Insights and Reflections: Storm Warning Signals



     Today, I learned that Public Storm Warning Signals are storm signals that are usually raised when an area is about to be heat by tropical cyclone. The Public Storm Warning Signal Number over a threatened/ affected locality may be sequentially upgraded or downgraded. This means that PSWS #1 may be upgraded to PSWS #2, then to PSWS #3 and to PSWS #4 as necessary when a very intense typhoon is approaching or downgraded when the typhoon is moving away. However, in case of rapid improvement of the weather condition due to the considerable weakening or acceleration of speed of movement of the tropical cyclone moving away from the country, the downgrading of signal may jump one signal level. For example, PSWS #3 may be downgraded to PSWS #1 or all signals from PSWS #2 may be lowered.
      I will apply my learning about storm signals in my everyday life so that I am ready for the occurrences of typhoon, and so that I am ready for the possibility of raising the storm signal in our area.
          Learning about storm signals is important because it helps us to become aware of the strength of the incoming typhoon. It is also important because the purpose of storm signal is to warn the impending occurrence of some meteorological conditions (like typhoon).
        On a larger scale, I will share my learning about this phenomenon to others because; I want them to be also aware of the intensity and strength of the incoming storms. I also want them to be knowledgeable of how storm signals can help us in being ready for some typhoons.
       I need to know more about storm signals so that I can be more aware of the incoming occurrences that will may affect our living. I need to know more about the larger scope of storm signals because my learning about this not enough for me to be completely ready and aware.


PUBLIC STORM WARNING SIGNALS

 PSWS #1
METEOROLOGICAL CONDITIONS:
  • A tropical cyclone will affect the locality.
  • Winds of 30-60 kph may be expected in at least 36 hours or intermittent rains may be expected within 36 hours. (When the tropical cyclone develops very close to the locality a shorter lead time of the occurrence of the winds will be specified in the warning bulletin.)
IMPACT OF THE WINDS:
  • Twigs and branches of small trees may be broken.
  • Some banana plants may be tilted or downed.
  • Some houses of very light materials (nipa and cogon) may be partially unroofed.
  • Unless this warning signal is upgraded during the entire existence of the tropical cyclone, only very light or no damage at all may be sustained by the exposed communities.
  • Rice crop, however, may suffer significant damage when it is in its flowering stage.

PSWS #2
METEOROLOGICAL CONDITIONS:
  • A tropical cyclone will affect the the locality.
  • Winds of greater than 60 kph and up to 100 kph may be expected in at least 24 hours.
IMPACT OF THE WINDS:
  • Some coconut trees may be tilted with few others broken.
  • Few big trees may be uprooted.
  • Many banana plants may be downed.
  • Rice and corn may be adversely affected.
  • Large number of nipa and cogon houses may be partially or totally unroofed.
  • Some old galvanized iron roofings may be peeled off.
  • In general, the winds may bring light to moderate damage to the exposed communities.
PSWS #3
METEOROLOGICAL CONDITIONS:
  • A tropical cyclone will affect the locality.
  • Winds of greater than 100 kph up to 185 kph may be expected in at least 18 hours.
IMPACT OF THE WINDS:
  • Many coconut trees may be broken or destroyed.
  • Almost all banana plants may be downed and a large number of trees may be uprooted.
  • Rice and corn crops may suffer heavy losses.
  • Majority of all nipa and cogon houses may be unroofed or destroyed and there may be considerable damage to structures of light to medium construction.
  • There may be widespread disruption of electrical power and communication services.
  • In general, moderate to heavy damage may be experienced, particularly in the agricultural and industrial sectors.
PSWS #4
METEOROLOGICAL CONDITIONS:
  • A very intense typhoon will affect the locality.
  • Very strong winds of more than 185 kph may be expected in at least 12 hours.
IMPACT OF THE WINDS:
  • Coconut plantation may suffer extensive damage.
  • Many large trees may be uprooted.
  • Rice and corn plantation may suffer severe losses.
  • Most residential and institutional buildings of mixed construction may be severely damaged.
  • Electrical power distribution and communication services may be severely disrupted.
  • In the overall, damage to affected communities can be very heavy.


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