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Storm of the Month
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Several storms came to our attention in this month's competition, mostly toward
the end of the first week. Narrowing the number down left us to decide between
two different storms that produced nearly baseball sized hail. The MARCH WINNER
was a large Supercell that developed in north Louisiana passing just south of
Monroe on the 5th. It then moved into Richland and Franklin Parishes during the
evening. By 828pm CST, VILs peaked around 59 kg/m*m while the 60dBz tilted core reached to just under 30,000 ft
and exhibited a strong Weak Echo Region(updraft into the storm) even at a
distance of about 90nm from the radar located to the east. The Hail and Severe
Hail algorithms performed well as seen in the Cell Attribute Table image below
and a radar-defined Mesocyclone was observed likely to a depth of nearly 32,000 ft.
You might notice that the radar beam at this distance is scanning at about
10,000 ft above the surface. A stronger rotational shear couplet in the
Mesocyclone developed within 20 minutes of the images below as the storm moved
east of Winnsboro. Tornado warnings were in effect for this storm and
considerable wind damage was reported along it's path.
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 | A Composite Reflectivity View(top) &
Vertical Cross
Section(bottom) at 828pm CST...Interstate 20 is indicated in lgt brown.
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Cell Table(top) & Mesocyclone Table(bottom) Attributes
at 828pm CST
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Note: Velocities
(green-motion toward radar ; red-motion away from
radar located 90nm east of the storm)
A 4-Panel View of 0.5 Degree Base Reflectivity
(u.left), 1.5Deg Base Reflectivity(u.right), 0.5 Degree Storm
Relative Velocity(l.left), 1.5 Degree Storm Relative Velocity(l.right)
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