Weather Obs/Service Outlets
Compilation of elements of the current weather at individual ground stations across the United State
What are metars?
This station you can call to receive a weather briefing
What is 1-800-WX BRIEF
Valid for a 24 or 30-hour time period and is updated four times a day, report established for 5 statute mile radius round an airport
What is a TAF?
The forecasts are made twice a day based on the radiosonde upper air observations taken at 0000Z and 1200
What is winds aloft?
This chart depicts an analysis of the current surface weather
Weather briefing for planned departure more than 6 hours away
What is outlook briefing?
This weather is reported by a pilot mid flight
What is a pirep?
Beggining of TAF reads 091212
What is Forecast valid from the ninth at 1200Z till the tenth at 1200Z
Winds aloft reads at 6,000 ft 2714
What is winds 270 degrees at 14 knots
The weather depiction chart provides a graphic display of IFR,VFR, and marginal VFR (MVFR)weather
What is weather depiction chart?
Automated weather sources
What are AWSOS and ASOS?
This type of briefing can be obtained within 6 hours of departure
Standard Briefing
P6SM is written in the TAF
What is visibility greater then 6 statute miles?
At 18,000 ft the winds aloft show 2531-15
What is winds at 250 degrees, 31kts, -15 degrees celcius
This chart reports significant weather from the surface to FL 240
What is low level significant weather chart?
This information includes the type of report, station identifier, date and time, modifier (as required), wind, visibility, runway visual range (RVR), weather phenomena, sky condition, temperature/dew point, altimeter reading, and applicable remark
What are Surface observations?
You see this on a meter
KMIA 220853Z 13003KT
What is observed 0853 UTC 22nd day of the month, winds 130 degrees SE at three knots?
Inflight weather advisories, which are provided to en route aircraft, are forecasts that detail potentially hazardous weather. There are a few forms
What are Airmet, Sigmet, and Convective Sigmets?
What is 230 degreesat 119 knots, -60 degrees celcius?
Low altitude Significant Weather charts are reported a certain amount of times a day
What is four times a day?
There are four types of weather observations
What is surface, air, radar, and satellite?
SCT060 23/16 A3010
What is scattered at 6000 temperature 23 Celsius, dewpoint 16 Celsius, altimeter 30.10?
These issued for severe thunderstorms with surface winds greater than 50 knots, hail at the surface greater than or equal to ¾ inch in diameter, or tornadoes
What are convective sigmets?
When wind speeds are forecasted 200 knots or greater the wind group is coded
What is 99kts?
A line of constant pressure, they most commonly connect lines of equal pressure in the units of millibars
What are isobars?