BASIC WIND DATA MESSAGE [BWD]

Use to report wind direction and speed in 2,000 meter increments from the surface of the earth to an altitude of 30,000 meters. Reference: FM 34-81.
Posted : Monday, January 01, 1900

LINE 1 -- DATE AND TIME______________________________(DTG)

LINE 2 -- UNIT________________________________________(Unit Making Report)

LINE 3 -- TIME OF MEASUREMENT______________________(DTG of Measurement)

LINE 4 -- AREA________________________________________(Area of Validity)

LINE 5 -- LAYER MIKE_________________________________(Layer Indicator, Downwind Direction in Degrees True, and Wind Speed in Kilometers per Hour or Knots)

LINE 6 -- NARRATIVE__________________________________(Free Text for Additional Information Required for Clarification of Report

LINE 7 -- AUTHENTICATION___________________________(Report Authentication)