Forecast Discussion
NWS Omaha/Valley, NE

038
FXUS63 KOAX 191721
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
1221 PM CDT Tue May 19 2026

.KEY MESSAGES...

- Cooler weather continues with the potential for morning frost
  for northeast Nebraska on Wednesday.

- Shower/thunderstorm chances return Wednesday night into
  Thursday continuing on/off through Friday.

- Trend back toward warmer temperatures over the weekend.

&&

.DISCUSSION...
Issued at 1215 PM CDT Tue May 19 2026

Today and Tonight...

Northerly winds behind yesterday`s cold front yielded cooler
temperatures and gradually clearing skies as high pressure shifted
into the Central Plains. Overnight, temperatures dipped into the mid
40s as winds gusted out of the north at 20 to 30 mph. By noon,
temperatures had reached the mid 50s. Skies will clear through
the evening in northeast Nebraska, before scattered cloud cover
begins to build back in early Wednesday morning. Under the high
pressure and mostly clear skies, temperatures will drop well
below normal overnight. Lows are expected to bottom out in the
low 40s in far southeast Nebraska/southwest Iowa, and the low to
mid 30s across northeast Nebraska. Light winds combined with
the cool temps could lead to areas of frost over northeast
Nebraska, especially in low lying areas. Therefore, a Frost
Advisory has been issued for locations along and north of a line
from Columbus to Fremont, NE, to Soldier, Iowa.

Wednesday through Thursday...

High pressure slides east of the forecast area Wednesday, as a
shortwave ripples out of the Rockies. Temperatures will rise back
into the upper 50s and low 60s Wednesday and Thursday. Lows will
remain slightly warmer than Wednesday morning, under southerly
return flow, only dipping into the low and mid 40s.

A few showers will sneak across the forecast area with the advancing
shortwave Wednesday night through Thursday. While a few rumbles of
thunder may be possible, forecast soundings indicate little to no
instability available with cooler temperatures, likely precluding
the chance for strong or severe storms.

Thursday Night and Beyond...

An upper low will drop south out of Canada into the Central Plains
Thursday night and Friday, bringing increasing chances for showers
and storms through the end of the week. While current model
solutions keep the more potent instability to our south over Kansas
and Oklahoma, variations remain in the timing and track of this
system. As such, it will be worth keeping an eye on for severe
potential, as solutions come into better agreement.

Although we may have to contend with ongoing convection and cloudy
skies, southerly low level flow will draw slightly warmer
temperatures into the region Friday, allowing highs to reach the mid
60s.

A cold front looks to pass through the region late Friday/early
Saturday, but is quickly followed by a ridge building into the
desert southwest. This will push warmer air back into the plains for
the upcoming weekend. The current forecast calls for highs into the
low 70s on Saturday and upper 70s to low 80s Sunday.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1215 PM CDT Tue May 19 2026

MVFR cloud cover will continue to slowly retreat to the east,
with KOMA scattering to VFR by 20Z this afternoon. Winds will
remain breezy out of the northwest today, with gusts up to 20 to
25 kts. Wind speeds dip below 12 kts this evening, becoming
light and variable overnight.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...Frost Advisory from 1 AM to 8 AM CDT Wednesday for NEZ011-012-
     015>018-030>034-042>044.
IA...Frost Advisory from 1 AM to 8 AM CDT Wednesday for IAZ043.

&&

$$

DISCUSSION...KG
AVIATION...KG

NWS OAX Office Area Forecast Discussion

Forecast Discussion
NWS Hastings, NE

568
FXUS63 KGID 191752
AFDGID

Area Forecast Discussion
National Weather Service Hastings NE
1252 PM CDT Tue May 19 2026

.KEY MESSAGES...

- Frost Advisory tonight into Wednesday morning for areas
  near/north of Highway 92.

- Light rain is expected in western areas during the day
  Wednesday. A few showers and thunderstorms (non-severe) move
  in from the west Wednesday night.

- Additional showers/t-storms Thursday evening through Friday.
  The threat for severe weather remains low.

- A drying and warming trend is expected this weekend into early
  next week.

&&

.DISCUSSION...
Issued at 1252 PM CDT Tue May 19 2026

Temperatures remain relatively cool today behind the system that
resulted in multiple rounds of severe weather over the last 3-4
days. Tonight, temperatures are anticipated to drop into the
30s and 40s, aided by light winds and mostly clear skies under
surface high pressure. Clouds are then anticipated to increase
early Wednesday morning, which should keep temperatures from
dropping much below 35 degrees. Nevertheless, this may result in
some frost formation, potentially damaging sensitive plants in
areas near/north of Highway 92. The Frost Advisory area is
"generous," mainly because we are so far into the growing season
already. Many areas, especially in southern parts of Howard,
Sherman, and Nance counties, likely will not see any frost
impact.

Wednesday will remain cool, and rain is expected to slide in
from the west as an upper trough pushes into the central Plains.
Many areas will remain dry, but western zones could pick up
0.05-0.15". Later Wednesday night into Thursday morning,
isolated to scattered showers/t-storms become possible, but
instability is very limited and no severe weather is expected.

Late Thursday night into Friday, another shortwave is expected
to cross the northern Plains, bringing more widespread chances
for rain and thunderstorms to the region. The severe threat
remains minimal, but this COULD bring some relief to drought-
stricken areas of western Nebraska.

Low rain chances linger on Saturday, but overall things will
trend drier and warmer for the Memorial Day weekend as upper
level ridging returns to the north/central Plains. After almost
a week of near to below- normal temperatures, 80s are expected
to return for Sunday-Tuesday.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1117 AM CDT Tue May 19 2026

For KGRI/KEAR Airports:

VFR conditions are favored through the period. FEW-SCT afternoon
cumulus will clear this evening, and additional cloud cover
arriving from the west early Wednesday morning. Cloud bases may
dip to around 4kft by middy Wednesday, but should remain VFR. Some
light rain could move in late in the TAF period, but this is
more favored to the west of GRI/EAR.

North winds today become light/variable tonight before turning
to the southeast and east on Wednesday.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...Frost Advisory from 1 AM to 8 AM CDT Wednesday for NEZ039>041-
     046-047.
KS...None.

&&

$$

DISCUSSION...Mangels
AVIATION...Mangels

NWS GID Office Area Forecast Discussion