Decode Aviation Weather In Plain English
Instantly translate METAR, TAF, and SIGMET reports into clear, understandable weather information. No more struggling with cryptic codes and abbreviations.
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METARRaw METAR (Confusing)
KJFK 121551Z 31008KT 10SM FEW250 M04/M17 A3034 RMK AO2 SLP279 T10391167 Difficult to understand without training
Decoded (Clear)
Airport: JFK International, New York
Time: 12th at 15:51 UTC
Wind: From 310° at 8 knots
Visibility: 10 miles (excellent)
Clouds: Few clouds at 25,000 feet
Temperature: -4°C (25°F)
Dewpoint: -17°C (1°F)
Pressure: 30.34 inches
✓ VFR Conditions
Complete Weather Decoding Suite
METAR Translation
Current weather observations decoded into plain language. Understand visibility, clouds, wind, temperature, and special conditions instantly.
TAF Forecasts
Terminal area forecasts translated with time periods clearly marked. See how weather will change throughout your flight window.
Flight Categories
Automatic VFR, MVFR, IFR, or LIFR categorization based on ceiling and visibility. Color-coded for quick decision making.
Wind Analysis
Crosswind and headwind components calculated for any runway. Gust factors highlighted. Wind shear alerts when present.
Cloud Layers
Visual representation of cloud layers with bases and tops. Clear identification of ceiling height and cloud types.
Remarks Decoded
Complex remarks section translated including pressure trends, precipitation amounts, and automated station notes.
Weather Phenomena
Complete decoding of phenomena like rain, mist, thunderstorms, hail and special conditions. Detailed explanations of intensity and type.
Safety Alerts
Automatic highlighting of dangerous conditions like icing, severe turbulence, low visibility or thunderstorms. Visual alerts for quick decisions.
Weather History
Access historical METARs to analyze patterns and trends. Compare current conditions with previous hours for better planning.
Understanding Aviation Weather Reports
Aviation weather reports use standardized formats that can be overwhelming for new pilots and challenging even for experienced aviators. METAR and TAF reports pack critical safety information into abbreviated codes that require memorization and practice to decode quickly.
METAR / TAF / SIGMET
Weather is a primary factor in aviation accidents, particularly in general aviation. Quick and accurate interpretation of weather reports is essential for:
Why Weather Decoding Matters
Weather is a primary factor in aviation accidents, particularly in general aviation. Quick and accurate interpretation of weather reports is essential for:
- Making safe go/no-go decisions before departure
- Understanding weather trends during flight planning
- Identifying hazardous conditions like icing, turbulence, or low visibility
- Determining alternate airport suitability
- Calculating fuel requirements based on wind conditions
- Assessing runway conditions and crosswind components
METAR Components Explained
Our decoder breaks down each element of a METAR report:
- Station Identifier: Full airport name and location
- Observation Time: Converted to local time and UTC
- Wind: Direction, speed, gusts, and variability explained
- Visibility: Distance in miles or meters with conditions
- Weather Phenomena: Rain, snow, mist, and other conditions in clear terms
- Sky Condition: Cloud layers, types, and ceiling height
- Temperature/Dewpoint: In Celsius and Fahrenheit with spread analysis
- Altimeter: Pressure setting in inches Hg or hPa
- Remarks: Additional information fully translated
TAF Forecast Intelligence
TAF reports provide crucial forecast information for flight planning. Our decoder translates complex forecast groups into timeline views showing:
- Valid period with clear start and end times
- Expected changes (BECMG, TEMPO, FM groups) explained
- Probability indicators for conditional weather
- Wind shift timing and intensity changes
- Forecast confidence levels and amendments
Advanced Weather Features
Beyond basic decoding, Pilot Kit provides advanced analysis tools:
- Trend Analysis: Compare multiple reports to see improving or deteriorating conditions
- Flight Rules: Automatic VFR/IFR determination with regulatory references
- Crosswind Calculator: Runway-specific wind components
- Density Altitude: Performance impact calculations
- Icing Probability: Temperature/dewpoint spread analysis for icing conditions
- Convective Outlook: Thunderstorm likelihood based on atmospheric conditions
How to Decode Weather Reports
Enter Airport Code
Type the ICAO code (like KJFK) or IATA code (JFK) for any airport worldwide. The app also supports searching by airport name or city. Recent searches are saved for quick access.
Fetch Weather Data
The app retrieves the latest METAR and TAF reports from official sources. Data is updated as soon as new observations are published, typically every hour for METARs and every 6 hours for TAFs.
Read Plain English Translation
View the decoded report with each element explained in clear language. Technical terms are defined, abbreviations expanded, and values converted to familiar units. Toggle between raw and decoded views.
Analyze Weather Trends
Review historical METARs to see how conditions are changing. The trend view shows improving, stable, or deteriorating weather patterns. Forecast accuracy is tracked by comparing TAFs to actual conditions.
Check Flight Categories
See color-coded flight rules categories: VFR (green), MVFR (blue), IFR (red), or LIFR (purple). Categories are determined by ceiling and visibility minimums according to FAA standards.
