Metar / TAF's

[barnyard]

hey All-

Anybody know a good site that gives a full list of all the codes for these things?? I have been looking but not in the right places.

Thanks!

 

[avbug]

-1-30. KEY TO AERODROME FORECAST (TAF) AND AVIATION ROUTINE WEATHER REPORT (METAR)
{New-2002-4 Figure 7-16 Redesignated as 7-1-23 February 21, 2002}

FIG 7-1-23
KEY to AERODROME FORECAST (TAF) and
AVIATION ROUTINE WEATHER REPORT (METAR) (FRONT)
TAF KPIT 091730Z 091818 15005KT 5SM HZ FEW020 WS010/31022KT
FM1930 30015G25KT 3SM SHRA OVC015 TEMPO 2022 1/2SM +TSRA OVC008CB
FM0100 27008KT 5SM SHRA BKN020 OVC040 PROB40 0407 1SM -RA BR
FM1015 18005KT 6SM -SHRA OVC020 BECMG 1315 P6SM NSW SKC

METAR KPIT 091955Z COR 22015G25KT 3/4SM R28L/2600FT TSRA OVC010CB 18/16 A2992 RMK SLP045 T01820159
Forecast Explanation Report
TAF Message type: TAF- routine or TAF AMD-amended forecast, METAR-hourly, SPECI-special or TESTM-non-commissioned ASOS report. METAR
KPIT ICAO location indicator KPIT
091730Z Issuance time: ALL times in UTC "Z", 2-digit date, 4-digit time 091955Z
091818 Valid period: 2-digit date, 2-digit beginning, 2-digit ending times

In U.S. METAR: CORrected of; or AUTOmated ob for automated report with no human intervention; omitted when observer logs on.


COR
15005KT Wind: 3 digit true-north direction, nearest 10 degrees (or VaRiaBle); next 2-3 digits for speed and unit, KT (KMH or MPS); as needed, Gust and maximum speed; 00000KT for calm; for METAR, if direction varies 60 degrees or more, Variability appended, e.g. 180V260. 22015G25KT
5SM Prevailing visibility: in U.S., Statute Miles & fractions; above 6 miles in TAF Plus6SM. (Or, 4-digit minimum visibility in meters and as required, lowest value with direction).

Runway Visual Range: R; 2-digit runway designator Left, Center, or Right as needed; "/"; Minus or Plus in U.S., 4-digit value, FeeT in U.S., (usually meters elsewhere); 4-digit value Variability 4-digit value (and tendency Down, Up or No change) 3/4 SM




R28L/2600FT
HZ Significant present, forecast and recent weather: see table (on back) TSRA
FEW020 Cloud amount, height and type: Sky Clear 0/8, FEW > 0/8-2/8, SCaTtered 3/8-4/8, BroKeN 5/8-7/8, OVerCast 8/8; 3-digit height in hundreds of ft; Towering CUmulus or CumulonimBus in METAR; in TAF, only CB. Vertical Visibility for obscured sky and height "VV004". More than 1 layer may be reported or forecast. In automated METAR reports only, CLeaR for "clear below 12,000 feet"

Temperature, degrees Celsius; first 2 digits, temperature "/" last 2 digits, dew-point temperature; Minus for below zero, e.g., M06

Altimeter setting: indicator and 4 digits; in U.S., A-inches and hundredths; (Q-hectoPascals, e.g., Q1013.) OVC010CB








18/16



A2992
WS010/ 31022KT In U.S. TAF, non-convective low-level (<= 2,000 ft) Wind Shear; 3-digit height (hundreds of ft); "/"; 3-digit wind direction and 2-3 digit wind speed above the indicated height, and unit, KT.

In METAR, ReMarK indicator & remarks. For example: Sea-Level Pressure in hectoPascals & tenths, as shown: 1004.5 hPa; Temp/dew-point in tenths °C, as shown: temp. 18.2°C, dew-point 15.9°C.




RMK
SLP045 T01820159
FM1930 FroM and 2-digit hour and 2-digit minute beginning time: indicates significant change. Each FM starts on new line, indented 5 spaces.
TEMPO 2022 TEMPOrary: changes expected for < 1 hour and in total, < half of 2-digit hour beginning and 2-digit hour ending time period.
PROB40 0407 PROBability and 2-digit percent (30 or 40): probable condition during 2-digit hour beginning and 2-digit hour ending time period.
BECMG 1315 BECoMinG: change expected during 2-digit hour beginning and 2-digit hour ending time period.


Table of Significant Present, Forecast and Recent Weather - Grouped in categories and used in the order listed below; or as needed in TAF, No Significant Weather.
QUALIFIER
Intensity or Proximity
'-' Light "no sign" Moderate '+'
Heavy
VC Vicinity: but not at aerodrome; in U.S. METAR, between 5 and 10 SM of the point(s) of observation; in U.S. TAF, 5 to 10 SM from center of runway complex (elsewhere within 8000 m)
Descriptor
MI Shallow BC Patches PR Partial TS Thunderstorm
BL Blowing SH Showers DR Drifting FZ Freezing
WEATHER PHENOMENA
Precipitation
DZ Drizzle RA Rain SN Snow SG Snow Grains
IC Ice crystals PL Ice Pellets GR Hail GS Small hail/snow pellets
UP Unknown precipitation in automated observations
Obscuration
BR Mist (>=5/8SM) FG Fog (<5/8SM) FU Smoke VA Volcanic Ash
SA Sand HZ Haze PY Spray DU Widespread Dust
Other
SQ Squall SS Sandstorm DS Duststorm PO Well developed dust/sand whirls
FC Funnel cloud +FC tornado/waterspout
- Explanations in parentheses "( )" indicate different worldwide practices.
- Ceiling is not specified; defined as the lowest broken or overcast layer, or the vertical visibility.
- NWS TAFs exclude turbulence, icing & temperature forecasts; NWS METARs exclude trend forecasts
January 1999 Department Of Transportation
Aviation Weather Directorate FEDERAL AVIATION ADMINISTRATION

 

[TZRav8r]

If your an AOPA Member:

http://www.aopa.org/members/wx/metar.html

 

[wmudriver]

METAR/TAF decoders

I found most of the obscure stuff in the AIM in the Meteorology section...For the really obscure stuff, I called flight service and asked them.

 

[TZRav8r]

From the FAA website:
AC 00-45E Aviation Weather Services

http://www.airweb.faa.gov/Regulator...702EF0BFE021AB3986256BB2005C1458?OpenDocument

I believe you want section 2

http://www.airweb.faa.gov/Regulator...cular.nsf/0/702ef0bfe021ab3986256bb2005c1458/$FILE/sec1-5.pdf

 

[boeing76]

USE THIS WEBSITE. iT HAS EVERY ABBREVIATION POSSIBLE.

http://www2.faa.gov/ATPUBS/CNT/2-1.HTM