0512 Executive Digest.Weather

During the past month, the La Nina phase has continued to weaken and is transitioning to a neutral El Nino Southern Oscillation phase. Sea-surface temperatures remain warmer than average across the eastern Pacific while slightly cooler than average readings persist across parts of the central equatorial Pacific.

The latest climate models continue to indicate that this transition to a neutral phase will be complete within the next few weeks. As for June, two areas of warmer than normal temperatures are forecast. These include portions of the Desert Southwest, southern Rockies, Midwest, Tennessee Valley, Ohio Valley and Deep South.

A surplus of early-season cooling degree-days of between 30 and 90 along with higher than average cooling costs are anticipated throughout these regions during June. Some climate indices suggest that slightly cooler than normal conditions are possible across parts of northern Plains with a deficit of total cooling degree-days of between 20 and 50 predicted during the month.

Elsewhere, temperatures are projected to average closer to normal across the Northeast, Mid-Atlantic, Great Lakes and much of the West Coast. 

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0512 Executive Digest.Weather

During the past month, the La Nina phase has continued to weaken and is transitioning to a neutral El Nino Southern Oscillation phase. Sea-surface temperatures remain warmer than average across the eastern Pacific while slightly cooler than average readings persist across parts of the central equatorial Pacific.

The latest climate models continue to indicate that this transition to a neutral phase will be complete within the next few weeks. As for June, two areas of warmer than normal temperatures are forecast. These include portions of the Desert Southwest, southern Rockies, Midwest, Tennessee Valley, Ohio Valley and Deep South.

A surplus of early-season cooling degree-days of between 30 and 90 along with higher than average cooling costs are anticipated throughout these regions during June. Some climate indices suggest that slightly cooler than normal conditions are possible across parts of northern Plains with a deficit of total cooling degree-days of between 20 and 50 predicted during the month.

Elsewhere, temperatures are projected to average closer to normal across the Northeast, Mid-Atlantic, Great Lakes and much of the West Coast.