METAR and TAF Weather Reports Weather Identifiers: B - Began FC, +FC Funnel HZ Haze SA Sand BC Patches Cloud, IC Ice Crystals SG Snow Grains BL Blowing Well-Developed MI Shallow SH Showers BR Mist Funnel Cloud PE Ice Pellets SN Snow DR Low Drifting Tornado or PO Well-Developed SQ Squalls Moderate DS Dust storm Waterspout Dust/Sand Whirls SS Sandstorm DU Dust FG Fog PR Partial TS Thunderstorm DZ Drizzle FU Smoke PY Spray UP Unknown E - Ended FZ Freezing RA Rain Precipitation GR Hail (>5mm) VA Volcanic Ash GS Small Hail / Snow VC In the Vicinity Pellets (<5mm) Modifiers: - Light + Heavy P More than M Less than B Began E Ended Sky Conditions: BKN – Broken cloud layer 5/8ths to 7/8ths OVC – Overcast cloud layer 8/8ths coverage CB – Cumulonimbus SCT – Scattered cloud layer 3/8ths to 4/8ths CLR – Sky clear at or below 12,000AGL SKC – Sky Clear FEW – Few cloud layer 0/8ths to 2/8ths TCU – Towering Cumulus Other: A01 – Automated Observation without PROB40 – Probability of 40% precipitation discrimination R04 – Runway 4 A02 – Automated Observation with RMK – Remarks precipitation discrimination RWY – Runway A3000 – Altimeter setting 30.00” RVRNO – Runway Visual Range not available AMD – Amended forecast SFC VIS – Surface Visibility AUTO – without human editing SLP – Sea Level Pressure, add 10 to numbers BECMG – Becoming… BECMG 0002 = given becoming 00 to 02 Zulu SLPNO – Sea Level Pressure not available CAVU – Ceiling and visibility unlimited SM – Statute miles COR – Correction SPECI – Special Report DSNT – Distant weather phenomenon TEMPO – Temporarily… TEMPO 0002 = FM – From… FM0200 = from 0200 Zulu Temporarily 00 to 02 Zulu FROPA – Frontal Passage T02560179 – Temperature 25.6 dew point 17.9 LDG – Landing TWR VIS – Tower Visibility M – Minus, below zero, “less than” V – Varying NO – Not available VRB – Variable NSW – No significant weather VRB VIS – Variable Visibility P6SM – Plus 6 Statute Miles, greater than, VV – Vertical Visibility, indefinite ceiling “more than” WS – Wind shear PK WND – Peak Wind WSHFT - Wind shift PRESFR/PRESRR – Pressure Falling or Rising Rapidly Encoded Groups: Area Forecast Weather Reports A GEOREF - Geographical RLBL - Reliable AAF - Army Air Field reference REPL - Replace AAL - above aerodrome level GF - Ground fog REPLD - Replaced AATM - at all times GICG - Glaze icing REPLG - Replacing ABD – aboard GLFALSK - Gulf of Alaska REPLS - Replaces ABNDT - abundant GLFCAL - Gulf of California REQ - Request ABNML - abnormal GLFMEX - Gulf of Mexico REQS - Requests ABT - about GLFSTLAWR - Gulf of St. REQSTD - Requested ABV - above Lawrence RESP - Response AC - altocumulus GND - Ground RESTR - Restrict ACARS - Aircraft GNDFG - Ground fog RGD - Ragged communication addressing & GRAD - Gradient RGLR - Regular reporting system GRDL - Gradual RGN - Region ACCUM - accumulate GRDLY - Gradually RGNS - Regions ACFT - aircraft GRT - Great RH - Relative Humidity ACK - acknowledge GRTLY - Greatly RIOGD - Rio Grande ACL - altimeter check GRTR - Greater RLTV - Relative location GRTST - Greatest RLTVLY - Relativily ACLD - above clouds GRTLKS - Great Lakes RMN - Remain ACLT - accelerate GSTS - Gusts RMND - Remained ACPT - accept GSTY - Gusty RMNDR - Remainder ACR - air carrier GV - Ground visibility RMNG - Remaining ACRBT - acrobatic RMNS - Remains ACRS - across H RNFL - Rainfall ACSL - standing lenticular HAZ - Hazard ROT - Rotate altocumulus HCVIS - High clouds visible ROTD - Rotated ACT - active or activated or HDFRZ - Hard freeze ROTG - Rotating activity HDSVLY - Hudson Valley ROTS - Rotates ACTG - acting HDWND - Head wind RPD - Rapid ACTV - active HGT - Height RPDLY - Rapidly ACTVT - activate HI - High RPLC - Replace ACYC - anticyclonic HIER - Higher RPLCD - Replaced ADA - advisory area HIFOR - High level forecast RPLCG - Replacing ADDN - addition HLF - Half RPLCS - Replaces ADF - automatic direction HLTP - Hilltop RPRT - Report finder HLSTO - Hailstones RPRTD - Reported ADIZ - air defense HLYR - Haze layer aloft RPRTG - Reporting identification zone HND - Hundred RPRTS - Reports ADJ - adjacent HR - Hour RPT - Repeat ADQT - adequate HRS - Hours RPTG - Repeating ADRNDCK - adirondack HRZN - Horizon RPTS - Repeats ADV - advise HTG - Heating RQR - Require ADVCTN - advection HURCN - Hurricane RQRD - Required ADVN - advance HUREP - Hurricane report RQRG - Requiring ADVY - advisory HV - Have RQRS - Requires ADVZY - advisory HVY - Heavy RS - Receiver station AFB - Air Force Base HVYR - Heavier RSG - Rising AFCT - affect HVYST - Heaviest RSN - Reason AFD - Airport/Facility HWVR - However RSNG - Reasoning Directory HWY - Highway RSNS - Reasons AFDK - after dark RSTR - Restrict AFSS - Automated Flight I RSTRD - Restricted Service Station IA - Iowa RSTRG - Restricting AFT - after IC - Ice RSTRS - Restricts AFTN - afternoon ICG - Icing RTRN - Return AGL - above ground level ICGIC - Icing in clouds RTRND - Returned AHD - ahead ICGIP - Icing in RTRNG - Returning AIM - Aeronautical precipitation RTRNS - Returns Information Manual ID - Idaho RUF - Rough AIRMET - Airmen's IL - Illinois RUFLY - Roughly Meteorological Information IMDT - Immediate RVS - Revise ALF - aloft IMDTLY - Immediately RVSD - Revised ALG - along IMPL - Impulse RVSG - Revising ALGHNY - Allegheny IMPLS - Impulses RVSS - Revises ALNMT - alignment IMPT - Important RW - Rain shower ALQDS - all quadrants INCL - Include ALS - approach light system INCLD - Included S ALSEC - all sectors INCLG - Including S - South ALSF-1 - standard 2400' INCLS - Includes SA - Surface observation high-intensity approach INCR - Increase SAO - Surface observation lighting system with INCRD - Increased SAOS - Surface observations sequenced flashers (Category INCRG - Increasing SASK - Saskatchewan I configuration) INCRGLY - Increasingly SATFY - Satisfactory ALSF-2 - standard 2400' INCRS - Increases SBND - South bound high-intensity approach INDC - Indicate SBSD - Subside lighting system with INDCD - Indicated SBSDD - Subsided sequenced flashers (Category INDCG - Indicating SBSDNC - Subsidence II configuration) INDCS - Indicates SBSDS - Subsides ALSTG - altimeter setting INDEF - Indefinite SC - South Carolina ALT - altitude INFO - Information SCND - Second ALTA - Alberta INLD - Inland SCNDRY - Secondary ALTM - altimeter INSTBY - Instability SCSL - Standing lenticular ALTN - alternate INTCNTL - Intercontinental stratocumulus ALUTN - Aleutian INTL - International