Tropical Wave to Bring More Unnecessary Rainfall to Parts of the Southeast
Thursday, August 15th, 2013
When it rains, it pours! Take a look at the image below from Columbus, GA where a record daily rainfall occurred on Wednesday (5.73″)!
Take a look at how much rain has tallied up in spots around Columbus, GA. Thanks to a stalled front and a moist tropical flow, additional heavy rainfall potential will continue through the weekend.
Extreme 2013 Precipitation
Moisture levels so far this year have been incredible. Since January 1st, some spots are nearly a foot and a half above normal!
A Closer Look
Atlanta, GA is one of those spots that has seen excessive moisture so far this year. However, take a look at how many other locations that are in the double digits for precipitation surplus. If you consider the annual average precipitation in Atlanta, GA is nearly 50″, we’ve seen nearly the entire yearly amount of precipitation already! If we see average precipitation through the rest of the year, we could be nearly 15″ above normal by the year’s end!
Soggy in Atlanta
I thought this was interesting… 14 out of the last 22 weekend days in Atlanta have had at least of trace of precipitation. We may be able to add another 2 days onto that as rain chances continue this weekend!
According to NOAA’s HPC 5 day rainfall suggests an additional 2″ to 4″+ across parts of the Southeast through early next week. This could certainly prompt more flash flooding concerns.
Folks in the eastern two-thirds have been quite moist so far this year, but take a look at the contrast for folks in the western part of the country.
No surprise that as dry as it has been out west, drought conditions continue. The worst of the drought continues to line up right along the Front Range of the Rockies and into parts of the Rocky Mountains.
Significant Changes in the Drought
Extreme rainfall reports have been coming in over the past several weeks over parts of the Plains and one location that has been seeing some significant changes is Kansas. Take a look at the change in just one week!
U.S. Drought Outlook
NOAA’s Climate Prediction Center recently released it’s Drought Outlook, which looks promising in some areas, but still pretty dismal in other areas.
“Latest Seasonal Assessment – Since the summer drought of 2012 that affected much of the Great Plains, Mississippi Valley, and Corn Belt, the focus for drought generally shifted west during the past six months. Drought recently reestablished itself across Iowa, northern Missouri, and the lower Mississippi Valley. According to the U.S. Drought Monitor, little to no drought covers the continental U.S. east of the Mississippi River. Georgia and South Carolina were the wettest on record from February through July. The drought outlook for August 15 – November 30, 2013 is based primarily on short-, medium-, and long-range forecasts, initial conditions, and climatology. Although rainfall associated with the monsoon diminishes during September, improvement is forecast for parts of Arizona, Colorado, and New Mexico since the CPC September outlook favors above median precipitation. Persistence is forecast across the extreme to exceptional drought areas from the Oklahoma Panhandle north to western Nebraska, while prospects for improvement increase to the east across central Kansas, western Oklahoma, and northern Texas. Improvement is also expected for the short-term drought areas of the lower Mississippi Valley, Missouri, and Iowa. In contrast, persistence is forecast for the intermountain West, Great Basin, and for ongoing drought areas along the West Coast where the wet season arrives late in this outlook period. Drought is expected to gradually ease during the fall across Alaska, while drought persists or expands across the Hawaiian Islands.”
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