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Illinois State Water Survey

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  • Water Survey to receive $1M for rural outreach programs

    The Illinois State Water Survey (ISWS) will receive more than $1 million in funding through 2021 to support its drinking water outreach programs for private well owners and small, rural communities.

  • Cooler soil temperatures in mid-April

  • Kristovich to speak May 15 on Great Lakes Climate Changes and Impacts on Water Resources

    David A.R. Kristovich, head of the Water Survey's Climate and Atmospheric Science Section, will speak at a meeting of the Air & Waste Management Association Lake Michigan States Section on May 15. 

  • 2018 Celebration of Excellence

    On April 11, the Prairie Research Institute honored employees for their outstanding achievements and excellent work. Selection committees composed of staff from across the organization reviewed multiple strong nominations before selecting the 2018 honorees.

  • Fourth wettest February-March on record in Illinois

  • Soil temperatures and moisture levels declining in early March

  • Record-Breaking Wet February in Illinois

  • Soil temperatures this winter in Illinois were warmer than normal

  • ISWS investigates the potential for stormwater credit trading in Cook County

    In 2017, The Metropolitan Planning Council, The Nature Conservancy, and the Metropolitan Water Reclamation District in Cook County collaborated on a feasibility study to consider stormwater credit trading as an alternative to creating on-site facilities for site development or redevelopment. As part of this study, the collaborators contracted a team of engineers and hydrologists at the Illinois State Water Survey (ISWS), joined by U of I Department of Landscape Architecture staff, to assess the land area that has the potential for off-site stormwater management facilities in suburban Cook County

  • Users of data on Illinois environmental conditions will now register for access

    Starting this month, users will be asked to register to access data on Illinois’ weather, soil, and water conditions on the University of Illinois’ Water & Atmospheric Resources Monitoring (WARM) program website. Data are still free of charge.

  • January in Illinois was cold and dry

    January in Illinois was colder and drier than normal without much snow, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois.

  • Central Illinois weather station is upgraded to track air pollution particles

    After 23 years of data collection on atmospheric conditions at the Bondville Environmental and Atmospheric Research Site, a team from the National Oceanic and Atmospheric Administration worked with scientists at the Prairie Research Institute to move the monitoring system to a new temperature-controlled building.

  • January 2018 has been colder and snowier than last year

    We're halfway through January 2018, and State Climatologist Jim Angel writes that so far it's been colder and snowier than last year, with a statewide average temperature of 16.5 degrees, 7.3 degrees below normal.

  • Warm year in Illinois ends with a cold, dry December

    2017 was the sixth warmest year on record in Illinois with a statewide average temperature of 54.3 degrees, or 2 degrees above normal, in spite of the very cold ending to December.

  • Gov. Rauner appoints ISWS scientist George Roadcap to Mahomet Aquifer Task Force

    Illinois State Water Survey hydrogeologist George Roadcap is among those appointed to the Mahomet Aquifer Task Force, which has been charged with protection of the Mahomet Aquifer, a primary source of drinking water for 500,000 Central Illinois residents.

  • ISWS wins honorable mention in FEMA's CTP Recognition Program

    As a Cooperating Technical Partner (CTP), the Coordinated Hazard Assessment and Mapping Program of ISWS assesses local flood hazards, identifies high-risk areas, and engages community partners to inform, educate, and empower others to take action in preventing losses from natural hazards.

  • Illinois Farm Bureau highlights vital stats available from WARM

    Wind speed, precipitation, soil temperatures and pest degree days. Farmers can get those vital statistics and more from the Water and Atmospheric Resources Monitoring Program (WARM). More than 150,000 visitors--farmers, governmental agencies, industry and academics--regularly check the website at isws.illinois.edu/warm.

  • Will Illinois have snow for Christmas?

    Illinois State Climatologist Jim Angel wonders if it will be a white Christmas here in Illinois.

