wv images and rapid cyclogenesis cases nuno moreira ([email protected]) instituto de...

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WV images and Rapid WV images and Rapid cyclogenesis cyclogenesis CASES CASES Nuno Moreira ([email protected]) Nuno Moreira ([email protected]) Instituto de Meteorologia, Lisboa, Portugal Instituto de Meteorologia, Lisboa, Portugal 2003 2003

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WV images and Rapid cyclogenesisWV images and Rapid cyclogenesisCASES CASES

Nuno Moreira ([email protected])Nuno Moreira ([email protected])Instituto de Meteorologia, Lisboa, PortugalInstituto de Meteorologia, Lisboa, Portugal

20032003

Rapid Cyclogenesis (bomb) - Rapid Cyclogenesis (bomb) - UK UK

23(0630) - 24(1230) DEC97 23(0630) - 24(1230) DEC97

Cyclogenesis UK - IPV Cyclogenesis UK - IPV (315K)(315K)

24/0000(WV) ; 24/0000(WV) ; H12H12(ECMWF)(ECMWF)

Hoskins et Hoskins et al (1985)al (1985)

Cyclogenesis UK - VPI Cyclogenesis UK - VPI (315K)(315K)

24/0000 + 24/0000 + H12H12 ; ; ANAN (ECMWF)(ECMWF)

Cyclogenesis UK - VPI Cyclogenesis UK - VPI (315K)(315K)

24/1230 + 24/1230 + H24H24 ; ; ANAN (ECMWF)(ECMWF)

Cyclogenesis UK - Cyclogenesis UK - TropopauseTropopause

24/0000 + 24/0000 + H12H12 ; ; ANAN (ECMWF)(ECMWF)

Cyclogenesis UK - Cyclogenesis UK - TropopauseTropopause

24/1230 + 24/1230 + H24H24 ; ; ANAN (ECMWF)(ECMWF)

Rapid Cyclogenesis Rapid Cyclogenesis (France 1999 - Christmas)(France 1999 - Christmas)

... With different upper level “signature” ... With different upper level “signature”

Rapid Cyclogenesis Rapid Cyclogenesis (France 1999 - Christmas)(France 1999 - Christmas)

Max wind = 191 ktMax wind = 191 kt Max wind = 157 ktMax wind = 157 kt

Rapid Cyclogenesis Rapid Cyclogenesis (France 1999 - Christmas)(France 1999 - Christmas)

325 K <-> 295 K325 K <-> 295 K 325 K <-> 305 K325 K <-> 305 K

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NOAA, 1991: Water vapor imagery – Interpretation and applications to weather analysis and forecasting. NOAA Technical report NESDIS 57, National Oceanic and Atmospheric Admnistration, Washington, 213 pp.

Prates, F., 1996: Utilização de cartas de vorticidade potencial isentrópica no diagnóstico dos processos de ciclogénese. Nota Técnica. Instituto de Meteorologia.

Romero, R., 2000: Sensitivity of a heavy rain producing Western Mediterranean cyclone to embedded potencial vorticity anomalies. Submetido ao Quarterly Journal of the Royal Meteorological Society.

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