Study Aviation Weather and Navigation
Weather kills more people in aviation than almost any other single factor. As a flight dispatcher, your primary job is to determine whether a flight can operate safely, and weather is the variable that changes everything. You will be jointly responsible with the pilot-in-command for the safety of every flight you dispatch. If you send an aircraft into conditions you failed to analyze properly, people can die. That is not an exaggeration. It is the reason this step comes first.
A dispatcher who truly understands weather does not just read reports. They interpret mesoscale patterns, anticipate developments hours before they arrive, and build routes that keep aircraft away from danger while keeping airlines on schedule. This skill set takes years to refine, but the foundation starts here, with learning to decode the standard weather products that the aviation industry runs on.
Why Weather Is THE Dispatcher Skill
Pilots see weather through the windshield and on their onboard radar. Dispatchers see it from above, across the entire route of flight, hours before the aircraft even pushes back from the gate. You are the strategic weather decision-maker.
On any given shift, a dispatcher at a major airline might be monitoring 15 to 20 active flights simultaneously. A line of thunderstorms building across the Southeast might force reroutings for half of them. A volcanic ash advisory over the North Atlantic might close oceanic tracks. A surprise fog event at your destination might require you to identify an alternate airport and ensure every flight has enough fuel to reach it.
None of that is possible if you cannot read a METAR, interpret a TAF, understand what a SIGMET means operationally, or look at a prognostic chart and see where the problems will be four hours from now. Weather literacy is not one skill among many for a dispatcher. It is the skill that every other skill depends on.
AI is now augmenting how dispatchers analyze weather, and the tools are getting better every year. Machine learning models can process satellite imagery, radar data, and atmospheric models simultaneously to generate turbulence forecasts and convective predictions that are more accurate than traditional methods alone. Products like WSI Pilotbrief and Tomorrow.io use AI to provide hyper-local weather predictions tailored to aviation operations, identifying threats that conventional products might miss or flag too broadly. But AI complements dispatcher judgment — it does not replace it. Understanding the fundamentals is essential because you need to evaluate when the AI is wrong, when its confidence intervals are too wide to be useful, and when conditions on the ground do not match what the model predicted. The dispatchers who will thrive are the ones who master traditional weather analysis and know how to layer AI tools on top of it.
The Core Weather Products You Must Learn
METARs (Meteorological Aerodrome Reports)
A METAR is a standardized observation of current weather conditions at an airport. They are issued at least once per hour (typically at 53 or 56 minutes past the hour) and updated with a SPECI report whenever conditions change significantly.
A typical METAR looks like this:
METAR KJFK 121856Z 31012G22KT 10SM FEW045 SCT250 24/11 A3002 RMK AO2 SLP168
That string of text tells you the station (JFK), the date and time (12th day, 1856 Zulu), wind direction and speed (310 degrees at 12 knots gusting 22), visibility (10 statute miles), cloud layers (few at 4,500 feet, scattered at 25,000 feet), temperature and dewpoint (24/11 Celsius), altimeter setting (30.02 inHg), and remarks.
Learning to decode METARs rapidly and accurately is non-negotiable. You need to be able to glance at a METAR and immediately understand the operational picture: can aircraft land? Is visibility above approach minimums? Is the crosswind within limits for the aircraft type?
TAFs (Terminal Aerodrome Forecasts)
A TAF is a forecast of conditions at an airport, typically covering a 24- or 30-hour period. TAFs use the same encoding as METARs but add forecast change groups using keywords like FM (from), TEMPO (temporary), BECMG (becoming), and PROB30/PROB40 (probability).
TAFs are critical for dispatch because you need to know what conditions will look like when your flight arrives at its destination, not just what conditions are right now. If a TAF shows the destination going below minimums during your flight’s estimated arrival window, you need to plan accordingly: select an alternate, add fuel, or potentially delay the departure.
SIGMETs and AIRMETs
SIGMETs (Significant Meteorological Information) warn of weather phenomena that are hazardous to all aircraft: severe or extreme turbulence, severe icing, widespread dust or sandstorms, volcanic ash, and tropical cyclones. Convective SIGMETs specifically address thunderstorm activity — lines of thunderstorms, embedded thunderstorms, or areas of heavy precipitation with thunderstorms.
