The UFC Freedom 250 event is set to take place Sunday at 8 p.m. on the White House South Lawn in Washington, D.C., marking President Donald Trump’s 80th birthday [1, 2]. The occasion is unprecedented, with months of planning required to set up the UFC octagon and event infrastructure on the South Lawn [2].

The timing comes amid a forecast for two rounds of thunderstorms passing through the D.C. area between 4 p.m. and 10 p.m., which could bring damaging wind gusts of 60 to 70 mph as well as large hail [1]. There is a 70% chance of rain coinciding with the event start around 8 p.m., and the high humidity is expected to make temperatures feel like 90°F [1]. Forecasters also warned a brief tornado could form east of I-95, although no official severe weather watches have been issued as of Sunday afternoon [1].

Additionally, a 100% chance of nuisance insects such as mosquitos, mayflies, moths, and biting black flies is expected during the event [1].

Despite the weather risks, UFC CEO Dana White confirmed that the event will proceed regardless of conditions. "I don’t care if it snows, rains, we’re going," White said [1]. The UFC’s commitment highlights the significance placed on the unique location and timing.

The National Weather Service issued their initial forecast on June 14 and updated the timing of the thunderstorms the same afternoon [1]. The event remains scheduled to start at 8 p.m. Sunday on the White House South Lawn [1, 2].