Hydrometeorological Hazards

    Cards (18)

    • 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
      • Storm Surge
      • El Nino
      • La Nina
    • 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
      • Cumulus Stage
      • 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.
    • DISSIPATING STAGE - 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
      • Inland flooding
      • Flash Floods
      • River Flooding
      • Coastal Flooding
      • Urban Flooding
    • Inland flooding - is the technical name for ordinary flooding that occurs in inland areas, hundreds of miles from the coast.
    • Flash floods - 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.
    • Coastal flooding - is the inundation of land areas along the coast by seawater.
    • Urban flooding - 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.
    • La Nina - episodes represent periods of below-average sea surface temperatures across the east-central Equatorial Pacific.
    See similar decks