Overview

• The Storm Prediction Center issued Severe Thunderstorm Watch 613 through 10 p.m. MDT for southeast Colorado, southwest Kansas, northeast New Mexico, and the Oklahoma and Texas Panhandles, warning of hail up to 2 inches, wind gusts to 65 mph, and a brief tornado risk.
• An evening SPC mesoscale discussion kept the watch active, citing ongoing supercells and clusters from the Front Range to the Raton Mesa with hail and gusty winds as storms propagate southeast along a frontal zone.
• The National Weather Service in Phoenix issued a Flash Flood Warning for parts of Riverside County, reporting 0.5 to 1.5 inches of rain already with up to an additional inch possible and life-threatening flooding in creeks, urban areas, and low crossings.
• Flood watches cover much of Southern California, including the Inland Empire from Thursday morning to early Friday, with officials warning that burn scars and typical flood-prone spots face heightened risk.
• Remnant moisture tied to Mario is expected to produce rounds of heavy rain and thunderstorms across California through Friday, with forecasters flagging a low-confidence but potentially high-impact setup, average totals of 0.25 to 1 inch, and locally up to 2 inches where downpours repeat.