B
B- - Convective Inhibition
B - Blue
B+ - Convective Available Potential Energy
BA - Braking action
BACLIN - Baroclinic
BAJA - Baja California
BASE - Cloud base
BATROP - Barotropic
BC - British Columbia
BCFG - Fog patches
BCH - Beach
BCKG - Backing
BCM - Become
BCMG - Becoming
BCMS - Becomes
BD - Blowing dust
BDA - Bermuda
BDRY - Boundary
BECMG - Becoming
BFDK - Before dark
BFR - Before
BGN - Begin
BGNG - Beginning
BGNS - Begins
BHND - Behind
BINOVC - Breaks in overcast
BKN - Broken
BL... - Blowing (followed by DU = dust, SA = sand or SN = snow)
BLD - Build
BLDG - Building
BLDS - Builds
BLDU - Blowing Dust
BLDUP - Buildup
BLKHLS - Black Hills
BLKT - Blanket
BLKTG - Blanketing
BLKTS - Blankets
BLO - Below
BLSA - Blowing Sand
BLSN - Blowing Snow
BLW - Below ...
BLZD - Blizzard
BM - Benchmark
BND - Bound
BNDRY - Boundary
BNDRYS - Boundaries
BNTH - Beneath
BOOTHEEL - Bootheel
BR - Mist
BRF - Brief
BRG - Branching
BRK - Break
BRKG - Breaking
BRKHIC - Breaks in higher clouds
BRKS - Breaks
BRKSHR - Berkshire
BRKSHRS - Berkshires
BRM - Barometer
BRN - Bulk Richardson Number
BRS - Branches
BT - Bathythermograph
BTL - Between layers
BTWN - Between
BWER - Bounded Weak Echo Region
BYD - Beyond