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 uoijjsod pue 9i 



(1,1, 



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8U|9Q 



aujoaaq itqs W 



0'S£ Wd ujojj i 



pue ! iai'w sdnc? 



'I/l/IdnojS: 



-uap! pue 0Q03! 



aq neqs /li 



aqj 0) pappe art 



i» 



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Jjodaj 0) pasn 



WJOj 8D03 oiaim • 



I 



TABLE 8: d 



a 



90% to 100% reliable 



1 75% to 100% reliable 



2 80% to 100% reliable 



3 75% to 90% reliable 

 * 60% to R0% reliable 



5 50% to 75% reliable 



6 Less than 50% reliable 



7 No reliability 



8 No wind 



9 Not used 

 (See Note 15) 



TABLE 15: D, D„, D_ 



Calm or stationary (or 

 at the station) 



NE 



E 



SE 



S 



SW 



W 



NW 



N 



All directions, no de- 

 finite direction, or 

 unknown, or no 

 report 



TABLE 25 : l e 



No report or unknown 

 Weak, decreasing 

 Weak, no change 

 Weak, Increasing 

 Moderate, decreasing 

 Moderate, no change 

 Moderate, Increasing 

 Strong, decreasing 

 Strong, no change 

 Strong, increasing 



General: 



1 . The code name RECCC Is used as a 

 prefix to the report, indicating 

 that it is a report from meteor- 

 ological reconnaissance flight. 



2. Present weather, cloud genera 

 and amounts, turbulence, and 

 surface data are reported for 

 a cylindrical portion of the 

 atmosphere approximately 30 

 nautical miles in radius with 

 the aircraft at the center at 

 the time of observation. The 

 lentgh of this cylinder extends 

 from the earth's surface to the 

 top of the atmosphere. Weather 

 beyond the circumference of the 

 observation cylinder is reported 

 as off course weather. 



3. The use of Section 1 is MANDATORY 

 and all the groups are alwaya in- 

 cluded in the message. If datum 

 Is not available for an element, 



a solldus (/), or a code figure 

 If appropriate, Is reported for 

 the element to indicate missing. 



4. The use of Section 2 Is OPTIONAL. 

 If Section 2 is used all of the 

 groups for which data are observed 

 shall be Included in the message. 

 The groups In Section 2 are self- 

 identifying; therefore, they can 

 be omitted from, Included In, or 

 repeated (as required) In the 

 message without confusion. 



NOTES CONTINUED ON REVERSE 



301 121010441 6 9 — 004 



FLD004000C0 



