Summary
The weather service gave red, orange, and yellow warnings so people know how serious it is.
Officials tell everyone to stay inside, avoid trees, and listen to official updates.
Cyclone Arnab is expected to bring very heavy rain and strong winds in Bihar.
Sitamarhi and Madhubani are under red alert, the most serious level.
Orange alerts cover Darbhanga, Sheohar, East Champaran and West Champaran.
Yellow alerts are for districts like Patna, warning of rain and lightning.
The storm will last until the end of October, after which temperatures will drop.
The weather service gave red, orange, and yellow warnings so people know how serious it is.
Officials tell everyone to stay inside, avoid trees, and listen to official updates.
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