KinwarnLive · Storm Prediction Center data
Severe weather outlook
The risk of severe thunderstorms and tornadoes today, tomorrow and the day after, from the Storm Prediction Center. Pin your family’s homes to see the risk at each one.
Sample data from the night of April 27, 2024. These warnings are not in effect. (Only shown on a developer's computer.)
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The five risk levels
| Level | Name | In short |
|---|---|---|
| 1 | Marginal | Severe storms of limited organization and length, or very few and of marginal strength. |
| 2 | Slight | Organized severe storms expected, usually in low coverage, with varying strength. |
| 3 | Enhanced | A greater concentration of organized severe storms, with varying strength. |
| 4 | Moderate | Potential for widespread severe weather, with several tornadoes and/or numerous severe storms. |
| 5 | High | A severe weather outbreak expected: numerous intense, long-track tornadoes, or a long-lived derecho with hurricane-force wind gusts. |
An outlook covers a large area. It does not say whether a storm will hit a given home. Our advice: on days with level 3 or higher near your family, check that everyone knows where to shelter and that their alerts are on.
Read more: severe weather risk levels explained.
A heads up before storm days.
Kinwarn Pro reminds you when the risk is high at a family member’s home, and alerts you when a warning covers it.
Coming soon to the App Store · iPhoneKinwarn adds to official alerts. Keep Wireless Emergency Alerts on.
Questions people ask
What are the severe weather risk levels?
The Storm Prediction Center uses five levels: 1 marginal, 2 slight, 3 enhanced, 4 moderate and 5 high, each a progressively larger threat of organized severe storms. The light green general thunderstorms area marks a 10% or higher chance of thunderstorms that are not expected to be severe.
Does a slight risk mean tornadoes are unlikely?
Not necessarily. At a slight risk (level 2), organized severe storms are expected, usually in low coverage. NOAA lists a 5% or greater tornado probability as one of the ways an area can reach a slight risk.
Sources
Live maps
Tornado warnings
Every tornado warning in effect, with radar and storm reports.
Severe thunderstorm warnings
Damaging wind and large hail, with the size and speed NWS expects.
Flash flood warnings
Flash flood warnings and emergencies, plus flood watches.
Tornado watches
Where conditions favor tornadoes in the next few hours.
Severe thunderstorm watches
Where severe storms could form in the next few hours.