  • November in Illinois: Cool and dry with a dash of snow

    November in Illinois was slightly cooler and slightly drier than average, says the Illinois State Climatologist.

  • Steve Wilson to serve on program advisory committee for National Environmental Health Association

    The National Environmental Health Association (NEHA), a professional society for environmental health practitioners with thousands of members nationwide, has invited Illinois State Water Survey groundwater hydrologist Steve Wilson to participate in its Program Advisory Committee, which helps set policy and direction for NEHA programs.

  • Soil temperatures were warmer than normal in mid-November

    Soil temperatures at 4 inches under bare soil averaged 43.4 degrees on November 14, 4.5 degrees below the long-term average. Daily maximums reached into the low 50s with Fairfield reporting the day’s highest temperature at 52.7 degrees.

  • Water Survey maps complex web of water use in Illinois

    Scientists at the Illinois State Water Survey have developed an interactive map of where every community in Illinois gets its water. Sources include Lake Michigan, rivers and reservoirs, and groundwater.

  • October was the 10th wettest in Illinois

    The statewide average precipitation in Illinois for October was 4.94 inches, 1.70 inches above normal, and the 10th wettest October since 1895, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey.

  • Soil moisture improved in October in Illinois

    Soil moisture levels have improved throughout the state during the first half of October, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at University of Illinois’ Illinois State Water Survey.

  • September was dry and warm in Illinois

    The statewide average rainfall in September was 0.78 inches, 2.45 inches below normal and the 5th driest September on record, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey.

  • Climatologist compares rainfall from Hurricane Harvey with Chicago storms

    What would happen if the rain from Hurricane Harvey that fell in Houston, Texas, hit Chicago? The result would be unlike any rainstorm that Chicago has ever seen, according to Illinois State Climatologist Jim Angel.

  • Illinois has dry soils in mid-September

    Illinois received 0.20 inches of rain for the month as of September 17, 1.59 inches below the long-term average. Dry weather in August and September has led to low soil moisture across Illinois.

  • PRI researchers gain new insights into how groundwater flows within the Illinois Basin

    A conceptual model of water movement in rock layers many feet underground, published by Prairie Research Institute scientists, shows for the first time that water is flowing steadily south through the thick sequence of rock layers that form the Illinois Basin.

  • Water Survey researchers tracked weather changes during the eclipse

    An Illinois State Water Survey (ISWS) team documented the eclipse at the Dixon Springs Agricultural Center in Simpson, Illinois, to learn how the atmosphere responded to rapid changes in solar radiation as the moon blocked the sun. At the same time, another team recorded climate conditions every 10 seconds at 19 Illinois locations.

  • August was Cool and Dry in Illinois

    The statewide average temperature in August was 70.6 degrees, 3 degrees below normal. This was the 12th coolest August on record, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

  • Illinois Has a Cool, Dry August

    August was cool across the state and dry in most places in Illinois, capping off a summer that was cool and wet, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • ISWS groundwater expert to participate in community forum on irrigation

    George Roadcap, a scientist at the Illinois State Water Survey (ISWS) and an expert on groundwater and the Mahomet Aquifer, will participate in a community conversation on irrigation sponsored by the Midwest Center for Investigative Reporting from 7 to 9 p.m. Aug. 24 at the Champaign Public Library.

  • Illinois Soils Cooler, Drier in Mid-August

    Soil temperatures at depths of 4 inches under sod averaged 75.8 degrees in Illinois during the first half of August, 1.2 degrees below the long-term average and 4.0 degrees lower than the same period in 2016

  • Researchers study weather and climate conditions during solar eclipse in Illinois

    Watching the sun disappear at midday during a solar eclipse is not only fascinating for viewers across the U.S., but the rare event also presents a unique opportunity for scientists to investigate weather-related changes in Illinois.

  • July Conditions in Illinois Ranged from Floods to Drought

    Northern Illinois experienced heavy rain and widespread flooding in July. Meanwhile, parts of central and southern Illinois experienced dry weather that caused crop damage, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois.

