412
FXUS63 KOAX 042314
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
614 PM CDT THU JUN 4 2026
KEY MESSAGES
- MULTIPLE ROUNDS OF STORMS ARE EXPECTED THROUGH FRIDAY. SEVERE
WEATHER IS POSSIBLE WITH LARGE HAIL, DAMAGING WINDS, AND FLASH
FLOODING THE MAIN CONCERNS. AN ISOLATED TORNADO IS ALSO
POSSIBLE.
- DAILY CHANCES FOR SHOWERS AND STORMS ARE EXPECTED ACROSS AT
LEAST SOME OF THE AREA FROM SATURDAY THROUGH WEDNESDAY AS A
SERIES OF DISTURBANCES MOVE THROUGH THE REGION.
- EXPECT A RETURN TO THE 90S MONDAY THROUGH WEDNESDAY AS A RIDGE
SETS UP TO OUR NORTHEAST. EXCESSIVE HEAT MAY BE POSSIBLE.
DISCUSSION
ISSUED AT 1217 PM CDT THU JUN 4 2026
AN ACTIVE PERIOD OF WEATHER BEGINS TODAY. A CONVECTIVELY, REINFORCED
SHORTWAVE IS LIFTING NORTHEAST OVER THE CENTRAL PLAINS THIS MORNING.
A LOW-LEVEL MCV IS ALSO EVIDENT SOUTH OF KUEX. THESE FEATURES WILL
SUPPORT THE RE-INTENSIFICATION AND DEVELOPMENT OF STORMS THROUGH
THIS AFTERNOON INTO THIS EVENING. A FEW STRONGER STORMS ARE ALREADY
DEVELOPING ACROSS NORTHERN KANSAS WITHIN THE BROADER MCV. AS WE MOVE
THROUGH THE REMAINDER OF THIS MORNING INTO THE AFTERNOON, DAYTIME
HEATING INTO THE UPPER 70S TO LOWER 80S WILL HELP DESTABILIZE THE
ENVIRONMENT. WHILE OVERALL SHEAR REMAINS MARGINAL (20-30KTS), LOW-
LEVEL SRH WILL BE HIGHER (200 M^2/S^2) AND MORE SUPPORTIVE OF
ORGANIZED STORMS. A VERY MOIST ENVIRONMENT HAS TAKEN SHAPE AS WELL.
THESE FACTORS WILL SUPPORT AT LEAST SOME RISK OF DAMAGING WINDS OR A
BRIEF TORNADO OR TWO. LARGE HAIL IS LESS LIKELY WITH A VERY MOIST
ENVIRONMENT AND A HIGH FREEZING LEVEL. THE OTHER SIGNIFICANT CONCERN
IS FLASH FLOODING. PRECIPITABLE WATER VALUES ARE EXCEEDING 1.5"
WHICH IS ABOVE THE 90TH PERCENTILE FOR TODAY. THIS SUPPORTS
TORRENTIAL RAINFALL WITH RAINFALL RATES EASILY BECOMING AS HIGH AS
1+" PER HOUR. WITH THIS CONCERN, A FLASH FLOOD WATCH IS IN EFFECT
FOR SOUTHEAST NEBRASKA AND SOUTHWEST IOWA INTO TONIGHT. THE ONE
LIMITING FACTOR IS THAT ONCE STORMS DEVELOP, THE EVENTUAL COLD POOL
SHOULD KEEP STORMS MOVING TO THE EAST, LIMITING TRAINING POTENTIAL.
ANY SHOWERS AND STORMS TAPER OFF AFTER MIDNIGHT AS TEMPERATURES
SLOWLY COOL INTO THE 60S.
HEADING INTO FRIDAY, A LULL IS ANTICIPATED AS SUBSIDENCE AND MID-
LEVEL HEIGHT RISES BEHIND TODAY'S SYSTEM KEEPS A CAP ON STORMS
THROUGHOUT MUCH OF THE DAY. IT WILL GET HOT AS A RESULT, WITH
TEMPERATURES EASILY PUSHING THE UPPER 80S TO NEAR 90. PLENTIFUL
MOISTURE REMAINS IN PLACE AND THIS WILL BE A LOADED GUN BY LATE
AFTERNOON. VERY HIGH LEVELS OF INSTABILITY ARE ANTICIPATED WITH CAPE
VALUES RISING TO BETWEEN 3000-4000 J/KG. A WEAK DISTURBANCE MOVING
INTO THE REGION AND A BROADER TROUGH OVER THE UPPER MISSISSIPPI
RIVER VALLEY HELPS TO ERODE THE CAP THROUGH EVENING. AN ISOLATED
STORM REMAINS POSSIBLE THROUGH THE LATE AFTERNOON, BUT EVENTUAL
STORM DEVELOPMENT APPEARS MOST LIKELY ALONG A SLOWLY SOUTHWARD
SAGGING FRONT. ALONG AND BEHIND THE FRONT, STORMS ARE ANTICIPATED.
