हिंदी साहित्य: पेन ड्राइव कोर्स
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Important Facts For Prelims

Colour-Coded Warnings by the IMD

  • 28 Jan 2020
  • 2 min read

Why in News

Recently, the Indian Meteorological Department (IMD) has issued a yellow weather warning for heavy rain and snowfall in Himachal Pradesh.

  • Yellow weather warning indicates severely bad weather spanning across several days.

Key Points

  • Colour- Coded Weather Warning
    • It is issued by the IMD whose objective is to alert people ahead of severe or hazardous weather which has the potential to cause damage, widespread disruption or danger to life.
    • Warnings are updated daily.
    • The IMD uses 4 colour codes are:
      • Green (All is well): No advisory is issued.
      • Yellow (Be Aware): Yellow indicates severely bad weather spanning across several days. It also suggests that the weather could change for the worse, causing disruption in day-to-day activities.
      • Orange/Amber (Be prepared): The orange alert is issued as a warning of extremely bad weather with the potential of disruption in commute with road and rail closures, and interruption of power supply.
      • Red (Take Action): When the extremely bad weather conditions are certainly going to disrupt travel and power and have significant risk to life, the red alert is issued.
  • These alerts are universal in nature and are also issued during floods, depending on the amount of water rising above land/in a river as a result of torrential rainfall.
    • For instance, when the water in a river is ‘above normal’ level, or between the ‘warning’ and ‘danger’ levels, a yellow alert is issued.

India Meteorological Department

  • IMD was established in 1875.
  • It is an agency of the Ministry of Earth Sciences of the Government of India.
  • It is the principal agency responsible for meteorological observations, weather forecasting and seismology

Source: TH

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