Live National Weather Service alerts, NEXRAD weather radar, USGS river and stream gauges, Storm Prediction Center convective outlooks, Local Storm Reports, 5-day forecast, air quality, and severe-weather notifications for Johnson County, KS (FIPS 20091) in Kansas. Free, no login, no ads.
Johnson County, KS is one of the counties of Kansas covered by BloomWX. Johnson County, KS has a population of approximately 610,742 (2022 estimate, US Census Bureau). The county covers 473.6 square miles of land area. The county seat is Olathe.
Overland Park, Olathe, Shawnee, Lenexa, Leawood.
Johnson County, KS is served by the National Weather Service EAX forecast office for warnings, watches, advisories, and decision-support services. The same office produces the Hazardous Weather Outlook, Area Forecast Discussion, and DSS briefing packets you'll see on the BloomWX dashboard for this county.
BloomWX also covers the surrounding counties: Franklin County, KS, Douglas County, KS, Miami County, KS, Jackson County, MO, Cass County, MO, Leavenworth County, KS, Wyandotte County, KS.
BloomWX is a free weather operations dashboard for SKYWARN storm spotters, emergency management volunteers, ham radio nets, and anyone in Johnson County, KS who needs the official NWS data without the consumer-app cruft. Data is pulled directly from weather.gov and refreshes every 60 seconds. Sources: National Weather Service, Storm Prediction Center, USGS Water Data, NOAA Space Weather Prediction Center, Open-Meteo (Air Quality), and the Citizen Weather Observer Program.
Read the BloomWX learn library for beginner-friendly explainers on every dashboard surface, including SPC convective outlooks (TSTM/MRGL/SLGT/ENH/MDT/HIGH), NEXRAD radar, USGS flood gauges, and WPC surface analysis charts. See all Kansas county weather dashboards on BloomWX.