Some areas of Oklahoma were hit by a train of storms Monday that dumped double-figure rain totals.
The Oklahoma Mesonet's Oklahoma City North station had received 13.25 inches of rainfall for the year going into the day.
However, about 4:15 a.m. Monday, rain began to fall at that station near Wilshire Boulevard and Broadway Extension on the property of The Oklahoman.
By 8:40 a.m., that station had received more rain — 7.76 inches — than it had in the previous 60 days. By 9:50 a.m., 8.94 inches had fallen, which surpassed the total for the previous 90 days, and the total continued to climb with 10.47 inches of rain by 6:05 p.m., about 14 hours later.
Just after 11 p.m., the site went over the 11-inch mark for Monday rainfall.
"Thunderstorms developed along a front across Oklahoma in an area of very moist and unstable air,” said Rick Smith, warning coordination meteorologist with the National Weather Service, Norman Forecast Office. "The storms trained, or moved repeatedly like the cars on a train, over the same area resulting in very heavy rainfall totals.”
Some areas of the state received heavy rain, but through much of the day into early evening, the rains pelted one main area, as Oklahoma County had several locations with 7 or more inches of rain. In comparison, the Mesonet station at El Reno had received 1 inch of rain by about 6:30 p.m. Monday.
"The heaviest rain was associated with bands of storms that moved over the same areas,” Smith said.
What about records? That's where it's important to differentiate between the Mesonet and the National Weather Service.
The National Weather Service has its official Oklahoma City site at Will Rogers World Airport. As of 9:55 p.m. Monday, 7.01 inches had fallen at the airport in about 17 to 18 hours. That broke the record for a June 14, which had been 3.95 inches, set in 1930. It broke the record for any day in June, which is 6.75 inches set on June 3, 1932.
The record for 24-hour rainfall for Oklahoma City is 8.95 inches, set Oct. 18-19, 1983.
The rains returned Monday night, with law enforcement reporting flash flooding on S May between SW 21 and SW 23, at NW 139 and N McArthurd Boulevard, the 3600 block of NE 122, and at N Bryant Avenue and E Memorial Road.
Thunderstorms were expected to continue early today with the risk of flooding continuing, according to the National Weather Service in Norman.