Weather ❯ Meteorology ❯ Weather Patterns

Storm Systems

Cold Fronts Thunderstorm Development Rain Events Rainfall Thunderstorm Activity Thunderstorms Severe Thunderstorms Impact on Communities Forecast Models Weather Alerts

Extreme Heat Warning Covers Twin Cities as Humid Air Builds

Hot, humid air will push heat indices near 110°F and create dangerous conditions for people with health vulnerabilities.

Chicago Braces for Thunderstorms and a Sharp Midweek Cooldown

Tornado Watch Expanded Across DC Region as Fast-Moving Storms Trigger Warnings

Atlantic Front Ends France’s Early Warmth as Late-Week Cold Snap Looms

SAWS Warns of High-Impact Storms as Cut-Off Low Sweeps Across South Africa

SAWS Flags Severe Thunderstorms as Fire Danger and Heat Grip South Africa

SAWS Extends Severe-Storm Alerts as Gauteng and KZN Face Flood Risk

Warm Stretch Holds Through Saturday as Pacific Storm Targets Mountains, Triggers Foothill High-Wind Threat

Winter Storm Watches Posted for Northern and Central California Ahead of Monday Pacific System

Flash Flood Warning for Grant, Morrow and Umatilla Counties After Hail-Producing Storms

France Storms Ease as Orange Alert Shrinks to Var and Bouches-du-Rhône

Midwest Enjoys Sunny Father’s Day as Storm Risks Return by Midweek

Storms Linger into Tuesday, Leaving Over 180,000 Houston-Area Residents Without Power

Southern California Prepares for Heavy Rain and Snow Next Week

Snow Squalls, Strong Winds, and Winter Storms Sweep Across Northeast

Germany Faces Gloomy Second Advent Weekend with Rain and Mild Temperatures