🌍 Everything you need to know about hurricanes, tornadoes, thunderstorms, blizzards, floods, tropical systems, and severe weather around the world.

Weather affects every corner of our planet. Every day, thousands of storms develop somewhere on Earth—from afternoon thunderstorms over Florida to powerful typhoons in the western Pacific and massive winter blizzards across North America. Some storms bring welcome rain, while others can cause catastrophic flooding, destructive winds, and widespread power outages.

At Orbis Weather, we monitor weather systems across the globe 24 hours a day, providing forecasts, live tracking maps, weather news, and severe weather alerts to help you stay informed.

🌀 Tropical Cyclones

A tropical cyclone is a rotating storm system that forms over warm tropical oceans. Although the name changes depending on where the storm forms, the science behind these powerful systems is essentially the same.

🌊 Tropical Disturbance

A tropical disturbance is an area of disorganized showers and thunderstorms that persists for at least 24 hours. Most tropical disturbances never strengthen, but a small percentage eventually develop into tropical depressions.

Typical wind speed

• Less than 25 mph (40 km/h)

🌧️ Tropical Wave

A tropical wave is a trough of low pressure that travels westward through the tropics. These waves often emerge from Africa and are responsible for many Atlantic hurricanes.

🌦️ Tropical Depression

Once a tropical system develops a closed circulation with sustained winds below 39 mph (63 km/h), it becomes a tropical depression.

Characteristics include:

• Organized circulation

• Heavy rain

• Gusty winds

• Increasing thunderstorm activity

💨 Tropical Storm

At 39 mph (63 km/h), the system receives an official name.

Tropical storms can produce:

• Flooding rain

• Tropical-storm-force winds

• Tornadoes

• Coastal flooding

• Dangerous surf

• Rip currents

🌀 Hurricane

A hurricane forms once sustained winds reach 74 mph (119 km/h).

Hurricane Categories

Category 3, 4, and 5 hurricanes are classified as Major Hurricanes because of their potential for catastrophic damage.

🌪️ Typhoon

Exactly the same type of storm as a hurricane but located in the western Pacific Ocean.

🌪️ Cyclone

The term used throughout the Indian Ocean and South Pacific.

🌩️ Thunderstorms

A thunderstorm develops whenever warm, moist air rises rapidly into colder air.

Every thunderstorm produces lightning.

Types

• Ordinary Thunderstorm

• Multi-cell Thunderstorm

• Supercell

• Squall Line

• Mesoscale Convective System

• Bow Echo

• Derecho

🌪️ Tornadoes

Tornadoes are violently rotating columns of air extending from thunderstorms.

EF Scale

Only a tiny percentage become EF5 tornadoes.

Waterspouts

Waterspouts are tornadoes that develop over water.

Florida experiences more waterspouts than almost anywhere else in the United States.

⚡ Lightning

Lightning is one of nature’s most dangerous hazards.

Lightning Facts

• Around 100 lightning flashes occur worldwide every second.

• A lightning bolt can heat the air to roughly 50,000°F (27,760°C)—hotter than the surface of the Sun.

• Thunder is created by the rapid expansion of air surrounding a lightning bolt.

🌧️ Flooding

Flooding causes more weather-related fatalities in many countries than tornadoes or hurricanes.

Types

• Flash Flood

• River Flood

• Urban Flood

• Coastal Flood

• Storm Surge Flooding

• Areal Flood

🌊 Storm Surge

Storm surge occurs when powerful winds push ocean water toward the coastline.

Storm surge—not wind—is responsible for many hurricane fatalities.

🌬️ Wind Storms

Strong wind events can occur with or without thunderstorms.

Examples include:

• Derechos

• Downbursts

• Microbursts

• Haboobs

• Dust Storms

• Sandstorms

• Straight-line Wind Events

❄️ Winter Storms

Winter weather produces several unique storm types.

Snowstorm

Heavy snowfall reducing travel safety.

