Weather ❯ Atmospheric Conditions

High Pressure Systems

Weather Patterns Cold Fronts Effects on Weather Low Pressure Systems Clear Skies Cloud Cover Seasonal Patterns Wind Patterns Weather Fronts Temperature Increases Ridge Patterns Dry Weather Heat Domes Upper-level Lows Breezes Air Masses Fog Subtropical High Pressure Moisture Levels Settled Weather Effects of High Pressure Jet Stream North Sea Influence Hochdruckgebiete Signal Disruption Temperature Variability Inversion Weather Temperature Changes Okinawa Effects on Temperature Moisture Trapping Anticyclonic Gloom Fog Formation Mild Air Anticyclones Pressure Changes Pressure Patterns Anticyclonic Blocking Sunshine Temperature Inversions Temperature Peaks Weather Stability Blocking Ridges Weather Influences

Record December Heat Persists in San Diego County as More Highs Fall

A persistent high-pressure ridge keeps temperatures far above normal.

Las Vegas Nears Record Warmth Before Late-Week Cooldown

Delta Breeze and Marine Layer Bring Cool Down to Northern California