The Weather Network – Bonnie set to become a Pacific hurricane as Colin dissipates


Tropical Storm Bonnie, which started its journey in the southern Atlantic Ocean, is now expected to develop into a hurricane in the eastern Pacific by Monday. Heavy rain is possible in parts of El Salvador, Guatemala and southern Mexico over the next two days, increasing the threat of flash flooding and mudslides. Meanwhile, Colin’s short stint as a tropical storm has come to an end, with the remnants bringing persistent gusty winds and showers to the North Carolina coast on Sunday. For the latest on Bonnie and Colin, read below.

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Tropical Storm Bonnie formed Friday in the southern Caribbean Sea as the second named storm of the season in the Atlantic. Since then, Bonnie has emerged above the Pacific Ocean with her unusual trek across the Atlantic.

On Sunday morning, Bonnie was 255 km south of Puerto San José, Guatemala, according to the United States. National Hurricane Center (NHC).

Conditions are favorable for Bonnie to become a hurricane by Monday, according to the NHC, as intensification is expected over the next two days. Maximum sustained winds are close to 95 km/h with stronger gusts.

The agency expects the storm to bring heavy rain and strong gusty winds on its way.

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While there are no watches or warnings in place currently, interests along the coasts of Guatemala and southern Mexico should monitor the progress of this system.

Areas of heavy rainfall are possible over the next two days in parts of El Salvador, Guatemala and southern Mexico. Rainfall could cause flash flooding and landslides in the area.

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It was unusual for a tropical storm to form so far south of the Caribbean Sea. Most storms track further north, closer to the West Indies. This storm, and the disturbance from which it formed, hugged South America as it moved through the Caribbean.

But what’s even more unusual is that Tropical Storm Bonnie survived its encounter with Nicaragua and emerged intact over the eastern Pacific Ocean. The mountains of Central America usually tear up a storm, but Bonnie moved fast enough that her center of circulation survived the short trip over land.

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In addition, the swell generated by Bonnie will affect parts of the coasts of El Salvador, Guatemala and southern Mexico over the next few days. These swells are likely to cause life-threatening surf and rip conditions.


Meanwhile, in the Atlantic Basin, Colin came to life early Saturday morning off the southeast coast of the United States near South Carolina. It became the Atlantic’s third named storm of 2022. However, the storm has since weakened and lost its tropical storm status.

As of Sunday morning, Colin’s remains were 15 miles north-northeast of New Bern, North Carolina, according to the NHC.

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The remnants are expected to spin east-northeast and accelerate soon, emerging over Atlantic waters east of North Carolina on Sunday afternoon.

Maximum sustained winds are near 45 km/h with higher gusts, occurring primarily over Atlantic waters off the North Carolina coast.

Gusty winds are still possible on North Carolina’s Outer Banks Sunday morning, while scattered showers and thunderstorms can impact coastal regions of the state through the morning. Most areas will see less than 25mm of additional precipitation.


Thumbnail courtesy of NOAA.

Stay tuned to The Weather Network for the latest updates on the tropics.


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