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Friday night washout: it will be very wet and potentially Noah’s Ark territory
Ben Hamilton
July 9th, 2021
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Local downpours could result in some areas getting a total of 50 mm over the next 24 hours
It’s going to get slippery on Strøget and the rest of the city (photo: Tony Webster/Flickr)
Tis the season for weather warnings. While May and June tend to be dry and sunny, July and August are more humid, wet and wild, and there have already been a handful issued by the national forecaster DMI this month.
Today’s is different though, as DMI is adamant the whole country is in the firing line for heavy downpours and thunderstorms, which could seriously disrupt plans to go out this Friday evening.
DMI is certain the country can expect a minimum of 25 mm of rain over the next 24 hours, adding: “In addition to heavy rain, there is also a risk of local cloudbursts!”
Flooding could occur in some areas. See the video below of how much rain fell in a downpour on Vesterbro in July 2011!
No normal warning
DMI isn’t normally so certain. Its weather warnings often give its forecasters the chance to put their hands up, hide behind a symbol that looks like an Asterix swear word, and fudge their figures – a good way to take the day off at home and not go out into the rain.
Normally, in such cases, your local area might escape a downpour – in which more than 15 mm of rain can fall in 30 minutes – and end up only getting mild precipitation and remarks like: “I don’t know what all the fuss was about.”
The randomness of the downpours make them hard to predict, but today looks likely to be different.
Very rainy evening
This time around, some degree of precipitation is certain.
For example, in the Capital Region between 21:00 and 22:00, DMI forecasts there will be 5 mm of rain – no ambiguous symbols this time.
The Norwegian forecaster, yr.no, concurs there will be rain in the area: a minimum of 0.2 mm and a maximum of 14 mm between 20:00 and 21:00, followed by another potential 20 mm over the course of the day.
Pouring down through the night
For Jutland, the chance of sudden rain will begin from 11:00 this morning, lasting until around 19:00.
For the rest of the country, the critical period begins at 18:00, and while the Capital Region can expect rain into the early hours, Southern Denmark could wake up to it as well.
DMI attributes the rainy weather to a low pressure system arriving from the south and another system arriving from across the Baltic Sea and Poland.
Funen will get the worst of it, apparently.
Something like this? (screenshot from YouTube)
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