Blizzard

A blizzard requires:

• Winds of at least 35 mph (56 km/h)

• Visibility below one-quarter mile

• Duration of at least three hours

Ice Storm

Rain freezes instantly on cold surfaces, creating dangerous ice accumulations.

Bomb Cyclone

A rapidly intensifying low-pressure system whose central pressure drops at least 24 millibars in 24 hours.

🌧️ Atmospheric Rivers

Atmospheric rivers are long corridors of moisture in the atmosphere that transport enormous amounts of water vapor.

They can produce:

• Flooding

• Heavy mountain snow

• Landslides

🌋 Volcanic Weather Hazards

Volcanoes can generate:

• Ash clouds

• Volcanic lightning

• Lahars

• Pyrocumulonimbus clouds

Ash clouds are particularly hazardous to aviation.

🔥 Fire Weather

Wildfires create their own weather.

Meteorologists monitor:

• Temperature

• Relative humidity

• Wind speed

• Fuel moisture

• Drought conditions

Red Flag Warnings indicate conditions favorable for rapid wildfire growth.

🌡️ Heat Waves

Heat waves occur when unusually hot weather persists for several days.

Heat is one of the deadliest weather hazards worldwide.

🥶 Cold Waves

Arctic air outbreaks can produce:

• Dangerous wind chills

• Frozen pipes

• Ice-covered roads

• Power outages

🌍 Storm Seasons Around the World

Atlantic Hurricane Season

June 1 – November 30

Peak activity:
Mid-August through October

Eastern Pacific Hurricane Season

May 15 – November 30

Western Pacific

Typhoons can develop during any month, although activity is highest from July through October.

Australian Cyclone Season

Typically runs from November through April.

🛰️ How Meteorologists Track Storms

Modern forecasting uses:

• Weather satellites

• Doppler radar

• Hurricane Hunter aircraft

• Ocean buoys

• Weather balloons

• Computer forecast models

• Artificial intelligence

• Surface observation networks

📈 Famous Storms in History

Some of history’s most significant weather events include:

• The 1900 Galveston Hurricane

• Hurricane Katrina (2005)

• Hurricane Andrew (1992)

• Typhoon Haiyan (2013)

• Superstorm Sandy (2012)

• The Tri-State Tornado (1925)

• The Great Blizzard of 1888

• The Dust Bowl storms of the 1930s

Each helped improve forecasting, emergency management, and public preparedness.

🛡️ Storm Safety Tips

Before severe weather:

• Monitor reliable forecasts.

• Have multiple ways to receive warnings.

• Prepare an emergency kit.

• Know your evacuation route.

• Secure outdoor furniture.

• Charge electronic devices.

• Keep fresh water and non-perishable food available.

Never drive through floodwaters, ignore evacuation orders, or underestimate lightning, rip currents, or high surf.

🌎 Why Understanding Storms Matters

Weather affects transportation, agriculture, tourism, emergency services, shipping, aviation, energy production, and daily life. Knowing how storms develop—and the hazards they bring—helps individuals and communities prepare and respond more effectively.

Whether you’re tracking a tropical wave in the Atlantic, watching a tornado outbreak across the Plains, monitoring wildfire conditions in the West, or following a winter storm in Europe, staying informed can make a critical difference.

Follow Orbis Weather

Orbis Weather provides:

• 🌀 Live Hurricane Tracker

• 🌍 Real-Time Earthquake Map

• 🌩️ Severe Weather Alerts

• 🌊 Beach & Marine Conditions

• 🌧️ Tropical Outlooks

• ❄️ Winter Storm Coverage

• 🔥 Wildfire Weather Updates

• 🌎 Global Weather News

• 📡 Interactive Weather Maps

• 📈 Expert Forecasts

Our mission is simple: deliver timely, accurate, and accessible weather information from around the world—helping you understand what’s happening today and prepare for what comes next.