  • Warm Soils across Illinois in July

    Soil temperatures at depths of 4 inches under bare soil averaged 79.9 degrees on July 15, 2.1 degrees above the long-term average.

  • June was Warm with Extreme Rainfall Variations across Illinois

    The average temperature for June in Illinois was 72.8 degrees, 0.9 degrees above normal, according to Illinois State Climatologist Jim Angel with the Illinois State Water Survey, University of Illinois.

  • ISWS Scientists Contributed to Reports Associated with the 2007 Nobel Peace Prize

    Two Illinois State Water Survey atmospheric scientists, Stanley Changnon and Kenneth Kunkel, contributed to reports issued to the Intergovernmental Panel on Climate Change (IPCC), which shared the 2007 Nobel Peace Prize with Al Gore.

  • Wet Soil Conditions in Illinois

    Higher than normal rainfall across most of the state has led to wet soil conditions,  according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Warmer, Drier Soils in Illinois the First Half of June

    Soil temperatures at depths of 4 inches under sod averaged 77.7 degrees in Illinois on June 14, 4.7 degrees above the long-term average.

  • Surveyors Collect Data on Home Elevations in North-Central Illinois for Flood Risk Project

    As part of an Illinois State Water Survey (ISWS) project to determine the risk of flooding for individual homes and businesses in floodplains, licensed surveyors will visit properties to measure the height of structures from late June to July for two pilot areas in the City of Ottawa and the City of Moline.

  • ISWS offers a flood assessment for critical facilities

    When a flood inundates a community, critical facilities such as hospitals and fire stations can lose electricity and equipment used to serve and protect citizens. A flood vulnerability assessment is now available for managers of critical facilities to identify their facility's susceptibility to flooding.

  • Soil temperatures are rising across Illinois

    Soil temperatures at depths of 4 inches under sod averaged 67.5 degrees in Illinois on May 15, 5 degrees higher than the long-term average. Daily highs were in the 60s and 70s for most of the state.

  • ISWS flood mapping program wins FEMA award for outstanding efforts

    PT stakeholders from across the country selected the ISWS Coordinated Hazard Assessment and Mapping Program (CHAMP) for the honorable mention award from the 1st Annual Federal Emergency Management Agency’s Cooperative Technical Partners Recognition Program.

  • A Wet April and Record-Warm January-April in Illinois

    The statewide average precipitation for April in Illinois was 7.01 inches, 3.23 inches above normal and the second wettest April on record, according to Illinois State Climatologist Jim Angel at the University of Illinois’ Illinois State Water Survey.

  • Warm Soils Reported Throughout Illinois

    Soil temperatures rose steadily over the first half of April, increasing 11.5 degrees during the first 15 days. At depths of 4 inches under sod, temperatures averaged 54.9 degrees for the period, 4.4 degrees higher than the long-term average.

  • Report for the Urban Flooding Awareness Act

    The Illinois Department of Natural Resources (IDNR) has released a new report examining the prevalence and costs associated with urban flooding in Illinois, along with strategies and recommendations for minimizing damage to property from this flooding. The Illinois General Assembly called upon IDNR to prepare the report in collaboration with several state agencies.

  • A Snowy, Rainy March in Illinois

    Statewide precipitation averaged 3.62 inches, 0.66 inches above normal. The highest monthly total precipitation was in Lockport with 7.22 inches, according to Illinois State Climatologist Jim Angel at the University of Illinois’ Illinois State Water Survey.

  • Sediment causes economic and environmental concerns in the Illinois River valley

    Researchers at the Prairie Research Institute's Illinois State Water Survey (ISWS) have computed a sediment budget over 35 years to determine the amount of sediment coming into the river valley and the amount going out to the Mississippi River

  • February breaks record for warm temperatures in Illinois

    February was the warmest February on record for Illinois, according to State Climatologist Jim Angel at University of Illinois’ Illinois State Water Survey.