As per reports, the weather forecast for Wednesday (13 May) is as follows:

• The National Weather Service Weather Prediction Center issued a Short Range Forecast Discussion valid on Wednesday (13 May) and Thursday (14 May). Authorities warned of multiple severe weather hazards affecting several regions across US, including severe thunderstorms, excessive rainfall, flash flooding potential, damaging winds, hail and mixed winter precipitation in higher elevations.
• A Marginal Risk (Level one of five) for severe weather remains active across the Great Lakes region (Michigan, Wisconsin, Illinois, Indiana and Ohio), the Central Great Plains (Kansas and Missouri), and parts of Florida.
• Forecasts indicated that a frontal system moving through the Great Lakes is generating rainfall and thunderstorms supported by sufficient atmospheric moisture and dew points. The system may produce isolated severe thunderstorms capable of generating hail and damaging wind gusts.
• In the Central Great Plains region (Kansas and Missouri), a cold front may support isolated severe thunderstorm development, particularly across southeastern Kansas and southwestern Missouri. Authorities warned that localized severe weather conditions may develop during the frontal passage period.
• Across Florida, especially the Atlantic Coast region (including Miami-Dade, Broward, Palm Beach, Brevard and surrounding coastal counties), a slow-moving cold front combined with abundant moisture may generate thunderstorms. Meteorological agencies warned that these storms may produce damaging wind gusts, hail and localized flash flooding, particularly in urban and low-lying areas.
• Weather Prediction Center issued a Marginal Risk (Level one of four) for excessive rainfall because storms are expected to move slowly and may result in water accumulation in drainage-sensitive locations.
• On Wednesday (13 May), Northern Rockies and Northern Great Plains regions, a separate frontal system is forecast to move through the Northern Rockies and into the Northern Great Plains (Montana, Wyoming, North Dakota and South Dakota). The Storm Prediction Center issued a Slight Risk (Level two of five) for severe weather over central Montana because thunderstorms may produce severe wind gusts and localized severe storm activity.
• The associated cold front is also forecast to extend into the Ohio Valley and Mid-Atlantic regions (Ohio, Pennsylvania, West Virginia, Virginia, Maryland, Delaware and New Jersey) on Wednesday (13 May), where another Marginal Risk for severe thunderstorms remains in place. Isolated wind damage and localized severe wind gusts may occur with stronger thunderstorms during frontal passage.
• Meanwhile, a separate weather system moving into the Pacific Northwest and Northern Intermountain region (Washington, Oregon, Idaho and western Montana) is expected to produce mixed winter precipitation across higher elevations of the Cascades and northern Rocky Mountains from Wednesday (13 May) into Thursday (14 May).
• The forecast also noted that above-normal temperatures currently affecting the western US are expected to shift eastward toward the Great Plains by Thursday (14 May), contributing to warmer-than-average daytime conditions in portions of the central US.