1990s Cyclones: phase evolution

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Year
Date
Name
Continent/Ocean
Description/Example
Diag #1: -VTL Vs. B
Diag #2: -VTL Vs. -VTU
1990 24 July-
5 August
Hurricane Bertha North Atlantic Example of a cold-core cyclone developing warm core structure (into a hurricane) -- "tropical transition" of an extratropical cyclone. ECMWF:  Image Anim ECMWF:  Image Anim
1990 3-14 August Tropical Storm Edouard North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1990 27 August-
7 September
Hurricane Gustav North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1990 10-17 September Hurricane Isidore North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1990 5-20 Octobe Hurricane Lili North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1990 9-14 October Tropical Storm Marco North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1991 16-27 August Hurricane Bob North Atlantic Small but intense hurricane whose warm-core structure is greatly underestimated. Extratropical transition is diagnosed 18-24hr too early since the warm-core structure is poorly resolved. ECMWF:  Image Anim ECMWF:  Image Anim
1991 5-15 September Hurricane Claudette North Atlantic Category 4 hurricane whose necessarily strong warm-core structure is completely unresolved by these gridded analyses. ECMWF:  Image Anim ECMWF:  Image Anim
1991 8-13 September Tropical Storm Erika North Atlantic Another example of the complete lack of a warm-core structure within the analyzed TC. Does not represent the TC evolution realistically. ECMWF:  Image Anim ECMWF:  Image Anim
1991 15-20 October Tropical Storm Fabian North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1991 28 October-
3 November
Halloween "Perfect" Storm North Atlantic Cold core cyclone that absorbs Hurricane Grace, moves over Gulf Stream, and develops warm-core structure. ECMWF:  Image Anim ECMWF:  Image Anim
1992 18-28 August Hurricane Andrew North Atlantic Intense hurricane whos warm core is poorly resolved by the reanalyses, but yet shows a weak extratropical transition just prior to being absorbed. ERA40:    Image Anim ERA40:    Image Anim
1992 20 September-
4 October
Hurricane Bonnie North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1992 22-29 September Hurricane Charley North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1992 27 September-
6 October
Tropical Storm Earl North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1992 22-30 October Hurricane Frances North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1992 20-25 August Hurricane Lester Eastern Pacific . ERA40:   Image Anim ERA40:   Image Anim
1992 25-28 August Nondeveloping North Atlantic . ERA40:   Image Anim ERA40:   Image Anim
1993 12-17 March Superstorm North America Extreme baroclinic cyclogenesis that later acquired warm-core characteristics over the northeast Atlantic. NCAR:     Image Anim NCAR:     Image Anim
1993 31 August-
6 September
Hurricane Emily North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1993 8-17 September Hurricane Floyd North Atlantic Example of the complete lack of a warm-core tropical cyclone phase within the gridded reanalyses. Illustrates well the need for improved data assimilation methods and/or bogussing methods to improve the warm-core signal within gridded analyses of tropical cyclones. ECMWF:  Image Anim ECMWF:  Image Anim
1993 18-21 September Hurricane Harvey North Atlantic . ECMWF:  Image Anim ECMWF:  Image Anim
1995 28 August-
14 September
Luis North Atlantic . ERA40:   Image Anim ERA40:   Image Anim