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on October 3, 2022

Extreme rainfall events

Earth Science

Asked by: Evelyn Partridge

What is extreme rainfall event?

Extreme precipitation events are defined as days with precipitation in the top 1 percent of all days with precipitation. Date Range: 1901 – 2016. Contributors: NOAA National Centers for Environmental Information.

What is extreme rainfall called?

Definitions of downpour. a heavy rain. synonyms: cloudburst, deluge, pelter, soaker, torrent, waterspout.

What was the biggest rainstorm in history?

rainfall of 1.870 m (73.62”) at Cilaos, La Reunion, on 15-16 March 1952 (cited by J.L.H. Paulhus [Indian Ocean and Taiwan Rainfalls Set New Records, Monthly Weather Review, 93 (5), 1965, pp.

How does extreme rainfall occur?

Warmer oceans increase the amount of water that evaporates into the air. When more moisture-laden air moves over land or converges into a storm system, it can produce more intense precipitation—for example, heavier rain and snow storms.

What are the extreme precipitation events and what are their effects?

Excessive precipitation can also degrade water quality, harming human health and ecosystems. Stormwater runoff, which often includes pollutants like heavy metals, pesticides, nitrogen, and phosphorus, can end up in lakes, streams, and bays, damaging aquatic ecosystems and lowering water quality for human uses.

What’s another word for heavy rain?

What is another word for heavy rain?

downpour rainstorm
torrent monsoon
torrential rain heavy shower
deluge rainfall
rain thunderstorm

What are 5 causes of floods?

Causes of Floods

  • Massive Rainfall. Drainage systems and the effective infrastructure design aid during heavy rains. …
  • Overflowing of the Rivers. …
  • Collapsed Dams. …
  • Snowmelt. …
  • Deforestation. …
  • Climate change. …
  • Emission of Greenhouse Gases. …
  • Other Factors.


Is Heavy rain a natural disaster?

Floods are the most frequent type of natural disaster and occur when an overflow of water submerges land that is usually dry. Floods are often caused by heavy rainfall, rapid snowmelt or a storm surge from a tropical cyclone or tsunami in coastal areas.

What is the most rainfall in 1 hour?

The record for most rainfall in a single hour is 12 inches (30.5 cm), set in Holt, Missouri, in 1947.

What is the most rainfall recorded in 24 hours?

71.85 inches

The current world record for 24-hour rainfall came from Tropical Storm Denise in the Indian Ocean and lashed the island of La Reunion with an almost unbelievable 71.85 inches in 1966. (Data provided by Christopher C.

What is the record for most rain in one minute?

World: Greatest Sixty-Minute (One Hour) Rainfall

Record Value 305mm (12″)
Formal WMO Review No
Length of Record 1948-present
Instrumentation Recording Rain Gauge
Geospatial Location Holt, MO, USA [39°27’N, 94°20’W, elevation: 263.11m (863ft)]

What are 6 The main causes of flooding?

What Causes Floods?

  • Heavy rainfall resulting from tropical weather disturbances.
  • Deforestation.
  • Improper agricultural practices.
  • Inadequate design of drainage channels and structures.
  • Inadequate maintenance of drainage facilities, blockage by debris brought by flood waters.
  • Construction of settlements in flood plains.


How does heavy rainfall cause flooding?

Heavy rainfall – if there is heavy rainfall there is less chance of it being soaked up by the soil (infiltration ) so it runs off into the river. The faster the water reaches the river, the more likely it will flood.

Which is the rainiest season in the world?

A rainy season (also known as a wet season) is the time of year where the majority of a country’s or region’s annual precipitation occurs.



Countries and regions with a monsoon rainy season.

Country Monsoon Season
India July – November
South and Southeast China May – September
Taiwan May – October

What causes torrential rain?

The proclamation that rains are torrential simply means the amount of rain is abundant, had a fast on-set, or lasts for a long period of time. Torrential rain can cause flash floods or urban floods in any locality while the most likely effect is water accumulations in flood prone areas.

What is light rain called?

Drizzle is light rain falling in fine drops.

What is rainfall and its type?

The types of rainfall based on intensity can be classified as: Light rain – Rate of rain varies between 0 to 2.5 millimeters. Moderate rain – Rate of rain varies between 2.6 millimeters to 7.6 millimeters. Heavy rain – Rate of rain is beyond 7.6 millimeters.

How can heavy rain be predicted?

This means rain could be on the way.



Stare at the moon.

  1. Remember the old saying, “Ring around the moon? …
  2. A double halo around the moon could signal strong winds in the coming storm.
  3. Another old saying is, “Clear moon, frost soon.” A clear sky means that there are no clouds to hold in the earth’s heat.


Who would be affected by extreme rainfall?

Heavy rainfall can lead to numerous hazards, for example: flooding, including risk to human life, damage to buildings and infrastructure, and loss of crops and livestock. landslides, which can threaten human life, disrupt transport and communications, and cause damage to buildings and infrastructure.

Where does heavy rain occur?

Wettest known locations

Continent Highest average Place
in
Asia 467.4 Mawsynram, India
Africa 405.0 Debundscha, Cameroon
Oceania 404.3 Big Bog, Maui, Hawaii (USA)

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