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Water Survey

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  • PRI scientists provide winter soil conditions and an insect pest forecast for Illinois

    Mar 14, 2022 9:30 am

    Near-average winter soil and air temperatures are an indication that crop insect pests may have survived the cold in Illinois, according to scientists Jennie Atkins and Kelly Estes at the Prairie Research Institute (PRI) at the University of Illinois.

  • PRI water and climate experts take part in new State Water Plan and its goals

    Jan 23, 2023 3:00 pm

    Scientists at the Prairie Research Institute (PRI) have contributed their expertise and data on multiple water issues to inform the newly released 2022 Illinois State Water Plan, which serves as an advisory to address water-related challenges for the next seven years. PRI will also play an integral part in reaching the plan’s goals, particularly in developing an Illinois Integrated Water Information Center, a portal to water science information and technology in Illinois.

  • Project features home assessments for flood risks

    Nov 13, 2019 4:15 pm

    Scientists studying and mapping flood hazards have long identified whole neighborhoods that are vulnerable to flooding, but with new data, researchers at the Illinois State Water Survey (ISWS) can specify flood risk for individual homes and businesses.

  • Map of building footprints

    Project maps out building footprints in Illinois to study natural disasters

    Mar 27, 2019 10:00 am

    Researchers at the University of Illinois are keeping an eye on areas of Illinois that are at high risk for flooding, not only county by county, but also building by building.

  • Public Meeting on Arsenic in Tolono Wells to be Held Oct. 4

    Sep 23, 2011 9:15 pm

    The Illinois State Water Survey (ISWS) is presenting information and outcomes from a study on arsenic concentrations found in resident wells in the Tolono area on Tuesday, October 4, 2011.

     

  • Rainy and Dry, Chilly and Warm: 2011 Was a Unique Year

    Jan 10, 2012 8:30 pm

    The year 2011 was the 10th wettest year and a year of extreme monthly temperatures and precipitation, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois at Urbana-Champaign

  • Record-Breaking Wet February in Illinois

    Mar 2, 2018 11:00 am

  • Record June Rain, Flooding Inundates Midwest

    Jul 2, 2015 2:45 pm

    Heavy rain and flooding highlighted a wild month of June across the central portions of the Midwest.  The wettest state was Illinois, where a precipitation record that has stood for over 100 years was broken, according to Bryan Peake, service climatologist at the Midwestern Regional Climate Center (http://mrcc.isws.illinois.edu), Illinois State Water Survey (ISWS).

  • Record-Setting December Occurred in Illinois

    Jan 4, 2016 10:30 pm

    December was the warmest and second wettest for that month on record in Illinois, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • Record-Setting Rainfall in April for Illinois

    Apr 29, 2011 12:15 am

    The statewide average rainfall for Illinois in April was 7.45 inches, nearly double the average rainfall of 3.83 inches for the month. This exceeds the old record of 7.13 inches set in 1957, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Record Wet Conditions Continue for the Midwest

    Aug 4, 2015 2:30 pm

    Heavy rain continued to fall across the Midwest this July after Illinois, Indiana, and Ohio broke records for June precipitation. Seven of the nine states in the region recorded above normal precipitation for July, according to Bryan Peake, service climatologist at the Midwestern Regional Climate Center (http://mrcc.isws.illinois.edu/), Illinois State Water Survey (ISWS).

  • Record Wet Start to the Year in the Midwest

    Jul 16, 2013 2:30 am

    Following the drought-stricken 2012, the first six months of 2013 are off to a record wet start in much of the Midwest.  Year-to-date regional precipitation totals rank as the wettest January-to-June period on record (records start in 1895) for the Midwest, according to the Midwestern Regional Climate Center (http://mrcc.isws.illinois.edu) at the Illinois State Water Survey (ISWS).

  • Record-Wettest August in Illinois

    Sep 1, 2016 5:00 pm

    The statewide average rainfall for August was 6.89 inches, 3.30 inches above normal and the wettest August on record, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • Regional Climate Models are Poised to Predict Future Climate of Illinois

    Nov 19, 2008 9:15 am

    While scientists have predicted for years that the global climate will change in the future, an atmospheric scientist at the Illinois State Water Survey at the University of Illinois in Urbana-Champaign is working on a climate model at the regional scale to predict the impacts of climate change right here in Illinois.

  • Dr. Misganaw Demissie

    Remembering Dr. Misganaw "Mike" Demissie 1949 - 2023

    May 1, 2023 12:15 pm

    The PRI family recently lost one of our own, Dr. Misganaw (known to many as Mike) Demissie, who made a positive difference worldwide through his work and made a lasting impression on the legacy of the Illinois State Water Survey (ISWS). Demissie passed away on April 20, 2023.

  • Report describes water resources available in Middle Illinois River region

    Oct 10, 2018 11:30 am

    A report on the water resources available in the Middle Illinois River water supply planning region is now available (ISWS Contract Report 2018-02). The results of the study are generally positive for the region, with abundant water available for most needs.

