She then forced a decider before rain delayed play for another 20 minutes at 2-1 on serve in the final set.
World No 14 Mladenovic briefly threatened a comeback in the second set, racing into a 3-1 lead, but Bacsinszky held her nerve in the stop-start encounter to win four straight games before serving out for a spot in the semis. "Because to play semi-final of Roland Garros on your birthday, I think it's really nice", added Ostapenko.
And when the match did eventually get underway the windy conditions disrupted Mladenovic's flow in-front of a vocal home crowd.
With Bacsinszky serving at 3-5 Ostapenko, coiled like a spring, brought up two match points with an unstoppable backhand return that cleaned the baseline then smote a rasping forehand return victor that left her opponent flat-footed.
Both women's quarterfinals were interrupted twice because of showers; the first delay lasted more than 3 hours, the second about a half-hour. "I was always playing aggressive and trying to hit the ball when I have the chance". "But maybe lucky me, experience-wise".
The men's quarter-finals featuring nine-time champion Rafael Nadal and holder Novak Djokovic were postponed until Wednesday after two rain delays disrupted Tuesday's play.
There were, though, tears of disappointment over on Court Philippe Chatrier, where Kristina Mladenovic's hopes of becoming a first French champion since Mary Pierce in 2000 evaporated as she was beaten 6-4 6-4 by Timea Bacsinszky, the number 30 seed from Switzerland.
Having clawed her way back to 4-5, the errors returned and Wozniacki took the opening set.
The unseeded teenager turns 20 on Thursday and gave herself a huge early present by coming from behind to defeat the former would number one 4-6 6-2 6-2 on Court Suzanne Lenglen.
$3.8 billion Dakota Access oil pipeline begins service
Former President Obama delayed the project in December by refusing to grant the Army Corps of Engineers an easement for the lake. We look back on the the fight against the pipeline during the coldest months of North Dakota winter.
Mickelson to miss US Open for daughter's graduation
Open to attend his daughter Amanda's high-school graduation, according to Karen Crouse of The New York Times . Open week and turns 47 this June, has had family issues come up during the season's second major in the past.
Latvian teenager Jelena Ostapenko credited her passion for ballroom dancing for fuelling her breakthrough performance at the French Open.
There was also a good bit of rain getting in the way of play on Tuesday. I'm really happy to be in the final, especially on my birthday.
Bacsinszky, meanwhile, knows what it's like to be on the semi-final stage, going three sets before losing to Serena Williams in Paris in 2015.
Bacsinszky fended off one with a swinging serve but Riga's finest made no mistake on the second, sending a forehand whistling into the corner to become the first Latvian player to reach a grand slam final.
Djokovic has been struggling for consistency and the 23-year-old Thiem is expected to provide a tough challenge even if the Austrian has won only one set in their five previous encounters.
Perhaps the rain allowed Ostapenko to overcome a loss in the first set to win the last two to advance to the semifinals.
The No. 30 seed will next face either No. 11 Caroline Wozniacki of Denmark or unseeded 19-year-old Jelena Ostapenko of Latvia, who also celebrates her birthday on Thursday. Djokovic is the defending champion.
Eighty kilometre per hour winds gusted throughout the grounds as both players, skidding through clouds of clay, picked grit out of their eyes.
Those two matches join today's scheduled quarterfinals - top-seeded Andy Murray vs. eighth-seeded Kei Nishikori and third-seeded Stan Wawrinka against seventh-seeded Marin Cilic.
While few expect that to happen, the words underline that the bank is not yet willing to call time on the stimulus program. The 60 billion euros ($67 billion) per month in bond purchases are to run at least through the end of the year.
On Wednesday, journalist and relative Isabel Duran tweeted : "Ignacio Echeverria attacked the terrorists to try to save a woman". Off-duty police officers and a business editor were also among the 48 people who were injured in the attack .
But if Trump were to lie under oath, and Mueller and his team were able to prove that subsequently, it would constitute perjury. That could serve to rebut Comey's testimony. 'But yes, absolutely I'd be committed to Article 5, ' he said.
After three consecutive years of ties, the bee is likely to identify a sole champion this year because it added a tiebreaker test. Mira spelled the following words correctly to remain in contention: Icarian, ornithology and ferriferous.
Trump on Wednesday declared that abandoning the Paris climate agreement would be a victory for the American economy. U.S. media reported Wednesday that Trump had made a decision to pull the United States out of the Paris accord.
Senior Veronica Eder picked up her first All-American honors as she finished 14th in the women's 10,000 meters. New Mexico's Josh Kerr won the 1,500 with a time of 3:43.03, eight seconds off the record pace set in 1981.
Stephen Curry (30) puts in a layup in the first half as the Golden. "It's kind of comedy to me", Curry said Friday. It doesn't make sense to me because you're kind of talking two different games, for real.
Born to an Indian immigrant father and an Irish mother, Varadkar is now serving as Ireland's Minister for Social Protection. Varadkar is likely to succeed Enda Kenny, who has stepped down in May, following him involvement in a corruption scandal.
In his first remarks on the assault, Philippine President Rodrigo Duterte said Saturday that the attacker was simply "crazy". Albayalde said police have spoken with Carlos' widow, who is anxious about the effect of the incident on their children.
Church bus crash leaves 1 dead, others injured
A church bus carrying high school students and adults has crashed in the Atlanta area, leaving several people injured. Vandiver said he spoke with both shortly after the accident but neither could provide any real details.
Man investigated in death of child points to his wife
Louis Post-Dispatch and several others report that the child was six, while other outlets say the child was seven years old. Alyssa was the youngest of three girls, each born 16 months apart, according to her maternal grandmother Christine O'Dell .
Does Trump's Budget Cut Medicaid Funding? No One Seems To Know
The Administration's annual budget is seen as a statement of policy, not necessarily a legislative proposal certain to become law. Speaking with reporters, he called Trump's budget a "recommendation" that "will not be determinative of what happens here".
Trump wishes Comey luck, allies aim at lawman's credibility
But Coats indicated that he would cooperate with the Russian Federation probe now being led by special counsel Robert Mueller . Acting FBI Director Andrew McCabe has also testified that there has been "no effort to impede" the Russian investigation.
Report suggests Russia hackers breached voting software firm
According to Justice's press release, victor admitted to knowingly printing classified information and sending it to the media. A sworn affidavit from FBI Special Agent Justin Garrick only said that the document contained "defense information".
Apple unveils 'HomePod' speaker, first new product in years
This speaker is "wrapped in a seamless mesh fabric" that's made to look good and perform well with speakers blasting through it. As Schiller introduced the device, he acknowledged that there are several other smart home speakers available on the market.
Steve Kerr will coach Game 2 of NBA Finals
Golden State had 31 assists on 45 made field goals, and the players were able to get to any spot on the court that they pleased. According to Head Coach Tyronn Lue, the Cavs will also need to push the pace and score in transition, per USA Today .