The Indian Meteorological Department plays the most important role in predicting and issuing colourcoded weather warnings in the cyclone prone area. The IMD has four colour-coded warnings as per the intensity of any weather system — green, yellow, orange and the last one being red.
Colour Code |||| Stage of Warning
Green (No Alert) |||| No advisors issued
Yellow (Be Updated) |||| Several bad weather across several days
Orange (Be Prepared) |||| Sign for evacuation and keeping the basic necessities ready
Red (Take Action) |||| Prepared for extraordinary measures and follow given by authorities.
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.
Hence, The Indian Metrological Department (IMD) issued a fresh yellow weather warning for heavy rain and snowfall accompanied by thunderstorm and lightning in Himachal Pradesh.