Plattsmouth, Nebraska 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

072
FXUS63 KOAX 261017
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
517 AM CDT Tue May 26 2026

.KEY MESSAGES...

- Isolated strong storms continue overnight in northeast
  Nebraska. Most will remain below severe criteria.

- Above-average temperatures continue through Thursday, with
  highs in the mid 80s to lower 90s.

- Precipitation chances for the second half of the work week and
  the weekend have been falling.

&&

.DISCUSSION...
Issued at 1130 PM CDT Mon May 25 2026

The upper pattern, as revealed by guidance and water vapor
imagery, reveals a cut-off low driving down the West Coast as a
contracted ridge back-builds over the High Plains. The KOAX
radar waves are reflected back to Valley, NE by some
strong/severe thunderstorms in far northeast Nebraska. These
storms are expected to push out of the area by sunrise as the
storms continue northeast.

.TUESDAY AND WEDNESDAY....

High temps remain about ten degrees above normal for both
Tuesday and Wednesday as mid-level ridging continues to expand
northwest into the Canadian Prairies. Each day`s skies should be
averaging less than four oktas of cloud cover. (It`ll be partly
sunny.) Precip chances for both days have slipped over the
course of the weekend from "scattered" to below 10%.

.THURSDAY AND INTO THE WEEKEND...

Precip chances were expected to be highest on Thursday, but are
falling consistently from model run to model run. With the cut-
off low beginning to kick- out from the West Coast and a
boundary developing just south of there, likely PoPs are
expected in central Nebraska and eastern Kansas, but only
isolated (10-15%) PoPs are expected in OAX`s southern tier of
counties. Unfortunately, that drier trend holds true for Friday
and the weekend proper, too. Earlier forecasts calling for
50-70% PoPs are long gone. Over the past 24 hours, NBM PoPs at
Omaha for Thursday have slipped from 50% to less than 10%. Now
PoPs hit their zenith on Friday afternoon at 15-25% for areas
southwest of Omaha.

Best chance of precip remain west and south of the area over the
course of Saturday and Sunday, too. The cut-off low out west
will weaken and eject northeast.

With the flooding threat now negligible, we turn our attention
to a severe weather threat. The SPC does not currently have the
area highlighted with any convective concerns over the course of
the next 8 days while machine-learning forecasts from NCAR and
CSU corroborate.

High temps will be slipping over this period from mid-80s on
Thursday to lower-80s for Saturday and Sunday.

Longer range forecasts suggest the beginning of June 2026 will
be warmer than normal as ridging builds back across the central
CONUS. The latest CPC outlook suggests the Omaha metro has a 54%
chance that June 2-8 will end up warmer than normal.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 517 AM CDT Tue May 26 2026

VFR conditions will prevail for the duration of the TAF cycle
with only high based cloudiness. Southerly winds become gusty
at KOFK this afternoon with winds of 12 kts or less at KOMA and
KLNK. Winds turn southeasterly after 06z and become less than 5
kts at all terminals.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...None.
IA...None.

&&

$$

DISCUSSION...Nicolaisen
AVIATION...Castillo