What is a convergence line, and why can it focus thunderstorms along the Valencian coast?
When low-level winds come together, storms can repeatedly form along a narrow strip. Spain’s Valencian coast offers a good place to see how this works.
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When low-level winds come together, storms can repeatedly form along a narrow strip. Spain’s Valencian coast offers a good place to see how this works.
Read the articleFrom the science to the weather map.
When low-level winds come together, storms can repeatedly form along a narrow strip. Spain’s Valencian coast offers a good place to see how this works.
Parts of Mexico and Central America experience a midsummer dip in rainfall known as the canícula. Its timing and strength depend on location and year.
Moisture from the Gulf of California and rising air along the Sierra Madre Occidental shape the summer storm season in northwestern Mexico.

GFS forecast 139.5 mm of rain for Intipucá while several other models predicted almost none. A real Meteorix example of forecast uncertainty.
The axis of a tropical wave can cross an island in the morning and the downpours arrive hours later. To understand the timing, follow both the wind and the clouds.
Yesterday you could see a cluster of thunderstorms on satellite imagery. Today the same cluster has a label, 92L. What changed? The code tells you how forecasters are tracking the disturbance. Its intensity is a separate question.
A wind circulation can stretch across several countries between the Caribbean and the Pacific. To see which places bear the brunt of the rain, look for the river basins that one rainband after another passes over.
When a low-pressure system deepens unusually quickly, meteorologists call it explosive cyclogenesis. Learn what they measure, why latitude matters and how to track it on a pressure map.
Cloud height and shape can help you interpret a changing sky. Learn to recognise the main cloud layers and read the Meteorix cloud cover map.
Some cut-off lows pass almost unnoticed. Others help produce extraordinary rainfall. The difference depends partly on what happens below them.
Weather science explained in everyday language.
Read the research and forecasts behind each article.
Explore the related Meteorix map after reading.