Severe Thunderstorm Warning
Severe Weather Statement
National Weather Service Chicago/Romeoville
524 PM CDT Fri Aug 21 2026
ILC037-212300-
/O.CON.KLOT.SV.W.0261.000000T0000Z-260821T2300Z/
De Kalb IL-
524 PM CDT Fri Aug 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR SOUTHERN DE KALB COUNTY...
At 524 PM CDT, a severe thunderstorm was located near Malta, or near
Shabbona, moving east southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
DeKalb, Shabbona, Hinckley, Waterman, Malta, and Lee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of
a building.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4195 8894 4186 8860 4170 8860 4178 8894
TIME...MOT...LOC 2224Z 288DEG 22KT 4185 8889
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RC
Severe Weather Statement
National Weather Service Quad Cities IA/IL
534 PM CDT Fri Aug 21 2026
ILC085-177-212315-
/O.CON.KDVN.SV.W.0279.000000T0000Z-260821T2315Z/
Jo Daviess IL-Stephenson IL-
534 PM CDT Fri Aug 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR EASTERN JO DAVIESS AND SOUTHWESTERN STEPHENSON COUNTIES...
At 533 PM CDT, a severe thunderstorm was located over Apple Canyon
Lake, or 13 miles east of Galena, moving southeast at 30 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Stockton, Elizabeth, Woodbine, Scales Mound, Apple River, Schapville,
Massbach, Loran, Guilford, Kent, Elizabeth Fairgrounds, Canyon Camp,
Willow, Apple River Canyon State Park, Stockton Airport, Elmoville,
and Apple Canyon Lake.
This also includes Apple River Canyon State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
sturdy building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature`s leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 4235 8985 4220 8985 4220 9013 4244 9034
4250 9031 4250 9007
TIME...MOT...LOC 2233Z 325DEG 25KT 4241 9017
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Uttech
Severe Thunderstorm Warning
IAC061-097-105-212330-
/O.NEW.KDVN.SV.W.0278.260821T2224Z-260821T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
524 PM CDT Fri Aug 21 2026
The National Weather Service in the Quad Cities has issued a
* Severe Thunderstorm Warning for...
Northwestern Jackson County in east central Iowa...
Southwestern Dubuque County in northeastern Iowa...
Northeastern Jones County in east central Iowa...
* Until 630 PM CDT.
* At 523 PM CDT, a severe thunderstorm was located near Fillmore
Recreation Area, or 15 miles southwest of Dubuque, moving southeast
at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Cascade, Farley, La Motte, Bernard, Zwingle, Otter Creek, South
Gary Owen, Garry Owen, Fillmore, Fillmore Recreation Area, Crab
Town, Ironhills, and Washington Mills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
sturdy building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature`s leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 4237 9108 4245 9101 4230 9058 4211 9077
TIME...MOT...LOC 2223Z 307DEG 18KT 4237 9095
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
JTS
