The National Weather Service has issued A SEVERE THUNDERSTORM WARNING for the following counties/areas: Yazoo, MS; at 5:22 PM on AUG 20, 2026 Effective until 6:52 PM. Message from WBBV. 

The National Weather Service has issued A TORNADO WARNING for the following counties or areas: Chester; Delaware, PA; at 3:22 PM on AUG 20, 2026 Effective until 4:07 PM. Message from WKDE. 

The National Weather Service has issued A TORNADO WARNING for the following counties or areas: Chester, PA; at 3:22 PM on AUG 20, 2026 Effective until 4:07 PM. Message from WKDE. 

The National Weather Service has issued A SEVERE THUNDERSTORM WARNING for the following counties/areas: George, MS; Mobile, AL; at 5:22 PM on AUG 20, 2026 Effective until 6:07 PM. Message from KMOB/NWS. 

The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties/areas: West North Atlantic Ocean; at 5:17 PM on AUG 20, 2026 Effective until 6:47 PM. Message from KMHX/NWS. 

The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties/areas: Mobile Bay, Gulf of Mexico; Gulf Of Mexico; at 5:15 PM on AUG 20, 2026 Effective until 6:45 PM. Message from KMOB/NWS. 

The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties/areas: Delaware Bay waters north of East Point,NJ to Slaughter Beach,DE, Northwest Atlantic; at 5:13 PM on AUG 20, 2026 Effective until 7:13 PM. Message from KPHI/NWS. 

A civil authority has issued A REQUIRED WEEKLY TEST for the following counties or areas: Clark, NV; at 4:12 PM on AUG 20, 2026 Effective until 4:27 PM. Message from WOLF/IP. This is a Required Weekly Test (RWT) of the Southern Nevada Operational Area Emergency Alert System. This message is originating from the City of North Las Vegas Emergency Operations Center in North Las Vegas, NV. This system is used for warnings and essential safety information. During emergencies, tune to a participating radio or television station for directions, safety instructions and other official information. No action is needed at this time. This is only a test.

The National Weather Service has issued A SEVERE THUNDERSTORM WARNING for the following counties/areas: Baldwin, AL; at 5:09 PM on AUG 20, 2026 Effective until 6:09 PM. Message from KMOB/NWS. 

The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Northwest North Atlantic Ocean; at 3:07 PM on AUG 20, 2026 Effective until 4:07 PM. Message from TGR/SAGE.