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Understanding Aviation Weather Reports: METARs and TAFs Explained for Student Pilots

By Brock Willes on Jul 22, 2026 12:07 PM |

Weather is one of the most important factors affecting flight safety and is a leading cause of training delays and flight cancellations. Meteorological Aerodrome Reports (METARs) and Terminal Aerodrome Forecasts (TAFs) form the foundation of aviation weather reports, which means it’s crucial that student pilots understand them.

This article explains how to read METARs and TAFs and where they fit into preflight planning, introduces other essential aviation weather products, and demonstrates how these resources work together to support safer go/no-go decisions before every flight.

What Is an Aviation Weather Report?

Aviation weather reports are standardized products created specifically for flight operations. They provide pilots with current observations, forecasts, hazard information, and other weather data needed to make informed operational decisions before and during flight.

Why Aviation Weather Uses Specialized Reports

Pilots rely on standardized aviation weather reports rather than general forecasts because they provide flight-specific information, such as:

Visibility
Cloud ceiling
Winds
Turbulence
Icing

Each weather product serves a different purpose, from reporting current conditions and forecasting future weather to identifying hazards and sharing pilot observations.

Where Student Pilots Get Weather Information

The Aviation Weather Center is the primary source of weather information for pilots and the FAA. During preflight planning, an official weather briefing for pilots is essential. Many pilots also use services such as 1800WXBrief and flight planning apps to access weather reports, forecasts, and briefing information.

How Weather Fits Into Preflight Planning

Weather should be evaluated for the:

Departure airport
Destination airport
Alternative airports (when required)
Entire route of flight

Instead of checking a single report, pilots compare multiple weather products and continue monitoring changing conditions before departure and throughout the flight.

Reading Aviation Weather Reports

With an understanding of where aviation weather information comes from and why it matters, the next step is learning how to read and interpret the reports that pilots use every day.

Understanding METAR for Student Pilots: Reading Current Weather Conditions

METARs provide a snapshot of current weather at an airport. Learning to decode each section helps student pilots quickly assess flight conditions.

What Is a METAR?

A METAR (Meteorological Aerodrome Report) is a routine aviation weather observation that describes current conditions at a specific airport. Most METARs are issued every hour, providing pilots with standardized information on:

Weather
Visibility
Winds
Clouds
Temperature
Atmospheric pressure

Since weather can change rapidly, airports also issue special reports (called SPECI reports) whenever significant conditions develop between scheduled observations. A SPECI report may be issued for conditions such as rapidly changing visibility, thunderstorms, or a substantial shift in wind direction or speed.

Together, routine METARs and SPECI reports provide pilots with timely weather information for flight planning, departures, arrivals, and en route decision-making.

Example: Breaking Down a METAR

Consider the following METAR example:

METAR KOSH 151853Z 21012G20KT 10SM -RA SCT030 BKN050 24/20 A2992

Airport Identifier and Observation Time – KOSH identifies Wittman Regional Airport. 151853Z means the observation was taken on the 15th day of the month at 1853 UTC (Zulu time). Knowing the observation time helps pilots determine how current the weather information is.
Wind Information – 21012G20KT indicates winds from 210° at 12 knots, gusting to 20 knots. Variable or gusty winds can significantly affect takeoffs and landings.
Visibility – 10SM reports 10 statute miles of visibility. Student pilots should pay attention to these values since reduced visibility can limit or prohibit visual flight rules (VFR) operations.
Weather Phenomena – The code -RA means light rain. Other common codes include SN (snow), BR (mist), FG (fog), and TS (thunderstorm). A minus sign (-) indicates light intensity, no symbol indicates moderate, and a plus sign (+) indicates heavy precipitation.
Cloud Coverage and Ceiling – SCT030 means scattered clouds at 3,000 feet, while BKN050 indicates a broken layer at 5,000 feet. Broken (BKN) and overcast (OVC) layers constitute a cloud ceiling, making them especially important for VFR pilots.
Temperature and Dew Point – 24/20 represents an air temperature of 24°C and a dew point of 20°C. As these values move closer together, the likelihood of fog and low cloud formation increases.
Altimeter Setting – A2992 indicates an altimeter setting of 29.92 inches of mercury. Pilots set this value before departure to ensure the altimeter displays an accurate altitude.

What Student Pilots Should Look for First

Rather than decoding every element immediately, student pilots should first determine whether the weather supports a safe flight. Begin by asking whether the reported conditions meet the legal requirements for VFR flight. Next, compare the conditions with your personal minimums, which may be more conservative than regulatory limits. Review recent observations and forecasts to determine if the weather is improving, remaining stable, or deteriorating.