SCT - Scatter AM - ante meridiem INTMD - Intermediate SCTD - Scattered AMS - air mass INTMT - Intermittent SCTR - Sector AMSL - above mean sea INTMTLY - Intermittently SD - South Dakota level INTR - Interior SE - Southeast ANCPT - anticipate INTRMTRGN - SEC - Second ANLYS - analysis Intermountain region SELS - Severe Local Storms AO1 - ASOS automated INTS - Intense Unit observation without INTSFCN - Intensification SELY - Southeasterly recipitation discriminator INTSFY - Intensify SEPN - Separation (rain/snow) INTSFYD - Intensified SEQ - Sequence AO2 - ASOS automated INTSFYG - Intensifying SERN - Southeastern observation with precipitation INTSFYS - Intensifies SEWD -Southeastward discriminator (rain/snow) INTSTY - Intensity SFC - Surface AOA - at or above INTVL - Interval SFERICS - Atmospherics AOB - at or below INVRN - Inversion SG - Snow grains AOE - airport of entry IOVC - In overcast SGFNT - Significant APCH - approach INVOF - In vicinity of SGFNTLY - Significantly APL - airport lights IP - Ice pellets SHFT - Shift APLCN - Appalachian IPV - Improve SHFTD - Shifted APN - Apron IPVG - Improving SHFTG - Shifting APRNT - apparent IR - Infrared SHFTS - Shifts APROP - appropriate ISOL - Isolate SHLD - Shield APRX - approximate ISOLD - Isolated SHLW - Shallow ARB - Air Reserve Base SHRT - Short ARFOR - area forecast J SHRTLY - Shortly ARINC - Aeronautical Radio, JCTN - Junction SHRTWV - Shortwave Incorporated JTSTR - Jet stream SHRTWVS - Shortwaves ARND - around SHUD - Should ARTC - air route traffic K SHWR - Shower control KFRST - Killing frost SHWRS - Showers ARTCC - Air Route Traffic KLYR - Smoke layer aloft SIERNEV - Sierra Nevada Control Center KOCTY - Smoke over city SIG - Signature AS - altostratus KS - Kansas SIGMET - Significant ASAP - as soon as possible KT - Knots meteorological information ASDA - accelerate-stop KY - Kentucky SIMUL - Simultaneous distance available SKC - Sky clear ASL - above sea level SKED - Schedule L ASOS - automated surface SLD - Solid LA - Louisiana observing system SLGT - Slight LABRDR - Labrador ASPH - asphalt SLGTLY - Slightly LAT - Latitude ATA - actual time of arrival SLO - Slow LCL - Local ATIS - automatic terminal SLOLY - Slowly LCLY - Locally information service SLOR - Slower LCTD - Located ATLC - Atlantic SLP - Slope LCTN - Location AURBO - Aurora Borealis SLPG - Sloping LCTMP - Little change in AUTH - authorized SLT - Sleet temperature AUTO - automatic SLY - Southerly LEVEL - Level AVG - average SM - Statute mile LFM - Limited Fine Mesh AVGAS - aviation gasoline SMK - Smoke Model AWOS - automatic weather SML - Small LFTG - Lifting observing/reporting system SMLR - Smaller LGRNG - Long range AWY - airway SMRY - Summary LGT - Light AZM - azimuth SMS - Synchronus LGTR - Lighter meteorological satellite LGWV - Long wave SMTH - Smooth B LI - Lifted Index SMTHR - Smoother BACLIN - Baroclinic LIS - Lifted indices SMTHST - Smoothest BAJA - Baja California LK - Lake SMTM - Sometime BATROP - Barotropic LKS - Lakes SMWHT - Somewhat BC - British Columbia LKLY - Likely SNBNK - Snow bank BCH - Beach LLJ - Low Level Jet SND - Sand BCKG - Backing LLWS - Low Level Wind SNFLK - Snow flake BCM - Become Shear SNGL - Single