  • Report for the Urban Flooding Awareness Act

    Apr 6, 2017 12:45 pm

    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.

  • orange irrigation pipe

    Reporting program collects data on water use in Illinois

    Nov 2, 2020 9:00 am

    Scientists investigating present and future water resources in Illinois find a wealth of data through the Illinois Water Inventory Program (IWIP), which collects data from users of high-capacity intakes and wells in Illinois.

  • Researchers study radium in aquifers of north-central Illinois

    Sep 20, 2021 9:00 am

    Walt Kelly, Illinois State Water Survey (ISWS) groundwater geochemist, answered questions about the findings of his recent study on radium levels in groundwater of the St. Peter Sandstone aquifer, with a study area in north-central Illinois. Radium levels are above the drinking water standard in many community water supply wells open to the aquifer.

  • solar eclipse

    Researchers study weather and climate conditions during solar eclipse in Illinois

    Aug 16, 2017 3:45 pm

    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.

  • Researchers track mercury in fish from Illinois streams

    Jul 29, 2013 2:15 am

    Mercury concentrations in small fish from Illinois streams have decreased since the turn of the 20th century, but mercury pollution persists in the environment, even in rural areas far from mercury sources, according to findings from a study conducted by scientists from the Prairie Research Institute, University of Illinois.

  • storm drain

    Researchers update Illinois standards for storm frequencies

    May 2, 2019 10:45 am

    Researchers at the Illinois State Water Survey have recently applied newer data to update Bulletin 70, the publication that provides the state standards for expected extreme storms. Engineers who design these sewers and culverts are typically required by county or community ordinances to use data from Bulletin 70 to build adequate structures based on a predefined magnitude and duration of storms.

  • Rethinking short-term droughts in Illinois

    Apr 14, 2020 6:00 am

    While there is no universally accepted definition of drought, contemporary definitions look at a percentage of precipitation over a protracted period of time, in most cases over the course of a year. Some say this approach leaves people and communities vulnerable to a different type of drought – flash droughts.

  • COVID-19 virus

    Sampling sewer water for COVID-19 in the community 

    Aug 3, 2021 9:00 am

    Illinois State Water Survey researchers are part of a project to look for traces of SARS-CoV2, the virus that causes COVID-19, in sewer water in order to help monitor the spread of infection.  

  • Science in support of the Forest Preserves of Cook County developing the Natural and Cultural Resources Master Plan

    Jan 12, 2015 10:15 am

  • Scientific Models Use Weather Data to Predict State's West Nile Virus Infection Rates

    Aug 4, 2016 7:15 pm

    As this year's West Nile virus (WNV) transmission season begins, researchers from the University of Illinois have made available forecasting models they created for each of the nine climate areas of Illinois to predict mosquito infection rates on a weekly basis. Mosquitoes transmit WNV to humans.

  • Scientist-community interaction is a boon for water supply planning

    Jan 13, 2022 11:15 am

    When it comes to water supply planning, stakeholders want to know when their community will be at risk for water shortages. Illinois State Water Survey (ISWS) scientists involved in community groundwater modeling are touting the value of engaging those stakeholders to reduce uncertainty and help them understand how the models work.

  • Scientists study regional benefits of limiting climate warming

    May 24, 2021 12:00 pm

    Limiting the global average temperature to 1.5 degrees C (2.7 degrees F) above pre-industrial conditions compared with 2 degrees C (3.6 degrees F), as predicted for the future, will avoid more intense and more frequent heavy precipitation and extreme heat waves, according to a recent study at the Illinois State Water Survey (ISWS) that explored global warming’s effects on specific U.S. regions.

  • Scientists to build toolkit addressing climate change and environmental justice in Chicago communities

    Aug 1, 2022 2:45 pm

    With new funding from NASA, a University of Illinois team of scientists will use NASA Earth science and localized social data to develop an innovative, multi-sector geospatial environmental justice toolkit for urban decision making in the Chicago region.

  • Second Wettest June on Record for Illinois

    Jul 1, 2010 1:15 am

    Illinois has experienced the second wettest June on record, based on preliminary data. The statewide average precipitation for June was 7.8 inches, 3.7 inches above normal, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Second Wettest October on Record

    Nov 2, 2009 10:00 am

     Based on preliminary data in Illinois, the statewide average rainfall was 8.9 inches, 6.0 inches above normal. This is the second wettest October on record for the state based on data going back to 1895. It almost beat the wettest October on record, 9.2 inches set in 1941, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Second Wettest Year on Record for Illinois

    Jan 9, 2009 8:15 pm

     Illinois experienced its second wettest year on record when 50.7 inches of precipitation fell in 2008. This was 11.4 inches above normal. Only 1993 was wetter with 51.2 inches. Nine of the 12 months in 2008 received above-normal precipitation, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • aerial view of Illinois River

    Sediment causes economic and environmental concerns in the Illinois River valley

    Mar 27, 2017 4:15 pm

    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

  • September: A Cool Month in Illinois

    Oct 7, 2011 9:15 pm

    The statewide average temperature in Illinois was 63.2 degrees, 3 degrees below average, and the 13th coolest September on record for the state.  The coolest September was in 1918 with 59.3 degrees, according to State Climatologist Jim Angel at the Illinois State Water Survey.

