Oklahoma City Memorial Marathon

Catherine Lisle (left) and Danielle Hodge come down the finisher's chute during the 2016 Oklahoma City Memorial Marathon
Provided / Oklahoma City National Memorial and Museum

More than 24,000 runners turned out for a warm and humid race during Sunday’s Oklahoma City Memorial Marathon.

University of Oklahoma assistant volunteer running coach Patrick Gomez won the 2016 race with a time of two hours, 38 minutes. It was his first marathon.

“The crowd support was unlike anything I’ve ever experienced,” Gomez said afterward. “One runner even stopped his race to work out the cramping in my legs.”

Camille Herron of Warr Acres shortly before crossing the finish line in Sunday's Oklahoma City Memorial Marathon. It was the third time she was the top overall women's finisher.
Provided / Oklahoma City National Memorial and Museum.

Scott Downard has won the 15th annual Oklahoma City Memorial Marathon.

The day started cloudy, with calm breezes and temperatures at the 6:30 a.m. start in the upper 50s. Skies eventually cleared about three and a half hours into the race, with bright sun beating down on runners as many crossed the marathon finish line.

Downard won Sunday's race in two hours, 31 minutes and 30 seconds, finally securing a win in his fourth attempt.

Provided / Oklahoma City Memorial Marathon

A pair of runners from Norman have won the 2014 Oklahoma City Memorial Marathon. Severe storms forced organizers to delay the Marathon just before runners were set to take the course.

Sunday's race was scheduled to start at 6:30 a.m., but inclement weather that formed west of the city moved into the area around sunrise. Organizers pushed the start of the race by nearly two hours to let the storm move through. Downtown buildings opened to provide shelter to the runners.

Hayley Thornton

“Tonight I’ll run five miles through my neighborhood, a task that at one time seemed Herculean and has almost begun to feel downright routine. I’ve been intentional about weaving running into my life, it has become almost irreplaceable as a source of sanity for me.”

Nathan Gunter wrote these words in his blog just last month. Starting in late January, Gunter planned out a three-and-a-half month training program for first-time runners.

(Most recent update: 7:00 p.m. ET.)

The surviving suspect in the Boston Marathon bombings was charged Monday with using a weapon of mass destruction to kill three people and wound more than 200 in what FBI investigators said evidence shows was a coldly calculated attack.

Since 2001, the Oklahoma City National Memorial and Museum has held the marathon to commemorate the bombings in that city, which killed 168 people and injured more than 800 others. But given the events at the Boston Marathon, Oklahoma City marathon organizers are cautiously evaluating security plans and making their decisions one day at a time.

Oklahoma Christian University / Flickr

The Oklahoma Highway Patrol says there have been no threats or heightened security in the aftermath of a bombing at the Boston Marathon - but that senses are heightened.

Oklahoma City Mayor Mick Cornett says there are currently no plans to call off this year's Oklahoma City Memorial Marathon - but said events will be monitored daily.

"Obviously this time of the year on the calendar is a heightened alert in Oklahoma City. It has been for 18 years," Cornett says, referencing the 1995 bombing of the Alfred P. Murrah Federal Building.