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Scattered showers and thunderstorms developed across much of eastern IA, northwest IL and northeast MO on the afternoon and evening of October 9th. This was due to a strong cold front and associated low pressure system advancing eastward across west central IA. Several supercells developed, with one producing a confirmed tornado near Blairstown, IA in Benton county. Other storms produced hail up to penny size, locally heavy rainfall, and brief funnel clouds.



Radar Image: Tuesday 10/9 5:00 pm


Radar Loop  - Courtesy Iowa Environmental Mesonet
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Rain Reports 

Local Rainfall Map

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Regional Estimated Rainfall 

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Figure 1: SPC Day 1 Outlook (200z) Figure 2: SPC Day 1 Tornado Outlook (200z) Figure 3: SPC Day 1 Wind Outlook (2000z) Figure 4: SPC Day 1 Hail Outlook (2000z)
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Figure 5: DVN Sounding 10/9/18 12z Figure 6: DVN Sounding 10/10/18 00z


Figure 7: SPC Mesoscale Discussion #1550 (see link for details) Figure 8: SPC Mesoscale Discussion #1553 (see link for details) Figure 9: SPC Mesoscale Discussion #1555 (see link for details)


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