Flooding on May 1 and a look ahead
The main story from May Day is the record amounts of rain in western Tennessee, with 5 deaths reported due to flooding. At Nashville International, the weather station reported 6.32 inches, shattering the old record of 2.96 set just last year. However, in the regional context, 6 inches is not that extreme.
Figure 124-hour Estimated precipitation for the Ohio/Mississippi River valley ending 0300 PDT.
West of Nashville, the NWS estimates that storms produced over 10 inches of rain. This is a consequence of several storms systems moving through the area on Saturday. Data like this is obtained from the Nexrad radar systems. They estimate the amount of precipitation reaching the ground so forecasters can issue flood watches and warnings. The product is known as the Storm Total Precipitation and we have it on the site. Here's a look at Nashville's STP
Figure 2Storm Total Precipitation Estimate for Nashville on May 1-2, 2010.
In the Slight Risk region, Tennessee/Alabama/Mississippi have more risk for tornadoes and damaging winds. To the north, the threat is more from squall lines.
You can find photos of the flooding at WunderPhotos.
In non-flooding news, there were 15 tornado reports, 23 damaging winds reports, and 15 reports of hail. Most of the tornado reports were centered on the Arkansas/Tennessee border. Unfortunately, that area is still under a Slight Risk for Sunday, May 2.
12Z Day 1 Convective Outlook from SPC
As for Monday, might be some hail in the Great Lakes region, including Weather Underground Global Headquarters in Ann Arbor, MI, and a risk of tornadoes in the Carolinas south towards the Florida Panhandle.
Flood damage in Hollow Rock Tennesse (Criqet
A railroad crossing washed out from torrential rains in Carroll County Tennessee. Over 6 inches of rain logged in with my weather station KTNHOLLO!
Many more photos coming.....thanks for viewing
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