Cold air hits Northern region
North suffers severe cold wave, South enjoys mild climate before Tet
Northern region needs to proactively deal with extreme cold front
New cold spell brings rain to northern region
Tropical depression intensifies into storm toward north
Northern region sets new record high in power consumption
Country forecast to face unusual natural disasters from recent rains, floods
Prolonged downpours cause havoc in Northern region
First seasonable rains in Northern region leave three dead, missing
Northern region to face bitterly cold wave next week
