knAlternate abbreviation for knot. In meteorology,
the more frequently used abbreviation is "kt", but
this should not be confused with the uppercase
"KT" meaning kiloton.
LAPSE RATEThe decrease of an atmospheric
variable with height: the variable being
temperature unless otherwise specified.
LCDLiquid crystal diode. A gray or black display of
numbers or shapes commonly used in electronics.
LITTORAL The coastal zone including the beach to
the coastal waters.
LLWSLow-level wind shear.
electromagnetic refractivity calculations-a
modification of N-Units.
MEGATON(MT) A multiplication factor for
nuclear weapon yields. Each megaton is equal to
the explosive force of 1 million tons of
trinitrotoluene (TNT) explosive.
METU.S. Navy mobile environmental team.
METEOROLOGYThe study of phenomenon of the
METVANS USMC mobile meteorological vans.
Highly transportable, completely equipped
meteorological facilities constructed as complete
modules in cargo containers. Modules may be used
independently or connected to form complete, full-
spectrum, meteorological support facilities in a
forward deployed environment.
MHzMegahertz, 1 million hertz.
MILSAn angular measurement scale in which 800
mils equals 45 degrees of arc; a circle is 6400 mils.
MMFU.S. Marine Corps meteorological mobile
facility-weather personnel who operate USMC
MRSMini rawinsonde system.
MSLMean sea level, a suffix used after altitude
MVFRMarginal visual flight rules.
NATONorth Atlantic Treaty Organization.
NAVAIDAn acronym for navigation aid, usually
referring to an aircraft navigation aid such as an
NDB, VOR, TACAN, VORTAC, or DME.
Meteorology and Oceanography Command
headquartered at the Stennis Space Center,
NAVSARA GFMPL program used to help plan
rescue searches at sea.
NBCAn acronym for nuclear, biological, or
Administration, a division of the U.S. Department
NOMOGRAMAny graphic product used to find
solutions to complex calculations without having to
perform the calculations.
NOTAMNotice to airmen.
NTDSNavy tactical data system.
NUCAn abbreviation for nuclear; used within some
NWSNational weather service, a division of NOAA.
OAAbbreviation for shipboard aviation operations
division, the shipboard division for which most
Aerographers Mates work.
OODOfficer of the deck
PIBALAn acronym for pilot balloon, a small balloon
tracked with a theodolite to determine wind
direction and speed.
PIREPAbbreviation for pilot report.
QFEA signal used to indicate the value provided; the