SEL7

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 157
NWS Storm Prediction Center Norman OK
405 AM CDT Mon Apr 27 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
West-Central and Southwest Illinois
Eastern Missouri

* Effective this Monday morning from 405 AM until 1000 AM CDT.

* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible

SUMMARY...Elevated supercells will continue to pose a threat for
large hail this morning as they move from eastern Missouri into
parts of western Illinois. A thunderstorm cluster capable of
producing mainly severe/damaging winds will also spread into parts
of north-central/eastern Missouri later this morning. A tornado or
two will also be possible with this cluster.

The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 115 miles northwest of
Saint Louis MO to 40 miles east southeast of Poplar Bluff MO. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU7).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...<a href="ww0156.html">WW 156</a>...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
26035.

...Gleason

WOUS64 KWNS 270905
WOU7

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 157
NWS STORM PREDICTION CENTER NORMAN OK
405 AM CDT MON APR 27 2026

SEVERE THUNDERSTORM WATCH 157 IS IN EFFECT UNTIL 1000 AM CDT
FOR THE FOLLOWING LOCATIONS

ILC003-013-061-077-083-119-133-145-149-153-157-163-181-271500-
/O.NEW.KWNS.SV.A.0157.260427T0905Z-260427T1500Z/

IL
. ILLINOIS COUNTIES INCLUDED ARE

ALEXANDER CALHOUN GREENE
JACKSON JERSEY MADISON
MONROE PERRY PIKE
PULASKI RANDOLPH ST. CLAIR
UNION


MOC007-017-019-023-027-031-035-051-055-071-073-093-099-113-123-
127-133-135-137-139-143-151-157-163-173-179-181-183-186-187-189-
201-205-207-219-221-223-510-271500-
/O.NEW.KWNS.SV.A.0157.260427T0905Z-260427T1500Z/

MO
. MISSOURI COUNTIES INCLUDED ARE

AUDRAIN BOLLINGER BOONE
BUTLER CALLAWAY CAPE GIRARDEAU
CARTER COLE CRAWFORD
FRANKLIN GASCONADE IRON
JEFFERSON LINCOLN MADISON
MARION MISSISSIPPI MONITEAU
MONROE MONTGOMERY NEW MADRID
OSAGE PERRY PIKE
RALLS REYNOLDS RIPLEY
SCOTT SHELBY ST. CHARLES
ST. FRANCOIS ST. LOUIS STE. GENEVIEVE
STODDARD WARREN WASHINGTON
WAYNE


MISSOURI INDEPENDENT CITIES INCLUDED ARE

ST. LOUIS CITY


ATTN...WFO...PAH...LSX...