Threshold of meteorological parameters

State of atmosphere

>31˚C

<55%

>5 m/s

<1010 hPa

Action

18 May

Temperature

31

Yes, Dust storm occurred

Relative humidity

35

Wind speed

5.14

Pressure

1006

25 May

Temperature

44

Yes, Dust storm occurred

Relative humidity

13

Wind speed

6.17

Pressure

998

26 May

Temperature

39

Yes, Dust storm occurred

Relative humidity

20

Wind speed

8.76

Pressure

1003