  • September Brings Uneven Rainfall across State

    Oct 6, 2009 10:00 am

    Based on preliminary data in Illinois, the statewide average rainfall for September was 2.4 inches, 0.8 inches below normal. This breaks the string of months with above normal precipitation that started in February 2009 and ended in August, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • September brought mild, dry conditions to Illinois

    Oct 3, 2022 3:00 pm

    Illinoisans experienced mild temperatures in the first half of September, followed by summer-like conditions and then a cooler week to finish off the month, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey. The average state rainfall amount was slightly below normal.

  • September Experienced Near Normal Temperatures

    Oct 7, 2010 12:00 am

    Illinois experienced temperatures close to normal for September. The statewide average temperature was 66.8 degrees, just 0.6 degrees above normal, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • sun

    September heat, flooding, and drought

    Oct 1, 2019 2:15 pm

    September 2019 was tied for the fourth-warmest September for Illinois (state average temperatures back to 1895), and the warmest September since 1933. Precipitation varied tremendously from north to south across the state.

  • September in Illinois: Cooler and Wetter than Normal

    Oct 3, 2012 7:30 pm

    September was the first cooler and wetter than normal month in 2012, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois in Urbana-Champaign

  • September in Illinois had above-normal temperatures and rainfall

    Oct 1, 2018 3:45 pm

    The Illinois statewide average temperature for September was 70.0 degrees, 3.8 degrees above normal and the 12th warmest September on record, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois. 

  • September: The Ninth Warmest on Record for Illinois

    Oct 2, 2015 2:30 pm

    September 2015 was the ninth warmest September on record for Illinois, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois. The statewide average temperature was 70.2 degrees, 4 degrees above average.

  • September, Warm and Dry across Illinois

    Oct 4, 2007 7:30 pm

    "A uniformly warm, dry September speeded fall harvest but further increased drought conditions in southern and central Illinois. Statewide rainfall was 1.71 inches, 1.48 inches below normal, and the 12th driest September since 1895. Temperatures in Illinois averaged 69.8 degrees, 3.6 degrees above normal, and the 15th warmest September on record," says State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu), a division of the Illinois Department of Natural Resources.

  • September Was Cool and Wet for Illinois

    Oct 7, 2014 3:45 pm

    September was 1.5 degrees cooler than average and 0.88 inches wetter than average for Illinois, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • September was dry and warm in Illinois

    Oct 2, 2017 2:15 pm

    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.

  • September was Dry and Warm in Illinois

    Oct 7, 2013 1:45 am

    Dry conditions were widespread across Illinois in September, and temperatures were above average for the first time in several months, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Leaves turning colors

    September weather was slightly cooler and wetter than average in Illinois

    Oct 2, 2020 8:45 am

    The preliminary statewide average September temperature was 65.4 degrees, 0.8 degrees below the 30-year normal, and tied for the 45th coolest on record. Preliminary statewide average total precipitation for August was 3.39 inches, 0.16 inches more than the 30-year normal, and the 58th wettest on record.

  • Seventh Coldest February on Record Wraps Up Winter in Illinois

    Mar 3, 2015 3:15 pm

    The statewide average temperature for February was 18.6 degrees, which is 12.3 degrees below the 1981-2010 average and the 7th coldest February on record. In comparison, February 2014 was the 9th coldest at 19.5 degrees, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • Seventh Warmest November on Record

    Dec 2, 2009 10:45 am

    Based on preliminary data in Illinois, the statewide average temperature for November was 46.9 degrees, 5.1 degrees above normal. This was the seventh warmest November on record for the state based on data going back to 1895, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

  • Short-Term Weather Lore Holds a Kernel of Truth

    Oct 25, 2010 12:00 am

    Before the Internet, The Weather Channel, and NOAA radios, our ancestors relied on nature to tell its tale of upcoming weather. Moss growing on the south side of trees and squirrels hiding their nuts deep underground were thought to foretell a severe winter ahead.

    Some natural prognostications like these are grounded in truth, given our current knowledge of meteorology, but others are purely fiction, according to State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois at Urbana-Champaign.

  • Sixth Warmest March on Record

    Apr 5, 2007 8:15 pm

    "After a cold February, the pendulum swung the other way, giving Illinois March temperatures averaging 47.6°F statewide, 6.5°F above normal and the 6th warmest March on record since 1895. Several cities, particularly Champaign-Urbana, set or tied daily high temperature records," says State Climatologist Jim Angel of the Illinois State Water Survey (http://www.sws.uiuc.edu), a division of the Illinois Department of Natural Resources.