Extreme Rain & Flood Risk: Louisiana and Mississippi saw catastrophic downpours tied to Tropical Storm Arthur, with more flooding possible across parts of the Central U.S. into early next week, including a moderate risk area that touches Kansas, Nebraska, Iowa, and Missouri. Heat Watch: A dangerous Juneteenth heat wave pushed tens of millions under advisories and warnings, with officials urging caution for outdoor workers and vulnerable residents. Data Centers vs. Communities: Missouri leaders held an AI and data center forum as anti–data center protesters rallied at the Capitol; the debate centers on water, power costs, land use, and environmental protections, with Amazon’s $10B Missouri campus plan still tied up in a Sunshine Law lawsuit. Local Planning for Nature: St. Charles County is asking residents to weigh in on its Envision master plan draft, which puts rivers, floodplains, woodlands, stream corridors, and agricultural landscapes at the center of growth decisions. Invasive Species Alert: St. Louis County parks warned about a first-in-county hammerhead worm sighting, highlighting risks to native earthworms and soil health. Wildlife & Disease: Southern Illinois faces rising tick-borne alpha-gal syndrome as tick populations expand, raising new concerns for outdoor communities. Measles Update: CDC reported measles spreading across 41 jurisdictions, with Missouri among the affected states.