McHenry County, Illinois
To view the watches and warnings information that we have available you will need to select your city, county, or state first.
Enter City, State or Zip Code to Select a Location from the List
Watch/Warnings
Click to view enlarged map

The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: McHenry County, Illinois
« View county list

Air Quality Alert
ILZ005-006-012>014-020>022-241015-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...AURORA...ELGIN...
WHEATON...CHICAGO...OSWEGO...MORRIS...JOLIET
512 AM CDT SAT JUL 23 2016

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY HAS DETERMINED THAT AN
AIR POLLUTION ACTION DAY WILL BE DECLARED FOR THE GREATER CHICAGO
METROPOLITAN AREA AND IS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT.

AN AIR POLLUTION ACTION DAY IS DECLARED WHEN WEATHER CONDITIONS ARE
SUCH THAT WIDESPREAD OZONE AND OR PARTICULATE LEVELS ARE EXPECTED TO
BE AT OR ABOVE THE UNHEALTHY FOR SENSITIVE GROUPS CATEGORY OF THE
AIR QUALITY INDEX.

ACTIVE CHILDREN AND ADULTS ESPECIALLY PEOPLE WITH PULMONARY OR
RESPIRATORY DISEASE SUCH AS ASTHMA SHOULD LIMIT PROLONGED OUTDOOR
ACTIVITY.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. RESIDENTS ARE ALSO URGED TO REDUCE
POLLUTION LEVELS. AQI FORECAST AND TIPS ON HOW YOU CAN REDUCED YOUR
EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG.

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US
AND AT WWW.AIRNOW.GOV. MEDIA CONTACT...217 299 6057.

$$

Flood Warning
ILC007-111-201-241600-
/O.NEW.KLOT.FA.W.0005.160724T0359Z-160724T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO IL-BOONE IL-MCHENRY IL-
1059 PM CDT SAT JUL 23 2016

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* FLOOD WARNING FOR...
SOUTHEASTERN WINNEBAGO COUNTY IN NORTH CENTRAL ILLINOIS...
SOUTHERN BOONE COUNTY IN NORTH CENTRAL ILLINOIS...
SOUTHWESTERN MCHENRY COUNTY IN NORTHEASTERN ILLINOIS...

* UNTIL 1100 AM CDT SUNDAY

* AT 1058 PM CDT...RADAR ESTIMATES INDICATED THAT HEAVY RAINFALL OF
UP TO FOUR INCHES HAVE FALLEN SINCE LATE SATURDAY AFTERNOON. LIGHT
RAIN WAS ENDING...HOWEVER FLOODING WILL TAKE SOME TIME TO SUBSIDE
INTO EARLY SUNDAY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ROCKFORD...BELVIDERE...MARENGO...CHERRY VALLEY...UNION AND NEW
MILLFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4234 8854 4217 8854 4218 8909 4224 8910

$$

National Weather Service

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."
Weather Alerts by Type
Air Quality Alert
Coastal Flood Warning
Excessive Heat Warning
Excessive Heat Watch
Fire Warning
Fire Weather Warning
Flash Flood Warning
Flash Flood Watch
Flood Advisory
Flood Warning
Heat Advisory
High Surf Advisory
High Surf Warning
Special Weather Statement
Tropical Storm Warning
Additional Severe Weather Maps
Severe Outlook Today
Severe Outlook Today
WSI's Severe Outlook Map displays current Watches, Warnings and Advisories via County Fill colors.
Severe Outlook Tomorrow
Severe Outlook Tomorrow
WSI's Severe Outlook Forecast Map displaying projected Watches, Warnings and Advisories.
THUNDERcast
THUNDERcast
The THUNDERcast map shows areas of probability for regional or national thunderstorms for the current day.
1Km Storm Watch
1Km Storm Watch
The 1Km map allows you to view 1 kilometer (km) resolution radar imagery both nationally and regionally.
Metro Storm Watch
Metro Storm Watch
The Metro map allows you to view 1 kilometer (km) resolution radar imagery.
Advertisements
Track Severe Weather on mobile