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August 25 2011 Notices to Airmen - FAA

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Contractions <strong>Notices</strong> <strong>to</strong> <strong>Airmen</strong><br />

Contraction Decode<br />

UNAVBL Unavailable<br />

UNLGTD Unlighted<br />

UNMKD Unmarked<br />

UNMNT Unmoni<strong>to</strong>red<br />

UNREL Unreliable<br />

UNUSBL Unusable<br />

V<br />

VASI Visual Approach Slope Indica<strong>to</strong>r<br />

VDP Visual Descent Point<br />

VGSI Visual Glide Slope Indica<strong>to</strong>r<br />

VIA By Way Of<br />

VICE Instead/Versus<br />

VIS Visibility<br />

VMC Visual Meteorological Conditions<br />

VOL Volume<br />

Contraction Decode<br />

A<br />

A Absolute (temperature)<br />

A Alaskan Standard Time (time groups only)<br />

A Arctic (air mass)<br />

A01 Au<strong>to</strong>mated Observation without Precipitation<br />

Discrimina<strong>to</strong>r (rain/snow) (METAR)<br />

A02 Au<strong>to</strong>mated Observation with Precipitation<br />

Discrimina<strong>to</strong>r (rain/snow) (METAR)<br />

AAWF Auxiliary Aviation Weather Facility<br />

AC Al<strong>to</strong>cumulus<br />

ACC Al<strong>to</strong>cumulus Castellanus<br />

ACSL Standing Lenticular Al<strong>to</strong>cumulus<br />

ACYC Anticyclonic<br />

ADRNDCK Adirondack<br />

ADV Advise<br />

ADVCTN Advection<br />

ADVY Advisory<br />

AFC Area Forecast Center<br />

AFDK After Dark<br />

ALF Aloft<br />

ALGHNY Allegheny<br />

ALQDS All Quadrants<br />

ALSEC All Sec<strong>to</strong>rs<br />

ALTA Alberta<br />

ALUTN Aleutian<br />

ALWF Actual Wind Fac<strong>to</strong>r<br />

AM Ante Meridiem<br />

AMD Amended Forecast (TAF)<br />

AMPLTD Amplitude<br />

AMS Air Mass<br />

AMS American Meteorological Society<br />

ANLYS Analysis<br />

APLCN Appalachian<br />

AS Al<strong>to</strong>stratus<br />

ASOS Au<strong>to</strong>mated Surface Observing System<br />

ATLC Atlantic<br />

AURBO Aurora Borealis<br />

AWP Aviation Weather Processors<br />

xiv<br />

WEATHER CONTRACTIONS<br />

Contraction Decode<br />

VOR VHF Omni−Directional Radio Range<br />

VORTAC VOR and TACAN (colocated)<br />

W<br />

W West<br />

WB Westbound<br />

WED Wednesday<br />

WEF With effect from or effective from<br />

WI Within<br />

WIE With immediate effect or effective immediately<br />

WKDAYS Monday through Friday<br />

WKEND Saturday and Sunday<br />

WND Wind<br />

WPT Waypoint<br />

WSR Wet Snow on Runway(s)<br />

WTR Water on Runway(s)<br />

WX Weather<br />

Contraction Decode<br />

B<br />

B Beginning of Precipitation (time in minutes)<br />

(weather reports only)<br />

B Bering Standard Time (time groups only)<br />

BACLIN Baroclinic or Baroclinic Prognosis<br />

BATROP Barotropic or Barotropic Prognosis<br />

BC Patches (METAR)<br />

BC British Columbia<br />

BCFG Patchy Fog (METAR)<br />

BCH Beach<br />

BCKG Backing<br />

BDA Bermuda<br />

BECMG Becoming (expected between 2 digit beginning<br />

hour and 2 digit ending hour) (TAF)<br />

BFDK Before Dark<br />

BINOVC Breaks in Overcast<br />

BKN Broken<br />

BL Between Layers<br />

BL Blowing (METAR)<br />

BLD Build<br />

BLDUP Buildup<br />

BLKHLS Black Hills<br />

BLKT Blanket<br />

BLZD Blizzard<br />

BMS Basic Meteorological Services<br />

BNDRY Boundary<br />

BOVC Base of Overcast<br />

BR Mist (METAR)<br />

BRF Brief<br />

BRKHIC Breaks in Higher Overcast<br />

BRKSHR Berkshire<br />

BRM Barometer<br />

BTWN Between<br />

C<br />

C Central Standard Time (time groups only)<br />

C Continental (air mass)<br />

CAN Canada

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