KMOV weather radar provides St Louis residents with fast, accurate local storm tracking and up to the minute severe weather alerts. This overview explains how the radar network serves the metro area and what viewers should know during tornado and flood threats.
Below is a quick reference table that compares key details about the primary KMOV radar and related regional resources used by forecasters and the public.
| Radar Site | Location | Coverage Focus | Update Frequency |
|---|---|---|---|
| KMOV St Louis | South Central Illinois | Metro area core | Every 4–6 minutes |
| KFTL Lincoln | Near Springfield IL | Western suburbs | Every 5–8 minutes |
| KLSX Rolla | Mid Missouri | Upper Mississippi valleys | Every 6–10 minutes |
| KBMX Duluth MN | North Shore MN | {"td": "Regional Great Lakes trends"}}Every 5 minutes |
KMOV Radar Coverage In St Louis Metro
The primary KMOV radar scans a broad section of the St Louis metropolitan region, capturing developing thunderstorms and rotating cells. Operators tune the beam to reduce ground clutter from the Mississippi River and urban structures, improving visibility of low level inflow.
Typical Scan Strategy
During routine periods the radar completes a volume scan every 4–6 minutes, prioritizing low elevation angles to track storm initiation along the river valleys. When a Severe Thunderstorm or Tornado Warning is issued, the system increases sampling and may run supplemental high resolution scans.
Severe Weather Alerts For St Louis
KMOV integrates National Weather Service products with its own live radar, issuing timely alerts for flash floods, hail, and damaging winds. Viewers often see on air cut ins that highlight the most intense cores using velocity and reflectivity overlays.
Notification Channels
- Over the air broadcast interruptions
- Push notifications from station apps
- Social media posts with radar loops
- Partnership alerts with local emergency management
How Radar Data Is Used On Air
Meteorologists at KMOV analyze base reflectivity, base velocity, and storm relative velocity to identify rotation, downbursts, and heavy precipitation cores. They combine these visuals with thermodynamic soundings and satellite imagery to refine timing and location for each warning polygon.
Decision Support Tools
Tools such as cross section slicing, mesocyclone detection algorithms, and rapid update mosaics allow the team to communicate concise, evidence based warnings to the St Louis public. This workflow helps balance speed with accuracy during fast evolving events.
Key Takeaways For St Louis Viewers
- KMOV radar provides frequent updates during severe weather
- Multiple alert channels keep residents informed quickly
- On air meteorologists explain radar evidence for public safety
- Cross county and state boundaries for complete storm context
- Combine radar cues with official warnings for personal decisions
FAQ
Reader questions
How often does the KMOV radar refresh during a severe thunderstorm warning?
During an active Severe Thunderstorm Warning the radar can produce high resolution scans every 4–6 minutes, with supplemental elevated scans added when rotation is detected.
Can I see live KMOW radar on the station website or app?
Yes, the KMOV digital platforms provide a live radar stream, short term loops, and alert layers that highlight warning areas in real time for St Louis viewers.
Does the KMOV radar cover both Illinois and Missouri sides of the metro area?
Absolutely, the main radar beam is optimized to cover the entire St Louis metro, including downtown, the East Side, and western suburbs across the Mississippi River.
What should I do if I see a tornado signature on the radar but no warning has been issued?
Stay alert, monitor official alerts from the National Weather Service, and follow any local guidance from KMOV and emergency officials; on air interpretation by meteorologists helps translate raw radar into actionable safety steps.