Acronyms: C's

C	Center (runway identification) or Degrees Celsius (Centigrade)
CA	Cloud-Air Lightning or California
CAA	Cold Air Advection
CADAS	Centralized Automated Data Acquisition System
CAPE	Convective Available Potential Energy
CAPPI	Constant Altitude PPI.
CARIB	Caribbean
CASCDS	Cascades
CAT	Category or Clear Air Turbulence
CAVOK	Visibility, cloud and present weather better than prescribed values or conditions
CAVU	Ceiling and visibility unlimited
Cb or CB	Cumulonimbus Cloud
CBMAM	Cumulonimbus Mammatus
CBS	Cumulonimbi
Cc or CC	Cirrocumulus
CC	Cloud-Cloud Lightning
CCA	(or CCB, CCC ... etc, in sequence) Corrected meteorological message (message type designator)
CCL	Convective Condensation Level
CCLDS	Clear of clouds
CCLKWS	Counter-clockwise
CCSL	Cirrocumulus Standing Lenticular
CD	Climatological Data
CDA	NOAA or NESDIS Command and Data Acquisition (CDA) Station
CDC	Climate Diagnostics Center
CDFNT	Cold front
CDFNTL	Cold frontal
CEM	Civil Emergency Message
CFP	Cold front passage
CFS	Cubic Feet per Second
CG	Cloud-Ground Lightning
CHC	Chance
CHCS	Chances
CHG	Change
CHGD	Changed
CHGG	Changing
CHGS	Changes
CHSPK	Chesapeake
Ci or CI	Cirrus
CIG	Ceiling
CIGS	Ceilings
CIN	Convective Inhibition
CISK	Conditional Instability of the Second Kind.
CLA	Clear type of ice formation
CLD	Cloud
CLDNS	Cloudiness
CLDS	Clouds
CLEGLFGLS	Great Lakes Marine Synopsis
CLEGLOCLE	Great Lakes Storm Outlook
CLEGLSCLE	Great Lakes Storm Summary
CLEICEFBO	Great Lakes Freeze-Up Outlook or Great Lakes Ice Outlook for the Opening of Navigation
CLEICEIO	Great Lakes 5-Day Ice Outlook
CLKWS	Clockwise
CLR	Clear
CLRG	Clearing
CLRS	Clears
CM	Centimeter
CMPLX	Complex
CNCL	Cancel
CNCLD	Canceled
CNCLG	Cancelling
CNCLS	Cancels
CNDN	Canadian
CNFDC	Confidence
CNIF	Calibration Network Information Files
CNL	Cancel or canceled
CNTR	Center
CNTRD	Centered
CNTRL	Central
CNTRLN	Centerline
CNTRS	Centers
CNTY	County
CNTYS	Counties
CNVG	Converge
CNVGG	Converging
CNVGNC	Convergence
CNVTN	Convection
CNVTV	Convective
CNVTVLY	Convectively
CO	Colorado
COE	An acronym for Corps of Engineers
COM	Communications
COMPAR	Compare
COMPARD	Compared
COMPARG	Comparing
COMPARS	Compares
COND	Conditions
CONS	Continuous
CONSHELF	Continental Shelf
CONT	Continue(s) or continued
CONTD	Continued
CONTDVD	Continental Divide
CONTG	Continuing
CONTLY	Continually
CONTRAILS	Condensation Trails
CONTS	Continues
CONUS	Continental United States.
COOR	Co-ordinate or co-ordination
COORD	Coordinate
COR	Correction
COT	At the coast
COV	Cover or covered or covering
CPBL	Capable
CPC	Climate Prediction Center
CPHC	Central Pacific Hurricane Center
CR	Composite Reflectivity
CRC	Composite Reflectivity Contour
CRC	Circle
CRCLC	Circulate
CRCLN	Circulation
CRNR	Corner
CRNRS	Corners
CRP	Critical Rainfall Probability
CRS	Course
Cs or CS	Cirrostratus
CS	Combined Shear
CSC	Combined Shear Contour
CSDR	Consider
CSDRBL	Considerable
CSI	Conditional Symmetric Instability
CST	Coast
CSTL	Coastal
CT	Connecticut or Cross Totals
CTGY	Category
CTSKLS	Catskills
Cu or CU	Cumulus.
CUF	Cumuliform
CUFRA	Cumulus Fractus
CVR	Cover
CVRD	Covered
CVRG	Covering
CVRS	Covers
CW	Cloud-Water Lightning or Continuous Wave
CWA	County Warning Area
CWF	Coastal Marine Forecasts
CYC	Cyclonic
CYCLGN	Cyclogenesis

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