Residents of Oimba-dalunga in the Ohangwena Region were the first to witness the flood waters coming into Namibia from Angola on Friday.
Some access roads leading to Engela hospital and surrounding villages from Oimbadalunga have already been flooded.
Namibia has still not recorded flood water in the Cuvelai catchment from southern Angola.
Traffic volumes have picked up on the B2 road as holidaymakers head home after vacations at the coastal towns of Swakopmund and Walvis Bay.
Two thousand vehicles passed through the Swakopmund roadblock on Monday afternoon.
Namibia and Angola, in partnership with the World Health Organization, are meeting to discuss collaboration on acute malnutrition, an expanded program on immunization, and infectious diseases.
