Page History

Status Status:Ongoing analysisFinalised Material from: Ivan, Ervin, Linus

Discussed in the following Daily reports:

Show If

spacePermission	INTRA

http://intra.ecmwf.int/daily/d/dreport/2016/05/27/sc/

http://intra.ecmwf.int/daily/d/dreport/2016/05/30/sc/

http://intra.ecmwf.int/daily/d/dreport/2016/05/31/sc/

1. Impact

Excerpt
During the last days of May, western and central parts of Europe from France to Poland and Hungary was hit by events of severe convection and heavy rainfall.

A man was killed in southern Poland hit by lightning. In Paris, a birthday party in Parc Monceau was struck, injuring 11 people, eight of them children on Saturday afternoon, 28 May. Several are in a life-threatening condition. Three people were seriously hurt at a youth football match in Germany. Heavy rain caused some localized flooding as well. On 29 May to 30 May torrential rain hit south-western Germany and killed four people. Flash floods affected many businesses and homes. The worst affected region is the town of Braunsbach where floodwaters swept away two bridges as well. Dozens of homes there are at risk of collapse and must be evacuated. This investigation will focus on the event in Germany.

2. Description of the event

...

A nice animation of satellite images from EUMETSAT can be found here:

Severe weather reports from the European Severe Weather Database (ESWD) maintained by the European Severe Storm Laboratory (ESSL) are plotted below for the last few days of May.

Image AddedImage AddedImage AddedImage AddedImage Added

3. Predictability

3.1 Data assimilation

As we recently have started to assimilate humidity observations from a few Lufthansa aircraft, this is a good case to monitor the use of this data.The plot below shows the the observation statistics for humidity observations from aircrafts for the lower part of the troposphere. The box is centred on Frankfurt to get observations from ascending and descending flights.

3.2 HRES

HRES forecasts and observations from precipitation valid 29 May 06z- 30 May 06z. The last forecast (29 May 00z) captured the region of maximum precipitation.

...

The plots below show EFI an SOT for CAPE and CAPESHEAR valid 29 May.