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High Pressure Systems

Temperature Trends Low Pressure Systems Cold Fronts Air Masses Temperature Increases Cloud Cover Dry Weather Wind Patterns Impact on Weather Wind Effects

Southern Colorado Braces for Mid-Week Heat That Could Top Records

Forecasters warn hot, dry winds will raise wildfire risk as temperatures peak Wednesday.

Early Heat Wave to Push Las Vegas Into 90s This Weekend

Winter Smog Persists Over Eastern and Northern Germany, With PM Limits Breached in Saxony and Lower Saxony

Chilly Start, Sunny Finish for Houston's MLK Day as Midweek Rain Builds

Phoenix’s Warm, Dry Stretch to Persist Through Weekend

Salt Lake City Leads U.S. Air Pollution for Second Day as Inversion Persists

Las Vegas Sets Dec. 11 Heat Record as Unseasonable Warmth Persists Into Next Two Weeks

Phoenix Heads for Upper 70s Late Week, Flirting With December Records

Italy Basks in Late Heat as Models Flag Cool, Stormy Turn Next Week

Warm, Sunny Stretch Sets Up in West Michigan This Week

Delta Breeze Maintains Unusually Cool July Across Northern California

Germany Faces Severe Spring Drought with Widespread Crop Failures

France Faces Record-Breaking Heat Wave as May Begins

UK Prepares for Warm Spell Following April Rainfall Deficit

Germany Faces Intermittent Rain and Rising Temperatures Amid Persistent Drought

UK to Enjoy Warmer Spring Weather Next Week with Highs of 23C

Germany Welcomes Sunny and Dry Weather for Early Spring and Carnival

Germany Faces Severe Air Pollution Crisis Due to High Fine Dust Levels

Germany Braces for Frosty Start to the Week with Fog and Glaze Warnings

UK Forecast Predicts Mild and Snowless Christmas Day