National Weather Service United States Department of Commerce

Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Back to US Map

 
Mouse over counties to view county name and SAME code

Transmitter Status

Legend
Normal  
Degraded  
Out of Service  
 

Areas Receiving Alert Tones

SAME Alerting Area

Coverage Area

 
 

Geolocation to get your browser location

(if you grant permission)