Make Informed Decisions
Use the complete weather picture to make safe go/no-go decisions. Consider current conditions, forecast trends, and your personal minimums. Save reports for flight planning documentation.
Enter Airport Code
Type the ICAO code (like KJFK) or IATA code (JFK) for any airport worldwide. The app also supports searching by airport name or city. Recent searches are saved for quick access.
Fetch Weather Data
The app retrieves the latest METAR and TAF reports from official sources. Data is updated as soon as new observations are published, typically every hour for METARs and every 6 hours for TAFs.
Read Plain English Translation
View the decoded report with each element explained in clear language. Technical terms are defined, abbreviations expanded, and values converted to familiar units. Toggle between raw and decoded views.
Analyze Weather Trends
Review historical METARs to see how conditions are changing. The trend view shows improving, stable, or deteriorating weather patterns. Forecast accuracy is tracked by comparing TAFs to actual conditions.
Check Flight Categories
See color-coded flight rules categories: VFR (green), MVFR (blue), IFR (red), or LIFR (purple). Categories are determined by ceiling and visibility minimums according to FAA standards.
Make Informed Decisions
Use the complete weather picture to make safe go/no-go decisions. Consider current conditions, forecast trends, and your personal minimums. Save reports for flight planning documentation.
Decoding Examples
METAR - JFK International New York (KJFK)
MVFRRaw Code:
KJFK 121500Z 18015G25KT 4SM -TSRA SCT010 BKN025 OVC050 21/19 A2998 RMK AO2 PRESRR Decoded:
Airport John F. Kennedy International, New York (KJFK)
Date/Time 12th at 15:00 UTC (11:00 AM local)
Wind From 180° (South) at 15 knots, gusting to 25 knots
Visibility 4 statute miles
Present Weather Light thunderstorm with rain
Clouds
- - Scattered at 1,000 feet
- - Broken at 2,500 feet (ceiling)
- - Overcast at 5,000 feet
Temperature 21°C (70°F)
Dewpoint 19°C (66°F) - spread 2°C, fog risk
Pressure 29.98 inches Hg
Remarks Automated station, pressure rising rapidly
⚠ MVFR Conditions - Caution advised
TAF - Los Angeles International (KLAX)
VFRRaw Code:
TAF KLAX 121700Z 1218/1318 27010KT P6SM SKC TX28/1322Z TN17/1314Z
TEMPO 1218/1222 4SM HZ
BECMG 1300/1302 15008KT Decoded:
Base Forecast (12/18:00Z to 13/18:00Z):
- - Wind: 270° at 10 knots
- - Visibility: Greater than 6 miles
- - Sky: Clear
- - Max Temperature: 28°C (82°F) at 22:00Z
- - Min Temperature: 17°C (63°F) at 14:00Z
Temporary (12/18:00Z to 12/22:00Z):
- - Visibility reduced to 4 miles
- - Haze present
Becoming (13/00:00Z to 13/02:00Z):
- - Wind shifting to 150° at 8 knots
✓ Predominantly VFR forecast with temporary MVFR period
METAR - O'Hare International Chicago (KORD)
VFRRaw Code:
KORD 121300Z 12008KT CAVOK 26/21 A3012 NOSIG Decoded:
Airport O'Hare International, Chicago (KORD)
Date/Time 12th at 13:00 UTC (8:00 AM local)
Wind From 120° (Southeast) at 8 knots
Visibility CAVOK - Ceiling and Visibility OK
(Means: visibility 10km or more, no clouds below 5,000 feet, no cumulonimbus clouds, and no significant weather)
Temperature 26°C (79°F)
Dewpoint 21°C (70°F) - spread 5°C, good conditions
Pressure 30.12 inches Hg
Trend NOSIG - No significant changes expected
✓ Excellent VFR Conditions
Common Weather Codes Decoded
Weather Phenomena
| Code | Meaning |
|---|---|
+TSRA | Heavy thunderstorm with rain |
-RA | Light rain |
SHRA | Rain showers |
BR | Mist (vis. 1-5km) |
FG | Fog (vis. < 1km) |
SN | Snow |
DZ | Drizzle |
GR | Hail |
Cloud Coverage
| Code | Coverage |
|---|---|
SKC/CLR | Clear sky (0 oktas) |
FEW | Few clouds (1-2 oktas) |
SCT | Scattered (3-4 oktas) |
BKN | Broken (5-7 oktas) |
OVC | Overcast (8 oktas) |
VV | Vertical visibility (obscured) |
CAVOK | Ceiling and visibility OK |
NSC | No significant clouds |
Intensity & Descriptors
| Code | Meaning |
|---|---|
- | Light |
(none) | Moderate |
+ | Heavy |
VC | In the vicinity |
MI | Shallow |
BC | Patches |
DR | Low drifting |
BL | Blowing |
Special Terms
| Code | Meaning |
|---|---|
NOSIG | No significant change |
NSW | No significant weather |
TEMPO | Temporary |
BECMG | Becoming |
FM | From (permanent change) |
PROB | Probability |
RE | Recent |
WS | Wind shear |
Frequently Asked Questions
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