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Atmospheric Favorability for Severe Weather
Current Radar Loop Wind Threat Image

Mouseover other forecast hours in the images below for Wind AFS Threats

Choose other AFS parameters by clicking on the table column below
Combined WRF-NMM WRF-ARW NAM12 RUC13 Hail Wind Tornado


The Atmospheric Favorability for Severe Weather (AFS) are based on model data (RUC13, WRFnmm, WRFarw, NAM12), showing the areas most and least favorable to support strong thunderstorm development. AFS are color-coded according to the threats areas: None(Gray), Low(Yellow), Medium(Orange), High(Red), and Extreme(Purple). The hourly AFS images are derived from two techniques: from the Supercell Composite Parameter, and from the juxtaposition of Boundary Layer Convergence (BLC) and CAPE.

Image Creation Time: 08:35 AM EDT FRI OCT 24 2014

AFS Grids created using the following parameters:

Models Included:
WRFNMM WRFARW RUC13 NAM12
Model Scheme:
COMPOSITE
Significant Severe Storm Formula:
NONE
Cape:
SFC-BASED
Wind Convergeance:
BOUNDARY LAYER
Dynamic Forcing:
NONE
Potential Vorticity:
NONE
Inhibitors:
NONE
Cape Threshold:
1500
LCL Threshold:
800
High Threat Threshold:
2


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Page last modified: July 10, 2012

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