However, because an area of poor visibility prevailed 300 to 400 miles to the northwest,
it might be impossible to discover enemy carriers the day before they reached attacking range if they approached from that direction.
　Battle of Midway June3-6,1942 Naval History and Heritage Command U.S. Navy

The Japanese suffered a severe defeat at Midway. Had they made less skillful use of the weather,
defeat might have turned into annihilation. In the initial stages of the attack, their use of the weather
furnished concealment for their approaching carrier force behind a moving front.
　The Battle of MidwayAerology and Naval Warfare