By Erwin Seba

HOUSTON (Reuters) -The latter half of September may see more tropical storms than much of this year’s hurricane season so far, said forecasters from Colorado State University on Tuesday.

Since the season began on June 1, there have been only six named tropical systems, one of which was Hurricane Erin. That is less than half of the 16 named storms researchers from the CSU’s Tropical Meteorology Project predicted in early August.

The researchers said a high pressure system over the Azores and high altitude troughs have pushed subtropical dry air into the tropical Atlantic, reducing conditions for storm formation.

Also, tropical waves from Africa, which can seed storms, have been weaker, further reducing the chances a cyclone is spawned.

But the weather patterns that have h

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