Federal Meteorological Handbook No. 1 - Marrella

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5.6 Summary of Wind Observing and Reporting Standards Table 5-2 summarizes the wind observing and reporting standards. Table 5-2. Summary of Wind Observing and Reporting Standards Parameter Observing and Reporting Standard Wind direction 2-minute average in 10 degree increments with respect to true north is reported. Wind speed 2-minute average speed in knots is reported. Wind gust Peak wind The maximum instantaneous speed in knots in the past 10 minutes is reported. The maximum instantaneous speed in knots (since the last scheduled report) shall be reported whenever the speed is greater than 25 knots. Wind shifts Wind shift and the time the shift occurred is reported. ��
CHAPTER 6 VISIBILITY ��
Page 1 and 2: U.S. DEPARTMENT OF COMMERCE/ Nation
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Page 13 and 14: 1.1 Purpose CHAPTER 1 INTRODUCTION
Page 15 and 16: 1.8 Unforeseen Requirements No set
Page 17 and 18: Manual and augmented weather observ
Page 19 and 20: a. Accuracy of Time in Reports. A p
Page 21 and 22: CHAPTER 3 CERTIFICATION AND QUALITY
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Page 27: Table 5-1. Estimating Wind Speed Kn
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Page 35 and 36: . Fog. A visible aggregate of minut
Page 37 and 38: (2) Proximity. Unless otherwise dir
Page 39 and 40: Table 8-5. Notations for Reporting
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Page 43 and 44: f. Sky Condition Range, Accuracy, a
Page 45 and 46: Table 9-3. Priority for Reporting L
Page 47 and 48: 10.1 General CHAPTER 10 TEMPERATURE
Page 49 and 50: 11.1 General CHAPTER 11 PRESSURE At
Page 51 and 52: 11.6 Summary of Pressure Observing
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Page 55 and 56: c. The values shall be based on lig
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Page 59 and 60: If the temperature is not available
Page 61 and 62: f. Tower or Surface Visibility (TWR
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Federal Meteorological Handbook No. 1 - Marrella

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