High Temporal Resolution Analyses with GOES-16 Atmospheric Motion Vectors of Mesovortex Rapid Intensification in Subtropical Cyclone Henri (2021)
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields



Document Data
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page


High Temporal Resolution Analyses with GOES-16 Atmospheric Motion Vectors of Mesovortex Rapid Intensification in Subtropical Cyclone Henri (2021)

Filetype[PDF-10.82 MB]

Select the Download button to view the document
This document is over 5mb in size and cannot be previewed


  • Journal Title:
    Weather and Forecasting
  • Personal Author:
  • NOAA Program & Office:
  • Description:
    Four-dimensional COAMPS Dynamic Initialization (FCDI) analyses with high temporal and spatial resolution GOES-16 Atmospheric Motion Vectors (AMVs) are utilized to analyze the development and rapid intensification of a mesovortex about 150 km to the south of the center of the subtropical cyclone Henri (2021). During the period of the unusual Henri westward track along 30°N, the FCDI z = 300 m wind vector analyses demonstrate highly asymmetric wind fields and a horse-shoe shaped isotach maximum that is about 75 km from the center, which are characteristics more consistent with the definition of a subtropical cyclone than of a tropical cyclone. Furthermore, the Henri westward track and the vertical wind shear have characteristics resembling a Rossby Wave Breaking conceptual model. The GOES-16 mesodomain AMVs allow the visualization of a series of outflow bursts in space and time in association with the southern mesovortex development and intensification. Then the FCDI analyses forced by those thousands of AMVs each 15 minutes depict the z = 13,910 m wind field responses and the subsequent z = 300 m wind field adjustments in the southern mesovortex. A second northern outflow burst displaced to the southeast of the main Henri vortex also led to a strong low-level mesovortex. It was when the two outflow bursts joined to create an eastward radial outflow all along the line between them that the southern mesovortex reached maximum intensity and maximum size. In contrast to the numerical model predictions of intensification, outflow from the mesovortex directed over the main Henri vortex led to a decrease in intensity.
  • Keywords:
  • Source:
    Weather and Forecasting (2023)
  • DOI:
  • ISSN:
  • Format:
  • Publisher:
  • Document Type:
  • Rights Information:
  • Compliance:
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at repository.library.noaa.gov

Version 3.26.1