1. Jorgensen, D. P., 1984a: Mesoscale and convective-scale characteristics of mature Hurricanes. Part I: General observations by research aircraft. J. Atmos. Sci., 41, 1268-1285. Jorgensen, D. P., 1984a: Mesoscale and convective-scale characteristics of mature Hurricanes. Part I: General observations by research aircraft. J. Atmos. Sci., 41, 1268-1285. Jorgensen, D. P., 1984b: Mesoscale and convective-scale characteristics of mature Hurricanes. Part II: Inner core structure of Hurricane Allen (1980). J. Atmos. Sci., 41, 1287- 1311. Jorgensen, D. P., 1984b: Mesoscale and convective-scale characteristics of mature Hurricanes. Part II: Inner core structure of Hurricane Allen (1980). J. Atmos. Sci., 41, 1287- 1311.

4. General Observations by Research Aircraft

19. Summary The 10-dBZ contour of eyewall convection sloped radially outward with height, implying sloping updraft. The 10-dBZ contour of eyewall convection sloped radially outward with height, implying sloping updraft. Steeper slopes of eyewall convection were associated with stronger hurricanes with smaller eyes. Steeper slopes of eyewall convection were associated with stronger hurricanes with smaller eyes. The strongest vertical motion was located 1-6 km inward from the maximum tangential wind. The strongest vertical motion was located 1-6 km inward from the maximum tangential wind. The zone of maximum eyewall radar reflectivity was several kilometers radially outward from the radius of max. wind at low levels, but the locations were nearly coincided at mid to upper levels. The zone of maximum eyewall radar reflectivity was several kilometers radially outward from the radius of max. wind at low levels, but the locations were nearly coincided at mid to upper levels.

20. Summary The max. updraft location was always radially inward of the reflectivity maximum, with raindrops falling out of the updraft ar larger radius. The max. updraft location was always radially inward of the reflectivity maximum, with raindrops falling out of the updraft ar larger radius. Radius-height cross sections of radar reflectivity resembles those of Houze (1977) and Leary and Houze (1979) for squall-line and other mesoscale systems observed in GATE, despite different wind shear conditions. Radius-height cross sections of radar reflectivity resembles those of Houze (1977) and Leary and Houze (1979) for squall-line and other mesoscale systems observed in GATE, despite different wind shear conditions. Substantial amounts of stratiform precipitation, and a bright band, were evident outside the eyewall. Substantial amounts of stratiform precipitation, and a bright band, were evident outside the eyewall.

21. Inner Core Structure of Hurricane Allen (1980)

47. Summary Strong two-dimensionality in the radial direction is found for the mesoscale features near the hurricane inner core. Strong two-dimensionality in the radial direction is found for the mesoscale features near the hurricane inner core. These mesoscale features can be recognized by their temporal continuity and large spatial scale (10-40 km); convective-scale features are short lived and more three- dimensional. These mesoscale features can be recognized by their temporal continuity and large spatial scale (10-40 km); convective-scale features are short lived and more three- dimensional. Mean vertical velocity within inner core was 5-6 m/s; convective-scale updraft was 10-12 m/s. Mean vertical velocity within inner core was 5-6 m/s; convective-scale updraft was 10-12 m/s. In the eyewall, net upward mass fluxes were over 5 times larger than those in the GATE slow-moving convective line analyzed by Zipser et al. (1981), due to the increase in the area within the updrafts. In the eyewall, net upward mass fluxes were over 5 times larger than those in the GATE slow-moving convective line analyzed by Zipser et al. (1981), due to the increase in the area within the updrafts. The eyewall upward mass flux was 2-3 times larger than the downward mass flux in the eye. The eyewall upward mass flux was 2-3 times larger than the downward mass flux in the eye.