RSS Feeds
A
AAA - (or AAB, AAC ... etc., in sequence)
Amended meteorological message (message type designator)
AAL - Above aerodrome level
ABNDT - Abundant
ABNML - Abnormal
ABT - About
ABV - Above
Ac or AC - Altocumulus
AC - Anticipated Convection Outlook.
ACC - Area Control Center or area control
ACCAS - Altocumulus Castellanus
ACCID - Notification of an aircraft accident
ACCUM - Accumulate
ACFT - Aircraft
ACK - Acknowledge
ACLT - Accelerate
ACLTD - Accelerated
ACLTG - Accelerating
ACLTS - Accelerates
ACPT - Accept or accepted
ACPY - Accompany
ACRS - Across
ACSL - Altocumulus Standing Lenticular
ACT - Active or activated or activity
ACTV - Active
ACTVTY - Activity
ACYC - Anticyclone
AD - aerodrome
ADA - advisory area
ADDN - Addition or additional
ADJ - Adjacent
ADL - Additional
ADM - Administrative Messages
ADQT - Adequate
ADQTLY - Adequately
ADR - Advisory route
ADRNDCK - Adirondack
ADVCT - Advect
ADVCTD - Advected
ADVCTG - Advecting
ADVCTN - Advection
ADVCTS - Advects
ADVIS - Headwater Advisory Program
ADVN - Advance
ADVNG - Advancing
ADVS - Advisory service
ADVY - Advisory
ADVYS - Advisories
ADZ - Advise
AFCT - Affect
AFCTD - Affected
AFCTG - Affecting
AFD - Area Forecast Discussion
AFDK - After dark
AFOS - Automation of Field Operations and Services.
AFT - After ... (time or place)
AFTN - Afternoon
AGC - Automatic Gain Control
AGL - Above ground level
AGN - Again
AGRD - Agreed
AGRMT - Agreement
AGRS - Agrees
AHD - Ahead
AHOS-S - Automatic Hydrologic Observing System - Satellite
AHOS - Automatic Hydrologic Observing System
AHOS-T - Automatic Hydrologic Observing System - Telephone
AIRMET - AIRman's METeorological Information
AK - Alaska
AL - Alabama
ALERT - Automated Local Evaluation in Real Time
ALF - Aloft
ALG - Along
ALGHNY - Allegheny
ALQDS - All quadrants
ALSTG - Altimeter setting
ALT - Altitude
ALTA - Alberta
ALTHO - Although
ALTM - Altimeter
ALUTN - Aleutian
AMD - Amend or amended (used to indicate amended meteorological message;
message type designator)
AMDD - Amended
AMDG - Amending
AMDT - Amendment
AMP - Amplify
AMPG - Amplifying
AMPLTD - Amplitude
AMS - Air mass
AMSL - Above mean sea level
AMT - Amount
ANLYS - Analysis
ANS - Answer
AOA - At or above
AOB - At or Below
AP - Anomalous Propagation or Airport
APCH - Approach
APCHG - Approaching
APCHS - Approaches
API - Antecedent Precipitation Index
APLCN - Appalachian
APLCNS - Appalachians
APPR - Appear
APPRG - Appearing
APPRS - Appears
APR - April
APRNT - Apparent
APRNTLY - Apparently
APRX - Approximate or approximately
APRXLY - Approximately
APSG - After passing
AQI - Air Quality Statement
AR - Arkansas
Arcus - Arc Cloud
ARFOR - Area forecast (in aeronautical meteorological code)
ARND - Around
ARPT - Airport
ARR - Arrive or arrival
ART - Automatic Radio Theodolite Master Control Unit
As or AS - Altostratus
ASAP - AHOS SHEF Automatic Processing System or as soon as
possible
ASAPTRAN - The software component of ASAP.
ASC - Ascent to or ascending to
ASH - Assistant Service Hydrologist
ASL - Above Sea Level
ASMD - As amended
ASOS - Automated Surface Observing System.
ASSOCD - Associated
ASSOCN - Association
AT... - At (followed by time at which weather change is forecast to occur)
ATAD - Automated Telephone Answering Device.
ATDTDCS - Automated Tone Dial Telephone Data Collection System
ATLC - Atlantic
ATMU - Air Transportable Mobile Unit
ATP... - At... (time or place)
ATTM - At this time
ATTN - Attention
AUG - August
AVBL - Available or availability
AVG - Average
AVN - AViatioN model
AWC - Aviation Weather Center
AWHPS - Area Wide Hydrologic Prediction System
AWIPS - Advanced Weather Interactive Processing System.
AWOS - Automated Weather Observation System.
AWT - Awaiting
AZ - Arizona
AZM - Azimuth
