Storm Signals

Today I learned that............

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.)

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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.

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.

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.

• Today I learned that  storm signals are usually raised when an area (in the Philippines only) is about to be hit by a tropical cyclone. As a tropical cyclone gains strength and/or gets nearer to an area having a storm signal, the warning may be upgraded to a higher one in that particular area (e.g. a signal #1 warning for an area may be increased to signal #3). Conversely, as a tropical cyclone weakens and/or gets farther to an area, it may be downgraded to a lower signal or may be lifted (that is, an area will have no storm signal). 
• I will apply my learnings about this phenomenon in case when a strong typhoons occurs, me and my family are ready about this.
• Learning about this phenomenon is important because knowing it is very helpful and to be aware.
• On a larger scale, i will share my learnings to others because i want them to have an information about this to help them.
• I need to know  more about what factor/s affect/s the raising of the levels of the storm signals.