Forecast Discussion
NWS Omaha/Valley, NE

346
FXUS63 KOAX 032359
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
659 PM CDT Wed Jun 3 2026

.KEY MESSAGES...

- Highs reach the 80s today with a small chance (15-20%) for
  some showers and storms this afternoon.

- 50-70% chance for some showers and storms overnight, with the
  highest chances across northeast Nebraska. Storms may be
  strong to severe with gusty winds and small hail.

- Active pattern continues Thursday and Friday with chances for
  showers and storms (50-80% chance for much of the area). A
  few storms may be strong to severe both days.

- Brief lull in storm chances Saturday before resuming Sunday
  (30-60%) and Monday (40-60%). Temperatures remain warm in the
  mid 80s to lower 90s.

&&

.DISCUSSION...
Issued at 142 PM CDT Wed Jun 3 2026

Main features of note early this afternoon were a surface
boundary stretching from north-central SD into the NE panhandle
and a compact mid-level low over the TX panhandle. Both features
will lead to thunderstorm development later this
afternoon/evening to our west, with a line of storms associated
with the boundary being the most likely to bring us any impacts.
While we`ll have plenty of instability in our area ahead of
said line, shear will remain fairly weak so expect outflow to be
racing out ahead of the line by the time they get here (most
favored timing around 9-11 PM) with a general downward trend in
intensity. However, still a shot for some stronger to severe
storms as they first move into northeast NE with various CAMs
indicating potential for pockets of 50-60 mph gusts. However,
before we get there, afternoon temperatures have risen into the
upper 70s to lower 80s and are within a few degrees of
convective temperatures, so we may see some spotty shower and
storm development over the next few hours in our area like we
see to our west and south (15-20% chance).

By mid to late Thursday morning, the shortwave energy
associated with the aforementioned low/trough to our southwest
will slide into the forecast area. In addition, we will likely
have lingering outflow from the overnight line of storms along
with strengthening moisture transport pointing into the area.
With all of that, additional showers and storms look likely
through the day on Thursday (50-80% chance for most of the
area). Once again, deep layer shear will be on the weaker side
(20-30 kts in the 0-6 km layer) so storms will once again be a
little disorganized and with storms expected to start early,
instability may be limited. However, both appear to be
sufficient for perhaps strong or severe storms once again and a
few pieces of guidance hint at some decent low level hodograph
curvature which could yield a sneaky tornado threat, especially
given low LCLs. In addition, guidance shows precipitable water
values in the neighborhood of 1.75" with warm cloud depths
approaching 4 km. As a result, storms will also be efficient
rain- producers and could lead to some localized flooding if an
area receives repeated rounds.

The severe weather threat for Friday appears to be a bit higher
as some stronger mid to upper level flow finally pushes in,
giving us some slightly stronger shear with an unstable airmass
setting up ahead of an incoming cold front. While
destabilization and storm initiation may be delayed owing to
morning convection/lingering clouds, most guidance suggests
we`ll erode that cap through the afternoon and storms will fire
by the evening. With ample instability and shear sufficient for
storm organization, we`ll see a threat of large hail and
damaging winds, with an outside shot at a tornado should storms
remain surface based in vicinity of the front where low level
hodograph curvature is maximized.

Mid to upper level ridging looks to build in for Saturday and
should favor most locations staying dry, though some shortwave
energy approaching from the southwest and temperatures
approaching convective temperatures (highs in the mid 80s to
lower 90s), can`t completely rule out some spotty afternoon
showers and storms once again (10% chance). The ridge quickly
moves off to the east on Sunday as the aforementioned shortwave
moves through the area and brings us a 40-60% chance of showers
and storms by Sunday afternoon.

We`ll stay under southwesterly flow aloft well into next week
with highs in the mid 80s to lower 90s with various bits of
shortwave energy sliding through and giving us almost daily
shower and storm chances. Still lots of details to be worked out
there, but given the warm and humid air mass staying in place,
we`ll likely have several chances for strong to severe storms.
Various severe weather machine learning algorithms give us at
least a 5-10% chance of severe storms each day, though higher
potential appears like it will be to our west where stronger mid
to upper level flow will be in place.

&&

.AVIATION /00Z TAFS THROUGH 00Z FRIDAY/...
Issued at 642 PM CDT Wed Jun 3 2026

VFR conditions are currently in place at the terminals.

