Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Overview

The 2018 Kentucky Derby in Louisville will go down as the wettest ever. 3.15" of rain was recorded at Louisville International Airport on May 5, shattering the previous wettest Kentucky Derby and the daily record for May 5.

Record Rainfall in Louisville during 2018 Kentucky Derby

Flooding
Radar
Environment

Flooding


South Fork Beargrass Creek gage near Audubon Park	South Fork Beargrass Creek near Germantown	Flooding on ramp for I-64/I-264

Radar and Rainfall Totals:

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Louisville metro 24 hr precip	Forecast Area 24 hour precip	Radar Loop 2 pm to 5 pm EDT

Environment

The environment supported some heavy rainfall with Precipitable Water (PWAT) values highest across the TN and lower OH Valleys.


Figure 1: 19z Precipitable Water (PWAT)	Figure 2: 19z 850 mb moisture transport	Figure 3: 19z Upwind Propagation Vector

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Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

2018 Kentucky Derby Wettest Ever