Forecast Discussion
NWS Omaha/Valley, NE

223
FXUS63 KOAX 210355
AFDOAX

Area Forecast Discussion
National Weather Service Omaha/Valley NE
1055 PM CDT Mon Apr 20 2026

.KEY MESSAGES...

- Another warm day will bring high to very high fire danger back
  again on Tuesday, mainly to northeast Nebraska.

- Shower and storm chances Wednesday night into Thursday
  (50-70%). There is a low (15%) chance of severe storms for
  portions of area Thursday.

- Cooler temperatures going into next weekend with more chances for
  showers (15-25%) Saturday into Sunday.

&&

.DISCUSSION...
Issued at 927 PM CDT Mon Apr 20 2026

Weather is fairly quiet across the Central US this evening due
to a dominant ridging pattern across much of the CONUS.
Satellite shows a few high cirrus clouds over eastern Nebraska
and southwest Iowa. Temperatures warmed up into the upper 70s to
mid 80s today, with temperatures this evening still lingering in
the low-to-mid 70s as of 9 PM.

A shortwave trough moving across Minnesota into the Great Lakes
region has created a low-level jet with increased south-
southwesterly winds across our area this afternoon. Overnight
tonight we`ll see winds only strengthen, just off the surface as
the boundary layer decouples. Models show a 45-55kt LLJ across
our area overnight. Though the strongest winds will remain
aloft, we will still see breezy winds out of the southwest
overnight. A second shortwave will bring a weak cold front in
early Tuesday, pushing the LLJ off to the east, but stalling
across our area. While temperature difference north and south
of this boundary will be negligible (mid 80s for highs), we
will see a difference in moisture. We`ll see drier air similar
to what we saw today in northeast Nebraska while humidity will
be about 20% higher across southeast Nebraska and far southwest
Iowa. Humidity will be critically low across northeast
Nebraska, but winds should be light north of the front keeping
fire weather conditions from becoming extreme.

Another ridge moves across our area on Wednesday, amplifying
moisture advection into the region. With this, we`ll see
increasing clouds helping to dampen afternoon highs a bit, only
reaching into the low 80s across much of southeast NE and
southwest IA, while clearer areas to the north may approach 90.
Our next chance for rain arrives overnight Wednesday night into
Thursday as a low pressure system moves out of the Canadian
Rockies into the Dakotas. With the primary forcing mechanism
mainly to our north, the best chance for showers and storms
with this system will be across northeast Nebraska and northwest
Iowa (30-40%). We will still see lower chances across the rest
of our area (15-25%).

Better chances for storms arrive Thursday afternoon and evening
as the cold front pushes through. Differences in timing of this
cold front will play a significant role in our severe storm
potential through this period. Faster solutions clear our area
by mid-to-late morning, putting the severe storm threat more
over central Iowa. Slower solutions keep us in the warm sector
for longer and develop a line of strong to severe storms
Thursday afternoon, with all severe weather types on the table.
The Storm Prediction Center keeps this period highlighted with a
15% Severe Storm potential, likely changing to a marginal or
slight risk as we transition into day 3 later tonight.

Cooler weather expected going into the weekend as a Canadian air
mass sinks south over the Central Plains behind the cold front.
Highs going into the weekend will drop into the 60s on Friday
and upper 50s to low 60s Saturday and Sunday. A second lobe of
vorticity moving through over the weekend could bring additional
chances for showers Saturday into Sunday, with a few snowflakes
possibly mixing in over northeast Nebraska early Sunday. We
don`t expect to be cold enough as of now for anything to
accumulate.

&&

.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1055 PM CDT Mon Apr 20 2026

VFR conditions through the TAF period. Primary concern will be
low-level wind shear overnight as strong winds aloft increase to
near 50kt out of the southwest. Winds will be turning more
westerly into early Tuesday before weakening around 10-12Z. A
front moves in early Tuesday shifting winds to northerly then
becoming more easterly at KOFK. This front stalls near KOMA
leading to a period of VRB winds before they finally shift back
to south-southeasterly by 21Z. KLNK sees winds stay southerly as
it remains south of the stalling front, turning more
southwesterly overnight then shifting back to due south or
south-southeast in the afternoon.

&&

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

&&

$$

DISCUSSION...McCoy
AVIATION...McCoy

NWS OAX Office Area Forecast Discussion

Forecast Discussion
NWS Hastings, NE

817
FXUS63 KGID 210717
AFDGID

Area Forecast Discussion
National Weather Service Hastings NE
217 AM CDT Tue Apr 21 2026

.KEY MESSAGES...

