Weather Acronyms: R's

R	Base Reflectivity, red, right, or restricted area
RA	Rain
RADAT	Radiosonde observation data
RAFC	Regional Area Forecast Center
RAFS	Regional Analysis and Forecasting System.
RAG	Ragged
RAMSDIS	RAMM Advanced Meteorological Satellite Demonstration and Interpretation System
RAOB	Radiosonde Observation
RAOBS	Radiosonde observations
RCH	Reach or reaching
RCHD	Reached
RCHG	Reaching
RCHS	Reaches
RCKY	Rocky
RCKYS	Rockies
RCM	Radar Coded Message
RCMD	Recommend
RCMDD	Recommended
RCMDG	Recommending
RCMDS	Recommends
RCRD	Record
RCRDS	Records
RCS	Reflectivity Cross Section
RCV	Receive
RCVD	Received
RCVG	Receiving
RCVS	Receives
RDA	Radar Data Acquisition
RDC	Reduce
RDGG	Ridging
RDR	Radar
RDVLP	Redevelop
RDVLPG	Redeveloping
RDVLPMT	Redevelopment
RE	Regard or Recent
REC	Recreation Report
RECON	Reconnaissance
REF	Reference
REP	Report or reporting or reporting point
REPL	Replace
REPLD	Replaced
REPLG	Replacing
REPLS	Replaces
REQ	Request or requested
REQS	Requests
REQSTD	Requested
RES	Reserve
RESP	Response
RESTR	Restrict
RFC	River Forecast Center
RFD	Rear Flank Downdraft
RGD	Ragged
RGL	Regional Model
RGLR	Regular
RGN	Region
RGNS	Regions
RGT	Right
RH	Relative Humidity
RHI	Range-Height Indicator
RHINO	RHI not operative
RI	Rhode Island
RIOGD	Rio Grande
RL	Report leaving
RLBL	Reliable
RLTV	Relative
RLTVLY	Relatively
RMK	Remark
RMN	Remain
RMND	Remained
RMNDR	Remainder
RMNG	Remaining
RMNS	Remains
RNFL	Rainfall
ROBEX	Regional OPMET bulletin exchange (scheme)
ROC	Rate of climb
ROD	Rate of descent
ROFOR	Route forecast (in aeronautical meteorological code)
ROML	Regional Operations Manual Letter.
ROSA	Remote Observing System Automation
ROT	Rotate
ROTD	Rotated
ROTG	Rotating
ROTS	Rotates
RPD	Rapid
RPDLY	Rapidly
RPG	Radar Product Generator
RPLC	Replace or replaced
RPLCD	Replaced
RPLCG	Replacing
RPLCS	Replaces
RPRT	Report
RPRTD	Reported
RPRTG	Reporting
RPRTS	Reports
RPT	Repeat
RPTG	Repeating
RPTS	Repeats
RQR	Require
RQRD	Required
RQRG	Requiring
RQRS	Requires
RR	Report reaching
RRA	(or RRB, RRC ... etc., in sequence) Delayed meteorological message (message type designator)
RS	Receiver station
RSG	Rising
RSN	Reason
RSNG	Reasoning
RSNS	Reasons
RSTR	Restrict
RSTRD	Restricted
RSTRG	Restricting
RSTRS	Restricts
RTD	Delayed (used to indicate delayed meteorological message; message type designator)
RTE	Route
RTN	Return or returned or returning
RTRN	Return
RTRND	Returned
RTRNG	Returning
RTRNS	Returns
RUC	Rapid Update Cycle
RUF	Rough
RUFLY	Roughly
RVA	River Summary
RVF	River Forecast
RVI	River Ice Statement
RVR	River Recreation Statement or Runway Visual Range
RVS	River Statement or Revise
RVSD	Revised
RVSG	Revising
RVSS	Revises
RW	Rain Shower
RWY	Runway