McHenry County, Illinois

15 river gauges reading now, shown against their usual but not yet judged.

Official Warnings

No official warning is in effect here right now.

• Nippersink Creek Near Spring Grove, IL: water level 4.45 ft · this gauge’s October monthly average is usually below 4.36 ft · U.S. Geological Survey · 34 min ago
• Nippersink Creek Near Spring Grove, IL: flow 131 ft³/s · within the usual October monthly average for this gauge · U.S. Geological Survey · 34 min ago
• Nippersink Creek Above Wonder Lake, IL: flow 39.5 ft³/s · within the usual October monthly average for this gauge · U.S. Geological Survey · 49 min ago
• Boone Creek Near Mc Henry, IL: flow 9.09 ft³/s · within the usual October monthly average for this gauge · U.S. Geological Survey · 49 min ago
• Nippersink Creek Above Wonder Lake, IL: water level 4.95 ft · within the usual October monthly average for this gauge · U.S. Geological Survey · 49 min ago

River levels are shown against their usual, but not yet judged. A gauge’s usual here is its range of October monthly averages; the reading is the latest 15-minute value, which a passing rain or dry spell can carry outside that range. So no river gauge makes this county Unusual For Here until we compare each day with the same day’s history.

A gauge’s usual is its range of October monthly averages over its record (USGS).

• USGS daily mean streamflow and gage height - Illinois: 30 entries for this county · U.S. Geological Survey · read 9 h ago

Entries are what each state or utility feed lists for this county: incidents, closures or outage areas. We count them; we do not reproduce them.

13 entries from Illinois roadway incidents (Illinois Department of Transportation) for this county, in its latest read.

• Illinois roadway incidents: 13 entries for this county · Illinois Department of Transportation · read 2 min ago

Entries are what each state or utility feed lists for this county: incidents, closures or outage areas. We count them; we do not reproduce them.

1 meeting on the agendas we read for the next seven days.

Coming Up

1 report in the last 24 hours, none published as an event.

• Crystal Lake man charged with repeated sexual abuse of minor ordered to remain in custody pending trial, authorities announce · WGN-TV · 23 h ago Not Yet Confirmed

Wastewater site 461: COVID-19 (SARS-CoV-2) level 1.82, within the usual weekly level for this site.

• Wastewater site 461: COVID-19 (SARS-CoV-2) level 1.82 · within the usual weekly level for this site · CDC National Wastewater Surveillance System · Oct 17, 7:00 PM CDT
• Wastewater site 462: COVID-19 (SARS-CoV-2) level 7.68 · within the usual weekly level for this site · CDC National Wastewater Surveillance System · Oct 17, 7:00 PM CDT
• Wastewater site 465: COVID-19 (SARS-CoV-2) level 7.93 · within the usual weekly level for this site · CDC National Wastewater Surveillance System · Oct 17, 7:00 PM CDT
• Wastewater site 461: influenza A level 1 · within the usual weekly level for this site · CDC National Wastewater Surveillance System · Oct 17, 7:00 PM CDT
• Wastewater site 462: influenza A level 1 · within the usual weekly level for this site · CDC National Wastewater Surveillance System · Oct 17, 7:00 PM CDT

• CDC wastewater data for viral activity level (SARS-CoV-2, influenza A, RSV): 24 entries for this county · CDC National Wastewater Surveillance System · read 13 h ago
• CDC wastewater data for SARS-CoV-2: 3 entries for this county · CDC National Wastewater Surveillance System · read 14 h ago
• CDC wastewater data for RSV: 3 entries for this county · CDC National Wastewater Surveillance System · read 13 h ago
• CDC wastewater data for influenza A: 3 entries for this county · CDC National Wastewater Surveillance System · read 13 h ago

Entries are what each state or utility feed lists for this county: incidents, closures or outage areas. We count them; we do not reproduce them.

North and West Suburbs (Chicago): AQI 66, this county’s daily AQI in October is usually below 56.

• North and West Suburbs (Chicago): AQI 66 · this county’s daily AQI in October is usually below 56 · U.S. EPA AirNow · 1 h ago

• USGS latest streamflow and gage height - Illinois: 27 entries for this county · U.S. Geological Survey · read 17 min ago
• AirNow reporting-area AQI (current and forecast): 16 entries for this county · U.S. EPA AirNow · read 1 h ago

Entries are what each state or utility feed lists for this county: incidents, closures or outage areas. We count them; we do not reproduce them.

