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Latest news, analysis and updates about National Weather Service from Zorywire.

NWS outlooks place parts of the Central U.S. under severe thunderstorm and heavy rainfall concerns today. Large hail, damaging winds, tornadoes and flash flooding are possible from the central Plains toward the Midwest and Ohio Valley.

Three hikers died after apparent heat-related illness on the South Kaibab and North Kaibab trails, the National Park Service said. The National Weather Service has issued an Extreme Heat Warning for lower elevations of the Grand Canyon from Monday morning through Tuesday evening.

National Weather Service heat advisories are in effect today for parts of southeast Louisiana, southern Mississippi and South Florida. Heat index values are expected to reach as high as 108 to 109 in the advisory areas.

The National Weather Service says a heat advisory remains in effect for Houston and many Southeast Texas communities through Saturday night. Heat index values could reach 107 to 112 degrees, making air conditioning, hydration and limited outdoor activity important.

Flood Watches are active across parts of Texas today, including the Houston area, Southeast Texas, South Texas and Deep South Texas. Residents and travelers should monitor National Weather Service alerts, avoid flooded roads and be ready to act if warnings are issued.

The National Weather Service has posted Red Flag Warnings for parts of Northern California from Wednesday into Thursday, including Bay Area hills, Lake County and the Sacramento Valley. The warnings cite gusty winds, low humidity and conditions that could help fires spread quickly.



