<\/a><\/a>BURZA SUPERKOM\u00d3RKOWA Z DESZCZEM NAWALNYM 8 WRZE\u015aNIA 2022 r. W REJONIE GORZOWA WIELKOPOLSKIEGO<\/span>
\nSupercell thunderstorm with heavy rain on September 8, 2022 in the area of Gorz\u00f3w Wielkopolski
\n<\/span><\/span><\/p>\n

Jakub Soroka<\/span><\/span><\/a>, Patryk Matczak<\/span><\/span>
\n<\/em>Przegl\u0105d Geofizyczny (2024) vol. 69, iss. 1-2, pp. 25-46<\/em><\/span>
\nhttps:\/\/doi.org\/10.32045\/PG-2024-045<\/span><\/p>\n

Tekst \/ Text<\/a><\/span><\/p>\n

Streszczenie
\n<\/strong>W artykule opisano przypadek deszczu nawalnego zwi\u0105zanego z d\u0142ugotrwa\u0142\u0105, quasi-stacjonarn\u0105 superkom\u00f3rk\u0105 burzow\u0105, kt\u00f3ra wyst\u0105pi\u0142a nad ranem 8 wrze\u015bnia 2022 r. w rejonie Gorzowa Wielkopolskiego. Warunki atmosferyczne charakteryzowa\u0142y si\u0119 w\u00f3wczas spor\u0105 niestabilno\u015bci\u0105 atmosfery oraz du\u017c\u0105 zawarto\u015bci\u0105 wilgoci w powietrzu, a tak\u017ce niewielkim przep\u0142ywem powietrza. Istotne dane minutowe ukaza\u0142y rzadki przypadek zwi\u0105zany z gwa\u0142townymi nap\u0142ywami cieplejszego powietrza podczas trwania burzy o symptomach zbli\u017conych do tzw. zjawiska heat burst. Przy opadzie trwaj\u0105cym niespe\u0142na 3,5 godz. sumy opad\u00f3w osi\u0105gn\u0119\u0142y od 144,9 mm w Gorzowie (stacja IMGW-PIB) do 218 mm w Wawrowie (dane nieoficjalne). Najwy\u017csza dobowa suma opad\u00f3w oszacowana przy pomocy reanalizy RainGRS Clim wyst\u0105pi\u0142a w rejonie Czechowa i wynios\u0142a 237 mm. Zarejestrowane sumy i nat\u0119\u017cenie opad\u00f3w by\u0142y jednymi z najwi\u0119kszych w historii pomiar\u00f3w jakie odnotowano na obszarze Polski nizinnej. Rozw\u00f3j superkom\u00f3rki burzowej przypad\u0142 na wczesne godziny poranne, czyli poza okresem typowego wyst\u0119powania burz w przebiegu dobowym. Na intensyfikacj\u0119 rozwoju burzy wp\u0142yw mog\u0142o mie\u0107 wzmocnienie orograficzne w obr\u0119bie kraw\u0119dzi mi\u0119dzy wysoczyzn\u0105 i dolin\u0105 rzeki Warty. Wyst\u0105pienie deszczu nawalnego spowodowa\u0142o pow\u00f3d\u017a b\u0142yskawiczn\u0105 i olbrzymie zniszczenia w lokalnej infrastrukturze, zw\u0142aszcza w so\u0142ectwach Czech\u00f3w i Wawr\u00f3w. <\/span><\/p>\n

S\u0142owa kluczowe:<\/strong> deszcz nawalny, opady atmosferyczne, burza, pow\u00f3d\u017a b\u0142yskawiczna, RainGRS, Gorz\u00f3w Wielkopolski<\/span><\/p>\n

Abstract
\n<\/strong>A heavy rainfall episode associated with a long-lived, quasi-stationary supercell thunderstorm occurred in the Gorz\u00f3w Wielkopolski area (western Poland) on September 8, 2022. The atmospheric environment was saturated with moisture and instability with relatively weak air flow. Precise synoptic 1-minute data showed a very rare event associated with sudden advection of warm air during a thunderstorm, closely resembling the heat burst phenomenon. The highest rainfall amounts were recorded in Gorz\u00f3w Wielkopolski (144.9 mm) and Wawr\u00f3w (218 mm, unofficial data). Based on the RainGRS Clim reanalysis, a maximum of daily total precipitation was estimated at 237 mm in Czech\u00f3w village. It was one of the most extreme precipitation events in the Polish lowlands. The supercell thunderstorm developed unusually in the early morning hours, outside of the period of maximum thunderstorm activity. It is possible that the edge between the Gorzow highlands and the Warta river valley favoured orographically forced convective precipitation. As a consequence of this unprecedented event, flash floods and destruction of local technical infrastructure were observed, particularly in Czech\u00f3w and Wawr\u00f3w villages.<\/span><\/p>\n

Keywords<\/strong>: heavy rainfall, precipitation, thunderstorm, flash flood, RainGRS, Gorz\u00f3w Wielkopolski<\/span><\/p>\n

 <\/p>\n

Article is licensed under <\/span>CC BY 4.0<\/span><\/strong><\/a><\/p>\n

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