Hazardous Weather Outlook
Issued by NWS St. Louis, MO

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FLUS43 KLSX 182007
HWOLSX

Hazardous Weather Outlook
National Weather Service St Louis MO
307 PM CDT Fri Jul 18 2025

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-192015-
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
307 PM CDT Fri Jul 18 2025

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Tonight.

There is a chance of thunderstorms tonight across portions of the
area.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is a chance of thunderstorms Saturday through Tuesday. There is
a low threat of damaging winds and flash flooding across northeastern
Missouri and west-central Illinois Saturday morning.

A long-duration heat wave is expected to begin along and south of
Interstate 70 into southwestern Illinois on Saturday, expanding to
the rest of the area around Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Pfahler