A multiday Extreme Heat Warning hits Las Vegas starting Thursday with highs in the low 110s. Clark County has opened cooling stations across the valley.

UH Mānoa-led study finds 25 human-made contaminants lodged in Maui coral tissues and links chemical changes to reduced reef resilience.

Yolo County has proclaimed a local emergency after golden mussels were found near West Sacramento, joining neighboring counties racing to protect Delta water infrastructure. Officials urge Clean, Drain, Dry and quick coordination.

Clear morning with highs into the upper 80s; scattered Sierra storms possible through Wednesday. Expect gusty SW winds and limited overnight relief.

Hot, sticky in Tampa with highs near 95°F and a high rip current risk at area beaches into Wednesday evening. Brief afternoon storms possible.

Breezy trades and spotty windward showers set the tone in Honolulu today. Small boats and beachgoers should monitor rising winds and building south-shore surf.

University of Miami and partners deployed three 3D‑printed SEAHIVE modules off Miami Beach to test whether hybrid reefs can cut wave energy and speed coral recovery.

A Cal Poly study finds robins and goldfinches are rising in parts of Southern California even as many species decline; local fixes like darker nights can help.

A boil order is in effect for Junction after flash flooding contaminated the town’s water system. Piute County is distributing bottled water at the firehouse while crews assess damage.

Hawaiʻi DOH has issued a brown water advisory at Hanamāʻulu Beach; officials urge avoiding brown or murky water after recent runoff and a June sewage spill.

After Saturday's monsoon storms, a Canutillo family is still cleaning up sinkholes and water damage near Selva Drive.

A Flash Flood Warning is in effect for Overton County through 10:15 p.m. CDT as heavy storms move through. Officials warn drivers to avoid flooded roads and monitor official alerts.

Portland hits the upper 90s with patchy smoke and a Heat Advisory through 11 p.m.; cooling centers and transit help are available.