718
FXUS63 KOAX 151727
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1227 PM CDT WED JUL 15 2026
KEY MESSAGES
- PATCHY FOG DEVELOPS AGAIN OVERNIGHT. TEMPERATURES RISE INTO
THE UPPER 80S AND LOW 90S WEDNESDAY AFTERNOON.
- STRETCH OF HOT WEATHER CONTINUES INTO THE WEEKEND. HEAT
INDICES WILL BE AROUND 100 TO 105F AT TIMES FROM FRIDAY INTO
SUNDAY.
- DRY CONDITIONS EXPECTED THROUGH AT LEAST LATE SUNDAY.
DISCUSSION
ISSUED AT 1105 PM CDT TUE JUL 14 2026
TONIGHT AND WEDNESDAY...
HIGH PRESSURE CONTINUES TO PREVAIL OVER THE REGION, KEEPING US WARM
AND DRY. TEMPERATURES GENERALLY REACHED THE UPPER 80S AND LOW 90S
TUESDAY AFTERNOON. LOWS TONIGHT WILL FALL INTO THE MID AND UPPER
60S. PATCHY FOG WILL ONCE AGAIN BE POSSIBLE ACROSS PARTS OF THE
FORECAST AREA, ESPECIALLY IN LOW LYING AREAS, WHERE CROSSOVER
TEMPERATURES ARE REACHED AND WINDS DIMINISH.
ANY FOG THAT DOES DEVELOP SHOULD BURN OFF SHORTLY AFTER SUNRISE
WEDNESDAY. HIGHS WILL BE SIMILAR TO THE LAST FEW DAYS, IN THE UPPER
80S AND LOW 90S.
FRIDAY AND BEYOND...
TEMPERATURES CONTINUE TO RAMP UP AS WE HEAD INTO THE LATTER HALF OF
THE WEEK. HIGHS ARE EXPECTED TO REACH THE MID TO UPPER 90S BY FRIDAY
AND SATURDAY, WITH SEVERAL LOCATIONS POTENTIALLY REACHING 100 ON
SUNDAY. WHILE NOT OVERLY EXTREME, DEWPOINTS HAVE CONTINUED TO TREND
SLIGHTLY HIGHER THAN GUIDANCE RECENTLY. IF THIS CONTINUES THROUGH
THE WEEKEND, HEAT INDICES MAY REACH 100-105. MEANWHILE, OVERNIGHT
LOWS ARE FORECAST TO REMAIN IN THE LOWER 70S, PROVIDING LITTLE
RELIEF FROM THE DAYTIME HEAT. WHILE CERTAINLY NOT A SLAM DUNK, HEAT
HEADLINES MAY NEED TO BE CONSIDERED FOR FRIDAY THROUGH SUNDAY.
A LOW PRESSURE SYSTEM MOVING OUT OF CANADA TOWARD THE GREAT LAKES
WILL WORK TO FLATTEN THE UPPER RIDGE LATE THIS WEEKEND. WHILE BETTER
PRECIPITATION CHANCES WILL UNFORTUNATELY SKIRT THE FORECAST AREA,
THIS SYSTEM WILL DRAG A COLD FRONT THROUGH THE CENTRAL PLAINS,
BRINGING US SOME RELIEF FROM THE HEAT.
BEHIND THE FRONT, NORTHWESTERLY UPPER LEVEL FLOW APPEARS TO RETURN.
IF THIS REMAINS THE CASE, WE COULD SEE A FEW SHORT WAVES ROUNDING
THE RIDGE AND BRINGING PRECIPITATION CHANCES BACK TO THE REGION.
AVIATION /18Z TAFS THROUGH 18Z THURSDAY/
ISSUED AT 1227 PM CDT WED JUL 15 2026
THE LATEST SATELLITE IMAGERY SHOWING RAPID INCREASE IN DIURNAL
CUMULUS, WITH BASES ANYWHERE FROM FL035-050, AND COVERAGE FEW TO
SCT. A FEW LOCATIONS MAY SEE COVERAGE BECOME BROKEN, BUT LEFT
OUT OF TAFS FOR NOW. EXPECT CUMULUS TO DISSIPATE 16/01-02 UTC.
INCREASING LOW-LEVEL ATMOSPHERIC MOISTURE EXPECTED THURSDAY AS
SOUTHERLY FLOW INCREASES. DIURNAL CUMULUS DEVELOPMENT LIKELY
WILL BE MORE PRONOUNCED ON THURSDAY.
SIMILAR TO THIS MORNING, LIKELY WILL SEE PATCHY GROUND FOG
DEVELOPMENT NEAR KOMA THAT COULD DROP VISIBILITIES TO BELOW 1/4
MILE, BUT THOSE VISIBILITY MIGHT NOT BE REALIZED IN OBSERVATION.
ADDITIONALLY, NBM PLUMES SHOWING VISIBILITIES BELOW 10 MILES AT
KOFK, THOUGH PROBABILTIES LESS THAN 20% FOR MVFR VISIBILITIES.
HOWEVER, DEWPOINTS HAVE BEEN RUNNING TOO LOW, WHICH AFFECT THE
RELATIVE HUMIDITIES, SO THINK THERE'S A GREATER POTENTIAL FOR
FOG THAN THE MODELS ARE SHOWING.
OAX WATCHES/WARNINGS/ADVISORIES
NE...NONE.
IA...NONE.
DISCUSSION...KG
AVIATION...FORTIN
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