Re-analysis of a high-end severe weather event on 18 August
1986.

a 2013

Re-analysis of a high-end severe weather event on 18 August 1986.

PÚČIK, Tomáš; Petr ZACHAROV; Martin SETVÁK; Zbyněk SOKOL; Zbyněk ČERNOCH et al.

Základní údaje

Originální název

Re-analysis of a high-end severe weather event on 18 August 1986.

Autoři

PÚČIK, Tomáš; Petr ZACHAROV; Martin SETVÁK; Zbyněk SOKOL a Zbyněk ČERNOCH

Vydání

7th European Conference on Severe Storms, 2013

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Finsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Označené pro přenos do RIV

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

supercell hailstorm reanalysis model environment

Příznaky

Mezinárodní význam

Změněno: 10. 6. 2013 11:02, Mgr. Tomáš Púčik, Ph.D.

Anotace

V originále

On this date, an extraordinary severe weather event was observed over the Czech Republic and some other countries (e.g. Germany or Northern Italy) featuring intense hailstorms. In case of the Czech Republic, a single supercellular thunderstorm managed to produce a 230 km long hail swath with many reports of very large hail (up to 12 cm in diameter) and severe wind gusts. This resulted in an extreme damage with some settlements losing every single roof, and also several casualties. Even though a relatively thorough analysis has been done shortly after the event (Pavlik - Kakos - Strachota, 1988), little has been known in those times about the supercell or large hail prediction. Thus, we would like to shed more light on the environmental conditions (using the ingredient-based methodology), which allowed for perhaps the most intense hailstorm in the modern history of the Czech Republic. Large scale conditions will be assessed using the ECMWF reanalysis data with the horizontal resolution of 0.5 degrees. More regional and detailed analysis will be based on the run of COSMO model featuring 50 vertical levels and a horizontal resolution of 2.8 km. This case became well-known also from the satellite perspective, because hailstorm exhibited very significant cold-U feature with a "plume" of cirrus extending over its "warm" interior part (Setvak - Doswell, 1991). In the light of a new research that has been done on the storm-top characteristics, we return to this case and discuss its significance. Eventually, this study should mostly serve as a re-analysis of the event from the forecaster point of view, contrasting the low and high-resolution model output and their ability to reproduce severe storm environment. We also point to the nowcasting possibilities (spatial-temporal resolution of the data) that were available at that time versus the current situation.

Návaznosti

MUNI/A/0902/2012, interní kód MU

Název: Globální environmentální změny v krajinné sféře Země a jejich dopady (Akronym: GlobE)

Investor: Masarykova univerzita, Globální environmentální změny v krajinné sféře Země a jejich dopady, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

Citovat

PÚČIK, Tomáš; Petr ZACHAROV; Martin SETVÁK; Zbyněk SOKOL a Zbyněk ČERNOCH. Re-analysis of a high-end severe weather event on 18 August 1986. In 7th European Conference on Severe Storms. 2013.

@proceedings{1110888,
   author = {Púčik, Tomáš and Zacharov, Petr and Setvák, Martin and Sokol, Zbyněk and Černoch, Zbyněk},
   booktitle = {7th European Conference on Severe Storms},
   keywords = {supercell hailstorm reanalysis model environment},
   language = {eng},
   title = {Re-analysis of a high-end severe weather event on 18 August 1986.},
   url = {http://www.essl.org/ECSS/2013/programme/abstracts/papers.html#A75},
   year = {2013}
}

TY  - CONF
ID  - 1110888
AU  - Púčik, Tomáš - Zacharov, Petr - Setvák, Martin - Sokol, Zbyněk - Černoch, Zbyněk
PY  - 2013
TI  - Re-analysis of a high-end severe weather event on 18 August 1986.
KW  - supercell hailstorm reanalysis model environment
UR  - http://www.essl.org/ECSS/2013/programme/abstracts/papers.html#A75
N2  - On this date, an extraordinary severe weather event was observed over the Czech Republic and some other countries (e.g. Germany or Northern Italy) featuring intense hailstorms. In case of the Czech Republic, a single supercellular thunderstorm managed to produce a 230 km long hail swath with many reports of very large hail (up to 12 cm in diameter) and severe wind gusts. This resulted in an extreme damage with some settlements losing every single roof, and also several casualties. Even though a relatively thorough analysis has been done shortly after the event (Pavlik - Kakos - Strachota, 1988), little has been known in those times about the supercell or large hail prediction. Thus, we would like to shed more light on the environmental conditions (using the ingredient-based methodology), which allowed for perhaps the most intense hailstorm in the modern history of the Czech Republic. Large scale conditions will be assessed using the ECMWF reanalysis data with the horizontal resolution of 0.5 degrees. More regional and detailed analysis will be based on the run of COSMO model featuring 50 vertical levels and a horizontal resolution of 2.8 km. This case became well-known also from the satellite perspective, because hailstorm exhibited very significant cold-U feature with a "plume" of cirrus extending over its "warm" interior part (Setvak - Doswell, 1991). In the light of a new research that has been done on the storm-top characteristics, we return to this case and discuss its significance. Eventually, this study should mostly serve as a re-analysis of the event from the forecaster point of view, contrasting the low and high-resolution model output and their ability to reproduce severe storm environment. We also point to the nowcasting possibilities (spatial-temporal resolution of the data) that were available at that time versus the current situation.
ER  -

PÚČIK, Tomáš; Petr ZACHAROV; Martin SETVÁK; Zbyněk SOKOL a Zbyněk ČERNOCH. Re-analysis of a high-end severe weather event on 18 August 1986. In \textit{7th European Conference on Severe Storms}. 2013.

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