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Weather alerts in Illinois
All active National Weather Service alerts, each paired with the event code an EAS decoder at your station will see. Refreshed every two minutes.
7 active alerts, most severe first. Times are the issuing office's local time.
| Alert | EAS code | Area | Until | From |
|---|---|---|---|---|
Freeze WarningSevere · updated
Details* WHAT...Sub-freezing temperatures are expected. * WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, Kane, and McHenry Counties. * WHEN...From 5 AM to 8 AM CDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. What to do: Take steps now to protect tender plants from the cold. |
not sent over EAS | Winnebago; Boone; McHenry; Ogle; Lee; De Kalb; Kane | Oct 17, 8:00 AM | NWS Chicago IL |
Freeze WarningSevere · updated
Details* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Portions of northwest Illinois and east central, northeast, and southeast Iowa. * WHEN...From 1 AM to 9 AM CDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. What to do: Take steps now to protect tender plants from the cold. |
not sent over EAS | Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Jefferson; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island | Oct 17, 9:00 AM | NWS Quad Cities IA IL |
Frost AdvisoryMinor · updated
Details* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...La Salle and Kendall Counties. * WHEN...From 5 AM to 8 AM CDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. What to do: Take steps now to protect tender plants from the cold. |
not sent over EAS | La Salle; Kendall | Oct 17, 8:00 AM | NWS Chicago IL |
Frost AdvisoryMinor · updated
Details* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Lake IL County. * WHEN...From 5 AM to 8 AM CDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. What to do: Take steps now to protect tender plants from the cold. |
not sent over EAS | Lake | Oct 17, 8:00 AM | NWS Chicago IL |
Frost AdvisoryMinor · updated
Details* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of north central, northwest, and west central Illinois, southeast Iowa, and northeast Missouri. * WHEN...From 1 AM to 9 AM CDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. What to do: Take steps now to protect tender plants from the cold. |
not sent over EAS | Louisa; Henry; Des Moines; Van Buren; Lee; Henry; Bureau; Putnam; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark | Oct 17, 9:00 AM | NWS Quad Cities IA IL |
Frost AdvisoryMinor
Details* WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...From 1 AM to 9 AM CDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. What to do: Take steps now to protect tender plants from the cold. |
not sent over EAS | Greene; Macoupin; Montgomery; Adams; Brown; Pike; Calhoun; Jersey; Knox; Lewis; Shelby; Marion; Monroe; Ralls; Pike; Audrain; Lincoln | Oct 17, 9:00 AM | NWS St Louis MO |
Frost AdvisoryMinor
Details* WHAT...Clear skies and light winds will allow temperatures to drop to between 33 and 35 degrees tonight. This will result in frost formation. * WHERE...Portions of central and west central Illinois. * WHEN...From 1 AM to 9 AM CDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. What to do: Take steps now to protect tender plants from the cold. |
not sent over EAS | Knox; Stark; Peoria; Marshall; Woodford; Fulton; Tazewell; Schuyler; Mason; Logan; Cass; Menard; Scott; Morgan; Sangamon; Christian | Oct 17, 9:00 AM | NWS Lincoln IL |
Is your EAS decoder receiving these?
Nexus Broadcast installs and tests EAS decoders, sets monitoring assignments, and keeps stations inspection-ready.
How these alerts work
- Alerts are the National Weather Service CAP alerts (api.weather.gov), refreshed every two minutes. Tests and exercises are left out; only actual alerts appear.
- The EAS code comes from the event code in the SAME header of the alert (TOR, SVR or FFW, for example). Alerts the Weather Service does not put out over EAS, including most advisories, read "not sent over EAS".
- Your state EAS plan and your decoder settings decide whether your station relays a given alert.
Alert text comes from the National Weather Service. Neither the NWS nor the FCC produces this page.