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COLONIAL AIRLINES, INC. LA GUARDIA FIELD NEW YORK TO: All Flight and Operations Personnel FROM: Flight Superintendent SUBJECT: CHANGES IN REPORTING WEATHER Effective January 1, 1949, the following changes in reporting weather will be implemented by the U.S. Weather Bureau: 1. Cloud heights and ceilings of 10,000 feet or more will be reported in hundreds of feet to the nearest 1,000 feet, in a manner similar to that in which heights below this value have been previously reported. Slants will no longer be used to indicate cloud heights. Examples: [[2 column table]] |OLD FORM OF REPORT|NEW FORM| |1. DCA ⊕/15+|DCA M140⊕15+| |2. DCA (|)/10|DCA 180(|)10| |3. DCA E45⊕/(||)|DCA E45⊕(||)E150⊕| J. E. Reinke JER:jo