Severe weather is possible across the area Monday and heavy rain is expected to affect the area Tuesday

This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Today and Tonight... .Thunderstorms... There is a Slight Risk of severe thunderstorms this afternoon into this evening across central and southwest Oklahoma, and western north Texas, generally south of Quanah, Texas to Watonga to Perry to Ada to Marietta. A Marginal Risk surrounds the Slight Risk area, and covers most of the remainder of Oklahoma, except the far northwest. Large hail and damaging winds will be likely with the strongest storms, which are expected to develop shortly after noon, and move quickly northeast. Storm development will continue through the evening and into the night, with a gradual decrease in intensity as the evening and night progress. Tornadoes will also be possible, mainly within the Slight Risk area this afternoon and early evening. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... Storm spotter groups and emergency management personnel across the Slight Risk area should prepare for severe weather operations this afternoon and evening. .Heavy rainfall... Heavy rain may cause localized flooding in the general vicinity of I-44 this evening and overnight. .Fog... Dense fog will be possible this morning in northern Oklahoma. A Dense Fog Advisory is in effect for this area until 10 am. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... .Heavy rainfall... Heavy rain will continue into early Tuesday, while shifting farther southeast, mainly affecting south-central and southeast Oklahoma Tuesday morning. .Thunderstorms... There is a Marginal Risk for severe thunderstorms Tuesday in southeast Oklahoma, east of a line from Lake Texoma to Atoka. Otherwise, there will continue to be a chance of thunderstorms Wednesday, and again on Sunday. Storms on those two days are unlikely to be severe. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.