The essentials
Pas-de-Calais faces an orange rain-flood alert Saturday evening as storm Boelo forecasts 30 to 50 mm of rain.
Pas-de-Calais has been placed under an orange rain-flood alert for Saturday evening. The alert relates to rainfall from storm Boelo, which is forecast to bring 30 to 50 mm of rain to the area, according to Météo-France.
Storm Boelo followed storm Austen within less than 48 hours, so the two systems are arriving in close succession.
The available reports do not specify which towns or communes within the department are expected to be most affected, or how long the rainfall is expected to last. Rainfall figures are forecasts, and actual totals may differ across different parts of the department.
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Storm Boelo's 30 to 50 mm rain forecast drives Pas-de-Calais alert
This perspective centres on the forecast itself. The 30 to 50 mm range describes what meteorologists expect for Saturday evening, not a measured total. Actual rainfall in different parts of the department may fall above or below that range, and the available reports do not map those differences.
Boelo arrives less than 48 hours after Austen, with Pas-de-Calais on alert
Storm Boelo followed storm Austen within less than 48 hours, placing the two events close together in time. Pas-de-Calais is now under an orange rain-flood alert for Saturday evening, so the department faces a new weather hazard shortly after the previous storm. The reports do not say whether the two storms have had combined effects on the area.