Illinois has Warmer, Drier Soils in Mid-April, Illinois State Water Survey

ISWS Press Release

For Immediate Release April 18, 2016
Illinois has Warmer, Drier Soils in Mid-April
Source:   
Contact:   
Jennie Atkins, Ph.D. - (217) 333-4966, jatkins@illinois.edu
Lisa Sheppard - (217) 244-7270, sheppard@illinois.edu

CHAMPAIGN, Ill. – Warmer weather in the second week of April brought warmer and drier soils, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

Daily Maximum Temperature 2 Inches Under Bare Soil - Apr 15, 2016

Bare soil temperatures, on average, rose more than 15 degrees during the week with statewide averages of 63.0 degrees F for 2-inch depths and 61.5 degrees for 4 inches on April 16.  Temperatures under sod rose more slowly with temperatures at the end of the week averaging 57.0 and 55.2 degrees at 4- and 8-inch depths, respectively.

Increases occurred across the state.  Temperatures in southern Illinois rose 15.2 degrees, ending the week with a regional average of 63.7 degrees at 2 inches under bare soil.  The coolest temperatures were in the north where 2-inch temperatures averaged 60.1 degrees on April 16.

Soil moisture levels decreased slightly with the warmer weather.  Levels at a depth of 2 inches declined 13 percent, on average, the second week of April to a statewide average of 0.31 water fraction by volume (wfv).  Levels at 4 inches also decreased to 0.32 wfv.  No significant changes occurred at depths of 8 inches and greater as levels remained near or above field capacity for most of the soils monitored.

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 can be found at the WARM website (http://www.isws.illinois.edu/warm/) and in the Illinois Water and Climate Summary (http://www.isws.illinois.edu/warm/climate.asp).

 

The Illinois State Water Survey at the University of Illinois at Urbana-Champaign, a division of the Prairie Research Institute, is the primary agency in Illinois concerned with water and atmospheric resources.


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