- Highs in the mid 80s to low 90s today with light winds and
  mostly sunny skies.

- Southerly winds gusting 35-40mph on Wednesday.

- A few thunderstorms are possible across far western portions
  of the area Wednesday evening/night. Scattered thunderstorm
  chances return Thursday afternoon/evening to eastern portions
  of the area.

- Near-Critical to critical fire weather conditions are possible across
  portions of the are Wednesday and Thursday.

- Cooler weather arrives Friday through the weekend, with
  scattered chances for precipitation though the finer details
  are uncertain at this time.&&

.UPDATE...
Issued at 214 AM CDT Tue Apr 21 2026

Temperatures this morning are currently sitting in the 50s and 60s
under partly cloudy skies. Aloft the area under northwesterly flow
with ridging over the Rockies and troughing over the East Coast.
Southerly winds currently gusting 20-30mph will become light by
sunrise as temperatures bottom out in the low 40s to low 50s. A
seasonably warm day is expected as highs climb into the mid 80s to
low 90s. Overall light winds and mostly sunny skies will result in a
pleasant day across the area.

Southerly flow strengthens over the area on Wednesday ahead of
an approaching trough. Highs on Wednesday will climb into the
80s, warmest across western portions of the area closest to the
dryline where dewpoints are the lowest. Windy weather is
expected during the day on Wednesday, with southerly winds
gusting 35-40mph. Given the stronger winds expected, an area of
near-critical fire weather conditions may develop during the
afternoon-evening hours (see Fire Weather section for more
details).

Scattered thunderstorm development is possible along the dryline in
western Nebraska/Kansas late Wednesday afternoon/evening as it moves
east. It remains possible that these storms could survive long
enough to reach far western portions of the area. If storms do reach
the area, they could be strong-marginally severe given
sufficient shear and instability. The cold front/dryline push
through the area Wednesday night. An isolated shower/storm can`t
be ruled out, though overall chances remain low at this time.
The cold front will stall out across far eastern portions of the
area (or just east of the area) on Thursday. Another round of
shower/storms are possible Thursday afternoon/evening along the
front. Given the position of the front, precipitation coverage
looks to be fairly limited overall (along/east of Highway 81).
Otherwise the forecast remains on track. Cooler weather is
expected Friday onwards, with multiple chances for rain, though
the details remain uncertain at this time.

&&

.DISCUSSION...
Issued at 316 PM CDT Mon Apr 20 2026

Currently...

Dry conditions and overall little in the way of cloud cover
reign across the area this afternoon. Looking aloft, upper air
and satellite data show west-northwesterly flow in place, with
broad ridging over much of the CONUS, set up between a trough
axis working its way toward the East Coast and a larger area of
low pressure spinning just off the West Coast. At the surface,
we are sitting between high pressure centered over the
Midwest/Great lakes and a trough axis draped through the High
Plains, keeping our winds southerly. Between the gusty
conditions and low relative humidity values this afternoon, made
no changes to the ongoing area-wide Red Flag Warning, which
runs through 9PM this evening.

Tonight through Tuesday...

Overall, no notable changes made to the shorter term forecast
period...which remains dry. Models are in good agreement showing
the main upper level ridge axis currently off to our west
shifting east onto the Plains during the day Tuesday into
Tuesday night...pushed by the larger scale upper level low
pressure system which will be working its way inland through the
northern half of the West Coast. Not looking at any notable
disturbances passing through the area, with skies remaining
mostly clear-partly cloudy. A disturbance sliding east to the
north of the forecast area tonight into Tuesday morning will
push a weak surface frontal boundary south. Doesn`t look to make
it all the way through the area, stalling out roughly halfway
around midday...bringing more easterly winds to northern
portions of the area, and southerly across the south. As surface
troughing gets more organized over the High Plains through the
afternoon hours, that boundary lifts back north/gets washed out,
with winds area-wide becoming south-southeasterly. Speeds
remain on the lighter side for most...topping out around 15
MPH...the far SE corner of the area may be a bit more breezy,
with better potential for gusts over 20 MPH. Though warm once
again with highs in the 80s, the more southerly flow brings
increasing dewpoints north...diminishing fire weather potential
some. See Fire Weather section below for more.

Mid-week on through next weekend...

