World Grain - September 2020 - 58

DRYNESS HITS THE US

HEARTLAND
Sudden downturn in soil moisture rattles markets

W

eather in the western
and central US Corn and
Soybean Belt turned quite
dry in August. The sudden downturn in soil moisture surprised the
marketplace and expanded dryness
from Iowa into a larger part of the
Midwest at just about the time when
China started to buy soybeans and
other products. The combination of
the two events was welcome and it
was hoped that this would be the beginning of a return to "normal trading." But while analysts and traders
were busy assessing the losses of
2020, farmers and weather forecasters were beginning to look at the
lasting impact of dryness, especially
with La Niña beginning to evolve.
La Niña events do not usually
provide an abundance of moisture
during the autumn or winter seasons
once they are established, but this
La Niña is just beginning to evolve,
leaving some question as to how
PXFKLQÀXHQFHLWZLOOKDYHRQDXtumn precipitation. World Weather,
Inc. notes that the prevailing weath-

58

er pattern is not conducive of much
precipitation going into the autumn.
A dry autumn is not fully expected, although the Great Plains
and western Midwest are not likely
to see abundant precipitation in
September or November. However,
October will be a month of transition and that may bring a little more
mix of weather across the midsection of the nation. resulting in
greater rainfall. A full restoration in
soil moisture to the driest areas in
Iowa does not seem very likely, but
a boost in topsoil moisture should
occur at that time.
This year's La Niña event is expected to evolve over the next few
months, last through winter and then
abate in the spring. That may be just
long enough to restrict moisture in
Iowa and neighboring states that are
QRZFDUU\LQJVRPHPRLVWXUHGH¿FLWV
RI VLJQL¿FDQFH 7KH VLWXDWLRQ SXWV
pressure on winter precipitation and/
or spring 2021 weather. The longer
La Niña lasts, the greater the dif¿FXOW\ ZLOO EH LQ JHWWLQJ D JHQHUDO

soaking of rain to occur prior to the
growing season of 2021.
However, that is a very pessimistic outlook and not quite realistic. The US National Oceanic
and Atmospheric Administration
(NOAA) has suggested that over
the years of climate change, precipitation during the early autumn, winter, spring and summer
has trended wetter and because of
WKDW WKH QHJDWLYH LQÀXHQFH RI /D
Niña has become less. They say
that based on the fact that La Niña
events in North America and many
other areas in the middle latitudes
traditionally reduce atmospheric
moisture. Without any further consideration, La Niña events would
always result in less precipitation
regardless of the prevailing weather
pattern. However, the NOAA suggests the trend for many of these
seasons is for greater precipitation,
and if La Niña reduces precipitation
in a now typically wetter environment the loss of precipitation may
QRWEHQHDUO\DVVLJQL¿FDQW

September 2020 / World Grain / www.World-Grain.com

©Igor Stevanovic - stock.abode.com

by Drew Lerner


http://www.World-Grain.com

World Grain - September 2020

Table of Contents for the Digital Edition of World Grain - September 2020

World Grain - September 2020 - 1
World Grain - September 2020 - 1
World Grain - September 2020 - 2
World Grain - September 2020 - 3
World Grain - September 2020 - 4
World Grain - September 2020 - 5
World Grain - September 2020 - 6
World Grain - September 2020 - 7
World Grain - September 2020 - 8
World Grain - September 2020 - 9
World Grain - September 2020 - 10
World Grain - September 2020 - 11
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World Grain - September 2020 - 13
World Grain - September 2020 - 14
World Grain - September 2020 - 15
World Grain - September 2020 - 16
World Grain - September 2020 - 17
World Grain - September 2020 - 18
World Grain - September 2020 - 19
World Grain - September 2020 - 20
World Grain - September 2020 - 21
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http://digital.world-grain.com/sosland/wg/2020_09_01
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http://digital.world-grain.com/sosland/wg/2020_03_01
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http://digital.world-grain.com/sosland/wg/2019_07_01
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http://digital.world-grain.com/sosland/wg/2019_04_01
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http://digital.world-grain.com/sosland/wg/2018_09_01
http://digital.world-grain.com/sosland/wg/2018_08_01
http://digital.world-grain.com/sosland/wg/2018_07_01
http://digital.world-grain.com/sosland/wg/2018_06_01
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http://digital.world-grain.com/sosland/wg/2015_05_01
https://www.nxtbook.com/sosland/wg/2015_04_01
https://www.nxtbook.com/sosland/wg/2015_03_01
https://www.nxtbook.com/sosland/wg/2015_02_01
http://digital.world-grain.com/sosland/wg/2015_01_01
https://www.nxtbook.com/sosland/wg/2014_12_01
https://www.nxtbook.com/sosland/wg/2014_11_01
https://www.nxtbook.com/sosland/wg/2014_10_01
https://www.nxtbook.com/sosland/wg/2014_09_01
https://www.nxtbook.com/sosland/wg/2014_08_01
https://www.nxtbook.com/sosland/wg/2014_07_01
https://www.nxtbook.com/sosland/wg/2014_06_01
https://www.nxtbook.com/sosland/wg/2014_05_01
https://www.nxtbook.com/sosland/wg/2014_04_01
https://www.nxtbook.com/sosland/wg/2014_03_01
https://www.nxtbook.com/sosland/wg/2014_02_01
https://www.nxtbook.com/sosland/wg/2014_01_01
https://www.nxtbook.com/sosland/wg/2013_12_01
https://www.nxtbook.com/sosland/wg/2013_11_01
https://www.nxtbook.com/sosland/wg/2013_10_01
https://www.nxtbook.com/sosland/wg/2013_09_01
https://www.nxtbook.com/sosland/wg/2013_08_01
https://www.nxtbook.com/sosland/wg/2013_07_01
https://www.nxtbook.com/sosland/wg/2013_06_01
https://www.nxtbook.com/sosland/wg/2013_05_01
https://www.nxtbook.com/sosland/wg/2013_04_01
https://www.nxtbook.com/sosland/wg/2013_03_01
https://www.nxtbook.com/sosland/wg/2013_02_01
https://www.nxtbook.com/sosland/wg/2013_01_01
https://www.nxtbook.com/sosland/wg/2012_12_01
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https://www.nxtbook.com/sosland/wg/2012_10_01
https://www.nxtbook.com/sosland/wg/2012_09_01
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http://digital.world-grain.com/sosland/wg/2009_06_01
http://digital.world-grain.com/sosland/wg/2009_05_01
http://digital.world-grain.com/sosland/wg/2009_04_01
http://digital.world-grain.com/sosland/wg/2009_03_01
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