National Weather Service United States Department of Commerce

Weather Acronyms: B's

B- Convective Inhibition
B+ Convective Available Potential Energy
B Blue
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
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