Locally heavy rain comes in waves Thursday, blinding rainfall at times

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The monsoon-like rains shifted into southern and southeastern Indiana late Thursday night.  A small area of low pressure rolled across the southern third of the state after sunset and across a very moist atmosphere .  The tropical air was agitated by the low (clouds build and new storms form) and new heavy rain showers and a few thunderstorms delivered locally heavy rainfall.  By 10 PM areal flood warnings went up for a portion of southeast Marion, Johnson,Shelby and Hancock counties.  Radar estimated 1″ to 2″ over the cities southeast side.  Big rains in southeast Indiana has prompted Flash Flood warnings through 8 AM Friday.  Rainfall came quickly earlier in the day with reports of 1.30″ in Alexandria and 2″ in Anderson in under 40 minutes time.  additional rainfall amounts through 10 PM included

.80″ Frankfort

.77″ Marion

1.61″ Batesville

1.30″ Osgood

1.1″ Milan

Officially just over a tenth of an inch fell at the airport.  The selective nature of rainfall this time of the year was very evident today.  here is a look at radar estimated rainfall through 11pm




Estimated Rainfall

Estimated Rainfall
Through 11 PM Thursday




The tropical air is providing scattered showers and thunderstorms the fuel to produce some very heavy rainfall in  a short period of time.  Rainfall rates of 1″ per hour have been identified by the radar.  Long time weather watcher from Alexandria in Madison county Dave Simmons tells us he received 1.30″ of rain in 35 minutes!

The rain will  settle through the city in time for the evening commute.  Blinding rainfall is possible beneath some of the heavier cells but no severe storms are going to develop.  A slow-moving cold front will keep the atmosphere unsettled through the overnight hours.

A small low pressure system may develop and ride along the front overnight providing the added lift to bring more rainfall through 2 AM.  locally heavy rainfall may target southern and southeastern Indiana.  Portions of east and southeastern Indiana are under a flash flood watch until 8 AM Friday.


Flash Flood Watch until 8 AM Friday

Tower Cam

Tower Cam
4 PM Thursday

Level 2

Radar at 4 PM



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