Storm chasing, forecasting, and radar — explained plainly.
In-depth, sourced guides written by Meso Editorial. Every article connects back to the real decisions chasers make in the field.
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How to Choose a Chase Target
Target selection is the single highest-leverage skill in storm chasing. Here is the framework experienced chasers actually use.
Storm Chasing Safety Guide
The chasers who do this for decades all share a few habits. Escape routes, positioning, and the disciplined "no" matter more than any gear.
What Is STP (Significant Tornado Parameter)?
STP combines CAPE, shear, helicity, and LCL into one number designed to flag environments capable of EF2+ tornadoes.
How to Read an SPC Outlook
The SPC Day 1 outlook is the single most important forecast graphic in American storm chasing. Here is how to read it without missing the nuance.
All articles
How to Choose a Chase Target
Target selection is the single highest-leverage skill in storm chasing. Here is the framework experienced chasers actually use.
Storm Chasing Safety Guide
The chasers who do this for decades all share a few habits. Escape routes, positioning, and the disciplined "no" matter more than any gear.
What Is STP (Significant Tornado Parameter)?
STP combines CAPE, shear, helicity, and LCL into one number designed to flag environments capable of EF2+ tornadoes.
How to Read an SPC Outlook
The SPC Day 1 outlook is the single most important forecast graphic in American storm chasing. Here is how to read it without missing the nuance.
What Is a Mesoscale Discussion?
Mesoscale Discussions (MDs) are the SPC's short-fuse heads-up that something is about to happen — usually a watch within the next 1–3 hours.
How to Read Reflectivity Radar
Hook echoes, bounded weak echo regions, three-body scatter spikes — reflectivity tells you a lot if you know the shapes.
AI for Storm Chasing
AI is not going to replace meteorologists. But it can absolutely consolidate a chaser's decision loop. Here is the honest take.
What Is CAPE?
Convective Available Potential Energy is the atmosphere's fuel gauge. Here is what those J/kg numbers actually mean on a chase day.
How to Read Velocity Radar
Velocity radar shows you wind, not rain. Learn to spot couplets, gate-to-gate signatures, and TDS markers like a chaser.
How Mesoscale Discussions Work
MDs are not random commentary. They follow a structured forecasting workflow inside SPC. Here is how that process produces what you read.
Best Storm Chasing Apps
A practical look at the apps experienced chasers actually keep on their home screen — and what each one is good (and bad) at.
Understanding Tornado Probabilities
A 10% tornado probability does not mean 'only 10% chance of a tornado.' Here is what those SPC numbers actually communicate.
How Tornado Watches Are Issued
A watch is not just 'might happen later.' It is a structured product with internal probabilities and PDS upgrades. Here is the process.
Understanding HRRR Model Guidance
The HRRR runs every hour at 3 km resolution and is the chaser's favorite short-fuse model. Here is how to read it without being fooled by it.
Tornado Watch vs Tornado Warning
Watches mean conditions are favorable. Warnings mean it is happening or imminent. Knowing the difference can save your life.
What Is CIN?
CIN — Convective Inhibition — is the lid on the atmosphere. Too much and nothing fires. Too little and you get a storm-cluttered mess.
What Is Storm Relative Helicity?
SRH measures how much the wind environment can spin an updraft. It is the parameter most directly tied to tornado potential.
What Is Effective Shear?
Effective shear is a smarter version of bulk shear that accounts for the storm's actual inflow layer. It is the modern standard for supercell forecasting.