ERAU Advise Intentions Worksheet

Aviation WeatherModule 2 Advise Intentions Worksheet
Name:
Per the activity instructions, complete and submit your completed worksheet by the end of
Module 2.
Part A – Analysis of Surface Weather and Temperature Maps
1.
a. Zulu time is always 5 hours ahead. In this case, KSJT departure time is 1300 CDT.
– Same applies here. Arrival time in KEAR is 1900 CDT
b.
According to the surface weather map at KSJT, it shows clear skies around
the area. The temperature though is somewhat between 15 and 20 degrees C
meaning wind gusting and poor visibility. The surface pressure is between
1006mb and 1016mb, meaning that the weather is stable and there are no
signs of weather hazards.
According to the surface weather map at KEAR, in terms of hazardous
weather, there could be potential for icing due to the fact that the temperature
is somewhat between 0 – 5 degrees C. According to the surface pressure map,
there is a blue H which means that there is a presence of a high-pressure area.
The pressure around it is somewhat 1027mb, meaning clear skies and light
winds.
2.
When looking at the surface temperature map, comparing both KSJT and
KEAR, it can be said that there will be a decrease in temperature. At KSJT the
temperature is around 15-20 and when looking at KEAR, the temperature
decreases to 0 – 5.
Part B – Analysis of Pre-Flight Surface Weather at Departure and Destination
1. Station model plot decoded information [type in information as prompted below]
Departure (KSJT)
Wind (speed and direction): Wind is at 15 knots, northeast.
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Aeronautical University, Daytona Beach, Florida, 32114. No part of this material may be
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photocopying, recording or otherwise without the prior written consent of the University.
Surface temperature: 52 Fahrenheit
Surface dew point temperature: 33 Fahrenheit
Altimeter setting: 30.15 Hg
Sky Cover: At Departure, the skies are clear.
Destination (KEAR)
Wind (speed and direction): Wind is at 20 knots, northwest
Surface temperature: 37 Fahrenheit
Surface dew point temperature: 0 Fahrenheit
Altimeter setting: 30.23 Hg
Sky Cover: At Destination, the skies are clear as well.
2. METAR decoded information [type in information as prompted below]
Departure (KSJT)
Wind (speed, direction, and gusts): The wind blows from 50 degrees at 09 knots with
gusts at 16 knots.
Visibility: 10SM
Ceiling: None
Sea level pressure: 1020.9 mb
Present weather (if none, state “none”): none
Destination (KEAR)
Wind (speed, direction, and gusts): The wind blows from 310 degrees at 10 knots with
gusts at 22 knots.
Visibility: 10SM
Ceiling: None
Sea level pressure: 1025.9
Present weather (if none, state “none”):
3. There are remarks in the METAR report. It shows that right before the arrival at
1842Z, there is a presence of peak winds blowing at 310 degrees at 26 knots.
Part C – Analysis of Forecast Information (TAFs)
1. Comparing the weather conditions for KSJT within that 1-hour timeframe, there are clear
skies and broken clouds AT 2,500ft. Also, according to the TAF report, the visibility is 6SM
compared to the METAR report which was 10SM.
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2. For KEAR, the TAF report is also showing decent visibility at 6SM with scattered clouds at
4000 ft. At mid night, it shows wind blowing at 310 degrees with 14 knots with scattered
clouds at 25000ft. At 0300, some variable direction winds at 06 knots with scattered clouds
at 12000ft. At 1700, winds blowing at 270 degrees at 15 knots with gusting winds at 22
knots with broken clouds at 7000ft.
Part D – Analysis of Potential Air Pressure-Related Weather Hazards
1. [type your discussion here]
2.
a. 28.12 in Hg
b. [type your discussion here]
c. 1740.2 ft
3. [type your discussion here]
Part E – Summary Pre-Flight Weather Briefing (10 pts)
[type your discussion here]
Part F – Self-Reflection (10 pts)
[type your self-reflection here]
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Aviation Weather
Module 2 Advise Intentions Activity
Instructions
Analyze the weather information in Module 2 Advise Intentions Activity Weather Information
(DOCX), provided in Module 2, to answer the questions in each part of the activity below. Type
and save your work within the worksheet document provided in Module 2, NOT within
this document. Then upload your completed worksheet to the course website.
In answering the questions below, keep in mind the differences between weather and flight
weather hazards or impacts. For example, fog and low clouds describes weather, and the
associated impacts or hazards would be low ceilings and low visibility.
In this activity, you will be guided in completing a partial pre-flight weather analysis for a flight
from San Angelo Field in Southern Texas (KSJT – elevation 1919 feet) to Kearney Municipal
Airport in Southern Nebraska (KEAR – elevation 2152 feet). The flight, in a Cessna 172 aircraft,
is 566 miles, with an estimated flight time of about 4 hours. The planned departure time and
date is 2000 Z on 13 April 2020. The departure and destination locations are identified on the
maps in the weather information file referenced above.
For the activity, pretend that it is 13 April 2020 and that you are completing the tasks before the
flight took place. Your analysis will NOT include a complete assessment of the weather
conditions for the entire flight.
Type and save your work within the worksheet document provided in Module 2, NOT
within this document.
Part A – Analysis of Surface Weather and Temperature Maps
1. Analyzing each of the surface maps, one valid at 1800 UTC (1800 Z) on 13 April (2 hours
prior to departure) and the other valid at 0000 UTC (0000 Z) on 14 April (the planned arrival
time):
a. (2 pts) What are the local times at the departure and destination (both are in Central
Daylight Time (CDT)) corresponding to the valid time of each of the maps?
b. (8 pts) Based only on the surface weather maps, describe the surface weather at the
departure and destination airport at the valid times of the maps. For each airport,
indicate any significant flight weather hazards based on your analysis of the weather.
