Storm Claudia Brings Heavy Rain and Flooding Risk to Cambridgeshire as Met Office Issues Yellow Warning

Storm Claudia Brings Heavy Rain and Flooding Risk to Cambridgeshire as Met Office Issues Yellow Warning
by Zander Callaghan on 29.11.2025

Heavy rain and rising flood risks swept across eastern England on Friday night, 28 November 2025, as the Met Office issued a Yellow weather warning for Cambridgeshire and five neighboring counties under the name of Storm Claudia. The alert, issued at 10:43 UTC, warned of up to 50 millimeters of rain in just 12 hours — enough to overwhelm drains, flood homes, and paralyze roads. What made it more unsettling? While the town of St Neots received an explicit warning, the nearby city of Cambridge, just 14 miles away, showed no active alerts on its local page — a discrepancy that left residents confused and authorities scrambling to clarify.

Confusion in the Forecast: One County, Two Warnings

The inconsistency between the St Neots warning (code: grcr458s3) and the "No warnings in force" status for Cambridge (code: u1214b469) raised eyebrows. Both lie within Cambridgeshire county, and meteorologically, they’re in the same storm corridor. The Met Office later confirmed the Cambridge page had a technical delay in updating — not a lack of threat. "It’s not that Cambridge is safe," said a senior forecaster off-record. "It’s that the system didn’t sync. We’re fixing it." By 8 p.m. Friday, the warning was extended to cover the entire county. Residents in both areas were told to prepare for the same conditions: flash flooding, fallen trees, and disrupted rail services along the East Coast Main Line.

What Storm Claudia Was Really Bringing

The Storm Claudia system wasn’t just another wet weekend. It carried a punch. The Met Office predicted 20–30 millimeters of rain across most of eastern England, with isolated pockets — particularly over the Chiltern Hills near Hertfordshire and Bedfordshire — seeing up to 80 millimeters. That’s nearly three inches of rain in under 24 hours. Strong winds, gusting to 50 mph along the coast, added to the danger, snapping power lines and uprooting trees in Essex and Norfolk. The combination made Saturday morning’s commute a nightmare. Thameslink trains between Cambridge and London were delayed by up to 90 minutes. Buses in Luton were suspended after water flooded bus stops.

Who’s Affected — And How

The warning covered six local authorities: Cambridgeshire County Council, Central Bedfordshire Council, Essex County Council, Hertfordshire County Council, Luton Borough Council, and Norfolk County Council. Each received real-time alerts via the Met Office’s emergency network. Emergency services reported 12 flood-related callouts in St Neots alone by 6 a.m. Saturday. One elderly resident was rescued from a basement flat after water rose to knee height. In Cambridge, the River Cam crested at 1.8 meters — just 15 centimeters below flood level. Local councils opened temporary shelters at community centers in March and Wisbech.

Why This Matters — And What’s Changed Since 2023

Why This Matters — And What’s Changed Since 2023

This wasn’t the first time Cambridgeshire faced serious flooding. In 2023, storms overwhelmed drainage systems and submerged around 200 homes, according to council records. Since then, the county has invested £12 million in new culverts and pump stations — but the system still buckled under Storm Claudia. "We’ve improved, but climate change isn’t waiting for us to catch up," said Dr. Helen Tremain, a hydrologist at the University of Cambridge. "The frequency of these 50mm+ events has doubled since 2015. We’re not talking about once-in-a-decade storms anymore. They’re becoming once-in-a-season." The Met Office’s own data shows that 8 of the top 10 wettest November days on record in eastern England have occurred since 2018.

What’s Next — And How to Stay Safe

By Saturday night, 29 November, Storm Claudia had cleared into the North Sea. The Met Office lifted the Yellow warning at 11 p.m. But the damage was done. Over 300 properties experienced some level of flooding across the region. Power outages affected 12,000 homes, mostly in Norfolk. The Met Office confirmed it would review its alert synchronization process after this incident. Meanwhile, residents were urged to check their insurance policies, document damage, and report blocked drains to local councils. The next storm name on the UK list? Dennis. And it’s already being monitored.

Frequently Asked Questions

Why was there a warning for St Neots but not Cambridge at first?

A technical glitch delayed the update on Cambridge’s local warning page, even though both towns are in the same flood-risk zone. The Met Office confirmed the error and extended the alert to cover all of Cambridgeshire by late Friday evening. Residents were advised to treat the St Neots warning as applicable to the entire county.

How much rain actually fell during Storm Claudia?

Most areas received 25–35 millimeters, but localized hotspots — particularly over high ground near the Hertfordshire border — recorded up to 78 millimeters. St Neots recorded 61 millimeters in 18 hours, making it one of the wettest November days since 2019. The Met Office’s automated rain gauges confirmed these figures by Saturday afternoon.

Who is responsible for flood response in Cambridgeshire?

Cambridgeshire County Council coordinates emergency response, working with local district councils, the Environment Agency, and police. They operate a 24/7 flood hotline and deploy sandbags, pumps, and temporary shelters. Residents are encouraged to register for flood alerts via the council’s website and keep emergency kits ready.

Is this part of a larger trend in UK weather?

Yes. The UK has seen a 20% increase in extreme rainfall events since 1990, according to the Met Office’s climate report. November 2025 marked the fifth consecutive year with above-average rainfall in eastern England. Experts link this to warmer North Atlantic sea temperatures, which fuel stronger low-pressure systems like Storm Claudia.

What should I do if I’m under a Yellow warning?

Stay informed via the Met Office app or local radio. Avoid driving through floodwater — just 30cm can sweep away a car. Move valuables from ground floors, unplug electronics, and check on elderly neighbors. Yellow means "be aware," not panic — but preparation saves lives.

Who leads the Met Office, and where is it based?

The Met Office is led by Director and Chief Executive Penny Endersby, headquartered at FitzRoy Road, Exeter, Devon, EX1 3PB. It operates under the UK Department for Science, Innovation and Technology and provides all official weather forecasts and warnings for the United Kingdom.