West Coast
/Pacific Northwest

"June Gloom" might get a late start this summer, but could persist well into the summer along the California beaches.

Although La Nina is weakening and transitioning to a more neutral state, Pacific Ocean waters will still be colder than normal, giving the extreme West Coast, including beach areas, a persistent chill.

"The West Coast will have near- or below-normal temperatures as the cold [ocean temperatures] hangs on through the summer, while the interior West heats up," Pastelok said.

As for the Pacific Northwest, the region will be back and forth, with some drying late in the season.

The La Nina that has driven the extreme weather since winter is over, but the lingering effects mean no summer for the Great Lakes, drought conditions expanding out of the southern Plains, and flooding expanding into the Midwest from the Mississippi Valley.

The weather pattern that produced a wild winter for the Northeast and parts of the Midwest, then extreme flooding and devastating killer tornadoes this spring, is changing to one that may not be as volatile this summer. However, given the national economic impacts of the tornadoes and floods this spring, all it would take is one hit by a major hurricane to stress the economy even more.

Senior Meteorologist Paul Pastelok, leader of the AccuWeather.com Long-Range Forecasting Team, said a change in the weather pattern means areas of the lower Mississippi Valley hit by flooding will have hot, drier weather this summer, which could help clear standing water and dry saturated ground. However, we will need to keep a careful eye on the tropics as late-season tropical storms could threaten the Gulf and/or East Coast states.

Robust Monsoon and Tropical Pacific Season Predicted
Southwestern Plains/Rockies/Interior Southwest

The southwestern Plains into the Southwest Deserts will remain hot and dry for much of the summer, which could mean an increased chance of wildfires.

"The drought in the southwestern Plains and interior Southwest will continue, spreading northward into the central Rockies," Pastelok said. "As always, with this drought comes a high fire danger."

The monsoon season that was non-existent last year may be more robust this summer, according to Western Expert Meteorologist Ken Clark, which means thunderstorms over the Southwest. Clark suspects this will be a more active tropical season in the Eastern Pacific, especially in late summer. Weakening Pacific tropical systems could send tropical moisture into the Southwest and trigger thunderstorm activity.