Heavy rain and thunderstorms forecast for Flintshire as Met Office issues two weather warnings

The recent calm weather across Flintshire is about to change, with the Met Office issuing two yellow weather warnings for thunderstorms and heavy rain over the weekend.

From Friday, the region is expected to face thunderstorms, with risks of lightning, gusty winds, hail, and heavy downpours.

Although not all areas within the warning zone will be impacted, the Met Office warns that sudden thunderstorms could bring up to 40mm of rain in under an hour, with isolated areas possibly receiving as much as 70mm.

Weather Warnings:

1. Yellow Warning for Thunderstorms (Saturday)
   • Timing: From 1am to 11.59pm on Saturday.
2. Yellow Warning for Heavy Rain (Sunday)From 12am to 11.59pm on Sunday.

⚠️ Yellow weather warning issued ⚠️

Heavy rain across Wales and central & southwest England

Sunday – 2359

Latest info 👉 https://t.co/QwDLMfRBfs

Stay #WeatherAware⚠️ pic.twitter.com/SuYbSaHUqQ

— Met Office (@metoffice) September 20, 2024

The threat of hail and frequent lightning strikes, particularly on Saturday afternoon and evening, further heightens the weather risk.

Heavy rain is forecast to persist into Sunday, with an additional yellow warning in place.

Showers and thunderstorms are predicted to merge into more widespread rainfall, especially across Wales and the Midlands.

Some areas could see 60-80mm of rainfall over 24 hours, raising concerns of flooding and travel disruptions.

Met Office Chief Meteorologist, Jason Kelly said: “Thundery downpours have developed across parts of southern England, and will last into Friday evening, bringing frequent lightning, gusty winds, hail, and spells of heavy rain. The risk of thunderstorms persists into the weekend with potentially longer spells of heavy rain for some along with a continued risk of hail and lightning accompanying the most intense storms. Parts of the Midlands, southern England and east Wales appear at greatest risk of seeing these conditions.

“The warnings cover the areas of the country most at risk of seeing thunderstorms but not everyone within a warning area will experience a thunderstorm. For many much of the time it will remain dry.”

Met Office Deputy Chief Meteorologist Dan Harris added: “The area of persistent and at times heavy rain that we are expecting to have developed by the end of Sunday will most likely continue for some parts of southern UK through at least the first part of Monday, before starting to clear eastwards. By this time however, confidence falls sharply in terms of both its exact location, and rainfall amounts. We are keeping a further warning for Monday under review, so please keep up to date with the latest forecast for your area.”