An extended period of dry weather produced by a large area of high pressure centered over northern France forced Paris to enforce restrictions on travel due to increasing amounts of air pollution. However, conditions will continue to improve into the weekend.
Harmful smog hung over the region for the last several days but conditions improved by Thursday.
In a drastic attempt to reduce air pollution, it was announced on Monday that cars with even-numbered license plates were not allowed to be driven in Paris and some surrounding suburbs, according to the Associated Press.
In an effort to enforce the ban, around 700 police officers set up check points across the city, ticketing nearly 4,000 people by midday.
This marked the first time since 1997 that measures to this extreme had to be taken in Paris.
The large area of high pressure that has built over the region for much of March has resulted in no measurable rainfall since March 3 and many days with light winds.
This combination allowed pollutants from automobiles, businesses and agriculture to built up in the atmosphere causing the poor air quality.
Two joggers wearing protective masks run past a Police officer controlling a vehicle on the Concorde square in Paris, Monday, March 17, 2014. (AP Photo/Remy de la Mauviniere)
A weak storm system passing north of France on Tuesday helped to stir up the atmosphere somewhat allowing restrictions to be lowered; however, high pressure that built back overhead on Wednesday raised the concern for higher-than-normal levels once again.
A powerful cold front blasted across the United Kingdom on Thursday, and ahead of this front, winds increased across France once again helping alleviate air quality issues.
This front will then push through northern France on Friday bringing both gusty winds and rain that will help to rid the region of the recent increase in air pollution.
Thereafter, cooler conditions along with clouds and bouts of showers are expected to persist into the first part of next week. This change in weather pattern should allow pollution levels to remain low.
Severe weather, including the risk of tornadoes and flash flooding, will continue into Memorial Day weekend.
An area of showers and thunderstorms near the Bahamas has the potential to develop into a tropical storm and impact part of the East Coast of the United States during Memorial Day weekend.
Severe thunderstorms will continue to sweep across the central U.S. into Thursday night.
This weekend will be the biggest racing weekend of the year with three major races drawing in millions of viewers from around the globe.
This summer, the pattern responsible for extensive drought and heat in southeastern Asia will break down enough to bring relief to some nations, while the tropics spring to life for a time.
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