000
FLUS43 KLSX 202055
HWOLSX
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
355 PM CDT WED MAY 20 2026
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-212100-
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-
355 PM CDT WED MAY 20 2026
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.
DAYS ONE THROUGH SEVEN
THIS AFTERNOON THROUGH TUESDAY.
MORE DETAILED INFORMATION CAN BE ACCESSED AT:
HTTPS://WWW.WEATHER.GOV/MEDIA/LSX/DSSPACKET.PDF
THE AREA FORECAST DISCUSSION IS AVAILABLE AT:
HTTPS://FORECAST.WEATHER.GOV/
PRODUCT.PHP?ISSUEDBY=LSX&PRODUCT=AFD&SITE=LSX
KEY MESSAGES
- COOLER TEMPERATURES WILL CONTINUE THROUGH FRIDAY BEFORE READINGS
WARM
UP CLOSER TO NORMAL LEVELS FOR THE MEMORIAL DAY HOLIDAY
WEEKEND.
- THERE ARE CHANCES OF SHOWERS (AND MAYBE A FEW THUNDERSTORMS)
DAILY FRIDAY ONWARD, WITH THE HIGHEST CHANCES (70-90%) ON
FRIDAY.
NOTE: STARTING MAY 29, 2026, THIS OUTLOOK PRODUCT WILL BE
DISCONTINUED. PLEASE SEE THE ABOVE PRODUCTS FOR MORE DETAILED
FORECAST INFORMATION.
WFO LSX
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