New IMD norms

Q.  Which of the following statements is/are correct about new IMD norms?

1. Forecasts of heat and cold waves over a sub-division will be issued only if at least two stations in the sub-division are expected to experience such conditions
2. Heat wave is declared when temperatures are greater than 4.50C above usual temperatures for the region.
- Published on 14 Jan 16

a. Only 1
b. Only 2
c. Both
d. None

ANSWER: Both
 
Forecasts of heat and cold waves over a sub-division will be issued only if at least two stations in the sub-division are expected to experience such conditions
Heat wave: Temperatures are greater than 4.50C above usual temperatures for the region.
Severe heat wave: Temperatures are greater than or equal to 470C.
Cold wave: Temperatures are less than 4.50C above usual temperatures for the region.
Severe cold wave: Temperatures are less than 20C

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