deep convection 2
DESCRIPTION
Deep convection 2. Wilfried Jacobs DWD Meteorological Training and Conference Centre. Purpose. To enable you to interpretate small and meso scale structures in radar images identification of relevant structures corresponding conceptual model ( related weather). Pre-requesites. - PowerPoint PPT PresentationTRANSCRIPT
Purpose
• To enable you to interpretate small and meso scale structures in radar images identification of relevant structures
corresponding conceptual model( related weather)
Content
1. Quiz based upon self study
2. Detailed investigations of radar images – (mainly super cells in relation to conceptual
models and "weather")• Intensities• Doppler
3. Quiz (time depending)
4. Questions & answers
Weak meso cyclone (06 June 2002, around 15 UTC, Feldberg / Black forrest)
Erroneous pixel? animations!
2 km
1 km
Ra
Rotation about 12m/s 6 km
Ra
Hail near Munich (23 June 2008, around 13 UTC)
"tilted tower", hail in the upper part
Tornado possible
Fine structures in super cells (dBz)
2 km
3 km
6 km
12 km
WER / inflow / strong echo gradient (horizontal)
hook echo
WER/ strong echo gradient (vertical)
Updraft
Outlow
FL : flanking line
RFD: rear-flank downdraft (often as Hook-echo)
FFD: Forward flank downdraft
Top: 12 km
FFD
RFD
FL
FL
Mini Tornado (15 June 2007, 16:15 UTC)
2 km radar Munich
R
2 km, radar HP
No clear rotation, line orientated shear stronger
R
Hazardous weather over Southwest Germany (30 May 2008, 01 UTC)
Gus
tline
3 kmR
R
Folding
Gusts at least: (please tick ):
< 20 m/s
< 30 m/s
> 35 m/s 2 km
2 km
6 km
FL : flanking line
RFD: rear-flank downdraft (often as Hook-echo)
FFD: Forward flank downdraft
Where do you find the outflowwith possibly precipitation hail (please mark ( ))?
Comming next
• "My Part deep convection 3"– Practical nowcasting
• Potential and weaknesses of data types (NWP, satellite, obs, radar) during nowcasting process
• Case studies among other during class room part