Understanding the NWS Mission
The National Weather Service (NWS) serves as the primary source for weather forecasts. In 2024, 1,735 tornadoes were recorded?the second-highest count on record.
The Storm Prediction Center and Convective Outlooks
SPC issues convective outlooks extending up to 8 days in advance. SPC added Conditional Intensity Groups to highlight tornado, wind, and hail intensity.
Doppler Radar Network and Real-Time Detection
The NWS operates NEXRAD with 160+ stations. Radar Next uses phased array technology to scan in under 1 minute versus 5-6 minutes, enabling faster detection and earlier warnings.
GOES Satellites and Enhanced Detection
GOES-T satellite has significantly improved detection with enhanced infrared imaging and cloud-top feature tracking.
Warn-on-Forecast System
WoFS performs rapid radar and satellite assimilation at 5-minute resolution. Average tornado warning lead time is 13 minutes.
Watches Versus Warnings
Watches indicate conditions favorable for severe weather. Warnings mean severe weather is imminent or occurring.
How Homeowners Should Use NWS Tools
Access forecasts through weather.gov, NOAA Weather Radio, mobile apps, and local media. Identify a safe room and maintain multiple communication methods.
Post-Storm Emergency Response
StormWrappers assists communities in post-storm recovery, helping homeowners with insurance claims and emergency resources.
2024 Tornado Data
2024 marked the second-highest tornado count with 1,735. EF-2+ tornadoes were most active since 2011.
How far in advance can NWS predict severe weather?
SPC issues outlooks 8 days ahead. Real-time lead times average 13 minutes with WoFS.
What is the difference between warnings?
Severe thunderstorm warnings indicate damaging winds or hail. Tornado warnings mean a tornado was sighted.
How do phased array radars help?
Phased arrays scan in under 1 minute versus 5-6 minutes for conventional radar.
What to do during tornado warning?
Move to a safe room on the lowest floor, away from windows.
How to stay informed?
Monitor weather.gov, NOAA Weather Radio, apps, and local media.
What is WoFS?
WoFS integrates radar and satellite data for faster, more confident tornado warnings.
