Severe Thunderstorm Warning Issued for Oslo: Heavy Rain and Lightning Expected Tomorrow Afternoon

Thunderstorm over Oslo city center at the end of June.

Photo: Beate Oma Dahle / NTB

The Meteorological Institute has issued a warning for heavy rain starting tomorrow afternoon. – Locally, very heavy rain showers are expected.

“For parts of Eastern Norway, very heavy rain showers are expected locally. There will be a large local variation in intensity, and the weather may change rapidly,” according to the Meteorological Institute.

The warning particularly applies from 2 PM to 9 PM. During this time, over 20 millimeters of precipitation is possible in a short period.

– On Tuesday afternoon and evening, very heavy rain showers are expected in your area. There will be large local variations in intensity, and the weather can change rapidly. Thunderstorms are expected in connection with the showers, reports the on-duty meteorologist, Per Egil Haga.

He confirms that there is a risk of lightning and thunder. – People should stay away from open water, swimming, and boats when there is lightning and thunder, he warns.

When it rained heavily in June, water poured down into the entrance to the subway at Jernbanetorget.

Photo: Cornelius Poppe / NTB

Risk of Surface Water

Heavy rain is intense rainfall of short duration. Often it can be dry in one place while it pours down just nearby. Heavy rain will develop rapidly over a short time and move quickly.

Here are some consequences:

• Risk of surface water in built-up areas, local flooding, changes in streams and river courses, landslides, and flooding where the rain showers hit.
• Risk of closed roads and/or surface water near streams and river courses.
• Locally difficult driving conditions due to surface water and risk of hydroplaning.