Soil moisture levels decline slightly in Illinois
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[July 23, 2013]
CHAMPAIGN -- Soil moisture
levels at depths of 2 inches declined an average of 15 percent from
June, according to Jennie Atkins, manager of the Water and
Atmospheric Resources Monitoring program at the Prairie Research
Institute, Illinois State Water Survey, University of Illinois.
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On July 15, soil moisture levels at 2 inches averaged 0.24 water
fraction by volume, or wfv, across Illinois, a decline of 15 percent
from June 15. Moisture levels were higher at deeper
depths, with statewide averages of 0.36 wfv at 20 inches and 0.44
wfv at 39 inches, exhibiting no significant change from June.
Levels were greater in southern Illinois, with an average of 0.33
wfv at 2 inches. However, the more localized nature of summer
precipitation resulted in soil moisture at the 2-inch depth varying
greatly in the area, ranging from 0.17 wfv in Carbondale to 0.36 wfv
at Rend Lake.
Soil temperatures averaged 82.9 degrees at 4 inches under bare
soil, an increase of 7.5 degrees from June.
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The Illinois State Water Survey's WARM program collects hourly
and daily weather and soil information at 19 stations across the
state. Daily and monthly summaries are available on the
WARM website and in
the Illinois
Water and Climate Summary.
Maps of
soil temperatures and moisture levels are also available on the
WARM website.
[Text from file received from
the Illinois
State Water Survey] |