The dictionary entry which most aptly backs the meaning of the word 'reconnaissance' would be 're·con·nois·sance | ri-ˈkä-nə-zən(t)s \ noun' as it correctly describes the pronunciation of the word and its part of speech. <u>The word stands for 'the act of scouting or exploring to gain information' and it is used as the element of the noun phrase 'storm reconnaissance missions' which is acting as the object in the sentence</u>. Thus, this suggests that the these acts are pursued for gaining more information about the storms.