Track severe weather in real-time with Storm Spanker, a free live storm tracker powered by NEXRAD Doppler radar and Storm Prediction Center (SPC) verified reports. Monitor hail storms, tornadoes, and damaging winds as they happen across the United States. Perfect for homeowners, roofing contractors, and storm chasers who need accurate, up-to-the-minute severe weather data.
Yellow pins represent storm cells detected by NEXRAD radar. These are unverified but show potential severe weather including hail. Each pin displays estimated hail size, POSH percentage, and threat level based on radar returns.
Red pins are Storm Prediction Center verified reports from trained storm spotters and emergency management. These confirm actual hail on the ground, measured wind speeds, or tornado touchdowns.
Storm cells are color-coded by threat: green (low threat), yellow (moderate), orange (high threat with large hail possible), and red (extreme threat with giant hail or tornado signatures).
Storm Spanker is a free real-time severe weather tracker that shows live NEXRAD radar data and Storm Prediction Center (SPC) verified reports. It displays active storm cells, hail detections, wind reports, and tornado warnings across the United States.
Storm Spanker pulls data from two sources: NEXRAD Doppler radar stations (shown as yellow pins) detect potential storm cells with hail, while the Storm Prediction Center provides verified reports (shown as red pins) confirmed by trained spotters. Data updates every 2 minutes.
Yellow pins are radar-detected storm cells (unverified but showing potential hail). Red pins are SPC-verified reports confirmed by storm spotters. Pin colors also indicate threat level: green (low), yellow (moderate), orange (high), and red (extreme).
Yes! Storm Spanker shows Tornado Vortex Signatures (TVS) detected by NEXRAD radar and verified tornado reports from the Storm Prediction Center. These are indicated by special icons and highlighted in red for maximum visibility.
Storm Spanker shows verified hail reports with exact sizes and locations. This data is valuable for insurance claims as it provides documented evidence of storm activity in your area. For historical storm data, check our hail map pages.
View historical hail and storm data for states in Tornado Alley and beyond:
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