Probably by the EWS which uses the old civil defense siren system (you should still hear these periodically tested). Check on your local EWS radio or TV station for instructions. It will either tell you that this is a periodic test, or briefly describe the emergency and give instructions on what you should do.
Here in Montana EWS is used allot in the winter to report severe weather conditions and inform people to avoid travel in affected areas, and in the summer to report dangerous Forrest fire conditions (both often without the initial siren).
Paul Revere
Paul Revere warned the Americans that the British were coming. Hope this helps :D
The American president John Kennedy warned Krushev and Castro that the U.S Navy and Airforce would attack and destroy the Bay of Pigs if missiles were not taken out soon.
Warned has no prefixes or suffixes.
Be Warned was created in 2002.
Warned is the correct spelling.
Here Jesus was not warned to flee, but the angel warned Joseph in a dream.
I Was Warned was created in 1992-04.
Neville Chamberlain. He is known for his policy of 'appeasement' of Germany at Munich, a policy which ultimately failed.
Yes Galveston was warned but ignoredThe meteoroligist was warned that the hurricane was coming, but ignored it
The person who warned concord was Jake Grammon.
The Reader is Warned was created in 1939.