HYDROMETEOROLOGICAL

• Hydrometeorological Hazard - A process or phenomenon of atmospheric, hydrological or oceanographic nature that may cause loss of life, injury or other health impacts
• Cyclone, Hurricane, Typhoon - An intense circular storm that originates over warm tropical oceans and is characterized by low atmospheric pressure, high winds, and heavy rain.
• Hurricane - Eastern pacific ocean and atlantic ocean
• Typhoon - North West Pacific Ocean
• Cyclone - Indian ocean & East Pacific Ocean
• Thunderstorm - 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 Formation

  • 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 and Flash Flood - water overflows its natural or artificial banks onto normally dry land,
• Inland Flooding - technical name for ordinary flooding that occurs in inland areas, hundreds of miles from the coast.
• Flash Flood - 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
• Coastal Flooding - occurs when dry and low-lying land is submerged (flooded) by seawater
• Urban flooding - occurs when there is a lack of drainage in an urban (city) area.
• Storm Surge - system where the irregular

  sea-level rise during tropical cyclone or "bagyo" occurs.
• Storm surge in PH is "Daluyong ng Bagyo"
• El Niño - 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.
• Robinsons Anemometer -measuring wind speed and direction.
• Wind Vane - measures wind direction
• Barometer - used to measure atmospheric pressure
• Thermometer - used to measure the temperature