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COMET_CASE_033: COMET Case Study 033:Missouri Isolated Severe Weather


On 21 May 2000, several isolated severe thunderstorms broke out in northwest Missouri. They produced golfball sized hail, up to 70 MPH wind gusts and spawned a F1 tornado. Forecasts for this region were for sunny skies through the afternoon as the conditions supporting convective development were subtle and difficult to recognize. This challenging forecasting scenario provides a good teaching case for identifying triggers of severe thunderstorms.


This case provides an example of severe weather in the wake of a cold frontal passage, in northwest flow aloft.

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Additional information

GCMD Name A - C > COMET > Cooperative Program for Operational Meteorology, Education, and Training > 5c70d6af-b73d-418e-a793-47481302eeb5
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Temporal coverage

Begin Date 2000-05-20 00:00:00
End Date 2000-05-22 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 44.00, Minimum (South) Latitude: 35.40
Minimum (West) Longitude: -100.80, Maximum (East) Longitude: -85.30

Related projects

Parent project COMET: COMET Case Studies