Stephenson County COAD

05/17/2026

05/17/2026

A strong thunderstorm will impact portions of east central Jo Daviess and Stephenson Counties through 1100 AM CDT
Instruction: If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.
Description: At 1017 AM CDT, Doppler radar was tracking a strong thunderstorm near Stockton, or 14 miles west of Freeport, moving northeast at 45 mph. HAZARD...Wind gusts up to 50 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Strong winds could break small tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Freeport, Lena, Stockton, Cedarville, Davis, Dakota, Winslow, Rock City, Nora, Buena Vista, Rock Grove, Oneco, Orangeville, Kent, Eleroy, Damascus, Lake Le-Aqua- na State Park, Mc Connell, Scioto Mills, and Winneshiek.

05/17/2026

Special Weather Statement
Special Weather Statement issued May 17 at 10:17AM CDT by NWS Quad Cities IA IL

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Areas Affected

Jo Daviess; Stephenson

Details

At 1017 AM CDT, Doppler radar was tracking a strong thunderstorm near
Stockton, or 14 miles west of Freeport, moving northeast at 45 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Strong winds could break small tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.

Locations impacted include...
Freeport, Lena, Stockton, Cedarville, Davis, Dakota, Winslow, Rock
City, Nora, Buena Vista, Rock Grove, Oneco, Orangeville, Kent,
Eleroy, Damascus, Lake Le-Aqua-
na State Park, Mc Connell, Scioto Mills, and Winneshiek.
If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

05/16/2026

Just issued

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 207 IN EFFECT UNTIL 5 AM CDT SATURDAY FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 3 COUNTIES IN NORTHWEST ILLINOIS CARROLL JO DAVIESS STEPHENSON IN IOWA THIS WATCH INCLUDES 11 COUNTIES IN EAST CENTRAL IOWA BENTON CEDAR CLINTON IOWA JACKSON JOHNSON JONES LINN IN NORTHEAST IOWA BUCHANAN DELAWARE DUBUQUE THIS INCLUDES THE CITIES OF ANAMOSA, CEDAR RAPIDS, CLINTON, DUBUQUE, FREEPORT, GALENA, INDEPENDENCE, IOWA CITY, MANCHESTER, MAQUOKETA, MARENGO, MOUNT CARROLL, TIPTON, AND VINTON.

05/13/2026

05/12/2026

Special Weather Statement
Special Weather Statement issued May 12 at 6:01PM CDT by NWS Quad Cities IA IL

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Areas Affected

Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Keokuk; Washington; Louisa; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island

Details

Blustery southwest winds will continue to switch to the west and
northwest behind a passing frontal system and gust 40 to 45 MPH
at times. These gusty winds may also produce areas of blowing dust
downstream of bare agricultural fields through sunset. The dust
may result in sudden and localized visibility reductions to under
a half mile at times. If traveling in open and rural areas this
evening, make sure to slow down and exercise caution.

05/10/2026

URGENT - WEATHER MESSAGE
National Weather Service Quad Cities IA IL
1157 AM CDT Sun May 10 2026
..FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM CDT MONDAY...

* WHAT...Temperatures in the mid to upper 30s may result in frost
formation.

* WHERE...In Illinois, Jo Daviess and Stephenson Counties. In Iowa,
Buchanan, Delaware, and Dubuque Counties.

* WHEN...From 2 AM to 8 AM CDT Monday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

05/06/2026

Frost Advisory issued May 6 at 1:17PM CDT until May 7 at 8:00AM CDT by NWS Quad Cities IA IL

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Areas Affected

Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Iowa; Johnson; Cedar; Clinton; Muscatine; Scott; Jo Daviess; Stephenson; Carroll; Whiteside; Rock Island; Henry; Bureau; Putnam

Details

* WHAT...Temperatures in the lower to middle 30s will result in
frost formation.

* WHERE...Portions of north central and northwest Illinois and east
central and northeast Iowa.

* WHEN...From 1 AM to 8 AM CDT Thursday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
Take steps now to protect tender plants from the cold.

05/01/2026

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
247 PM CDT Fri May 1 2026

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
DAY ONE...TONIGHT

Isolated thunderstorms are possible through this evening.
Lightning is the primary hazard.

A Frost Advisory remains in effect for areas mainly northwest of
a line from Kahoka, Missouri to Sterling, Illinois late tonight
through daybreak on Saturday. Lows falling into the lower to
middle 30s will lead to frost concerns for sensitive vegetation.
DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Isolated strong storms with gusty winds and hail are possible
Sunday afternoon, mainly south of Interstate 80.

More Thunderstorms may occur again Monday afternoon and evening.
The severe potential with these storms is still uncertain at this
time.

05/01/2026

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
828 PM CDT Thu Apr 30 2026

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
DAY ONE...TONIGHT

Frost is possible for areas along and north of Highway 30
tonight, where we will see temperatures in the low to mid 30s.
Middle to upper 30s can be expected for areas south, where there
may be patchy frost.
DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Frost is possible for areas along and north of Highway 30 Friday
night into Saturday morning, where we will see temperatures in
the low to mid 30s. Middle to upper 30s can be expected for areas
south, where there may be patchy frost.