THE HIGH INSTABILITY AND EFFECTIVE SHEAR AROUND 30 KTS SUPPORT A
RISK OF LARGE HAIL, PERHAPS VERY LARGE, DAMAGING WINDS, AND PERHAPS
A TORNADO. THAT SAID, CONTINUED STORM DEVELOPMENT ALONG THE FRONT
MAY EVENTUALLY LIMIT THE SEVERE RISK. THIS THEN LEADS TO THE OTHER
HAZARD ON FRIDAY OF FLASH FLOODING. SIMILAR TO TODAY, VERY HIGH
PRECIPITABLE WATER AND SLOW-MOVING STORMS SUPPORT TORRENTIAL
RAINFALL. IF STORMS TRAIN ALONG THE FRONT, ESPECIALLY ACROSS
SOUTHEAST NEBRASKA AND SOUTHWEST IOWA, THIS MAY BE ESPECIALLY
CONCERNING. A FLASH FLOOD WATCH MAY BE REQUIRED WITH THIS POTENTIAL.
THE PATTERN QUIETS DOWN A LITTLE THIS WEEKEND AS A TROUGH PASSES
SOUTH OF THE AREA. THIS LIMITS OUR THUNDERSTORM POTENTIAL ON
SATURDAY. IT WILL BE MUGGY AS TEMPERATURES WARM INTO THE UPPER 80S.
STORMS RETURN TO THE FORECAST ON SUNDAY AS A LONG SERIES OF
DISTURBANCES MOVES ACROSS THE AREA HEADING INTO NEXT WEEK. THESE
DISTURBANCES LIFT OUT OF THE ROCKIES TOWARDS THE NORTH PLAINS AS A
SUMMERTIME PATTERN TAKES SHAPE. A BUILDING RIDGE OVER THE CENTRAL
AND EASTERN CONUS WITH A TROUGH OVER THE WESTERN CONUS SUPPORTS
WARMING TEMPERATURES AND CONTINUED STORM CHANCES EACH DAY.
WIDESPREAD 90S ARE LIKELY BY TUESDAY BEFORE APPROACHING THE MID TO
UPPER 90S BY THE END OF NEXT WEEK. ISOLATED SEVERE WEATHER REMAINS
POSSIBLE WITH THUNDERSTORM CHANCES, BUT THE MAIN HAZARD BEGINS TO
SHIFT TOWARDS EXCESSIVE HEAT AS IT REMAINS MUGGY AS TEMPERATURES
CLIMB.
AVIATION /00Z TAFS THROUGH 00Z SATURDAY/
ISSUED AT 604 PM CDT THU JUN 4 2026
MVFR CONDITIONS CONTINUE AT THE TERMINALS EARLY IN THE FORECAST
PERIOD AS SHOWERS MOVE ACROSS THE REGION.
KOFK: SHOWERS HAVE TAPERED OFF AT THE TERMINAL AND ADDITIONAL
SHOWER/STORM ACTIVITY IS NOT CURRENTLY ANTICIPATED DURING THE
FORECAST PERIOD. CEILINGS WILL FLUXUATE BETWEEN VFR AND MVFR
THROUGH THE OVERNIGHT HOURS, RETURNING TO VFR BY 15Z. EXPECT
LIGHT WINDS OUT OF THE SOUTHEAST THROUGH SUNRISE, WITH WINDS
SWITCHING TO THE EAST BY 14Z.
KOMA: MVFR CONDITIONS PERSIST AT THE TERMINAL THROUGH THE
EVENING HOURS AND INTO TONIGHT. A MENTION OF A FEW RAIN SHOWERS
WAS MAINTAINED IN PREVAILING CONDITIONS THROUGH 02Z AS AN
ONGOING LINE OF SHOWERS AND WEAK STORMS EXTENDING FROM TECUMSEH
TO KCBF CONTINUES TO MOVE TO THE NORTHEAST. WINDS BECOME
SOUTHERLY AROUND 5-10KTS AFTER MIDNIGHT.
KLNK: MVFR CONDITIONS CONTINUE AT THE TERMINAL THROUGH AROUND
19Z BEFORE IMPROVING TO VFR. A FEW SHOWERS ARE BEGINNING TO POP
UP SOUTHWEST OF THE TERMINAL AND ARE MOVING NORTHEAST. AS A
RESULT, A MENTION OF VICINITY SHOWERS IS IN THE FORECAST FOR THE
NEXT FEW HOURS. THE OVERALL LINE OF SHOWER/WEAK THUNDERSTORM
ACTIVITY WILL CONTINUE TO MOVE TO THE NORTHEAST OVER THE NEXT
FEW HOURS. EXPECT SOUTHEAST WINDS TO BECOME SOUTHERLY AROUND 06Z
WITH WINDS GENERALLY 5-10KTS AFTER 09Z.
OAX WATCHES/WARNINGS/ADVISORIES
NE...FLOOD WATCH UNTIL 4 AM CDT FRIDAY FOR NEZ052-053-066>068-
088>093.
IA...FLOOD WATCH UNTIL 4 AM CDT FRIDAY FOR IAZ069-079-080-090-091.
DISCUSSION...CHEHAK
AVIATION...ANW
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page