Federal Meteorological Handbook No. 1 - Marrella

More documents

Recommendations

Info

When more than one type of present weather are reported at the same time, present weather shall be reported in the following order: � Tornadic activity--Tornado, Funnel Cloud, or Waterspout. � Thunderstorm(s) with or without associated precipitation. � Present weather in order of decreasing dominance, i.e., the most dominant type is reported first. � Left-to-right in Table 8-5 (Columns 1 through 5). The reporting notations given in Table 8-5 shall be used to report present weather. (For definitions of present weather, refer to Appendix A - Glossary). 8.5.1 Precipitation. Precipitation shall be reported when occurring at the point of observation. Precipitation not occurring at the point of observation but within 10 statute miles shall be reported as showers in the vicinity. a. Liquid Precipitation (1) Drizzle. (see paragraphs 12.6.8.a(1), 12.6.8.c(1), and 12.7.1.k). (2) Rain. (see paragraphs 12.6.8.a(1), 12.6.8.c(1), and 12.7.1.k). (3) Rainshower(s). (see paragraphs 12.6.8.a(1), 12.6.8.b(3), 12.6.8.c(1), and 12.7.1.k). b. Freezing Precipitation (1) Freezing Rain. (see paragraphs 12.6.8.a(1), 12.6.8.b(5), 12.6.8.c(1), 12.7.1.k). (2) Freezing Drizzle. (see paragraphs 12.6.8.a(1), 12.6.8.b(5), 12.6.8.c(1), and 12.7.1.k). c. Solid Precipitation (1) Snow. (see paragraphs 12.6.8.a(1), 12.6.8.c(1), 12.7.1.k). (2) Snowshower(s). (see paragraphs 12.6.8.a(1), 12.6.8.b(3), 12.6.8.c(1), and 12.7.1.k). (3) Blowing Snow. (see paragraphs 12.6.8.a(1), 12.6.8.b(2), and 12.6.8.c(1)). (4) Low Drifting Snow. (see paragraphs 12.6.8.a(1), 12.6.8.b(2), and 12.6.8.c(1)). (5) Snow Grains. (see paragraphs 12.6.8.a(1), 12.6.8.c(1), 12.7.1.k). (6) Ice Crystals. (see paragraphs 12.6.8.a(1), 12.6.8.c(1), and 12.7.1.k). (7) Ice Pellets. (see paragraphs 12.6.8.c(1) and 12.7.1.k). Ice Pellet shower(s). (see paragraphs 12.6.8.b(3), 12.6.8.c(1), and 12.7.1.k). (8) Hail. Hail shall be reported, at designated stations. (see paragraph 12.7.1.k and 12.7.1.n). Hail shower(s). (see paragraphs 12.6.8.b(3), 12.6.8.c(1), 12.7.1.k, and 12.7.1.n). (9) Small Hail and/or Snow Pellets. (see paragraphs 12.6.8.c(1)). Small Hail and/or Snow Pellets Shower(s). (see paragraphs 12.6.8.b(3), 12.6.8.c(1), and 12.7.1.n). d. Unknown Precipitation. Unknown precipitation shall only be reported by automated stations to indicate precipitation of unknown type when the automated system cannot identify the precipitation with any greater precision (see paragraph 12.6.8.c(2)). ��
Table 8-5. <strong>No</strong>tations for Reporting Present Weather 1 QUALIFIER WEATHER PHENOMENA INTENSITY OR PROXIMITY DESCRIPTOR PRECIPITATION OBSCURATION OTHER 1 2 3 4 5 ��
Page 1 and 2: U.S. DEPARTMENT OF COMMERCE/ Nation
Page 3 and 4: ��
Page 11 and 12: ��
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
Page 23 and 24: � ��
Page 25 and 26: � ��
Page 27 and 28: Table 5-1. Estimating Wind Speed Kn
Page 29 and 30: CHAPTER 6 VISIBILITY ��
Page 31 and 32: Table 6-1. Reportable Visibility Va
Page 33 and 34: ��
Page 35 and 36: . Fog. A visible aggregate of minut
Page 37: (2) Proximity. Unless otherwise dir
Page 41 and 42: ��
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
Page 53 and 54: ��
Page 55 and 56: c. The values shall be based on lig
Page 57 and 58: � � � � � � � � �
Page 59 and 60: If the temperature is not available
Page 61 and 62: f. Tower or Surface Visibility (TWR
Page 63 and 64: o. Virga (VIRGA_(DIR)) [Plain Langu
Page 65 and 66: 12.7.2 Additive and Automated Maint
Page 67 and 68: e. 6-Hourly Maximum Temperature (1s
Page 69 and 70: � � � � Table 12-8. 3-Hour
Page 71 and 72: ��
Page 73 and 74: ��
Page 75 and 76: ��
Page 77 and 78: ��
Page 79 and 80: ��
Page 81 and 82: ��
Page 83 and 84: � ��
Page 85 and 86: ��
Page 87 and 88: � ��
Page 89 and 90:
��
Page 91 and 92:
��
Page 93 and 94:
��
show all

Federal Meteorological Handbook No. 1 - Marrella

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?