1. What happens with the weather in the vicinity of the overshooting top?
Petra Mikuš, Nataša Strelec Mahović
Meteorological and Hydrological Service, Croatia

2. automatic station
Weiz, Austria
temperature
humidity
max. wind
precipitation

3. automatic station
Karlovac, Croatia
humidity
temperature
precipitation
max. wind

4. RESULTS: 2010 warm season (May – September) analyzed
> 900 matching OT-station pairs found

5. Lightning
All lightnings from May to September over Croatia and neighbouring countries
– LINET data used
all lightnings occuring ± 5 minutes from the time of the overshooting
lightnings within 0.05° from the OT pixel

6. Total lightning (IC + CG)

7. 2009:Total lightning (IC+CG)

12. May - September 2009: CG Lightning Polarity(%) May June July August
M-S
negative 69 76 71 72
positive 31 24 29 28
Lightning in the vicinity of the OT
Polarity(%)
May
June
July
August
September
M-S
negative 64 76 67 60 82 70
positive 36 24 33 40 18 30

13. May - September 2009: IC Lightning Polarity(%) May June July August
M-S
negative 58 52 46 49 54 51
positive 42 43
Lightning in the vicinity of the OT
Polarity(%)
May
June
July
August
September
M-S
negative 57 49 46 48 54 51
positive 43 52

15. May - August 2010: CG Lightning Polarity(%) May June July August M-A
negative 72 70 69 71
positive 28 30 31 29
Lightning in the vicinity of the OT
Polarity(%)
May
June
July
August
M-A
negative 70 67 60 71 68
positive 30 33 40 29 32