Nearly 4,000 shelters were prepared across the two states.
More than 30,000 people have already been moved to shelters.
Medical teams and over a thousand ambulances are ready.
Train services were reduced by canceling about 50 trains.
The storm may bring wind speeds up to 150 kilometers per hour.
The weather service warned that winds could be very strong.
Governments opened many shelters and moved families, especially pregnant women, to safety.
Trains and flights were cancelled, and rescue teams are on standby.
The goal is to keep everyone safe and avoid damage.
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