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Maximum Estimated Size of Hail (MESH)

Maximum Estimated Size of Hail (MESH)

Short Description

Estimate of the maximum hail size that can be expected. This product can be accessed via the NWS SGN or on the MRMS Operational Product Viewer

Subproducts

None

Primary Users

NWS: WFO, CWSU, AWC, SPC

Input Sources

Severe Hail Index (SHI)

Resolution

Spatial Resolution: 0.01° Latitude (~1.11 km) x 0.01° Longitude (~1.01 km at 25°N and 0.73 km at 49°N)

Temporal Resolution: 2 minutes

Product Creation

MESH is calculated by:

where SHI is the “Severe Hail Index."

 

MESH units as displayed in AWIPS: Inches

MESH base units (used in calculations): mm 

Technical Details

Latest Update: MRMS Version 10

References

Witt, A., M. D. Eilts, G. J. Stumpf, J. T. Johnson, E. D. Mitchell, and K. W. Thomas, 1998: An enhanced hail detection algorithm for the WSR-88D. Wea. Forecasting, 13, 286-303.