As per reports, the National Weather Service forecasts adverse weather conditions across US on Thursday (17 July).

• Thunderstorms and high velocity winds are anticipated in Idaho, eastern Washington, eastern Oregon, western Montana, northeastern California, and northern Nevada. Hail is forecast in eastern Montana, North Dakota, South Dakota, western Nebraska, eastern Wyoming and north eastern Colorado.
• A moderate risk of excessive rainfall is in place for the south-central Gulf Coast of Louisiana, indicating a high probability of significant heavy rainfall totals and numerous instances of flash flooding. A broader Slight Risk covers the Mississippi, Alabama, and western Florida, extending into central Louisiana and far eastern Texas.
• Scattered rainfall and isolated cases of flash floods are anticipated in Arizona, New Mexico, and Oklahoma.
• A slight risk of excessive rainfall and scattered flash flooding is in place across West Virginia, southwestern Pennsylvania, western Maryland, eastern Tennessee, northern North Carolina, northern Georgia, northwestern South Carolina, southeastern Kentucky, Ohio Valley, Middle Mississippi Valley, adjacent Kansas, Texas, and Oklahoma.
• A frontal wave moving across central and Tidewater Virginia into coastal North Carolina is under a slight risk for excessive rainfall on Friday (18 July). Further north, the Upper Mississippi Valley will also experience a Slight Risk for scattered flash flooding as a warm front lifts.
• Persistent and widespread moderate to major heat risk is forecast to affect Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, Ohio Valley, and Lower Mississippi Valley, characterized by above 90 degrees Fahrenheit temperature combined with elevated humidity.
• Temperatures over 90 degrees Fahrenheit are also forecast for most of the Washington, Oregon, Idaho, northwestern Montana, and parts of Nevada, Utah, eastern California, southern Idaho, western Wyoming and western Oregon.