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Severe Storm Reports
Severe thunderstorms developed each day
May 1 - 10. Reports for the 10-day period included:
tornadoes = 436
wind gusts > 50 kts or wind damage = 1161
hail greater than or equal to 3/4" = 2262
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300mb Height & Speed
From May 3 00Z through May 11 00Z a persistent trough/rigde pattern persisted across the
United States. Several shortwaves and jetstreaks migrated through the base of the trough during the
period resulting in severe thunderstorm development on a daily basis.
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Wind Shear (May 3 00z through May 11 00Z)
Tropospheric wind shear is illustrated over tornado alley during the period by wind barbs.
The strong winds shown at 850mb show the intensity of the low-level jet.
green: near surface (1000mb surface)
blue: 850mb
yellow: 300mb
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May 8 Topeka, KS base reflectivity
Radar reflectivity from Topkea, Kansas shows the class supercell thunderstorm precipitation pattern as supercells develop in northeast Kansas and southwest Nebraska.
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May 8 Topeka, KS storm relative velocity
Storm relative velocity from Topkea, Kansas shows rotation within supercell thunderstorms developing in northeast Kansas and southwest Nebraska.
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