incividual cells drifting eastrard. wag te te Seti Movement of the cell sear rmiwetok to a position southeast of Lajuro gave strong south | westerly Zlow in the local erea on 28 February en? west sozthe west flow on 1] Larch, replacing the light variable winds witch existed on 23 = 25 February. | Contimed southward motior en4 apzroach of following cell from west brought west to northwest flow on 2 and 3 March. (4) . | At 50,000 feet, the slow movement of the clockwise e/~ culation from a position northwest of Eniwetok to south of : Uejuro changed the flow gradually frea north northrest to west southwest. After 1 Yerch this circulation continued its | movement to the southeast and wezkened, vith flow in the local area becoming west northwesterly. (5) At 60,000 feet, no clearly defined trend was presext. c% “Winds were quite light and erratic at this level, with easterly flow at higher levels. These variable winds persisted through } B2AVO plus 3 days. d. Differences between forecast and observed winds: In regard to the differences between forecast and observed winds, reference is cade toa report of Froiect 4.5, JTF THE=E, by Paiaer, Lilcer, and Stopinski. This report stcted that studies of the observa- is tional errors in upser wind ccservations teen by GO/l eqsiscem indicated thet for wind speeds above 10 knots, azpreximatelr if per cent of the observations varied by more than 20 degrees, eves da oemlea when the chservations were sade oy several cifferem frou: =*s, but with the seme aizberne uit. The cifferences hetweer. forecast ° ito ww be