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Severe Weather Tracker
Track severe thunderstorms, special marine warnings, and tornado watches with real-time data from the National Weather Service.
Weather Tracker Guide
1This Page
Tracks all active severe weather alerts like severe thunderstorm warnings, flash flood warnings, and special marine warnings.
2Tornado Warnings
For active tornado warnings and tracking, visit our tornado tracker →
Live Severe Weather Map
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Active Severe Weather Alerts
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Expired Severe Weather Alerts Map
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Expired Severe Weather Alerts
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About Severe Weather Alerts
This page tracks potentially tornadic weather conditions, including severe thunderstorms, special marine warnings, and tornado watches. Our data comes directly from the National Weather Service (NWS) API, updating every 60 seconds.
Types of Alerts We Track
Tornado Watch
Conditions are favorable for tornado development in the watch area.
- Typically covers multiple counties or states
- Usually issued 4-8 hours in advance
- Time to prepare and stay weather-aware
- Monitor for possible warnings
Severe Thunderstorm Warning
Storm capable of producing damaging winds and/or large hail.
- May develop rotation and spawn tornadoes
- Typically 30-60 minute duration
- Covers specific storm areas
- Requires immediate attention
Special Marine Warning
Hazardous marine conditions including waterspouts.
- Waterspouts can move onshore as tornadoes
- Affects coastal and marine areas
- Important for maritime safety
- Often precedes tornado warnings
Mesoscale Discussion
Technical updates about storm development and potential.
- Forecaster insights on storm evolution
- Probability of severe weather
- Timing of watch/warning issuance
- Areas of greatest concern
How to Use This Page
This page serves as an early warning system for potential tornado development. While our main page focuses on active tornado warnings, here you'll find the conditions that often precede tornado formation:
- Monitor tornado watches to know when conditions are favorable
- Track severe thunderstorms that could develop rotation
- Watch for special marine warnings that may indicate waterspouts
- Follow storm progression and intensification
60-Second Updates
Fresh data from NWS every 60 seconds
Precise Mapping
Exact alert areas with radar overlay
Official Source
Direct from National Weather Service