### Ex-Tropical Storm Alvin Brings Unseasonal Rain to Southwestern and Central U.S.

The remnants of ex-Tropical Storm Alvin are set to bring wet weather to the Southwestern United States, where it will significantly enhance rainfall unusual for this time of year. This moisture is forecasted to create showers and thunderstorms in the Southwest through Monday, with cities like Phoenix and Tucson likely to experience these weather developments. The presence of additional clouds and rainfall will also lead to temperatures dropping by as much as 15 degrees.

Typically, June marks one of the driest months for this region, preceding the monsoon rains that arrive later in the summer. However, up to an inch of rain could drench parts of the Four Corners region, creating the possibility of localized flash flooding in southern Arizona through Monday morning.

Furthermore, the moisture from Alvin is expected to assist in the development of storms across the central U.S. throughout the week. As Alvin's moisture becomes integrated with a sprawling low-pressure system, severe thunderstorms are predicted from the Dakotas to the Central Plains on Monday and Tuesday.

According to NOAA's Storm Prediction Center, severe weather conditions are expected:
- On Monday, storms are anticipated from the Texas Panhandle to southern Minnesota, with potential sightings as far as western Texas and northern Minnesota. The main threats will be damaging winds and hail, affecting areas such as North Platte, Amarillo, Sioux Falls, and Denver.
- On Tuesday, the highest risk spans from central Texas to southern Wisconsin, with scattered storms possibly reaching the Upper Peninsula of Michigan. The primary dangers remain strong winds and hail, and regions including Dallas, Tulsa, Kansas City, Cedar Rapids, and Madison should stay alert.

For continuous updates, it is advised to keep an eye on weather forecasts. Jennifer Gray, a seasoned weather and climate writer for weather.com, has reported on major weather patterns and climate stories for the past 20 years.