Drenching rain from Isaac is forecast by AccuWeather.com to reach some needy drought areas in the Plains and Midwest into the weekend.
Portions of Arkansas, Missouri, Illinois and other Central states will soon be on the receiving end of an "iRainstorm."
While flooding rainfall in southeastern Louisiana and Mississippi will tend to diminish farther inland, some beneficial rain will fall on the parched landscape hundreds, if not a thousand, miles away from the Gulf Coast.
Cities that are likely to receive some rainfall from a diminishing Isaac include Shreveport, La.; Little Rock, Ark.; Tulsa, Okla., Chanute, Kan.; Memphis, Tenn.; and St. Louis, Mo.
The rain is coming far too late for this summer's crops, such as corn. Soybeans will only benefit slightly as we are near the end of the maturity period in most locations. However, according to AccuWeather.com Agricultural Meteorologist Dale Mohler, there is the potential that rain could reach far enough westward to benefit part of the winter wheat areas.
"The wheat over the central and southern Plains is generally planted during September, and replenishing soil moisture prior to planting after summer drought is essential for any new crop," Mohler said.
The rain will also help to green up some pastures. It is possible for some farmers to get a cut of hay in before the winter as a result of Isaac.
Enough rainfall may help to get things moving in the right direction from a hydrological standpoint as well. Some rain is likely to fall on the Missouri, Arkansas, Red (of the South) and the Ohio basins, all of which feed into the lower Mississippi River.
Low water levels from the middle of summer on have negatively affected barge traffic. Barge companies have had to reduce loads, and there have been a couple of instances where vessels ran aground.
River levels and the water table tend to bottom out moving into the autumn as the frequency of thunderstorms diminishes prior to the onset of winter storms.
There is the potential for local rainfall on the order of 6 inches reaching into parts of Arkansas. However, exactly how much rain falls from location to location will depend largely on the forward speed and track of the system.
According to Expert Senior Meteorologist Brett Anderson, "It obviously will not rain everywhere in the Plains and Midwest from the system, so folks should not get their hopes too high just yet."
It appears the rain will not travel much farther west than the easternmost counties of Kansas and Oklahoma and is likely to turn eastward before reaching Nebraska and much of Iowa.
Too Much of a Good Thing
Slow-moving tropical systems often move erratically and can bring tremendous differences in rainfall in only short distances.
Because of the weak steering currents over the central U.S., exactly which places will benefit the most from Isaac's rainfall are unclear.
This means that while some areas will have beneficial rain, other areas may get virtually nothing and a few places could be deluged with too much rain too quickly, leading to flash flooding.
For example, if Isaac's rain were to focus in a narrow swath over the Ozarks, an area prone to dramatic runoff, flash flooding could occur.
According to AccuWeather.com Chief Meteorologist Elliot Abrams, "We believe some rainfall from Isaac's remnants will eventually roll across the Ohio Valley and the Northeast."
As rain from Isaac pushes across the South Central states through the end of the week, the high pressure area to the north will deliver a late-summer heat wave over the North Central states.
The next windstorm to target Europe will narrowly miss the United Kingdom on Saturday before a cold snap settles in for Valentine’s Day and Monday.
A blast of arctic air will be accompanied by flurries and even a localized wall of snow in some communities in the Northeast and parts of the Midwest at the start of the Valentine's Day weekend.
Spring of 2016 could rank in the top 10 warmest on record for Canada.
The coldest air of the winter will plunge southward across much of the eastern United States and will feature single-digit and sub-zero temperatures in the Northeast during Valentine's Day weekend.
A storm will bring snow and ice that will lead to slippery travel along a 1,500-mile swath from northern Arkansas and Georgia to Maine early next week.
Passengers on the latest voyage of Royal Caribbean's Anthem of the Seas faced the complete opposite of a care-free, relaxing experience after an encounter with a ferocious storm in the Atlantic.
Richmond, VA (1932)
83 degrees, tied February record.
Bedford, PA (1979)
Mid Atlantic (1983)
Blizzard of 83 struck hard. Philadelphia, PA picks up 21.3' of snow, the third greatest snowfall ever recorded. 22.8" fell in Baltimore, MD. 25.2" of snow in Allentown, PA with thunder and lightening. Snow in Allentown fell at rate of 5" per hour at height of the storm. 30" bury Harper's Ferry WV. 16.6" of snow blankets the nation's capital. 22" of snow fell at NYC's La Guardia Airport.