The weather this week will bring trouble in the East for those with outdoor plans and projects, as well as occasional travel delays.
There is the potential for some communities to be hit especially hard with heavy rain and flash flooding.
Storms from around Lake Erie to much of the mid-Atlantic and the Carolina coast will be locally severe Wednesday evening with the risk of damaging winds, hail and frequent lightning, along with the flash flood threat.
Showers and thunderstorms will be nearly daily visitors in the Appalachians, and along the Gulf Coast and Atlantic Seaboard. This includes cities from Miami to Atlanta, Washington, D.C., New York City and Boston.
While it will rain less than a quarter of the time any given day, some locations can be hit by multiple downpours on multiple days.
The bulk of the rainfall will occur but will not limited to the afternoon and evening hours, when the greatest chance for a locally strong thunderstorm is also likely.
Fans heading to ball games in New York, Philadelphia, Baltimore and Pittsburgh this week should have the raingear handy in case a downpour develops over the stadium at game time.
In the coastal areas of the Northeast, a partial flow of moist air from the Atlantic will work to keep daytime temperatures on the cool side of normal for June.
High humidity will make it hard for those who exercise or work outdoors to keep cool and dry. Evaporation rates will be low and RealFeel® temperatures will be elevated because of the high humidity.
Because of the high humidity and cloud cover, most nights may be warmer than average, if not a bit muggy.
This flow of moisture can also lead to early morning flight delays due to areas of low clouds and fog. Fog during June tends to lift and burn off faster, when compared to the late summer and autumn. The sun is much stronger this time of the year.
That sunshine, however may be limited to a few hours or less on a daily basis for those trying to catch some rays at the beach.
There is some good news for people in the Northeast who have plans this coming weekend. Early indications are that a push of dry air will advance across the region allowing some sunshine and a drop in humidity for Saturday and Sunday.
Since this forecast push of dry air will be weak and aimed more eastward, it is unlikely there will be any significant change in humidity levels for much of the South. This may also translate to an ongoing risk of daily showers and thunderstorms, including activities at the U.S. Open at Pinehurst, North Carolina.
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A cold front will spread needed rainfall across drought-stricken parts of eastern Australia during the middle of the week.
The cold front that is expected to whisk Hurricane Maria back out to sea after it nears North Carolina will trim the summerlike warmth out of the midwestern and northeastern United States this week.
Emergency officials in Puerto Rico evacuated tens of thousands of people on Friday afternoon due to an imminent dam failure in the nearby areas of Isabela and Quebradillas, following Hurricane Maria's devastating blow.
Tropical Storm Pilar is expected to churn up rough seas and raise the risk for flooding downpours across southwestern Mexico this week.
Thousands of people have been evacuated from their homes on the Indonesian island of Bali due to fears of Mount Agung potentially erupting.
Hurricane Maria will likely come close enough to North Carolina to trigger gusty winds and rain, while unleashing dangerous seas elsewhere along the East Coast this week.
Recent earthquakes near North Korea’s nuclear test site have raised questions as to how far radioactive material would travel if an underground atomic explosion triggers a leak.
While no new threats are lurking behind Maria and Lee this week, residents of the Caribbean and United States should not let their guard down as tropical season is far from over.