For a few days it meandered generally southwestward, failing to intensify significantly.

Despite being early in the season, Mitag intensified significantly to the east of the Philippines.

Once the European powers became involved in trading, the conflict among natives intensified significantly as they struggled to control the fur trade.

Over the next two days, the hurricane intensified significantly and reached Category 2 strength early on September 2.

It failed to intensify significantly before making landfall near Cross City, Florida.

As it emerged into the Gulf of Mexico, the depression began to intensify significantly.

While crossing sea surface temperatures that were 2 to 3 F (3.6 to 5.4 C) above normal, the storm began to significantly intensify.

Early on September 26, Karen intensified significantly and an inner core began to develop.

Among experts, the debate turns on how low unemployment can drop before wage pressures intensify significantly.

Despite favorable conditions, the depression tracked westward without significantly intensifying.