This weather forecast outlines several significant weather events across different regions of the United States:
- Southern Plains to Lower Mississippi Valley: Heavy rain, flash flooding, and severe weather are expected to expand across the Southern Plains into the lower Mississippi Valley through Wednesday. This will then reach into the Midwest, Ohio/Tennessee Valleys, and the Southeast by Thursday morning. The interaction of a developing low-pressure system with moisture from the Gulf of Mexico will lead to sprawling areas of heavy rain and embedded severe thunderstorms.
- Texas Big Bend and Rio Grande Valley: Critical fire danger is expected to shift into the Texas Big Bend and Rio Grande Valley. This suggests dry and windy conditions conducive to the spread of wildfires in these areas.
- Eastern Texas to Arklatex Region: A vigorous upper-level trough interacting with Gulf moisture will bring heavy rain and severe thunderstorms to eastern Texas into the Arklatex region. This will gradually intensify a low-pressure system, leading to strong to severe thunderstorms along a potent cold front.
- Flooding Concerns and Severe Weather Threat: Heavy rain may lead to flooding concerns from the Texas Panhandle, with the highest threat across the Mid-South through Wednesday. This threat will spread into the Midwest and lower Great Lakes early on Thursday. Severe weather, including strong thunderstorms, is expected along the path of the low-pressure system.
- Quiet Weather Elsewhere: Apart from the intensifying low-pressure system, relatively quiet weather is expected elsewhere. Cloud cover and rain across the northern Plains into the upper Great Lakes will taper off as an old cyclone moves into southern Canada. Scattered showers will reach into the lower Great Lakes and New England. The Pacific Northwest will see some moisture and high elevation light snows before drying out. A warming trend is forecast for the West and East Coasts and northern tier states, while cooler than normal temperatures will persist across the South.
Overall, residents in the affected regions should stay informed about weather updates and be prepared for potential severe weather and flooding events.