2. (8 pts) Analyzing the surface temperature map, valid at 0000 UTC (0000 Z) on 14 April
(the planned arrival time), describe the expected changes in surface temperatures between
the departure and destination along the flight route. Support your discussion with
quantitative evidence (i.e., actual temperature values) from the surface temperature map
only.
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All rights are reserved. The material contained herein is the copyright property of Embry-Riddle
Aeronautical University, Daytona Beach, Florida, 32114. No part of this material may be
reproduced, stored in a retrieval system or transmitted in any form, electronic, mechanical,
photocopying, recording or otherwise without the prior written consent of the University.
Part B – Analysis of Pre-Flight Surface Weather at Departure and Destination
1. (10 pts) Decode the surface observation station model plots valid at 1900 Z (1 hour prior to
planned departure) and provide the following information (include appropriate units):
Departure (KSJT)
Wind (speed and direction):
Surface temperature:
Surface dew point temperature:
Altimeter setting:
Sky Cover:
Destination (KEAR)
Wind (speed and direction):
Surface temperature:
Surface dew point temperature:
Altimeter setting:
Sky Cover:
2. (10 pts) Decode the METAR reports valid at 1900 Z and provide the following information
(include appropriate units):
Departure (KSJT)
Wind (speed, direction, and gusts):
Visibility:
Ceiling:
Sea level pressure:
Present weather (if none, state “none”):
Destination (KEAR)
Wind (speed, direction, and gusts):
Visibility:
Ceiling:
Sea level pressure:
Present weather (if none, state “none”):
3. (5 pts) Analyze the surface observations and METAR reports for KSJT and KEAR. Discuss
any notable flight weather hazards at the departure (KSJT) or destination (KEAR) 1 hour
prior to flight. Support your discussion with information from the surface observations and
METAR reports.
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Part C – Analysis of Forecast Information (TAFs)
1. (5 pts) Compare the 1900 Z METAR and station model observations with the TAF forecast
information for the departure airport, KSJT. Discuss any significant changes in the weather
conditions between 1900 Z (1 hour prior to planned departure) and 2000 Z (the planned
departure time).
2. (5 pts) Compare the 1900 Z METAR and station model observations with the TAF forecast
information for the destination airport, KEAR. Discuss any significant changes in the weather
conditions between 1900 Z (1 hour prior to planned departure) and 0000 Z (the planned
arrival time).
Part D – Analysis of Potential Air Pressure-Related Weather Hazards
1. (10 pts) Discuss any potential concerns with altimeter accuracy along the flight route.
Support your discussion using valid parts of the analysis done in parts A-C above.
2. (9 pts) Calculate the following for the departure (KSJT) using the appropriate data from the
1900 Z observation (include appropriate units):
a. Station Pressure (use the National Weather Service Station Pressure Calculator):
b. Surface pressure altitude (use the National Weather Service Pressure Altitude
Calculator):
c. Density Altitude (use the National Weather Service Density Altitude Calculator):
3. (8 pts) From the above calculations, draw some conclusions about whether an aircraft’s
performance would be enhanced or reduced in the vicinity of the airport.
Part E – Summary Pre-Flight Weather Briefing (10 pts)
Based on your analysis and discussion in parts A – D above, summarize the expected weather
conditions and flight hazards at take-off and landing.
Part F – Self-Reflection (10 pts)
The Advise Intentions activities are designed to prepare you for the Pre-Flight Weather SelfBriefing activity, where you will synthesize all knowledge and skills gained in the course.
Formulate a brief (less than 100 words) evaluation of the extent to which the knowledge and
skills you have gained thus far in the course prepared you to complete the tasks in this activity.
Support your evaluation with specific evidence, citing specific lessons and activities previously
completed. Your evidence may also include applicable experiences and knowledge acquired
outside of this course.
Type and save your work within the worksheet document provided in Module 2, NOT
within this document. Submit the entirely completed worksheet by the end of Module 2.
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Flight Information
Departure/Destination: KSJT/KEAR
Flight Distance: 566 nmi
Aircraft: Cessna 172 (Cruise speed 140 mph)
Flight time: ~4 hours
Planned departure: 2000 Z
Planned arrival: 0000 Z
Departure: KSJT (San Angelo Mathis Field, TX) Elev. 1919 feet
METAR: KSJT 131851Z 05009G16KT 10SM CLR 11/01 A3015 RMK AO2 SLP209 T01110006 $
Station model of 1900 Z observation:
TAF: KSJT 131736Z 1318/1418 04011KT P6SM SKC
FM132300 06012KT P6SM SKC
FM140900 04007KT P6SM BKN025
Destination: KEAR (Kearney Municipal, NE) Elev. 2152 feet
METAR: KEAR 131856Z AUTO 31010G22KT 10SM CLR 03/M18 A3023 RMK AO2 PK WND 31026/1842
SLP259 T00281178
Station model of 1900 Z observation:
TAF: KEAR 131720Z 1318/1418 32018G27KT P6SM SCT040
FM140000 31014KT P6SM SCT250
FM140300 VRB06KT P6SM SCT120
FM141700 27015G22KT P6SM BKN070
College of Arts & Sciences | worldwide.erau.edu
All rights are reserved. The material contained herein is the copyright property of Embry-Riddle Aeronautical University,
Daytona Beach, Florida, 32114. No part of this material may be reproduced, stored in a retrieval system or transmitted
in any form, electronic, mechanical, photocopying, recording or otherwise without the prior written consent of the
University.
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