Commonwealth Edison (ComEd): 11 customers out, within the usual daily peak in October for this county.

• Commonwealth Edison (ComEd): 11 customers out · within the usual daily peak in October for this county · Commonwealth Edison (ComEd) · 8 min ago

• Commonwealth Edison (ComEd) outage map (Kubra Storm Center): 32 entries for this county · Commonwealth Edison (ComEd) · read 8 min ago

Entries are what each state or utility feed lists for this county: incidents, closures or outage areas. We count them; we do not reproduce them.

2 sources here, none answering with current records.

Quiet

• Rail accidents and crossings (FRA): No reported accident or crossing collision here with a release, evacuation, injury or death in the latest data · Federal Railroad Administration · read Oct 26, 8:27 AM CDT
• Gasoline prices (EIA): No weekly move of 10 cents or more · U.S. Energy Information Administration · read Oct 26, 8:27 AM CDT

Background

• Gasoline prices (EIA)
  Regular gasoline, Chicago, week of 2026-10-19: $4.705 a gallon, up 1 cents from the week before. U.S. Energy Information Administration
• Gasoline prices (EIA)
  Regular gasoline, Midwest (PADD 2), week of 2026-10-19: $4.145 a gallon, up 0 cents from the week before. U.S. Energy Information Administration
• Employment and wages (QCEW)
  Q1 2026: 94,945 jobs (95,051 a year earlier); $1,104 average weekly wage ($1,077 a year earlier). BLS (QCEW)

Each line is the source's own fields, linked to the source. Unusual is this county against its own history, never against other counties. FRA posts about three months after an accident, so its lines are reported, not breaking. Last read: BLS (QCEW) Oct 12, 8:25 AM CDT; U.S. Energy Information Administration Oct 26, 8:27 AM CDT; Federal Railroad Administration Oct 26, 8:27 AM CDT.

Quiet

• Non-native species (USGS NAS): No new non-native species alert here in the last 30 days · USGS Nonindigenous Aquatic Species (NAS) · read Oct 12, 7:04 PM CDT
• Bird flu in wild birds (APHIS): No detection in wild birds here in the last 30 days · USDA APHIS · read Oct 26, 8:27 AM CDT
• Introduced species (iNaturalist): No introduced species newly recorded here · iNaturalist · read 7 min ago

Background

• Introduced species (iNaturalist)
  9 research-grade observations of introduced species here in the last 30 days. iNaturalist

Each line is the source's own fields, linked to the source. Unusual is this county against its own history, never against other counties. Bird flu detections are reported in our words with a link to USDA APHIS; its records are not reproduced. iNaturalist observations are shown only under CC0 or CC-BY, with the observer credited; others are counted. Observations with an obscured location are never placed on a county. Last read: USGS Nonindigenous Aquatic Species (NAS) Oct 12, 7:04 PM CDT; iNaturalist Oct 29, 9:26 AM CDT; USDA APHIS Oct 26, 8:27 AM CDT.

Quiet

• Historic places in harm’s way: No listed place here inside an active wildfire perimeter, warning area or flood zone · National Weather Service · read 3 min ago
• National Register nominations (Federal Register): No nomination here under review · National Park Service (Federal Register) · read 33 min ago
• National Register listings (NPS): No listing or removal here in the last 30 days · National Park Service · read Oct 12, 8:25 AM CDT

Background

• National Register nominations (Federal Register)
  Stickney, George, House (Additional Documentation), 1904 Cherry Valley Rd., Bull Valley (McHenry County, Illinois), reference AD79003115: nominated, comments due 2026-09-29. National Park Service (Federal Register)
• National Register listings (NPS)
  12 properties on the National Register in this county. National Park Service

Each line is the source's own fields, linked to the source. Sites whose location is restricted are never shown. A place inside a hazard area is our overlay of open maps, as of the hazard’s own time; it says nothing of damage. Last read: National Park Service Oct 12, 8:25 AM CDT; National Park Service (Federal Register) Oct 29, 9:00 AM CDT; National Weather Service Oct 29, 9:30 AM CDT.