National Disaster Management Plan of 2016 stated that HYDROMETEOROLOGICAL is a process or phenomenon of atmospheric, hydrological or oceanographic nature that may cause loss of life, injury or other health impacts, property damage, loss of
livelihoods and services, social and economic disruption, or environmental damage.
Hydrometeorological hazards
Typhoon
Thunderstorm
Flood
Flashflood
StormSurge
ElNino
LaNina
WEATHER FORECAST is a scientific estimate of future weather
condition, wherein a weather condition is a state of the atmosphere at a given time expressed in terms of the most significant variables.
THUNDERSTORM - This is a powerful, short-lived weather disturbance, almost always associated with lightning, thunder, dense clouds, heavy rain or hail, and fast, roaring winds.
3 Stages of Thunderstorm
CumulusStage
Mature Stage
Dissipating Stage
Cumulus Stage - where the sun heats the Earth's surface during the day and warms the air around it.
MATURE STAGE - A cumulus cloud becomes very large, where the water therein becomes large and heavy, and raindrops begin to fall through
the cloud when the rising air can no longer hold them up.
DISSIPATINGSTAGE - After 30 minutes, thunderstorm begins
to dissipate, this occurs when the downdrafts in the cloud begins to
dominate over the updraft. Since warm moist air can no longer rise, cloud droplets can no longer form.
Flood is a high-water stage in which water overflows its natural or artificial banks onto normally dry land, such as a river inundating its floodplain. The effects of floods on human well-being range from unqualified blessings to catastrophes.
Main Types of Floods
Inlandflooding
Flash Floods
RiverFlooding
Coastal Flooding
UrbanFlooding
Inlandflooding - is the technical name for ordinary flooding that occurs in inland areas, hundreds of miles from the coast.
Flashfloods - are caused by heavy rain or the sudden release of water over a short period of time.
River flooding - occurs when water levels in rivers, lakes, and streams rise and overflow onto the surrounding banks, shores, and neighboring land.
Coastalflooding - is the inundation of land areas along the coast by seawater.
Urbanflooding - occurs when there is a lack of drainage in an urban (city) area.
Storm surge - or "Daluyong ng Bagyo" in the Philippine system where the irregular sea-level rise during tropical cyclone or "bagyo" occurs.
El Nino - refers to the large-scale ocean-atmosphere climate interaction linked to a periodic warming in sea surface temperatures across the central and east-central Equatorial Pacific.
LaNina - episodes represent periods of below-average sea surface temperatures across the east-central Equatorial Pacific.