National Weather Service United States Department of Commerce

Excessive Rainfall and Flooding Threat in the South; Hazardous Heat in the Western U.S. Expanding to the Northern Plains

Multiple rounds of heavy rain and thunderstorms across portions of the Texas and Louisiana Coast will likely lead to flash, urban, small stream and river flooding. An additional heavy rainfall threat will exist from the Lower Mississippi Valley through the southern Mid-Atlantic. Meanwhile, a dangerous heat threat will continue across the Western U.S. and northern Plains through Thursday. Read More >

Today will be hot with the high temperature in many places reaching or exceeding 100 degrees. Tonight will be warm with low temperatures in the 60s to 70s, resulting in little relief from the heat. Much of south central and southeast Montana and north central Wyoming has a HeatRisk of 3 or major, meaning that this level of heat affects anyone without effective cooling and/or adequate hydration. Impacts are likely in some health systems, heat-sensitive industries and infrastructure. Be sure to stay hydrated, wear light colored clothing, reduce outdoor activities, stay in air-conditioned rooms and help the elderly, kids and pets to stay cool.
A few thunderstorms over the west may become severe today. Wind gusts up to 55 mph are the main threat within any storms, and brief periods of heavy rain and small hail are also possible.
Extreme heat will impact the region this week. The hottest days will be Today & Thursday, when temperatures over 100° are expected. There is also potential for a cold front to produce thunderstorms along with gusty winds late Thursday. Fire danger is increasing across the region so please take care to not spark a fire!
Critical fire weather conditions are expected Thursday into Thursday night. A cold front is expected to move through Thursday evening with gusty, shifting winds and increased thunderstorm activity. Added to highs in the triple digits, relative humidities down into the teens, and southwest winds Thursday afternoon gusting 25 to 35 mph, critical fire weather conditions will be present. Rapid fire growth is possible!
Thursday will be hot with the high temperature reaching the 90s to 108. A portion of south central Montana and much of southeast Montana and north central Wyoming has a HeatRisk of 3 or major, meaning that this level of heat affects anyone without effective cooling and/or adequate hydration. Impacts are likely in some health systems, heat-sensitive industries and infrastructure. Be sure to stay hydrated, wear light colored clothing, reduce outdoor activities, stay in air-conditioned rooms and help the elderly, kids and pets stay cool.

 

Text Product Selector (Selected product opens in current window)