The first Alice developed Coming_to_be rather suddenly on June 24 over the Bay of Campeche , though it may well have formed Coming_to_be earlier but went undetected Having_or_lacking_access due to limited surface weather observations .

A violent tornado near Union City , Oklahoma was documented Recording in its entirety by chasers of the Tornado Intercept Project ( TIP ) in 1973 and visual observations led to Causation advancement in understanding of tornado structure and life cycles .

As a result of scattered observations at open sea , however , no ship encountered Hostile_encounter the storm until September 15 , by which time the cyclone had reached Arriving major hurricane intensity north of the Virgin Islands .

The fifth tropical cyclone and fourth hurricane of the year , it formed Coming_to_be as a tropical depression east of the Lesser Antilles on September 7 , though at the time weather observations in the area were sparse , so its formation Coming_to_be was inferred .

Already a tropical storm Catastrophe upon initial observations , the cyclone Catastrophe curved Motion_directional west-northwestward and intensified Cause_change_of_strength , becoming Becoming a hurricane Catastrophe on August 25 .