899
FXUS63 KOAX 032325
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
625 PM CDT THU SEP 3 2026
KEY MESSAGES
- HOT AND HUMID WEATHER CONTINUES WITH HEAT INDEX VALUES IN THE
LOW 100S ACROSS SOUTHEAST NEBRASKA AND SOUTHWEST IOWA. A HEAT
ADVISORY REMAINS IN EFFECT THROUGH AT LEAST SATURDAY.
- OPPRESSIVE HEAT WILL CONTINUE INTO NEXT WEEK ALONG WITH SOME
SMALL CHANCES (10-30%) FOR NIGHTLY SHOWERS AND STORMS. WARM
LOWS IN THE 70S WILL PROVIDE LITTLE RELIEF.
DISCUSSION
ISSUED AT 1227 PM CDT THU SEP 3 2026
SPOTTY MORNING SHOWERS AND STORMS DRIFTED ACROSS EASTERN NEBRASKA
AND WESTERN IOWA EARLY THIS MORNING, BEFORE DISSIPATING AND DRIFTING
EAST OF THE AREA. CLOUD COVER LINGERING THROUGH THE MORNING KEPT
TEMPERATURES IN THE MID TO UPPER 80S, BUT AS CLOUDS CLEAR, TEMPS ARE
EXPECTED TO QUICKLY RISE THROUGH THE MID TO UPPER 90S THIS
AFTERNOON. DEWPOINTS REACHING THE LOW TO MID 70S WILL ALLOW HEAT
INDICES TO RISE UP TO 100-105.
MOSTLY CLEAR SKIES AND WELL ABOVE NORMAL TEMPERATURES WILL CONTINUE
THROUGH TOMORROW. OVERNIGHT LOWS WILL ONLY DIP INTO THE MID AND
UPPER 70S TONIGHT, BEFORE RISING BACK INTO THE MID 90S ON FRIDAY
AFTERNOON.
THE UPPER LEVEL PATTERN WILL CONTINUE TO BE DOMINATED BY A LARGE
RIDGE OVER THE NATION'S MID SECTION THIS WEEKEND AND INTO NEXT WEEK.
TEMPERATURES WILL CONTINUE TO REMAIN WELL ABOVE SEASONAL NORMALS,
WITH HIGHS FORECAST TO REMAIN IN THE 90S THROUGH MIDWEEK. THE
CUMULATIVE EFFECTS OF BACK TO BACK HOT DAYS, AND LITTLE RELIEF WITH
OVERNIGHT LOWS IN THE LOW TO MID 70S, WILL CONTINUE TO PUSH HEAT
RISK INTO THE MAJOR TO EXTREME CATEGORIES.
A FEW SHORTWAVES ROUNDING THE RIDGE COULD BRING US OFF AND ON
CHANCES FOR STORMS TO DRIFT IN FROM THE WEST, DOTTING THE FORECAST
WITH 20-30% POPS PRIMARILY IN THE MORNING AND EVENING HOURS.
UNFORTUNATELY, OUTSIDE OF THESE HIT OR MISS STORMS, SUBSTANTIAL
WIDESPREAD PRECIPITATION LOOKS UNLIKELY OVER THE NEXT SEVERAL DAYS.
ON THE POSITIVE SIDE, ANY CLOUD COVER FROM THESE SHOWERS AND STORMS
WOULD LIKELY MODERATE TEMPERATURES A FEW DEGREES. HOWEVER, THE
CUMULATIVE EFFECTS OF HEAT INDICES NEAR 100-105 FOR MULTIPLE DAYS IN
A ROW, COMBINED WITH TEMPERATURES ONLY FALLING INTO THE MID 70S
OVERNIGHT NECESSITATE AN EXTENSION TO THE HEAT ADVISORY THROUGH AT
LEAST SATURDAY. SUNDAY AND MONDAY LOOK A FEW DEGREES COOLER FOR THE
MOMENT, HOWEVER TUESDAY HEAT INDICES POP RIGHT BACK INTO THE LOW
100S. GIVEN THE HOLIDAY WEEKEND WITH SEVERAL OUTDOOR ACTIVITIES,
FURTHER EXTENSION MAY BE NEEDED WHERE THE HOTTEST TEMPERATURES
PERSIST.
LONGER RANGE MODELS CONTINUE TO HINT AT SOME POTENTIAL RELIEF FROM
THE HEAT BY THE MIDDLE OF NEXT WEEK, AS A COLD FRONT DRIFTS THROUGH
THE REGION TUESDAY. UNFORTUNATELY, THAT MEANS HIGHS ONLY IN THE MID
TO UPPER 80S, AS OPPOSED TO THE MID TO UPPER 90S. BUT, AT THIS
POINT, WE'LL TAKE WHATEVER RELIEF WE CAN GET.
AVIATION /00Z TAFS THROUGH 00Z SATURDAY/
ISSUED AT 622 PM CDT THU SEP 3 2026
VFR CONDITIONS CONTINUE ACROSS THE TERMINALS FOR THE NEXT 24
HOURS, WITH WINDS BEING A BIT STRONGER THAN ANTICIPATED THIS
AFTERNOON/EARLY EVENING, GUSTING TO 20-25 KTS AT KLNK/KOMA.
WINDS AT THE SURFACE OVERNIGHT WILL SLOW DOWN TO AROUND 10 KTS,
WITH MUCH STRONGER SPEEDS AT FL015 OF 38-42 KTS, CAUSING LOW-
LEVEL WIND SHEAR TO BE A CONCERN AS EARLY AS 04Z TO 12Z. AFTER
SUNRISE, WE'LL SEE A FEW GUSTS NEAR 20 KTS DURING THE MID-
MORNING HOURS BEFORE SPEEDS COOL OFF FOR GOOD THROUGH THE REST
OF WHAT IS ANTICIPATED TO BE A DRY DAY.
OAX WATCHES/WARNINGS/ADVISORIES
NE...HEAT ADVISORY UNTIL 7 PM CDT SATURDAY FOR NEZ044-045-050>053-
065>068-078-088>093.
IA...HEAT ADVISORY UNTIL 7 PM CDT SATURDAY FOR IAZ055-056-069-079-
080-090-091.
DISCUSSION...KG
AVIATION...PETERSEN
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