KMD 550/850 FIS Addendum
Appendix B
Revision 2 Nov/2002
B-15
NVA Negative
vorticity
advection
NW Northwest
NWD Northward
NWLY Northwesterly
NWRN Northwestern
NWS National
Weather
Service
NY New
York
NXT Next
OAT
Outside air temper-
ature
OBND Outbound
OBS Observation
OBSC Obscure
OBSCD Obscured
OBSCG Obscuring
OCFNT Occluded
front
OCLD Occlude
OCLDS Occludes
OCLDD Occluded
OCLDG Occluding
OCLN Occlusion
OCNL Occasional
OCNLY Occasionally
OCR Occur
OCRD Occurred
OCRG Occurring
OCRS Occurs
OFC Office
OFCM
Office of the
Federal Coordinator
for Meteorology
OFP Occluded
frontal
passage
OFSHR Offshore
OH Ohio
OHD
Overhead
OK Oklahoma
OMTNS Over
mountains
ONSHR On
shore
OR Oregon
ORGPHC Orographic
ORIG Original
OSV Ocean
station
vessel
OTLK Outlook
OTP On
top
OTR Other
OTRW Otherwise
OUTFLO Outflow
OV
Over
OVC Overcast
OVHD Overhead
OVNGT Overnight
OVR Over
OVRN Overrun
OVRNG Overrunning
OVTK Overtake
OVTKG Overtaking
OVTKS Overtakes
P
Higher than
greatest sensor
value
P6SM
Visibility forecast to
be greater than 6
statute miles
Appendix B R2 11/21/02 5:32 PM Page 15