Hurricane-Fueled Storm System Threatens US Southwest with Flooding Ahead of Halloween

The remnants of Hurricane Vance are poised to bring significant rainfall and potentially hazardous conditions to millions across the US Southwest through the weekend, threatening Halloween celebrations and travel.

A widespread Flood Watch has been issued for parts of Texas, New Mexico, and Arizona, with predictions of several inches of rain, mudslides, and life-threatening flash floods from Thursday night into Saturday. AccuWeather experts warn that Texas will be the first state impacted, with the storm system then moving westward.

Isolated areas in Texas could experience as much as 12 inches of rain between Thursday night and Friday night, according to AccuWeather's worst-case scenario. The National Weather Service (NWS) has cautioned that heavy rainfall could lead to flash flooding in creeks, streams, low-water crossings, roads, and poorly drained urban areas.

"There is a potential for life threatening flooding," the NWS stated in its Flood Watch alert. Officials highlighted the particular risk to drivers, warning, "Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles."

The storm's moisture originates from the remnants of Hurricane Vance, a tropical cyclone that has been moving slowly through the Pacific Ocean for several days. Meteorologists predict that even after the heaviest rain moves out of an area, flooded roads could still cause significant travel disruptions.

The most severe impacts are anticipated in West and Central Texas, and portions of southeast New Mexico. Areas such as Midland-Odessa, Lubbock, the South Plains, Big Spring, Fort Stockton, Alpine, Del Rio, Eagle Pass, and surrounding counties are in the storm's projected path. In New Mexico, Hobbs, Carlsbad, and the Guadalupe Mountains are also within the flood risk zone.

The storm system is expected to bring heavy rain and thunderstorms to Arizona on Friday and Saturday, with Flood Watches issued for the Phoenix, Flagstaff, and Tucson areas from Saturday night into Sunday. Meteorologists predict that between one and three inches of rain could fall in many parts of Texas and New Mexico overnight, with isolated areas receiving four to six inches or more.

Beyond the immediate threat in the Southwest, less intense rain is expected to fall across the South, Southwest, and Midwest between Friday and Halloween. This includes showers and thunderstorms anticipated in the rest of Texas, Oklahoma, Louisiana, Kansas, Missouri, Nebraska, Iowa, Illinois, Indiana, Colorado, Utah, and Nevada. Experts note that rain may disrupt outdoor activities on Friday and Friday night from southern Texas into western and central Kansas, with heavy rainfall potentially causing flash flooding throughout the Halloween period.