Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Wichita KS
409 PM CDT Tue Aug 18 2026
KSZ032-033-047>053-067>072-082-083-091>096-098>100-191345-
Russell-Lincoln-Barton-Ellsworth-Saline-Rice-McPherson-Marion-Chase-
Reno-Harvey-Butler-Greenwood-Woodson-Allen-Kingman-Sedgwick-Harper-
Sumner-Cowley-Elk-Wilson-Neosho-Chautauqua-Montgomery-Labette-
409 PM CDT Tue Aug 18 2026
This hazardous weather outlook is for portions of central Kansas,
east central Kansas, south central Kansas and southeast Kansas.
.DAY ONE...Tonight
Heat indices between 100 and 106 degrees are expected early this
evening across much of south central Kansas. See latest Heat
Advisory for more details.
Thunderstorm chances are expected to increase this evening across
central Kansas, and persist through the night, mainly along and
northeast of a line extending from Great Bend to Newton to Chanute.
A few strong to severe thunderstorms are possible, capable of large
hail and damaging winds.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
A few storms may linger into Wednesday morning, mainly across
central Kansas into the Flint Hills. Severe storms are not expected
with this activity. A few storms will also be possible Thursday
night across central Kansas. A few strong storms appear possible
with this activity.
Heat indices greater than 100 degrees are possible on Wednesday
afternoon along the Kansas and Oklahoma border. More widespread
heat indices greater than 100 degrees are expected again on
Saturday, Sunday, and Monday impacting much of south-central and
southeast Kansas.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated tonight.
&&
For a graphical version of this information, see our webpage at:
https://www.weather.gov/erh/ghwo?wfo=ict
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
309 PM CDT Tue Aug 18 2026
IAZ033>039-044>050-057>062-070>075-081>086-092>097-192015-
Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-
Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-
Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-
Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-
Wayne-Appanoose-Davis-
309 PM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...This afternoon and tonight
A Marginal (1 out of 5) Risk for severe weather exists over the
area this evening. Damaging winds and heavy rain are the main
threats, while small hail is also possible.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Occasional storm chances persist through the end of the week,
primarily over the southwest half of Iowa on Wednesday and over
northwest Iowa Thursday evening.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Springfield MO
Issued by National Weather Service St Louis MO
225 PM CDT Tue Aug 18 2026
KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-191930-
Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon-
St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas-
Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton-
Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone-
Taney-Ozark-Oregon-
225 PM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of the Missouri
Ozarks and extreme southeast Kansas.
.DAY ONE...Today and Tonight.
Hot and humid conditions continue this afternoon. Heat index
values of 105 to 110 are possible in southwest Missouri and
eastern Kansas.
A few severe thunderstorms are possible tonight, mainly in central
Missouri. Damaging winds and heavy rainfall are the primary
threats.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Hot and humid conditions are possible again across southwest
Missouri on Wednesday. Another round of thunderstorms is possible
Wednesday evening in southern Missouri. Damaging winds are the
primary threat.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed through tonight.
&&
More detailed information can be accessed at:
http://www.weather.gov/sgf/dsspacket
This product in graphical format...along with other weather...
hydrological and climate information...at
http://www.weather.gov/sgf
$$
WFO SGF
Hazardous Weather Outlook
National Weather Service Topeka KS
159 PM CDT Tue Aug 18 2026
KSZ008>012-020>024-026-034>040-054>056-058-059-191900-
Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley-
Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris-
Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson-
159 PM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of central Kansas,
east central Kansas, north central Kansas, and northeast Kansas.
.DAY ONE...This Afternoon and Tonight
There is a slight risk for severe storms this evening into tonight
across the entire area. If storms can strengthen enough, they could
be capable of damaging wind gusts, small hail, and heavy rainfall.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
There is a marginal risk for severe storms Wednesday afternoon and
night across the entire area. If storms develop, they could be
capable of damaging wind gusts and large hail.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to relay reports of hail, damaging
wind gusts, and flooding.
&&
More detailed information can be found at:
www.weather.gov/media/top/DssPacket.pdf
$$
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
0505 AM CDT Tue Aug 18 2026
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-191005-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
0505 AM CDT Tue Aug 18 2026
This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.
.DAY ONE...Through tonight.
Please go to https://weather.gov/media/eax/DssPacket.pdf for more information on
potential weather hazards.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
The probability for widespread hazardous weather is low.
.KEY MESSAGES...
- Severe thunderstorms are possible today and tonight, with the
most likely timing from late this evening through the
overnight hours.
- Near-normal temperatures likely Wednesday into early next week
with low precipitation chances, mainly early next week.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
317 AM CDT Tue Aug 18 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-190830-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
317 AM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...TODAY AND TONIGHT
Isolated severe thunderstorms are possible late this afternoon
and evening. Damaging winds are the primary threat. Locally
heavy rain is also possible.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible this afternoon and evening.
$$