It’s also important to look for any obvious hazards, such as:

Strong or gusty winds
Low ceilings
Poor visibility
Thunderstorms
Small temperature/dew point spread

These initial questions help prioritize your weather analysis and identify situations that may require delaying or canceling a flight.

Understanding TAF Aviation Weather: Forecasting Future Weather

While METARs describe current conditions, TAFs help pilots anticipate future weather. Understanding how to interpret a TAF allows student pilots to evaluate changing conditions before and during a planned flight.

What Is a TAF?

A Terminal Aerodrome Forecast (TAF) is an aviation weather forecast issued for airports, predicting expected weather conditions within the airport’s surrounding area. Most TAFs cover a 24- or 30-hour forecast period, depending on the airport. They are updated several times each day to reflect changing weather patterns.

Unlike a METAR, which reports observed conditions at a specific time, a TAF forecasts how weather is expected to change over time. Pilots use TAFs alongside current observations to determine whether conditions are likely to remain favorable, improve, or deteriorate before departure or arrival.

How to Read a TAF

Consider the following example:

TAF KOSH 151720Z 1518/1618 21012KT P6SM SCT040 FM160000 24015G25KT 5SM -RA BKN025 TEMPO 1602/1606 2SM TSRA BKN015CB BECMG 1608/1610 31010KT P6SM SCT035

The forecast is valid from 1800 UTC on the 15th through 1800 UTC on the 16th, so reading the beginning and ending times correctly is essential.
Initially, winds are forecast from 210° at 12 knots. FM160000 indicates that beginning at 0000 UTC on the 16th, winds shift to 240° at 15 knots with gusts to 25 knots, signaling stronger conditions.
Visibility remains greater than six statute miles before decreasing to 5SM with light rain (-RA).
TEMPO forecasts temporary thunderstorms with reduced visibility and cumulonimbus clouds, while BECMG indicates a gradual improvement as winds shift, visibility increases, and cloud ceilings lift.

Other TAFs may also include codes like PROB30 or PROB40 to indicate the probability of specified weather occurring during a defined time period.

Comparing and Using METARs and TAFs Together

METAR vs. TAF: Key Differences

Feature	METAR Current conditions	TAF Forecast
Purpose	Reports current weather conditions at an airport	Forecasts expected weather conditions at an airport
Current Observations vs. Forecasts	Current observations	Weather forecasts
Update Frequency	Issued routinely every hour, with SPECI reports issued as needed for significant weather changes	Issued several times daily and amended when necessary
Best Use During Preflight Planning	Verify current conditions at departure, destination, and alternate airports	Evaluate how the weather is expected to change during the planned flight and determine whether conditions will improve or deteriorate

Experienced pilots rarely rely on a single report. These reports are commonly used together to compare current conditions with forecasts and look for signs that weather may worsen during the planned flight.

Other Essential Weather Products

METARs and TAFs are the foundation of aviation weather planning, but pilots also use several additional weather products to gain a more complete understanding of current and forecast conditions:

PIREPs (Pilot Reports) – Real-time weather observations reported by pilots
SIGMETs and AIRMETs – Advisories that alert pilots to hazardous weather
Winds Aloft Forecasts – Forecast wind direction, wind speed, and temperature at various altitudes

No single weather product tells the whole story. Comparing observations, forecasts, hazard advisories, and pilot reports enables student pilots to develop a more complete weather picture and make safer decisions.

Using Weather Reports for Preflight Weather Planning and Go/No-Go Decisions

Effective weather planning for flight safety requires pilots to check multiple reports. Before takeoff, pilots should:

Obtain a weather briefing
Review METARs, TAFs, hazard advisories, winds aloft, radar, and forecast trends

Student pilots must understand VFR weather minimums for their operating airspace while recognizing that legal limits are not always safe limits. Establishing personal minimums, asking whether conditions are suitable, and considering alternatives help support sound go-no-go decisions. Sometimes the safest choice is to postpone a flight.

Develop Aviation Knowledge and Flight Skills at Phoenix East Aviation

Understanding aviation weather is key to becoming a safe and confident pilot. Learning to interpret METARs, TAFs, and other weather products helps student pilots make informed decisions before every flight.

At Phoenix East Aviation, students gain the knowledge, experience, and professional guidance needed to develop strong aviation skills. Begin your flight training journey and take the next step toward becoming a safety-focused pilot with PEA’s Private Pilot License program.