KLNK: A line of strong but sub-severe thunderstorms is slowly
making its way northeast across southern Nebraska this evening.
On its present trajectory, these storms are expected to be
impacting the terminal after 1Z while showers also move in from
the west. Winds will become variable as the line moves through.
Kept a mention of showers and storms in the vicinity of the
terminal through around 09Z as there will be potential for
additional storms near KHDE and KPHG to move into the area.

KOFK: A few showers are currently moving northeast into KOLU
and KBVN. These showers will move into the vicinity of the
terminal over the next 1-2 hours. An isolated rumble of thunder
cannot be entirely ruled out. The better chance for storms will
be closer to the 03-05Z timeframe for onset as ongoing
convection between KANW and KONL continues on its easterly trek.
These storms may become strong to marginally severe as they move
in. Shower/storm chances continue overnight, with a break in the
action tomorrow morning.

KOMA: For now, TAFs are VFR with southerly winds around
12-16kts. Showers and storms are currently located over KJYR and
KHJH, expected to lift to the northeast over the course of the
next few hours. At their current speed and trajectory, this
would put storms potentially moving into the vicinity of the
terminal between 03Z and 05Z. There will be a chance of off and
on showers/storms through the overnight hours, with lower
chances 20-30% after sunrise.

&&

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

&&

$$

DISCUSSION...CA
AVIATION...ANW

NWS OAX Office Area Forecast Discussion

Forecast Discussion
NWS Hastings, NE

515
FXUS63 KGID 032334
AFDGID

Area Forecast Discussion
National Weather Service Hastings NE
634 PM CDT Wed Jun 3 2026

.KEY MESSAGES...

- Scattered, mainly non-severe, thunderstorms will move across
  the area this afternoon. Another round of storms is likely
  late this evening and overnight, and may produce some isolated
  damaging winds.

- Scattered off-and-on showers and thunderstorms are expected on
  Thursday with ample cloud cover. Some of the storms will
  produce heavy rain, and one or two severe storms will be
  possible in the afternoon.

- Friday afternoon and evening may be a favorable setup for
  scattered severe thunderstorms with large hail, damaging
  winds, and perhaps a few tornadoes late in the day.

- Saturday will be warm but mainly dry, while Sunday will
  feature another chance for scattered thunderstorms.

&&

.DISCUSSION...
Issued at 1124 AM CDT Wed Jun 3 2026

Many of the details of the next few days` weather will be rooted
in subtleties that develop on a day-to-day basis. There will be
some features that focus thunderstorm development a bit more
readily, and there will be some severe potential and heavy rain
potential in several regimes in the coming days, depending on
your location and the evolution of subtle features that develop.

Current Synopsis and Anticipated Large Scale Evolution:

A decaying convective complex just clipped the far northern
counties in our central NE coverage area this morning as the
outflow dropped south of Ord and a few showers developed to the
north. That outflow boundary is now slowly retreating back north
and is expected to exit the forecast area but linger in north
central NE into the afternoon hours, growing increasingly
diffuse over time. South of the outflow, southerly winds and
mostly sunny skies have allowed temperatures to warm nicely, but
at mid day, we`re beginning to see the influence of a moisture
flow off the Gulf, into the High Plains, and then northeast
into this region. Water Vapor imagery indicates a pretty
unimpressive overall mid level flow pattern, but with a well-
developed short wave trough meandering northward out of far
northeast New Mexico. Ahead of this trough, the moisture profile
is fairly deep with some showers and thunderstorms in the
moisture plume. Surface dewpoints are climbing into the 70s in
central KS so there is a fair amount of instability developing,
and expect scattered showers and thunderstorms to develop
northeastward this afternoon around time of max heating. There
is also a north-south oriented pseudo-dryline in western KS with
some enhanced convergence which is also expected to act as a
focus for afternoon convection today. Finally, another area of
surface low pressure in South Dakota has a cool front extending
southwest from it, and will stall out from the Nebraska
Panhandle into central SD later today, acting as another
convergence region and focusing mechanism for thunderstorm
development this afternoon.


As we progress into tomorrow and Friday, we`ll see a combination
of potential outflow boundaries from convective complex
development to our north, along with ill-defined frontal
boundaries left over from existing systems as the New Mexico
short wave slowly drifts northeast across the area...but these
will become better defined fronts as we progress into Friday and
a short wave trough with an attendant mid-level speed maximum
moves across northern Nebraska. Slight ridging develops for
Saturday before we transition into a more dominant western CONUS
trough and southwesterly flow aloft with embedded short wave
troughs by Sunday into next week.

