Revision 6 Feb/2009
B-17
SLGTLY Slightly
SLO Slow
SLOLY Slowly
SLOR Slower
SLP
Slope or sea level
pressure
SLPG Sloping
SLPNO
Sea-level pressure
not available
SLT
Sleet
SLW Slow
SLY Southerly
SM Statute
mile
SMK
Smoke
SML Small
SMLR Smaller
SMRY Summary
SMS
Sunchronous mete-
orological satellite
SMTH Smooth
SMTHR Smoother
SMTHST Smoothest
SMTM Sometime
SMWHT Somewhat
SN Snow
SNBNK Snowbank
SND
Sand
SNFLK Snowflake
SNGL Single
SNOINCR Snow
increase
SNOINCRG Snow
increasing
SNST Sunset
SNW
Snow
SNWFL
Snowfall
SOP Standard
operating
procedure
SP
Snow pellets
SPC Storm
Prediction
Center
SPCLY Especially
SPD Speed
SPECI
Special observation
SPENES
Satellite precip.
estimate statement
SPKL Sprinkle
SPLNS Southern
Plains
SPRD Spread
SPRDG Spreading
SPRDS Spreads
SPRL Spiral
SQ Squall
SQAL
Squall
SQLN Squall
line
SR Sunrise
SRN Southern
SRND Surround
SRNDD Surrounded
SRNDG Surrounding
SRNDS Surrounds
SS
Sunset or sand
storm (METAR)
SSE South-southeast
SSELY South-southeasterly
SSERN South-southeastern
SSEWD South-southeastward
SSW South-southwest
SSWLY South-southwesterly
SSWRN South-southwestern
SSWWD South-southwest-
ward
ST Stratus
STAGN Stagnation
STBL Stable
STBLTY Stability
STD Standard
STDY Steady
STFR Stratus
fractus
STFRM Stratiform
STG Strong
STGLY Strongly
STGR Stronger
STGST Strongest
STLT
Satellite
STM Storm
Common Weather Abbreviations
KMD 550/850 FIS Addendum
Appendix B