St. Louis is tracking an active spring weather event that could unfold in two phases: unsettled storms tonight into tomorrow morning, followed by a peak severe-weather threat Monday afternoon.
As a scientist with 30 years in meteorology, I’ll break down what this means for residents, including timing, expected hazards, and practical safety steps.
The forecast emphasizes a window from mid-afternoon into the evening when storms become most capable of producing damaging weather.
Forecast Details and Timeline for St. Louis
A storm system will edge into the region late tonight into Monday morning, likely bringing clusters of storms capable of large hail and locally heavy rain.
The amount and longevity of the early round are uncertain, and this could influence how much atmospheric recovery occurs for the afternoon.
Uncertainty about the morning activity is a critical driver of how the later threat evolves.
Morning into early afternoon: evolving storms and uncertainties
Early storms are expected to develop as supercells, elevating the risk for very large hail and a few tornadoes, including some possibly strong.
As storms mature, they may merge into lines or line segments, shifting the primary threat toward damaging straight-line winds and brief tornadoes.
Residents should monitor updates closely as the scenario could change with new data and storm tracks.
Afternoon into evening: the peak severe-weather window
Strong southerly winds will push temperatures into the mid-80s, increasing atmospheric instability and the potential for violent storms.
The overall window for severe weather is projected to be roughly 2 PM to 10 PM.
The highest risk is expected to be confined to a one- to two-hour period for any given location.
The risk phase may begin with early storms and then evolve into a broader severe-wind and tornado threat as the system organizes.
What residents should do and where to get updates
Residents should be prepared for multiple modes of severe weather throughout the event. Early storms may produce large hail and tornadoes.
Later activity could bring damaging winds. Stay alert to shifting forecasts and safety messages as the situation develops on FOX2Now.com, the FOX 2 News app, and FOX 2 STL+.
Timely warnings will help you take shelter and stay safe as the weather evolves.
- Review your family emergency plan and designate a safe shelter area in your home or workplace.
- Secure outdoor objects and protect windows if forecasts indicate high winds.
- Enable NOAA Weather Radio or smartphone alerts for real-time warnings.
- Prepare an emergency kit with flashlights, batteries, water, and essential medications.
- Avoid outdoor activities during the 2 PM–10 PM window and seek sturdy shelter at the first warning.
Here is the source article for this story: Quiet Sunday weather, severe storms expected Monday afternoon and evening