B-16
Revision 6 Feb/2009
RSNG Reasoning
RSNS Reasons
RSTR Restrict
RSTRD Restricted
RSTRG Restricting
RSTRS Restricts
RTRN Return
RTRND Returned
RTRNG Returning
RTRNS Returns
RUC
Rapid Update Cycle
RUF Rough
RUFLY Roughly
RVR
Runway Visual
Range
RVRNO
RVR system not
available
RVS Revise
RVSD Revised
RVSG Revising
RVSS Revises
RW
Rain shower
RWY Runway
RY
Runway
S South
SA
Sand (METAR)
SAB Satellite
Analysis
Branch
SAO
Surface observation
SASK Saskatchewan
SATFY Satisfactory
SBND Southbound
SBSD Subside
SBSDD Subsided
SBSDNC Subsidence
SBSDS Subsides
SC
South Carolina or
stratocumulus
SCND Second
SCNDRY Secondary
SCSL
Stratocumulus
standing lenticular
SCT
Scatter or Scattered
(describing cloud
cover or weather
phenomena, 3 to 4
octas cloud amount
SCTD Scattered
SCTR Sector
SD South
Dakota
SE Southeast
SEC Second
SELY Southeasterly
SEPN Separation
SEQ Sequence
SERN Southeastern
SEV Severe
SEWD Southeastward
SFC Surface
SFERICS
Atmospherics
SG Snow
grains
SGFNT Significant
SGFNTLY Significantly
SH
Showers
SHFT Shift
SHFTD Shifted
SHFTG Shifting
SHFTS Shifts
SHLD Shield
SHLW Shallow
SHRT Short
SHRTLY Shortly
SHRTWV Shortwave
SHUD Should
SHWR Shower
SIERNEV Sierra
Nevada
SIG Signature
SIGMET Significant
meteoro-
logical information
SIMUL Simultaneous
SK
Sky cover
SKC Sky
clear
SKED Schedule
SLD Solid
SLGT Slight
Common Weather Abbreviations
KMD 550/850 FIS Addendum
Appendix B