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The ARA San Juan submarine which last made contact with the Argentine Navy on 15 November is still missing.
The Argentina government reported on Thursday that a sound detected in the missing submarine search is consistent with an explosion.
A potent storm system caused hazardous conditions across the search area on Thursday.
Search and rescue teams endured occasional rain along with strong winds and rough seas, which created poor visibility.
Improved weather that began on Friday will last into Sunday as high pressure builds north of the search area.
This area of high pressure will shield the region from any storm systems and result in dry weather.
Seas will be 1-3 meters (3-10 feet) across the search area, while wind gusts peak at 30-50 km/h (20-30 mph).
Late in the day on Sunday, wind and seas will begin to increase once again in the wake of a cold front. This will be short-lived, however, as conditions improve on Monday.
The ARA San Juan has 44 crew onboard, according to the Associated Press.
Admiral Gabriel Gonzalez stated Monday that the submarine reported an unspecified breakdown early Wednesday 15 November, before contact was lost.
Argentine Navy spokesman Enrique Balbi said that the relatives of the crew have been informed of the possible explosion and that the search will continue until there is full certainty about the fate of the ARA San Juan.
Fears have escalated as the submarine would only have seven to 10 days of oxygen without surfacing.
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