Rain to threaten more MLB postponements in northeastern US

A storm with rain and spotty thunderstorms will spin slowly northward this week.

Off-and-on rain is in store for most locations over a two-day period. The steadiest rain is likely during the first part of the storm, when gusty winds are likely to accompany a chilly flow of air off the Atlantic Ocean.

A few locally heavy, gusty thunderstorms may occur in parts of the Chesapeake Bay region and perhaps in Delaware and southern New Jersey.

The storm will affect everything from road and airline travel and construction projects to outdoor recess at schools, after-school practice, outdoor lunch plans and baseball games.

As of Sunday, April 22, there have been 27 MLB games postponed so far this season due to rain and snow. This sets a new record for the number of MLB game postponements through April, breaking the previous record of 26 games set during the 2007 season.

See how weather has impacted the MLB season so far: 

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Inclement weather takes toll on 2018 MLB games
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Inclement weather takes toll on 2018 MLB games
BOSTON, MA - APRIL 12: The grounds crew puts the tarp on the field at the top of the sixth inning due to a rain delay during a game between the Boston Red Sox and the New York Yankees at Fenway Park on April 12, 2018 in Boston, Massachusetts. (Photo by Adam Glanzman/Getty Images)
BOSTON, MA - APRIL 12: The grounds crew tends to the infield as it rains during a game between the Boston Red Sox and the New York Yankees at Fenway Park on April 12, 2018 in Boston, Massachusetts. (Photo by Adam Glanzman/Getty Images)
Kansas City Royals starting pitcher Jason Hammel heads out to warm up in the bullpen as the grounds crew removes the tarp after a brief rain before action against the Los Angeles Angels on Friday, April 13, 2018, at Kauffman Stadium in Kansas City, Mo. (John Sleezer/Kansas City Star/TNS via Getty Images)
NEW YORK, NY - APRIL 03: Rain falls on a glass window at Citi Field before a game between the Philadelphia Phillies and New York Mets on April 3, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Rich Schultz/Getty Images)
CINCINNATI, OH - APRIL 03: General view as the tarp covers the field during a rain delay prior to the game between the Chicago Cubs and Cincinnati Reds at Great American Ball Park on April 3, 2018 in Cincinnati, Ohio. (Photo by Joe Robbins/Getty Images)
Kansas City Royals fans stay bundled up against the cold and rain during a game against the Los Angeles Angels on Saturday April 14, 2018, at Kauffman Stadium in Kansas City, Mo. (John Sleezer/Kansas City Star/TNS via Getty Images)
CINCINNATI, OH - APRIL 15: General view during a rain delay prior to the game between the St. Louis Cardinals and Cincinnati Reds at Great American Ball Park on April 15, 2018 in Cincinnati, Ohio. (Photo by Joe Robbins/Getty Images)
Apr 3, 2018; Bronx, NY, USA; Fans sit in the stands as rain falls during opening day prior to the game between the Tampa Bay Rays and the New York Yankees at Yankee Stadium. Mandatory Credit: Gregory J. Fisher-USA TODAY Sports
Apr 3, 2018; Detroit, MI, USA; Fans sit in the stands wearing ponchos as it rains during the fifth inning of the game between the Detroit Tigers and the Kansas City Royals at Comerica Park. Mandatory Credit: Rick Osentoski-USA TODAY Sports
Apr 3, 2018; Bronx, NY, USA; A general view of a tarp on the field at Yankee Stadium as rain falls during opening day prior to the game between the Tampa Bay Rays and the New York Yankees. Mandatory Credit: Gregory J. Fisher-USA TODAY Sports
Apr 9, 2018; Chicago, IL, USA; A general shot of the grounds crew at Wrigley Field in the snow prior to a game between the Chicago Cubs and the Pittsburgh Pirates. Mandatory Credit: Dennis Wierzbicki-USA TODAY Sports
Snow clings to the edge of the grass following overnight flurries before a game between the Kansas City Royals and Los Angeles Angels on Sunday, April 15, 2018, at Kauffman Stadium in Kansas City, Mo. The game was postponed because of cold weather. (John Sleezer/Kansas City Star/TNS via Getty Images)
Los Angeles Angels center fielder Mike Trout stands in the outfield as snow falls in the eighth inning against the Kansas City Royals on Saturday April 14, 2018, at Kauffman Stadium in Kansas City, Mo. The Angels won, 5-3. (John Sleezer/Kansas City Star/TNS via Getty Images)
Chicago Cubs second baseman Javier Baez plays in the snow on Monday, April 9, 2018 on Opening Day at Wrigley Field in Chicago, Ill. The team's home opener against the Pittsburgh Pirates was postponed to Tuesday because of the weather. (Brian Cassella/Chicago Tribune/TNS via Getty Images)
Chicago Cubs second baseman Javier Baez stands on the field as snow falls before the Cubs home opener against the Pittsburgh Pirates on Monday, April 9, 2018, in Chicago, Ill. The game was postponed to Tuesday because of the weather. (Armando L. Sanchez/Chicago Tribune/TNS via Getty Images)
DENVER, CO - APRIL 6: Colorado Rockies grounds crew use leaf blowers to blow off the snow around the edges of the field on Opening Day against the Atlanta Braves on April 6, 2018 Coors Field in Denver, Colorado. (Photo by John Leyba/The Denver Post via Getty Images)
DENVER, CO - APRIL 6: Colorado Rockies pitcher Chad Bettis #35 warm up as snow falls before opening day at Coors Field on April 6, 2018 in Denver, Colorado. The Colorado Rockies play the Atlanta Braves Friday afternoon for their 25th anniversary. (Photo by RJ Sangosti/The Denver Post via Getty Images)
DENVER, CO - APRIL 6: Atlanta Braves Arodys Vizcaino #38 takes a photo of the snow before opening day at Coors Field on April 6, 2018 in Denver, Colorado. The Colorado Rockies play the Atlanta Braves Friday afternoon for their 25th anniversary. (Photo by RJ Sangosti/The Denver Post via Getty Images)
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The most recent postponement was caused by the same rainstorm destined for the Northeast. A game originally scheduled at Atlanta between the Mets and Braves is now slated for May 28.

