The Rural Voice, 1989-05, Page 39is covered, the northern flow of air
will lose its moisture over the moun-
tains of Mexico and New Mexico and
the moisture to the northern corn belt
and the Great Lakes Basin will be cut
off. Usually this does not happen until
mid-July or later. But the systems
have not been so far north so early in
the season for the past 35 years.
While the high pressure systems
are growing, the jet stream will be
forced farther north. This means that
its associated winds, which provide
the necessary forerunners to frontal
rain systems, will be high over the
Canadian prairies, not in the U.S.
Last year's Western Canadian
wheat crop was down 35 per cent and,
unfortunately, one bad year is often
followed by another. Western Can-
adian spring wheat requires that the
subsoil moisture be recharged in the
fall of the previous year. Without
recharge in the fall, germinating wheat
has to rely on erratic rainfall in the
spring. This year the best that can be
expected is average to below average.
The hard red winter wheat areas of
Texas, Oklahoma, and Kansas are dry
and getting drier, bringing the first
dust storms of the season. Even the
major rainfall in the last week of
March missed the hard red wheat areas
of western Kansas.
To date, Kansas has had only 40
per cent of normal rainfall since fall.
If April is as dry as March and
temperatures rise, then look for a 50
per cent hard red wheat crop there.
In the southern hemisphere, the
persistent drought in northern Argen-
tina has probably made this year's
crop the worst in the past 30 years.
My climatologists are saying that
La Nina will continue. The sea
surface temperatures will continue
much colder than normal off the coast
of South America. On the basis of
122 years of historical data, this is bad
news for North American corn yields.
However, if you're a fisherman off the
coast of Peru, this is good news. I
understand that the Peruvian fish catch
and fishmeal production will be good.
By now, if you've added two plus
two, you realize that a wet May and
dry June and July is worse than a dry
May, June, and July. I'm certainly
coaching my clients on preventive
medicine.0
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MAY 1989 37