Hot weather was expected to continue across the Central US on Wednesday, but the heat was forecast to expand more eastward and the Northern Plains could see some relief. The ridge of high pressure settled over the middle of the country was forecast to shift eastward contributing to hotter conditions to the Mid-Atlantic and Southeast. Forecasters called for temperatures between 90 and 100 with heat indices reaching 115 degrees.
In addition, high pressure positioned over the Gulf of Mexico was expected to continue pushing ample moisture onshore triggering showers and thunderstorms over eastern Texas and southern Louisiana. Tropical Storm Bret off the eastern coast of Florida was expected to move northeasterly into the North Atlantic Ocean and weaken to a tropical depression by early Thursday morning.
To the north, low pressure spinning over the Mid-Atlantic was forecast to bring heavy showers and thunderstorms to the region and to parts of the Southeast. Meanwhile, high pressure over the Northeast was expected to contribute to hot and humid conditions.
At the same time, low pressure positioned over the Northern Plains was forecast to bring cooler temperatures and push a frontal boundary through parts of the Upper Midwest. This boundary could kick up showers and possibly severe thunderstorms over northern Minnesota and into Canada.
To the west, monsoon moisture was likely to continue to push into the Southwest producing widespread showers over the Four Corners region. At the same time, low pressure in the Pacific Northwest was forecast to continue to bring cooler temperatures, scattered showers, and clouds. However, forecasters expected California and Nevada to see sunny and dry conditions with a few clouds.