Daily Hazard Potential:
For today, we`ve already got scattered thunderstorms developing
as the advancing moisture plume and weak mid level cooling from
the trough overspread an unstable boundary layer. At the current
time, it appears there could be one or two storms that become
strong enough to produce isolated severe hail or downbursts, but
the overall severe threat this afternoon is on the low end. Mid
level lapse rates are unimpressive, and deep layer wind shear is
unimpressive as well, so overall storm organization is unlikely.

As the evening progresses, we`ll want to watch the two areas of
more widespread convective development expected along the weak
dryline/front in western KS and along the cold front to our
northwest. Expect more linear development in these areas in the
presence of slightly more favorable vertical wind fields. This
would favor conglomeration of cold pools into one or two
convective complexes. The most recent CAM guidance favors one
system tracking east across the forecast area, particularly
favoring areas near/south of I-80, in the mid to late evening
hours, with another tracking southeast out of SD and perhaps
clipping northern parts of the forecast area late evening to
early morning. There is a good amount of most unstable CAPE
present in advance of these systems, and the 0-2 km shear vector
may actually favor some elements of forward propagation where
the cold pool is deep and strong enough to continue forcing
parcels through the inversion. But again the lapse rates above
that inversion are not especially steep which may limit overall
intensity with eastward progression. All told, see some
potential for pockets of damaging wind this evening into early
morning, depending just how aggressive these storm complexes can
get.

On Thursday, we`ll be closely monitoring the location of any
outflow boundaries and the role they map play in enhancing
convective development, as well as the potential for some
training of storms with heavy rain near boundaries. With the
compact short wave trough moving directly over the local
forecast area, scattered showers and thunderstorms look like a
good bet off and on during the day...so another question will be
if we`re able to develop pockets of stronger instability through
any areas of sunshine during the day. If instability can
develop, the combination of vertical vorticity, favorable low
level wind profiles, and low LCLs suggest we would have to be on
the lookout for a few rotating storms on the eastern flank of
the center of the trough. This is a low-end potential at the
moment, but one to watch. Otherwise, there are some favorable
heavy rain parameters in place, and any areas of training storms
could end up with some isolated flooding potential.

Friday is a day to watch as the mid and upper flow intensifies a
bit from the west while a short wave trough axis crosses the
region late in the day and a surface low pressure trough extends
from southwest to northeast through the area. Mid level lapse
rates will steepen dramatically with the westerly mid-level
flow, and naturally the deep layer shear profile becomes much
more favorable for storm organization as well. Thus anticipate a
broken line of supercell thunderstorms to develop in the
vicinity of the surface trough axis where boundary layer
convergence is maximized. Storm motion would favor an east
southeast trajectory early on, with the low level shear becoming
pretty sharply enhanced as the LLJ intensifies. So this could
end up being a "magic hour" scenario when a few of the more
isolated storms may be able to produce very large hail or
tornadoes before cold pools congeal and push out to the east.
Storm mode will be key, and the previous evening`s convection
could play quite a role in how it all plays out. Friday is
definitely a day to watch though.

Saturday looks warm and mostly dry. Sunday again features a
meandering short wave trough with quite a bit of moisture
present in the region. This would seem to be another favored day
for scattered thunderstorms, although with limited instability
and shear probably wouldn`t be particularly intense. Then severe
potential amps up again by mid to late week with the western
trough taking better shape and sending impulses into the
Central/Northern Plains at times.

&&

.AVIATION /00Z TAFS THROUGH 00Z FRIDAY/...
Issued at 630 PM CDT Wed Jun 3 2026

For KGRI/KEAR Airports:

VFR conditions favored through TAF period though low confidence
MVFR conditions possible in thunderstorms. Based on current
radar trends, the majority of thunderstorms are expected to
stay south of KGRI/KEAR this evening though a rogue one may
impact either site briefly. Overnight, additional storms move in
from the west/northwest though the timing is uncertain. For
now, have a broad/long PROB30 groups for thunderstorms through
11z, though a majority of the time may be light rain or dry. Any
of the storms could feature briefly MVFR conditions, though
given broader uncertainty MVFR conditions were not included in
the TAF. There appears to be a window of higher confidence dry
conditions during the mid-late morning hours before additional
thunderstorms develop Thursday afternoon. Winds will remain
primarily southerly through the TAF period at 8-10kts.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...None.
KS...None.

&&

$$

DISCUSSION...Schuldt
AVIATION...Davis

NWS GID Office Area Forecast Discussion