National Weather Service United States Department of Commerce

Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. Read More >

Click a location below for detailed forecast.

Last Map Update: Mon, May 18, 2026 at 3:00:48 pm CDT

There is a very low chance of severe thunderstorms on Monday afternoon with chances increasing on Monday night into Tuesday morning as a cold front moves through the area. Very large hail up to the size of baseballs, damaging wind gusts up to 70 mph, and tornadoes are possible.
The chances of severe thunderstorms during the day and into the early evening is very low. The best chance of severe weather is late Monday night and into Tuesday.
Strong southerly winds of 25-35 mph and gusts up to 50 mph are expected tonight through Monday evening. A Wind Advisory is in effect.
Near critical to critical fire weather conditions will be possible Monday afternoon across portions of western OK and western north TX. A Red Flag Warning is in effect from 1 PM to 9 PM.
Severe thunderstorms, capable of producing large hail and damaging winds, are possible on Tuesday.
Shower/storm chances are very low today becoming more likely on late Monday night through Tuesday.
Warm and windy conditions are expected today with fire weather conditions and severe storms possible. A cold front moves through tonight into Tuesday and seasonable temperatures return to the area. An unsettled pattern will provide for daily chances of showers and storms.

Local Weather History For May 18th...
On this date in 2017, it was a busy severe weather day across
Oklahoma and western north Texas. Along with widespread storms
producing damaging wind and hail, there were also several weak
tornadoes across western and eastern parts of Oklahoma. A significant
storm across southwest parts of Oklahoma hit a mesonet observation
site near Walters, yielding a 104 mph wind gust.

Text Product Selector (Selected product opens in current window)
Weather Observations Area Forecast Discussion Air Quality Forecasts Hydrology Information Frequently Asked Questions Social Media
Observations Discussion Air Quality Hydrology FAQ Social Media
 
Submit a Storm Report Graphical Weather Forecasts Aviation Weather Forecasts Climate Data Storm Data Weather Radio Information
Storm Reports Gridded Forecast Aviation Climate Storm Data Weather Radio  
 
Satellite Information Hourly Weather Forecast Fire Weather Information Past Weather Events StormReady Skywarn/Storm Spotters
Satellite Hourly Forecast Fire Weather Past Events StormReady Storm Spotters