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Rainstorm Ashobaa Slams Oman With Historic Flooding

By By Eric Leister, Meteorologist
June 14, 2015, 1:37:28 AM EDT

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Tropical Cyclone Ashobaa has weakened to a tropical rainstorm and will track westward through Saturday as rain and flooding continue across Oman.

The warm waters of the Arabian Sea allowed Ashobaa to strengthen through Wednesday, though weakening has since occurred and will continue as Ashobaa due to dry air aloft and interaction with land.


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Due to this weakening, Ashobaa will not pose any significant wind threat to Oman outside of gusts within thunderstorms.

Torrential rains have already caused flooding in eastern Oman. One of the hardest-hit areas has been Masirah Island where more than 225 mm (9 inches) of rain fell in only 24 hours. Normal yearly rainfall is around 40 mm (1.6 inches), so more than five years' worth of normal rain fell in only 24 hours.

A year's worth of rain has also fallen in areas from Sur to Filim with showers spreading farther inland across the nation. Rain and thunderstorms will continue to enhance the risk for flooding, especially in coastal communities through Saturday.


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Despite weakening, the remnant low pressure can still result in life-threatening flooding as downpours can quickly turn dry roadways into fast flowing rivers.

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Farther from the core of Ashobaa, an increase in moisture helped fuel thunderstorms that produced hail in parts of northwestern Oman on Thursday and Friday; however, these storms were isolated and most areas remained dry in this region.

In fact, no measurable rainfall has been reported at Muscat International Airport, though a few showers have occurred in the surrounding area since Thursday.

The seas will be rough for boaters and swimmers across the entire northern part of the Arabian Sea, reaching Pakistan and western India into this weekend before improving.

Meteorologist Rich Jaworski contributed content to this story.

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