National Weather Service United States Department of Commerce

Hot temperatures and critical fire weather conditions for portions of California

Critical fire weather conditions will be prevalent across parts of southern California this weekend. Any fires that start in this area could quickly grow out of control; Red Flag Warnings are in effect. Unseasonably hot temperatures will contribute to this fire danger, and Heat Advisories are also in effect for portions of California. Read More >

BTV4

WRF Core: NMM
Grid Spacing: 4km
Forecast Hours: 60
Runs: 00z, 06z, 12z and 18z every day
Initial Conditions: 12km NAM
Convective Scheme: None
Microphysics Scheme: Ferrier
Boundary Layer Scheme: Mellor-Yamada-Janjic

BTV4G

WRF Core: ARW
Grid Spacing: 4km
Forecast Hours: 60
Runs: 00z, 06z, 12z and 18z every day
Initial Conditions: 13.5km RAP
Convective Scheme: None
Microphysics Scheme: New Thompson Graupel
Boundary Layer Scheme: Yonsei University

BTV6

WRF Core: NMM
Grid Spacing: 6km
Forecast Hours: 18
Runs: 00z, 03z, 06z, 09z, 12z, 15z, 18z and 21z every day
Initial Conditions: 13km RAP
Convective Scheme: None
Microphysics Scheme: Ferrier
Boundary Layer Scheme: Mellor-Yamada-Janjic