Severe Thunderstorm and Heavy Rainfall Potential Continues

A low pressure center tracking across the Great Lakes and its associated cold front extending across the Southern Plains will focus occasional showers and thunderstorms through tonight. A few of these thunderstorms may become severe alongside heavy rainfall that may cause flash flooding; Portions of the Southern Plains would be the greatest threat for these hazards through tonight. Read More >

Overview | Maps | Storm Reports/Damage Survey | Discussions

General Overview

	What:	Isolated thunderstorms developed during the late afternoon and evening hours ahead of a storm system that was moving southeastward across eastern Iowa and Illinois. The strongest of these thunderstorms produced large hail and strong gusty winds.
	When:	late afternoon and evening hours on July 13, 2015
	Rainfall Amounts:	A few hundredths to three quarters of an inch
	Hail Sizes:	nickel to softball
	Wind Speeds:	50 to 60 MPH
	Hardest Hit Areas:	Calamus. Grand Mound, and LeClaire Iowa as well as Geneseo Illinois for hail. Memphis and Rutledge Missouri as well as Hennepin Illinois for wind gusts.

Overview | Maps | Storm Reports/Damage Survey | Discussions

Maps

Local Rainfall (Created by 11am. Click to enlarge.)	Regional Rainfall (Click to enlarge.)

Local Storm Reports (Click for interactive display.)	Radar (Click to enlarge and loop.)

Overview | Maps | Storm Reports/Damage Survey | Discussions

Preliminary Local Storm Reports - Courtesy of the Iowa Environmental Mesonet (IEM)

Pictures

Pictures of hail and hail damage in Calamus Iowa

Rainfall Reports (RTPDVN - LCODVN) - Courtesy of the Iowa Environmental Mesonet (IEM)

Max/Min Temperature and Precipitation Table - (available ~845 am 07/14)

CoCoRaHS Precipitation Summary - (available ~945 am 07/14)

Overview | Maps | Storm Reports/Damage Survey | Discussions

Pre-Event Discussions - Courtesy of the Iowa Environmental Mesonet (IEM)

Below are links to the most recent Hazardous Weather Outlook, Area Forecast Discussion, SPC Day 1 Outlook, and
SPC Mesoscale Discussion before the event began.

Hazardous Weather Outlook - 07/13 04:28 am

Area Forecast Discussion - 07/13 01:38 pm

Mesoscale Discussion 1394

Day 1 Convective Outlook

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Severe Thunderstorm and Heavy Rainfall Potential Continues

Severe Thunderstorms July 13, 2015 - Event Summary