Upload
joel-sabuero
View
221
Download
7
Tags:
Embed Size (px)
Citation preview
2/13/2014 10:05:33 AM
Thunderstorm
is a localized storm
which is
accompanied
with lightning and
thunder and often
brings heavy
rainfall,
hail as well as
strong
gusty winds.
2/13/2014 10:05:40 AM
12,000 m
9,000 m
6,000 m
3,000 m
• Typical thunderstorm
is 5 km. in diameter
• Lasts an average of
30 minutes; although
some may last longer.
• All thunderstorms are
dangerous!!!
2/13/2014 10:05:41 AM
2/13/2014 10:05:41 AM
Air mass - Results from surface heating
Considered self-destructive
The Two Types of Thunderstorms
Steady State- associated with weather systems
2/13/2014 10:05:41 AM
Moisture - to form clouds and rain
The Thunderstorm Recipe
Unstable air - warm air that can rise rapidly
Lift - to form clouds and rain caused by cold or
warm fronts, sea breezes, mountains, or the
sun’s heat
2/13/2014 10:05:41 AM
DEVELOPING STAGE MATURE STAGE DISSIPATING STAGE
The Thunderstorm Life Cycle
PAGASA
DOST “tracking the sky… helping the country”
Thunderstorm Warning Levels:
2/13/2014 10:05:48 AM
PAGASA
DOST “tracking the sky… helping the country”
Thunderstorm Warning Levels:
2/13/2014 10:05:49 AM
PAGASA
DOST “tracking the sky… helping the country”
PAGASA Thunderstorm Warning Levels:
2/13/2014 10:05:49 AM
PAGASA
DOST “tracking the sky… helping the country”
Thunderstorm Warning Levels:
2/13/2014 10:05:49 AM
PAGASA
DOST “tracking the sky… helping the country”
Thunderstorm Warning Levels:
2/13/2014 10:05:50 AM
Thunderstorm
Warning
Thunderstorm is
threatening a specific
area within the next 2
hours.
PAGASA
DOST “tracking the sky… helping the country”
Heavy Rainfall
Lightning/Thunder
Tornado
Hail
Microburst
Thunderstorms can produce dangerous
weather conditions:
2/13/2014 10:05:50 AM
PAGASA
DOST “tracking the sky… helping the country”
Hazards Associated by TSTM:
1) Heavy Rainfall
2/13/2014 10:05:50 AM
PAGASA
DOST “tracking the sky… helping the country”
Payatas Tragedy
Cherry Hill
2/13/2014 10:05:50 AM
2/13/2014 10:05:52 AM
2/13/2014 10:05:56 AM
Hazards Associated by TSTM: 2) Lightning and thunder
PAGASA
DOST “tracking the sky… helping the country”
Hazards Associated by TSTM: 2) Lightning and thunder
The giant spark of electricity
in lightning makes the air very
hot. When the air bumps into
the cooler air around it, this
causes a cracking sound. This
is called thunder.
PAGASA
DOST “tracking the sky… helping the country”
HOW THUNDER OCCURS 2/13/2014 10:05:56 AM
Rapid
expansion/
contraction
of the air
causes
thunder
PAGASA
DOST “tracking the sky… helping the country”
What
Causes
Lightning
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:56 AM
STEPPED LEADER
STEPPED LEADER
AND
STREAMER
UNITES
STREAMERS
THE LIGHTNING BOLT!
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:56 AM
T-STORM DANGER
Lightning may
extend out to 4 kms.
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
5 Ways Lightning Strike People
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
5 Ways Lightning Strike People
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
5 Ways Lightning Strike People
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
5 Ways Lightning Strike People
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
5 Ways Lightning Strike People
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
5 Ways Lightning Strike People
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
Impacts of Lightning
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
Go inside a home or large building, if you can.
Avoid using electrical appliances such as cp’s, telephones, computers, or television sets.
If stuck outside, do not take shelter under a tall, isolated tree.
Stay away from bodies of water.
If you are trapped in an open field and you feel your hair stand on end, lightning is about to strike. Do not lie flat on the ground.
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
IF THERE IS NO SHELTER AND YOU ARE
CAUGHT IN A THUNDERSTORM . . .
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
IF THERE IS NO SHELTER AND YOU ARE
CAUGHT IN A THUNDERSTORM . . .
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
3) Tornado - is a localized windstorm characterized
by a visible funnel-shaped, rapidly whirling cloud that
extends from the base of a dark –cumulonimbus cloud.
• Whirling winds are estimated to exceed 450 km/hr and may last for a few
minutes
• Can strike at any time of the day and can leave a mark of destruction.
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
What are the signs of impending Tornado?
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
HOW
TORNADOES
FORM
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country”
Formation of Tornadoes
2/13/2014 10:05:56 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
Historical Tornado
Occurrences in the
Philippines (1994-2005)
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
UNROOFED HOUSES WITH TOTALLY DAMAGED
HIGH RISK HOUSES UNROOFED SCHOOL BUILDING CAUSED BY
STRONG WINDS OF THE TORNADO SCHOOL BUILDING SLASHED INTO HALF
BY THE TORNADO
DAMAGES DUE TO TORNADO
OCCURRENCE OVER KALIBO CITY
(August 15, 1998)
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
A waterspout is just a weak tornado that forms over water.
What is a waterspout?
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
What is a waterspout?
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
A waterspout is just a weak tornado that forms over water.
What is a waterspout?
2/13/2014 10:05:57 AM
Fair Weather Water Spout
Tornadic Water Spout
PAGASA
DOST “tracking the sky… helping the country”
What is a waterspout?
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
What is a waterspout?
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
What is a waterspout?
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
4) Hail Chunks of ICE from the sky
Hazards Associated by TSTM:
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country”
4) Hail
Hazards Associated by TSTM:
2/13/2014 10:05:57 AM
small balls of ice and
hardened snow that
fall like rain
Hailstorm
A storm that includes
the downpour of hail.
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:57 AM
Hail Formation
PAGASA
DOST “tracking the sky… helping the country”
Hazards Associated by TSTM:
2/13/2014 10:05:57 AM
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:57 AM
MICROBURST
A microburst
is a very localized
column of sinking
air, producing
damaging
divergent and
straight-line winds
at the surface.
PAGASA
DOST “tracking the sky… helping the country” 2/13/2014 10:05:58 AM
MICROBURST
2/13/2014 10:05:58 AM
2/13/2014 10:05:58 AM
2/13/2014 10:05:58 AM
2/13/2014 10:05:58 AM
2/13/2014 10:05:58 AM
2/13/2014 10:05:58 AM
2/13/2014 10:05:58 AM