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T L O Action: The student will interpret the information contained in a surface analysis chart. Condition: Given pertinent information about surface.

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Presentation on theme: "T L O Action: The student will interpret the information contained in a surface analysis chart. Condition: Given pertinent information about surface."— Presentation transcript:

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3 T L O

4 Action: The student will interpret the information contained in a surface analysis chart. Condition: Given pertinent information about surface analysis charts. Standard: IAW AC 00-45F Enabling Learning Objective (ELO) A

5 SURFACE ANALYSIS CHART PURPOSE.... TO PROVIDE THE PILOT WITH A GENERAL PICTURE OF THE WEATHER AT A SPECIFIC TIME

6 SURFACE ANALYSIS CHART Chart is issued every 3 hours Information taken from METAR reports

7 CONDITIONS DETERMINED FROM CHART 1. SURFACE WINDS 2. FRONTAL SYSTEMS 3. PRESSURE SYSTEMS 4. SKY COVERAGE 5. TEMPERATURE AND DEW POINT 6.PRECIPITATION AND OBSCURATIONS 7.STATION PRESSURE (corrected for sea level)

8 15 13, METAR KATL Z 28025KT 4SM DZFG SCT014 BKN120 OVC300 15/13 A3049 RMK SLP

9 CLEAR FEW (1-2 octas) SCATTERED (3-4 octas) BROKEN (5-7 octas) OVERCAST (8 octas) OBSCURED SKY COVER MISSING REF: AC 00-45F

10 SKY CLEAR FEW SCT BKN OVC BINOVC OBSCURATION MISSING DATA

11 WIND DIRECTION

12 CALM 05 KNOTS 10 KNOTS 15 KNOTS 20 KNOTS 50 KNOTS 65 KNOTS WIND SPEED

13 15 13, TEMPERATURE 315

14 15 13, WEATHER & OBSCURATION 315

15 RAIN

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17 DRIZZLE SNOW ICE PELLETS HAIL SHOWER RAIN SHOWER SNOW SHOWER

18 T/STORM FREEZING RAIN FREEZING DRIZZLE FOG SMOKE HAZE

19 15 13, DEWPOINT 315

20 15 13, 315 STATION PRESSURE

21 1. STATION PRESSURE CORRECTED TO SEA LEVEL 2. SHOWN IN HECTOPASCALS / MILLIBARS = =866

22 15 13, PRESSURE TENDENCY (3 HOUR) hours ago

23 15 13, CURRENT STATION PRESSURE = PRESSURE TREND = INCREASING PRESSURE 3 HOURS AGO =

24 15 13, CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO DECREASING =

25 CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO INCREASE THEN STEADY = , 3 982

26 CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO DECREASE THEN STEADY = ,

27 CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO DECREASE THEN INCREASE = ,

28 CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO INCREASE THEN DECREASE = ,

29 CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO STEADY , 0 142

30 CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO INCREASE THEN DECREASE , 0 142

31 CURRENT STATION PRESSURE = PRESSURE TREND = PRESSURE 3 HOURS AGO DECREASE THEN INCREASE , 0 142

32 L H H t o L Indicated True

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35 L H IND TRUE H L L H

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37 Action: The student will interpret data contained in a weather depiction chart. Condition: Given pertinent information about weather depiction charts. Standard: IAW AC 00-45F Enabling Learning Objective (ELO) B

38 WEATHER DEPICTION CHART

39 PURPOSE - To portray areas of IFR, VFR and MVFR FREQUENCY - Issued every 3 hours

40 CLEAR FEW (1-2 octas) SCATTERED (3-4 octas) BROKEN (5-7 octas) OVERCAST (8 octas) OBSCURED SKY COVER MISSING OR PARTIAL OBSCURATION REF: AC 00-45F BREAKS IN OVERCAST

41 SKY CLEAR FEW SCT BKN OVC BINOVC OBSCURATION MISSING DATA

42 SKY CLEAR FEW SCT BKN OVC BINOVC OBSCURATION MISSING DATA

43 VISIBILITY ONLY SHOWN WHEN 5 SM OR LESS 4

44 VISIBILITY NO VISIBILITY SHOWN MEANS VISIBILITY IS GREATER THAN 5 SM

45 WEATHER AND OBSTRUCTIONS 4

46 Sky cover symbols shown on the weather depiction chart are the worst sky conditions (summation method) for that station. The altitude below the station will show the ceiling.

47 CLOUD BASE 4 No altitude will be given if FEW or SCT. If BKN or OVC, height is ceiling.

48 CLOUD BASE 4 5 No altitude will be given if FEW or SCT. If BKN or OVC, height is ceiling.

49 SCT010 BKN020 OVC030 W.D. S.A. 020 Using the summation method

50 FEW010 FEW020 SCT030 W.D. S.A.

51 VFR MVFR IFR CEILING AND VISIBILITY GREATER THAN CEILING AND / OR VISIBILITY LESS THAN AREAS DEPICTED To

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53 SHADED AREAS … IFR WITH CIG LESS THAN 1000 FT AND/OR VSBY LESS THAN 3 MI CONTOURED WITHOUT SHADING…MVFR AREAS WITH CIG GREATER THAN OR EQUAL TO 1000 TO LESS THAN OR EQUAL TO 3000 FT AND/OR VSBY GREATER THAN OR EQUAL TO 3 TO LESS THAN OR EQUAL TO 5 MI NO CONTOURS… VFR AREAS WITH CIG GREATER THAN 3000 FT AND VSBY GREATER THAN 5 MI

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55 METAR KATL Z 28025KT 4SM DZFG SCT014 BKN120 OVC300 15/13 A3049 RMK SLP315, W.D.S.A.,

56 Action: The student will interpret the information contained on a radar summary chart. Condition: Given pertinent information about radar summary charts. Standard: IAW AC 00-45F Enabling Learning Objective (ELO) C

57 RADAR SUMMARY

58 Radar Summary Chart Gives a three-dimensional viewpoint of clouds and precipitation Issued every hour

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62 CONTOURS AT LEVELS 1, 3, AND Light to Moderate Heavy to Very Heavy Intense to Extreme

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64 450 TOPS OF ECHO Maximum echo top does not equal maximum cloud top

65 30 Area/Line Movement CELL MOVEMENT

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68 Symbol Meaning RRain RWRain Shower SSnow SWSnow Shower TThunderstorm NENo Echoes NANot Available OM Out for Maintenance

69 Line of Echoes – Solid (SLD) WS999 WT999 HOOK Severe Thunderstorm Tornado Watch Hook Echo Severe weather watch area

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75 Safety First… Thunderstorms are not as bad as they look on the outside…. Theyre worse!

76 FM References for today Surface Analysis Chart 18-4 Weather Depiction Chart 18-5 Radar Summary 18-8

77 FM References for tomorrow… TAF App B-11 Winds Aloft Chart 18-10

78 Thats All Folks!


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