The Met Office has issued a yellow weather warning for heavy rain in Crawley, West Sussex, starting at 06:00 on Wednesday, February 18, 2026. Forecasters say the downpours could lead to surface water flooding and travel disruptions across the town and surrounding areas until the warning ends at 08:00 on Thursday, February 19, 2026.
Rainfall totals are expected to reach between 10mm and 20mm across the region, while some areas near the coast could see up to 30mm. These heavy spells will be accompanied by strong east to northeasterly winds, which may make driving conditions more difficult for local residents.
According to the Environment Agency, Crawley is at specific risk of flooding from the River Mole and its smaller streams, including the Gatwick Stream and Ifield Brook. The Upper Mole Flood Alleviation Scheme helps protect the area, but the ground is already very wet following a high number of rainy days so far this year.
Commuters using train services should check for delays, particularly on routes between Three Bridges and Horsham which have flooded in the past. High-traffic roads like the M23 near Gatwick Airport are also at risk of closures if surface water builds up during the storm.
Local officials advise residents to monitor weather updates and allow extra time for any necessary journeys through Thursday morning. The combination of heavy rain and wind is expected to cause the most significant issues on Wednesday afternoon and evening.
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