NWS Norman OKFW.W 0030May 18, 2026
Red Flag Warning: Harper, Ellis, Roger Mills and 5 more, OK and TX
The National Weather Service office in Norman issued a red flag warning for Harper, Ellis, Roger Mills and 5 more in Oklahoma, Texas, which was in force until 9:00 p.m. local time on May 18. It was the 30th red flag warning the NWS office in Norman issued in 2026. Oklahoma had 11 red flag warnings in May 2026, against 4 in an average May of 2008-2025 (Oklahoma's red flag warnings by year).
ExpiredWarning
In force for 8 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Norman OK
- Area
- Harper, Ellis, Roger Mills and 5 more
- State
- Oklahoma
- Level
- Warning
- Issued
- 1:24 a.m. CDT, May 18, 2026
- In force from
- 1:00 p.m. CDT, May 18, 2026
- Expires
- 9:00 p.m. CDT, May 18, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KOUN FW.W 0030
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
The National Weather Service in Norman has issued a Red Flag Warning, which is in effect from 1 PM this afternoon to 9 PM CDT this evening. The Fire Weather Watch is no longer in effect. * WINDS...South 20 to 30 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 12 percent. * TEMPERATURES...Up to 100. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...90th+ percentile...5 (out of 5). WEATHER...Critical...3 (out of 5). FIRE ENVIRONMENT...8 (out of 10).
What the agency told people to do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.