AIRMETs (Airmen’s Meteorological Information) cover hazards that are significant primarily to smaller aircraft but still operationally relevant: moderate turbulence, moderate icing, sustained IFR conditions, and mountain obscuration. Even as an airline dispatcher working with large aircraft, AIRMETs inform your situational awareness.
When a SIGMET is issued for your route of flight, you have a decision to make: reroute, delay, or determine that the conditions are manageable for the aircraft type with the pilot’s concurrence. This is where dispatcher authority meets real-world judgment.
Prognostic Charts and Surface Analysis
Surface analysis charts show current positions of fronts, pressure systems, and precipitation areas. Prognostic charts (progs) show where those systems are forecast to be at 12, 24, 36, and 48 hours in the future.
Learning to read progs is where you shift from reading individual station reports to understanding the larger weather picture. A cold front draped across the Ohio Valley with a strong surface low will produce a predictable pattern of hazards: prefrontal convection, frontal turbulence, postfrontal gusty winds and low ceilings. If you can read the prog chart and anticipate those hazards, you can plan routes and alternates proactively instead of reacting to problems after they develop.
Winds and Temperatures Aloft
The FB (winds and temperatures aloft forecast) tells you what the wind speed, wind direction, and temperature are forecast to be at various flight levels. This directly affects fuel planning. A 50-knot headwind at FL350 might make FL310 a more efficient altitude even though the aircraft burns slightly more fuel per mile at the lower altitude. Dispatchers use winds aloft data constantly when building flight plans.
Navigation Fundamentals
While weather is the dominant skill, dispatchers also need a solid understanding of air navigation. You will be building routes, selecting alternates, and communicating with pilots about routing changes.
Airspace Structure
The National Airspace System (NAS) is divided into classes: A, B, C, D, E, and G. Class A airspace (above 18,000 feet MSL) is where most airline operations occur, and all flights in Class A operate under Instrument Flight Rules (IFR). Understanding how airspace is structured, what the rules are in each class, and where Special Use Airspace (restricted areas, MOAs, prohibited areas) exists is essential for route planning.
VOR Navigation and Airways
VORs (VHF Omnidirectional Range) are ground-based radio navigation stations that define the airway structure in the United States. Victor airways (below 18,000 feet) and Jet routes (at and above 18,000 feet) connect VOR stations. While GPS and RNAV have largely replaced VOR-to-VOR navigation for airlines, the airway structure still forms the backbone of IFR routing, and ATC frequently issues clearances referencing VOR-based fixes and airways.
You should be able to read a sectional chart or IFR en route chart, identify VORs, airways, intersections, and minimum en route altitudes. The FAA publishes these charts through the FAA Aeronautical Charts page, and digital versions are available through tools like SkyVector at skyvector.com.
RNAV and GPS Routes
Modern airline operations increasingly use RNAV (Area Navigation) routes, which are not tied to ground-based VORs. Q-routes and T-routes are RNAV replacements for jet routes and victor airways, respectively. Understanding RNAV concepts, including RNP (Required Navigation Performance) approaches, is important for modern dispatch work.
Free Resources to Start Learning Today
Aviation Weather Center (AWC)
aviationweather.gov is your primary resource. This is the NWS/FAA’s official source for all aviation weather products. Bookmark it. Use it daily. The AWC provides:
- Real-time METARs and TAFs for every airport in the country
- Current SIGMETs, AIRMETs, and Convective SIGMETs
- Surface analysis and prognostic charts
- Winds and temperatures aloft forecasts
- Icing and turbulence forecasts (Current and Forecast Icing Products, Graphical Turbulence Guidance)
- Satellite and radar imagery
Start by pulling up the METAR and TAF for your nearest airport every morning. Decode them completely. Check back later in the day and see how the actual conditions compared to the forecast. This daily practice is how you build the pattern recognition that experienced dispatchers rely on.
