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  • Illinois State Water Survey celebrates 125 years of water and weather research

    ISWS kicks off 125th anniversary year

    The Illinois State Water Survey (ISWS) held the first of five statewide events commemorating 125 Years of Water and Weather on Feb. 4 in Champaign.

  • ISWS is Pioneer in Tracking Tornadoes by Radar

    The Illinois State Water Survey played a key role in developing tornado-tracking technology used today to issue warnings of impending severe storms.  While testing radar equipment to measure rainfall rates in 1953, ISWS meteorologists were the first to photograph and document a hook echo, a classic sign of tornado development.

  • 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

  • physical model in which vertical rods extend from a map to show groundwater level changes in the Joliet, Illinois, area

    ISWS innovates in analysis and visualization of groundwater data

    Water Survey staff have developed innovative ways to analyze and visualize groundwater data, from painstakingly soldered flow models using electricity, to digital flow models like the widely used Prickett-Lonnquist Aquifer Simulation Model (PLASM), to more recent interactive maps and a new approach to developing potentiometric surfaces using MODFLOW.

  • bean field irrigator

    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.

  • CHAMP team members

    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.

  • ISWS Engineer is Selected to Serve on New FEMA Council

    Sally McConkey, Water Resources Engineer at the Illinois State Water Survey, has been selected as a member of the newly created Technical Mapping Advisory Council for the Federal Emergency Management Agency (FEMA), as directed by Congress.

  • ISWS Engineer is Elected Chair of the ASFPM

    Sally McConkey, Water Resources Engineer at the Illinois State Water Survey, has been elected Chair of the Association of State Floodplain Managers (ASFPM). She began her one-year term on May 19.

  • ISWS Climate Models Predict Extreme Heat Waves in Mid-and Late-21st Century

    Heat waves that we have experienced recently will likely pale in comparison to what’s ahead in 50 years if greenhouse gas emissions continue at the current rate, according to Xin-Zhong Liang, Ph.D., Illinois State Water Survey (ISWS) atmospheric scientist at the University of Illinois and assistant professor in the Department of Atmospheric Sciences.

  • the water testing laboratory at the Water Survey

    ISWS analysis can provide answers to water questions

    When Illinoisans have questions about their home water supply, the Water Survey’s Public Service Lab can provide answers. The Water Survey’s chemists customize each water analysis depending on where the water came from, how it will be used, and the symptoms of the problem. 

  • drilling equipment in field

    ISGS, ISWS install new wells for national groundwater monitoring

    Scientists and staff from the Illinois State Geological Survey and the Illinois State Water Survey  ollaborated with county and local governments in Kane County to install groundwater-monitoring wells in northeast Illinois as part of the U.S. Geological Survey’s National Ground Water Monitoring Network

  • Irrigation equipment over a wheat field

    Integrating surface water and groundwater modeling

    Water Survey researchers are exploring ways to simulate the interactions between groundwater and surface water by combining existing modeling technology, including investigating how groundwater elevations change in response to storm events and subsequent river rises.

  • Thunderstorm over a field

    Increasing opportunities through hazard mitigation

    The ISWS Coordinated Hazard Assessment and Mapping Program's (CHAMP) more than 25 professional staff with expertise in engineering, GIS, hydrologic and hydraulic modeling, hazard mitigation planning, and community engagement help communities build unique and comprehensive Natural Hazard Mitigation Plans (NHMP) to assess local hazards, identify high-risk areas, and take action in preventing losses from natural disasters. 

  • Increase in Soil Moisture due to Recent Rains

    Recent rains across Illinois have led to increases in soil moisture levels, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Increased Water Demand Threatens Deep Bedrock Aquifer Water Supplies in Northeastern Illinois

    Deep sandstone aquifers that feed water supplies to parts of Northeastern Illinois are at risk of becoming partially or completely depleted in the next 35 years, a new study at the Illinois State Water Survey (ISWS) suggests.

  • Increased risk of drought conditions in Illinois

    Weather conditions have been dry in the past four to six weeks in parts of northeastern, western, and central Illinois. Forecasts for the next 7 to 10 days show very dry weather and above normal temperatures, which will likely worsen already dry conditions in the state and potentially cause rapid-onset drought conditions in some areas.

  • brown marmorated stinkbug

    Improved pest degree day calculators are available for the 2021 growing season

    Two updated pest degree day calculators from the Prairie Research Institute (PRI) are now available for commodity and specialty crop growers in Illinois, featuring seven-day weather forecasts, graphs, and insect emergence maps to track accumulated degree days and light for the most notorious pests.

  • Illinois was warmer and wetter than normal in August and in the summer

    The statewide average temperature for Illinois in August was 74.9 degrees, 1.3 degrees above normal. The statewide average rainfall was 5.25 inches, 1.66 inches above normal, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois. 

  • Illinois was Cold and Dry in November

    November was much colder and drier than average. The statewide average temperature was 34.3 degrees, which is 8.2 degrees below average, and the fourth coldest November on record, according to Illinois State Climatologist Jim Angel, Illinois State Water Survey, University of Illinois.

  • brown grass on lawn

    Illinois team contributes to vital weekly drought assessment

    Determing which areas of the U.S. and of Illinois are experiencing drought is a critical function of the U.S. Drought Monitor. A team of Illinois scientists led by Illinois State Climatologist Trent Ford provides input on the state drought determination every week. 

     

     

  • Illinois State Water Survey to Study Nippersink Creek

    The Illinois State Water Survey (ISWS) announced today that new hydrologic and hydraulic modeling of Nippersink Creek will be performed in partnership with the Illinois Department of Natural Resources-Office of Water Resources (IDNR-OWR) and the Federal Emergency Management Agency (FEMA). The study will help local communities to identify areas of high flood risk along Nippersink Creek for flood mitigation planning.

