This is a ppt for reporting

1. GROUP 1
What to do during typhoon
GROUP 2
What to do before typhoon
GROUP 3
What to do after typhoon

2. T Y P H O O N S

3. TYPHOONS
are also known as
tropical cyclones. A
tropical cyclone is a
kind of weather
disturbance and it is a
natural phenomenon.

4. A typhoon forms when winds
blow into areas of the ocean
where the water is warm.
These winds collect moisture
and rise, while colder air
moves in below. This creates
pressure, which causes the
winds to move very quickly.
The winds rotate, or spin,
around a center called an eye.
The more warm air and
moisture there is, the more
intense the winds.
HOW TYPHOONS
DEVELOP?

6. 1. It's development- when a
typhoon is develops into
one
2. It's maximum strength-
When a typhoon packs up
into its maximum strength
3. It's disintegration- when
a typhoon disintegrates.
Three(3) Phases of
a Typhoon
Origin and Path or
Philippine Typhoon
-Typhoons are common from June
to October.
-These typhoons all come from the
Pacific Ocean in the east.
-Typhoons carry winds lf 120 kph
or more.
-Typhoons move in circles with a
windless eye of the typhoon
moving to the west or northwest
with a strength of 17 to 25 kph.

7. Super typhoon has maximum
sustained 1 minute mean surface
winds of 242 kph or greater.
1. Tropical Depression- when the
maximum wind in the center is less
than 63 kph.
2. Tropical Storm- when the maximum
wind is from 63 kph to 118 kph near the
center.
3. Typhoon- when the maximum wind
near the center is greater than 118 kph.
Typhoons
Classification
Interpreting Public
Storm Signals
A. Public Storm Signal No. 1
- has maximum winds of 30 to 60 kph
and maybe expected within 36 hours.
B. Public Storm Signal No. 2
- has winds of greater than 60 kph up
100 kph and may be expected in the
least 24 hours.
C. Public Storm Signal No. 3
- the winds are greater than 100 kph
up to 185 kph and may be expected in
at least 12 hours.
D. Public Storm Signal No. 4
- has strong winds of more than 185
kph and may be expected in at least 8
hours.

8. PRECAUTIONARY MEASURES
Warnings issued by the PAGASA regarding the occurrence of the
typhoons.
1. Sever Weather Bulletin- is issued to disseminate tropical cyclones
and there are two types:
1.1 The alert bulletin is issued every twelve hours at 11:00 AM and
11:00 PM.
1.2 The warning issued every six hours at 4:00 AM, 11:00 AM, 4:00 PM
and 11:00 PM
2. Torpical Cyclone Warning- is issued to provide details of a
tropical cyclone location, intensity, size and movement.
3. Tropical Cyclone Formation Alert - issued by the Joint Typhoon
Warning Center(JTWC) advising the public of the possible or
probable formation of a tropical cyclone.

9. 1. Inspect the roof so that possible
leaks and loose galvanized iron
sheetings and other needed repairs
may be done.
2. Stock an adequate supply of food.
3. Prepare flashlights, batteries,
matches, kerosene lamps and
charcoal so that you can be
prepared for any power
interruptions that may happen.
4. Stock a sufficient supply of clean
drinking water for the family.
BEFORE A TYPHOON
1.
2.
3.
4.

10. Whenever signal no. 2 or 3 is
declared in your locality, these
general measures need to be taken.
1. Keep your radio on and try to get
the latest bulletin from the nearest
radio station. Don't listen to rumors.
Rely on official PAGASA reports.
2. Stay away from low lying beaches
or other locations open to storm
surge.If your only passage to high
ground is over a road likely to be
under water during a severe storm,
leave early. Don't run the risk of
being stranded.
DURING A TYPHOON 3. If your house is up and out of the
danger of high tide and is well-built or
anchored, then it is probably the best
place during the storm. Board up
windows. When you board up, use good
lumber that are securely fastened.
Makeshift boarding may do more damage
than good.
4. Get extra food, especially things which
can be eaten without cooking or with very
little preparation. Remember, electric
power may be cut off or cooking facilities
may not be available. If emergency
cooking facilities are necessary, be sure
they are in order. Store water, preferably
in plastic jugs or other covered
containers as water service or supply may
be cut off.

11. 5. Have a flashlight in working
condition and keep it handy.
Check on everything that may
blow away or turn loose.

12. AFTER A TYPHOON
1. Check the water sources. Drinking of tap water
they be dangerous. Always boil the water before
drinking.
2. Most of the people working in disaster
preparedness institutions conduct a search,
rescue and evacuation of victims. Medical
assistance is also given.

13. TYPHOON YOLANDA
TYPHOON ROLLY