed through, only man's fear, for someone has detroyed the
hut so that it would never be used again. We too have gone off the
beaten track to the fields. How many times would Padmawathie have
trod this path, passing the Yale Gamawewa and taking the bund of
the Maha Lindawewa dotted with white nelum in full bloom? How often
would she have stopped to gaze at the abundant birdlife - a cormorant
stretching its wings on the rotten branch of a palu tree, a flash
of vivid blue as a kingfisher dives for its fishy prey and the long-legged
kana kokku and sudu kokku wading through the shallows looking for
a hapless fish or frog? The beauty is lost on Chandrapala. He refuses
to take us to his fields. He will "never" work those fields
again. He cannot even bear to go there. He will give them on "badda"
and later sell them off. What can he tell his two children, nine-year-old
Thilini and two-year-old Thilina? In the early hours of the morning,
when little Thilina who usually suckles her and sleeps nestled against
his mother, cries out for Padmawathie, what should he do?
Even the heavens
have no answer to that heart-rending and plaintive cry, "Where
is Ammi?"
Lightning:
common myths and truths
By Dr. Chandima Gomes
In Sri Lanka, there are many beliefs and folk stories related to
lightning. As another lightning season is upon us, here are some
common beliefs and myths.
Lightning
is a ball of fire or a ball of melted iron.
No. Lightning
is an electric spark between a cloud and the ground, between two
clouds or between two parts of a cloud.
It is dangerous
to be the tallest protrusion of a landscape during thunderstorm
conditions.
If you are a tall protrusion in a certain landscape your body may
be the unfortunate object that sends the first upward channel that
meets the downward stream of charge from the cloud. Thus in thunderstorm
conditions, it is advisable to avoid standing in playgrounds, seashores,
paddy fields, open boats on rivers or in the sea. Roads with no
structures alongside or swimming in open waters etc should be avoided.
One should also refrain from hiking, working on roofs, on the top
of buildings under construction and on telecommunication, radio
and television towers (even if the structures are lightning protected).
If you are
caught outdoors in an intense thunderstorm it would be better to
get shelter under a tree.
No. The large current that flows along the trunk of a tree as a
result of a lightning strike may reach the ground through your body
when you stand nearby. This is termed a side flash. The number one
rule of lightning protection is not to take shelter under trees
or any other tall structures when lightning strikes.
Caught outdoors
in an intense lightning storm, the best position is to lie down
flat.
No. If you lie down flat in a thunderstorm, lightning that strikes
the ground nearby, may send a current through the soil, which may
enter your body thus damaging many vital internal organs. Thus it
is best to squat and rest your head on your knees.
A person
with wet clothes will not be struck by lightning.
No. However, if the person is struck by lightning then wet clothes
will give him some protection. The lightning current always takes
the best conducting (least resistive) path. When a person is wet,
his external body becomes a good conductor thus the current will
prefer to flow outside the body instead of flowing internally. Thus
you will escape with some skin burns instead of your vital organs
being damaged.
One can avoid
lightning strikes or escape unharmed if wearing rubber footwear
or plastic raincoats.
No. In contrast to the situation where a person touches a live electric
wire, the insulation of rubber, plastic or any fabric cover is not
sufficient at all to give you any lightning protection.
A person
struck by lightning carries a charge in his body for several minutes
so it is dangerous to touch him immediately after the strike.
No. The electrical charge injected into a person by a lightning
current is drained into the earth within a fraction of a second.
Hence, the lightning victim should be attended to immediately and
first aid given as soon as possible.
A single
lightning strike may kill more than one.
Yes. Recently 11 players of a football team in Africa were killed
by a single lightning strike. Also when there are several people
under a tree, several side flashes may leap out of the tree (once
the tree is struck) either killing or injuring all of them. Even
in Sri Lanka, a couple of weeks ago, a single bolt of lightning
killed five people at the same spot.
It is dangerous
to use the telephone during thunderstorm periods.
Yes.
There is a high chance of lightning striking telephone and power
lines which run for miles over the open fields. Once lightning strikes
the telephone network, large waves of current will propagate to
the nearby subscribers through the lines. A person who uses the
telephone during such an instant may be injured or even killed by
this large current.
It is risky
to repair electrical networks (house wiring etc.) during thunderstorm
periods.
Yes. Similar to the above case, a large current may propagate though
a power cable in the event of a lightning strike. This current may
reach a person who repairs the network even if the main switch is
off.
Electrical
equipment is safe if switched off during thunderstorm periods.
No. The lightning current, which may propagate through power cables,
can easily jump across the open switches and enter the equipment.
Thus, it is highly advisable to disconnect your electrical appliances
from the power line (unplug them) during thunderstorm periods. TV
antenna cables should also be disconnected and kept outside the
house.
It is dangerous
to use a needle or sew during a period when lightning is striking
nearby.
May be. Sharp and pointed metallic objects attract lightning more
than blunt and smooth objects do.
There are
certain small areas in the country, which are prone to a high rate
of lightning.
May be. Several people have reported that there are small areas
(especially some villages in Kalutara, Matugama, Horana, Matara
& Matale, which receive a high density of lightning compared
to the other neighbouring areas. These areas are not located in
specific geographical conditions that favour a high rate of lightning
strikes (located at high altitude, isolated hills etc.). More research
is needed to give reasons for this.
Coconut trees
are prone to a high rate of lightning strikes.
Yes. Being a tall tree and having leaves with sharp edges and pointed
ends, a coconut tree may be the object that sends the first channel
to meet the downward channel from the cloud.
A lightning
protection system repels a lightning strike that may come to your
building.
No. Instead of repelling a lightning channel, a lightning protection
system attracts it. However, as the lightning current is safely
driven into earth the building will not be damaged.
A lightning
protection system will completely protect you from lightning.
No. Your building is protected only from direct strikes and probably
from side flashes. Still your building can be penetrated by lightning
currents that propagate along service lines (power, telecommunication
etc.). There are special devices (surge protectors) which prevent
these current impulses from entering your building. The sophisticated
electronics in your building can also be damaged by radiation, which
will be emitted from the lightning flash. This radiation can be
blocked from entering your building by taking measures of electromagnetic
compatibility. Yet despite all these systems still nobody can guarantee
you 100% protection from lightning.
Lightning
has a good side as well.
Yes. Due to the extremely hot conditions imposed by a lightning
flash, Oxygen and Nitrogen combine together to form Nitrous Oxides.
These nitrous compounds dissolve in rainwater and reach the ground
to fertilise the soil.
( The writer is a Chartered Physicist (UK) and Senior Lecturer
in Physics, University of Colombo)
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