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Ultra-High Res Sandy Videos Gallery

  • Cloud-Top Temperature
  • Radar Reflectivity
  • Horizontal Wind Speed
  • Potential Temperature
  • Air-Parcel Trajectories
  • Hurricane Sandy Air-Parcel Trajectories

Cloud-Top Temperature

WRF-ARW cloud-top temperature overlayed with 1000m horizontal wind vectors.  Key features include: signature of dramatic anticyclonic outflow aloft on the western flank of Sandy and lower-tropospheric cyclonic cloud rotation and intermittent cold cloud top convective activity near inner core and outer cold air encirclement.

Radar Reflectivity

WRF-ARW maximum radar reflectivity overlaid with 1000m horizontal wind vectors.  Key features:  Maintenance of convection near the central core, and widespread convective and stratiform precipitation along the encircling outer wind maximum on the west and southwest flanks of Sandy.

Horizontal Wind Speed

WRF-ARW 1000m wind speed with horizontal wind vectors.  Key features include: well-defined wind maximum (greater than 40 m/s) encircling Sandy's inner core persistent throughout the simulation; development of well-defined outer radius wind maximum conncurrent with cold air encirclement.

Potential Temperature

WRF-ARW 1000m potential temperature with horizontal wind vectors.  Key features include:  enhancement of Sandy's inner warm-core temperature when passing over the axis of the Gulf Stream; cyclonic encirclement of the cold continental polar air.  Both processes increased the baroclinicity and wind speeds surrounding Sandy's warm inner core and decreased the central pressure preceding landfall.

Air-Parcel Trajectories

WRF-ARW air-parcel trajectories, seeded at 1000m every 4h, beginning at 1200 UTC 26 October 2012. Key features include: rapid ascent of air parcels to the tropopause near the inner core and along the outer radius of Sandy and its western flank. The potential temperature transition from cold to warm indicates the latent heating as parcels ascend with the storm's inner core.

Hurricane Sandy Air-Parcel Trajectories

WRF-ARW air-parcel trajectories, seeded at 1000m every 4h, beginning at 1200 UTC 26 October 2012. Key features include: rapid ascent of air parcels to the tropopause near the inner core and along the outer radius of Sandy and its western flank. The potential temperature transition from cold to warm indicates the latent heating as parcels ascend with the storm's inner core.

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