  • Illinois State Water Survey to Inventory Private Wells in McLean and Tazewell Counties – Well Owners Asked to Help

    The Illinois State Water Survey (ISWS) is set to conduct an inventory of private wells in the rural areas surrounding Armington, Congerville, Danvers, Deer Creek, Goodfield, Hopedale, Mackinaw, McLean, Minier, Morton, and Stanford to determine water levels, pump settings, and well depths for all local wells.

  • Illinois State Water Survey and U of I Extension Team up to Reduce Flood Risk

    The Illinois State Water Survey (ISWS) and the University of Illinois (U of I) Extension are teaming up to help Illinois communities better understand and reduce their flood risk.

  • Illinois State Water Survey and the U.S. Geological Survey drill new deep sandstone monitoring well in Kendall County

    The Illinois State Water Survey (ISWS) and the U.S. Geological Survey (USGS) completed drilling of a new deep sandstone monitoring well in December 2015. The monitoring well is located in Kendall County, southeast of the town of Newark, IL. The 1,180 feet deep borehole has two nested wells, one which is open to the St. Peter Sandstone and one that is open to the deeper Ironton-Galesville Sandstone. The wells will monitor changing groundwater levels in these aquifers, which are an important source of groundwater for municipal and industrial needs.

  • Illinois State Climatologist Jim Angel to retire in December

    Jim Angel, Illinois State Climatologist, has announced that he will retire in December 2018 after 34 years at the Illinois State Water Survey (ISWS). In his current position, Angel has served as the primary source of science-based weather and climate information and services for the state of Illinois since 1997.

  • Illinois Soil Temperatures were Warm in Mid-April

    Soil temperatures were slightly above the long-term average in the middle of April, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program Manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • Illinois soil temperatures are cool in mid-September

    Soil temperatures fell during the first two weeks of September as cooler weather moved into the state. 

  • Illinois soil temperatures are cooler than normal in mid-April

    Cooler weather in mid-April has caused Illinois soil temperatures to fall.

  • Illinois Soils Warm Over the First Half of March

    Soil temperatures increased through the first half of March, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, Prairie Research Institute, University of Illinois.

  • soils in cornfield

    Illinois soils have cooled in mid-August

    A change in weather has cooled soils across Illinois in mid-August, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) program manager at the Illinois State Water Survey.

  • 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

  • ""

    Illinois soils are warmer, drier in mid-July

    Soils in mid-July are continuing to warm across the state, surpassing average temperatures from last year, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the University of Illinois’ Illinois State Water Survey.

  • Illinois soils are warmer and wetter in mid-October

    A wet October has caused soil moisture to rise across the state.

  • Illinois soils are slightly cooler in mid-August

    Soil temperatures have decreased in mid-August as cooler weather moved into the state.

  • Illinois soils are cooling in the first half of October

    Soil temperatures have fallen 10 to 20 degrees so far in October, which is normal for this time of year.

  • Illinois soils are cooler in mid-August

    Cooler weather has led to lower soil temperatures in the first half of August in Illinois, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) program manager at the Illinois State Water Survey.

  • ""

    Illinois soils are cooler and wetter in mid-June

    Soil temperatures are increasing after a cooling period the second week of June, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) Program manager at the Illinois State Water Survey, University of Illinois.

  • Illinois soils are cooler and drier in mid-September

    Cooler weather in the past week has led to lower soil temperatures throughout the state in mid-September.


  • ""

    Illinois’ soils are cooler and drier in mid-April

    Colder weather entering Illinois has caused soil temperatures to fall, according to Jennie Atkins, Water and Atmospheric Resources Monitoring (WARM) program manager at the University of Illinois’ Illinois State Water Survey.

  • Illinois soil conditions are hot and dry in June

    Warmer weather has led to higher than normal soil temperatures for Illinois in June.

  • Illinois’ mild winter might benefit insect pests this spring

    Above normal air temperatures this winter kept Illinois average soil temperatures higher than usual. These mild conditions are favorable for insect pests that overwinter in Illinois, but many other factors will affect insect populations for the upcoming growing season, according to scientists at the Prairie Research Institute (PRI), a part of the University of Illinois.

  • Illinois’ June weather was hotter and drier than average

    June temperatures in Illinois were above normal with a prolonged heat wave mid-month, according to Illinois State Climatologist Trent Ford at the University of Illinois’ Illinois State Water Survey. The rainfall was below normal for June.

  • Illinois in 2012: Second Warmest and Tenth Driest on Record

    The year 2012 will long be remembered for the drought and the exceptionally warm temperatures. While the data for December are still preliminary, 2012 was the second warmest and tenth driest year on record for Illinois, according to Illinois State Climatologist Jim Angel of the Illinois State Water Survey at the University of Illinois.

  • Illinois has warm, wet June

  • Illinois has Warmer, Drier Soils in Mid-April

    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.

  • Illinois Has Fourth Wettest Year on Record

    Based on preliminary data in Illinois, the statewide average precipitation for 2009 was 50.3 inches, 11 inches above normal. This was the fourth wettest year on record for the state based on data going back to 1895, according to State Climatologist Jim Angel of the Illinois State Water Survey

  • Illinois has Four Odd Tornado Seasons in a Row

    The 2015 tornado season thus far in Illinois and the rest of tornado alley is incredibly quiet. However, this quiet start is no reason to relax if the past few years are a guide, according to Illinois State Climatologist Jim Angel at the Illinois State Water Survey, University of Illinois.

  • 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.

  • Soybeans ready for harvest

    Illinois has cooler, wetter soils in mid-September

    Soil temperatures have cooled the first half of September. Wetter weather the past two weeks has led to increases in soil moisture for northern and central 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.