The Detroit Tigers have had the most postponements so far with six games. Four other teams have had four games postponed: The Kansas City Royals, Minnesota Twins, Chicago White Sox and New York Yankees.

The Tigers may have another game postponed at Pittsburgh on Tuesday night. Games at Cleveland, Cincinnati, Philadelphia, Baltimore and The Bronx are also at risk for delays and/or postponements. It is possible that rain will hold off until the later innings or after the game ends at Yankee Stadium on Tuesday evening.

Depending upon the speed of the storm, postponements in the Northeast are less likely on Wednesday. However, some delays due to brief showers are still possible.

Static US Midweek

Motorists should allow extra time for their commutes beginning in part of the mid-Atlantic on Tuesday and New England and New York state on Wednesday. Pedestrians will need an umbrella and a pair of waterproof shoes to get around.

Airline passengers should anticipate minor delays related to a low cloud ceiling, turbulence and locally heavy rain.

The rainstorm may come as a relief to some people since many of the storms in the past six to eight weeks have delivered snow to parts of the region.

Rainfall and moisture in the air from the storm will diminish the risk of wildfires in the region.

April to early May is notorious for brush fires since the air is often dry, temperatures climb and dead winter brush is plentiful.

Rainfall from this storm should help to spur a surge in green-up of vegetation.

Stream and river flooding are not anticipated from this storm, due to the prior three- to five-day stretch of dry weather in most locations. This includes portions of West Virginia that experienced flooding last week.

However, enough rain may fall at a fast enough pace to lead to street and poor drainage area flooding. This is mostly likely where winter debris in gutters and catch basins have not yet been removed by cleanup crews.

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