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Products Guide

Rotation Tracks

Rotation Tracks

Short Description

Maximum Azimuthal Shear in a specified layer for a specified time period.

Subproducts

Low-Level (0–2 km AGL) Rotation Tracks

  • 30 minute
  • 60 minute
  • 120 minute
  • 240 minute
  • 360 minute
  • 1440 minute

Mid-Level (3–6 km AGL) Rotation Tracks

  • 30 minute
  • 60 minute
  • 120 minute
  • 240 minute
  • 360 minute
  • 1440 minute

Primary Users

NWS: WFO, SPC

Other: FEMA, Local EM, Red Cross

Input Sources

Low-Level Azimuthal Shear (0–2 km AGL) or Mid-Level Azimuthal Shear (3–6 km AGL)

Resolution

Spatial Resolution: 0.005° latitude (~555 m) x 0.005° longitude (~504 m at 25°N and 365 m at 49°N)

Temporal Resolution: 2 minutes

Product Creation

Azimuthal Shear Tracks are computed by taking the maximum value of Azimuthal Shear over the specified time period.

Technical Details

Latest Update: MRMS Version 11.5

See the Azimuthal Shear product for technical information.

References

Lakshmanan, V., M. Miller, T. Smith, 2013: Quality control of accumulated fields by applying spatial and temporal constraints. J. Atmos. Oceanic Technol., 30, 745-757.

Miller, M. L., V. Lakshmanan, and T. Smith, 2013: An automated method for depicting mesocyclone paths and intensities. Wea. Forecasting, 28, 570-585.