Honeywell KMD 250 Pilot's Manual page 252

TRMTS Terminates
TRNSP Transport
TRNSPG Transporting
TROF Trough
TROFS Troughs
TROP Tropopause
TRPCD Tropical continental
air mass
TRPCL Tropical
TRRN Terrain
TRSN Transition
TRW Thunderstorm
TRW+ Thunderstorm with
heavy rain shower
TS Thunderstorm
(METAR)
TS + Thunderstorm with
heavy snow
TSFR Transfer
TSFRD Transferred
TSFRG Transferring
TSFRS Transfers
TSHWR Thundershower
TSNO Thunderstorm infor-
mation not available
TSNT Transient
TSQLS Thundersquall
TSTM Thunderstorm
TSW Thunderstorm with
snow showers
TSW+ Thunderstorm with
heavy snow showers
TURBC Turbulence
TURBT Turbulent
TWD Toward
TWDS Towards
TWI Twilight
TWR Tower
TWRG Towering
TX Texas
UA Pilot weather reports
UDDF Up- and downdrafts
UN Unable
Rev 2 Apr/2004
Common Weather Abbreviations
UNAVBL
UNEC
UNKN
UNL
UNRELBL
UNRSTD
UNSATFY
UNSBL
UNSTBL
UNSTDY
UNSTL
UNSTLD
UNUSBL
UP
UPDFTS
UPR
UPSLP
UPSTRM
URG
USBL
UT
UTC
UUA
UVV
UWNDS
V
VA
VAAC
VAAS
VAD
VAL
VARN
VC
B-19
Unavailable
Unnecessary
Unknown
Unlimited
Unreliable
Unrestricted
Unsatisfactory
Unseasonable
Unstable
Unsteady
Unsettle
Unsettled
Unusable
Unknown precipita-
tion (used only by
automated sites
incapable of discrimi-
nation)
Updrafts
Upper
Upslope
Upstream
Urgent
Usable
Utah
Universal Time
Coordinate
Urgent PIREP
Weather Reports
Upward vertical
velocity
Upper winds
Varies
Virginia or Volcanic
Ash
Volcanic Ash
Advisory Center
Volcanic Ash
Advisory Statement
Velocity azimuth
display
Valley
Variation
Vicinity
KMD 250 Pilot's Guide