What is the difference between Level 1 and Level 2 heatwave alerts?

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Level 1 and Level 2 heatwave alerts are distinguished by temperature thresholds and duration.

MetMalaysia issues a Level 1 alert when temperatures range between 35 degrees Celsius and 37 degrees Celsius for three consecutive days. In contrast, a Level 2 warning, also known as an orange alert, is triggered when temperatures consistently reach between 37 degrees Celsius and 40 degrees Celsius over a three-day period. A red alert signifies an extreme heatwave, occurring when temperatures exceed 40 degrees Celsius for three consecutive days.
Level 1 Alert Criteria

A Level 1 alert is activated if the daily maximum temperature consistently falls within the 35 to 37 degrees Celsius range for three consecutive days. This warning indicates a notable increase in heat but has not yet reached the higher thresholds that necessitate more severe classifications.
Level 2 Alert Criteria

The Level 2 warning, or orange alert, is issued when the heat intensifies, with daily maximum temperatures consistently between 37 and 40 degrees Celsius. This sustained period of elevated temperatures signifies a more critical heat event than that requiring a Level 1 alert.
Distinction in Severity

The fundamental difference between Level 1 and Level 2 heatwave alerts lies in the measured temperature and its duration. Level 1 represents a moderate heatwave condition, while Level 2 signifies a more severe and prolonged period of high temperatures, indicating a greater risk.

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What is the difference between Level 1 and Level 2 heatwave alerts?

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