788
FXUS63 KEAX 191924
AFDEAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
224 PM CDT WED AUG 19 2026
KEY MESSAGES
* ISOLATED TO SCATTERED STORMS POSSIBLY THIS AFTERNOON INTO THE
EVENING HOURS. BEST CHANCES FOR STORMS ARE ALONG AND NORTH OF
HIGHWAY 36, THOUGH EVOLUTION REMAINS SOMEWHAT UNCLEAR.
* PATCHY FOG POSSIBLE TONIGHT IN AREAS THAT SEE RAINFALL THIS
EVENING.
* NEAR SEASONAL TEMPERATURES EXPECTED LATE THIS WEEK INTO THE
WEEKEND, BUT COULD SEE PERIODIC CHANCES OF STORMS AS WAVES
PASS THROUGH IN NORTHWEST FLOW ALOFT.
DISCUSSION
ISSUED AT 223 PM CDT WED AUG 19 2026
COMPLICATED NEAR TERM FORECAST WITH A CLUSTER OF STORMS ACROSS
EASTERN NEBRASKA DIVING SOUTHEAST. THESE STORMS HAVE DEVELOPED AN
MCV, WHICH MAY KEEP THE TRAJECTORY SOUTHEAST; HOWEVER, 850-300 MB
MEAN WIND IS MORE WEST TO EAST, AND COMPLEX MAY TRY TO DEVELOP
FARTHER EAST WITH TIME. HAVE STARTED TO SEE SIGNS OF DEVELOPMENT
ALONG OUTFLOW- CONVERGENCE BOUNDARY IN THE VICINITY OF HIGHWAY 34.
THIS ACTIVITY SHOULD LARGELY MOVE WEST TO EAST FOLLOWING THE
MEAN FLOW AND THE CAP GRADIENT/ BUT MAY TRY TO BUILD SOUTH WITH
TIME AS THE BOUNDARY MOVES SOUTH. ALONG THE BOUNDARY, THERE IS
THE POTENTIAL FOR A FUNNEL CLOUD OR TWO, ESPECIALLY IF STORMS
ARE ABLE TO ROOT ALONG THE SLOW MOVING BOUNDARY.
ABUNDANT CLOUD COVER HAS LIMITED INSTABILITY ACROSS MUCH OF MISSOURI
TODAY, BUT PARTIAL CLEARING AFTER 1730Z MAY LEAD TO INCREASING
INSTABILITY ALONG AND NORTH OF HIGHWAY 36. ELEVATED CAPE VALUES OF
1500-2000 J/KG AND EFFECTIVE SHEAR OF 40-45 KNOTS MAY STILL CREATE A
SEVERE WEATHER THREAT WITH LARGE HAIL AND DAMAGING WINDS BEING THE
PRIMARY THREATS ACROSS NORTHERN MISSOURI THROUGH THE 20-02Z TIME
FRAME. STORM MOVEMENT SHOULD BE SUFFICIENT (25-35 KNOTS) THAT FLASH
FLOODING THREAT SHOULD BE FAIRLY LIMITED WITH THE EXCEPTION OF SLOW
MOVING STORMS THAT ARE TIED TO THE OUTFLOW BOUNDARY.
WITH ALL THE SAID, IF STORMS ARE ABLE TO DEVELOP IN WHAT LOOKS TO BE
A WEAKLY CAPPED ENVIRONMENT ACROSS EASTERN KANSAS, STORMS MAY
TRY TO BUILD FARTHER SOUTH AND EAST THOUGH INSTABILITY MAY BE
FAIRLY LIMITED.
WEAK SURFACE RIDGE ACROSS SOUTHERN MINNESOTA IS EXPECTED TO BUILD
SOUTH TOWARDS SOUTHERN IOWA OVERNIGHT. THIS WILL LEAD TO LIGHT
NORTHEAST WINDS AND THE POTENTIAL FOR FOG TO DEVELOP IN AREAS THAT
SEE RAIN THIS EVENING. GREATEST LIKELIHOOD WILL BE ACROSS
NORTHERN MISSOURI.
WEAK FLOW MAY LIMIT MIXING TOMORROW MORNING AND PATCHY FOG MAY
LINGER A BIT LONGER THAN ONE MIGHT THINK. SURFACE RIDGE IS GRADUALLY
EXPECTED TO SHIFT EAST TOMORROW AND WITH MORE CLEARING, EXPECT
TEMPERATURES TO WARM CLOSER TO SEASONAL NORMS FOR THIS TIME OF YEAR.
SHORTWAVE DROPPING DOWN IN NORTHWEST FLOW COULD LEAD TO ADDITIONAL
THUNDERSTORMS ACROSS THE UPPER MIDWEST ON FRIDAY. UPPER LEVEL RIDGE
ACROSS THE WESTERN US STRENGTHENS THIS WEEKEND, THOUGH PERIODIC
RIDGE RIDERS LEAD TO PERIODIC POPS THROUGH THE WEEKEND.
AVIATION /18Z TAFS THROUGH 18Z THURSDAY/
ISSUED AT 1237 PM CDT WED AUG 19 2026
CLUSTER OF THUNDERSTORMS BUILDING SOUTHEAST ACROSS EASTERN
NEBRASKA MAY BUILD INTO MISSOURI AFTER 20Z. GUSTY WINDS AND
LARGE HAIL ARE POSSIBLE WITH THE STORMS NORTHEAST OF A LINE FROM
NORTHWEST MISSOURI TO MOBERLY MO. LIGHT NORTHEAST WINDS ARE
EXPECTED TO DEVELOP BEHIND THE COMPLEX, AND MAY SEE FOG DEVELOP
TOWARDS SUNRISE THURSDAY. WITH WEAK-LIGHT EASTERLY WINDS, FOG
MAY HANG AROUND LONGER THAN FORECAST MAY INDICATE THURSDAY
MORNING.
EAX WATCHES/WARNINGS/ADVISORIES
MO...NONE.
KS...NONE.
DISCUSSION...BT
AVIATION...BT
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