It is also worth exploring AI-powered weather platforms alongside these traditional products. Windy.com uses machine learning ensemble models that blend multiple forecast sources into interactive visualizations — it is free and excellent for seeing how different models disagree on storm tracks and intensity. Tomorrow.io provides AI-powered aviation weather forecasts that go beyond standard products. As a learning exercise, compare what these AI tools predict with what the traditional METARs, TAFs, and prog charts show. Where do they agree? Where do they diverge? This kind of comparison builds the critical evaluation skills you will need as a dispatcher — understanding where AI excels at pattern detection and where it falls short on edge cases that experienced human forecasters catch.
FAA Pilot’s Handbook of Aeronautical Knowledge (PHAK)
Download from FAA.gov (FAA-H-8083-25B)
Chapters 12 through 13 of the PHAK cover weather theory and aviation weather services in detail. This is free, authoritative, and comprehensive. It is written for pilots, but dispatchers need the same foundational knowledge.
FAA Advisory Circular AC 00-45H (Aviation Weather Services)
This advisory circular is the definitive guide to every aviation weather product: what it means, how to decode it, and how to use it. It is dense but essential. Use it as a reference alongside your daily weather practice.
NWS JetStream Online Weather School
A free online weather course from the National Weather Service that covers atmospheric basics, pressure, wind, moisture, air masses, fronts, thunderstorms, tropical weather, and more. It is designed as self-paced learning and is an excellent supplement to the aviation-specific resources.
SkyVector
A free online tool that displays sectional charts, IFR en route charts, and allows you to look up airport information, plan routes, and visualize airways and airspace. Use it to practice reading charts and understanding the geography of the airspace system.
How to Practice: A Daily Routine
Here is a concrete study routine you can start today, even as a high school student with no aviation background.
Morning (10-15 minutes): Pull up the METAR and TAF for three airports: one near you, one major hub (like KATL, KORD, or KDFW), and one that frequently has challenging weather (like KSFO for fog, KDEN for wind, or KJFK for winter storms). Decode each report completely. Write down your interpretation: what are current conditions? What does the forecast say? Would you dispatch a flight there right now?
Weekly (1-2 hours): Read one chapter of the PHAK’s weather section or one section of AC 00-45H. After reading, go to aviationweather.gov and find real-world examples of what you just studied. Read about SIGMETs? Find the current SIGMET page and see if any are active. Study prognostic charts? Pull up the current 24-hour surface prog and identify the features.
Monthly: Pick a major weather event from the past week — a winter storm, a convective outbreak, a fog event — and reconstruct the weather story. Pull up the METARs, TAFs, SIGMETs, and progs from that period (aviationweather.gov archives recent data) and trace how the event developed. What would you have done as a dispatcher? When would you have started rerouting flights? What alternates would you have selected?
Building Toward the FAA Dispatch Knowledge Test
The FAA Aircraft Dispatcher Knowledge Test covers aviation weather extensively. Approximately 25-30% of the test questions relate directly to meteorology and weather services. The specific areas tested include:
- Interpreting METARs, TAFs, and pilot reports (PIREPs)
- Understanding SIGMETs, AIRMETs, and convective outlooks
- Reading surface analysis and prognostic charts
- Applying weather information to flight planning decisions
- Understanding icing, turbulence, thunderstorms, and volcanic ash hazards
If you build a strong weather foundation now, you will walk into your dispatcher course already ahead of your classmates, and the weather sections of the FAA practical test will feel manageable rather than overwhelming. While the current FAA exam focuses on traditional weather products and interpretation methods, the industry is rapidly adopting AI-powered dispatch optimization tools for routing, fuel planning, and weather avoidance. Dispatchers who understand both traditional methods and AI capabilities will be the most valuable hires as airlines continue integrating these systems into their operations.
What to Do Next
Start today. Go to aviationweather.gov and pull up the METAR for your nearest airport. If you cannot decode it yet, open the PHAK weather chapter or AC 00-45H and use them as references. Within a week of daily practice, you will be reading METARs fluently. Within a month, you will start seeing weather patterns instead of just isolated data points.
Download the PHAK from the FAA website and begin working through the weather chapters. Set up a bookmark folder with aviationweather.gov, SkyVector, and the NWS JetStream school. Make weather analysis a daily habit.
The dispatcher course you will eventually attend (Step 2) will teach you how to apply weather knowledge to dispatch decisions. But the students who arrive already fluent in METARs, TAFs, and prognostic charts are the ones who excel. Give yourself that advantage.