None. MLM The military did know that an attack from Japan was imminate. What it did lack was where the attack would happen. US military intelligence broke the Japanese code messages sent to the Japanese ambassodors in Washington that stated that they wanted them break off communications with America and to destroy all records and papers. This was a sign that an attack was coming. So the Americans knew an attack was coming but did not know where. Submitted by Mark Webb St. Louis, Missouri yet again by examining intercepts by "magic" it is apparent that there were many warnings for the coming hostilities from a long time preceading Dec 7 all the way up to the night before hostilities commenced.
Cryptographers may have had hints, diplomats may have had hints and politicians may have had hints. No one was sharing the information an no one had actionable facts.
There were no warnings. The Manhattan Project was a secret. This was the name of the research project that developed the atom bomb.
It is a "!" is a yellow triangle
This function includes having the ability to provide warnings and instructions to military personnel and to the general public?
In the U.S. tornado warnings are issued by local offices of the National Weather Service.
Maritime flags indicate this with two square red flags with a black square in the middle of each
1990
they were ready but they ignored the warnings thinking japan wouldn't do it
All sorts of warnings pertaining to weather. Storm warnings, flood warnings, hurricane warnings, heat wave warnings, blizzard warnings etc.
The US military assumed that any attacks on the military base would be done by immigrant saboteurs. They disregarded warnings of a massing Japanese fleet and stored their ammo along with lining their planes up on runways so that it/they could be monitored and kept away from said suspected saboteurs.
Many hazard warnings exist: flammable, corrosive, toxic, radioactive, explosive, etc.
Most tornado warnings are usually based on data from Doppler radar, which can indicate a strong mesocyclone or even the signature of a tornado itself, and on reports from spotters, who may report if a tornado is forming or already on the ground.