National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Excessive Rainfall through This Weekend

Several rounds of severe thunderstorms are ongoing and expected from the central and southern High Plains to the Southeast U.S. through Sunday. Large hail, damaging winds, and a few tornadoes will be possible. Thunderstorms may also bring areas of excessive rainfall which could bring flooding to parts of the aforementioned areas through Sunday. Read More >

 

WFO BIS SA Display-Short Term Winter Diagnostics
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SPC Mesoanalysis
925mb T
850mb T
SFC Tw
925-850mb Fn
850-700mb Fn
Mid Level L.R
Diff. Vort Advection
Jet Circulation
800-750bmb EPVg
650-500mb EPVg
Snow Squall Parameter
Dendritic Growth Zone Depth
Dendritic RH and Omega
Dendritic OPRH
MaxTw Lowest 400mb
P-Type

Dendritic Layer (Omega * PW * RH) OPRH

The product of vertical motion, precipitable water, and relative humidity in the dendritic growth layer. Values will be most negative (favorable for snow growth) where strong ascent coincides with saturation in the dendritic growth layer.