Acronyms Flashcards
SIGMET-Conterminous U.S.
ATIS
Ash (Volcanic)
Turbulence (severe or extreme) (Or CAT not associated with thunderstorm)
Icing (severe) (not associated with thunderstorms)
Sandstorm/duststorm (lowering visibility to below 3SM)
valid for 4 hr except for hurricanes which are valid for 6 hr
SIGMET (Outside conterminous U.S.)
TITSAD
Thunderstorm
Icing (severe)
Tropical Cyclone
Sandstorm
Ash
Duststorm
SIGMET Thunderstorms (Outside conterminous U.S.)
OWISE
Obscured
Widespread
Isolated severe
Squall line
Embedded
Convective SIGMET
SEAL
Severe TS (Tornado, hail 3/4’ diameter or greater, wind 50 kts or greater)
Embedded TS
Area of TS (40% of an area covering 3000 sq miles) (producing precipitation greater than or equal to heavy
Line of TS (40% of its length 60 miles or longer)
Valid up to 2 hr.
Phenomena in a SIGMET not needing to cover an area at least 3000 square miles
SOE
Squall line
Obscured thunderstorm
Embedded thunderstorm
AIRMETS
TWINM
Turbulence (moderate)
Wind sustained (>or equal to 30 kt surface)
Icing (moderate)
Non-convective LLWS (below 2000’ AGL)
Mountain obscuration/IFR
Urgent PIREP
STSHALO
Severe/extreme turbulence including CAT
Tornadoes, funnel clouds, waterspouts
Severe icing
Hail
Ash
LLWS (airspeed fluctuations 10 kts or more or if no specific airspeed fluctuations are reported it will be UUA)
Other phenomena condsidered hazardous by the briefer
Flight Information Service Data Link (FISDL or FIS-B)
SCAMTAP
SIGMET
Convective SIGMET
AIRMET
METAR (routine and SPECI)
TAF
AWW (severe weather forecast alerts)
Pirep (routine and urgent)
AWOS
TWADDVC
Temperature
Wind
Altimeter
Dew point
Density Alt.
Visibility (AWOS 2)
Cloud/ceiling (AWOS 3)
ASOS
TWADDVC+
TPRFR
Precip Identification
Rain accumulation
Freezing rain occurrence
Remarks
HIWAS
PACSAC
Pireps (urgent)
AWWs (aviation watch notification messages)
CWAs (center weather advisories)
SIGMETs
AIRMETs
Convective SIGMETs
PIREP solicitation
TITSVVC
Thunderstorms
Icing (light or greater)
Turbulence (moderate or greater)
Shear (wind shear)
Visibility (5sm or less)
Volcanic ash clouds (forecast or reported)
Ceiling (5000’ or less)
Basic VFR Radar Services
SALTS
Sequencing (locations where procedures are established)
Alerts (safety)
Limited radar vectoring (workload permitting)
Traffic advisories
Separation (VFR-IFR)
TRSA VFR Radar Services
SALT+SS
Separation (IFR-VFR & participating
VFR-VFR)
Sequencing (participating VFR)
Class C VFR Radar Services
SALT+SS
Separation (IFR-VFR)
Sequencing (VFR to primary)