On Wednesday, models remain in pretty good agreement showing the
main upper level low pressure system continuing to trek east,
centered roughly over the ID/MT/WY border region by early
evening. Ahead of this system, expecting a tightening pressure
gradient to develop across the forecast area thanks to
strengthening low pressure/troughing over the High
Plains...resulting in stronger southerly winds. Sustained speeds
of 20-30 MPH and gusts near 35-40 MPH will be possible through
the day on Wednesday. High temperatures once again climb into
the 80s...and the continued southerly flow pushes those 40s-50s
dewpoints further north...keeping relative humidity values from
falling off too much. Potential for some spots of near-critical
fire weather conditions are there...mainly in NNW areas. See
Fire Weather section below for more.

During the afternoon hours on Wednesday, models showing the
development of a sharper sfc dryline, which looks to extend
through western portions of NE-KS. Increasing lift out ahead
of the main upper level system looks to swing SW-NE onto the Nrn
Plains and portions of the Central Plains...sparking off
thunderstorms along that sfc dryline off to our west. Confidence
in the coverage of these storms isn`t the highest at this
point. Our late day-evening precipitation chances remain on the
low side around 20 percent...some uncertainty with how far south
things develop, getting further away from the better forcing
aloft, and models show warmer mid-level temperatures as well.
Some models keep our forecast area completely dry, others clip
our far W-NW areas. IF storms can form closer to or move into
our west, not out of the question some could be strong-
marginally severe. Have some finer forecast details to iron out.

Wednesday night on into the day on Thursday, forecast
precipitation chances are tied to the main upper low/trough
axis itself...and while those chances aren`t high, they are
potentially too broad. Have 20-30 percent chances continuing Wed
night-early Thu AM across much of the forecast area...could see
those getting trimmed quite a bit if recent model trends hold.
For the afternoon-evening hours Thursday, thunderstorm chances
will be closely tied to the accompanying surface cold
front...which most models currently show either right on our
eastern edge or just outside our forecast area before things
fire. Again...finer details to be ironed out. Thursday brings
better potential for increased fire weather concerns...as that
surface boundary ushers in drier dewpoints...and winds look to
remain on the gusty side.

For the end of the week and this weekend...periodic
precipitation chances remain in the forecast. Models showing
upper level low pressure moving into central Canada for at least
Fri-Sat, with the potential for shortwave disturbances to pass
through the region. Confidence in the specifics isn`t overly
high...so chances remain in the 20-40 percent range. Sunday`s
precipitation chances are tied more to another disturbance
moving inland through srn CA...and models are currently more
optimistic with precip potential with this round. We`ll see how
things trend...it`s only Monday. As far as temperatures
go...following 70s-near 80 on Thursday, highs fall into the
60s-near 70 for Friday, then more 50s for the upcoming weekend.

&&

.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1214 AM CDT Tue Apr 21 2026

For KGRI/KEAR Airports:

VFR conditions are expected through TAF period. LLWS at 1000ft
will persist through the early morning hours, before the Low
Level Jet veers and surface and upper level winds decrease.
After sunrise on Tuesday, winds become light and variable as
winds shift from the southwest to the north and eventually
become southeasterly by the afternoon. Southeast winds shift to
the south late in the TAF period, with sustained winds
increasing above 10kts. Another round of LLWS is possible just
past the TAF period.

&&

.FIRE WEATHER...
Issued at 214 AM CDT Tue Apr 21 2026

Highs in the 80s to low 90s are expected today. Dewpoint values
today will range from the upper 30s along/northwest of a Lexington-
Ord line, to the low 50s along/southeast of a line from Phillipsburg-
York. This results in afternoon relative humidity values ranging
from 10-15% in the northwest, around 20% across central portions of
the area (Tri-Cities) to around 30% across southeastern portions of
the area (Hebron-Beloit). Most areas are expected to experience
light winds, with gusts at or below 15mph. The exception will be
across Osborne/Mitchell/Jewell counties where gusts of 20-25mph are
possible. Given that the strongest winds are expected to overlap
with the highest humidity, fire weather concerns are low today
though a window of elevated fire weather is possible across
Osborne/Jewell/Mitchel counties.

Southerly winds gusting 35-40mph are expected across the area on
Wednesday, strongest along/west of Highway 281. Dewpoints on
Wednesday will be higher, in the 40s and 50s, with the lowest
dewpoints northwest of the Tri-Cities. Highs will climb into the
80s, warmest across northwestern portions of the area where
dewpoints are the lowest. An area of near-critical fire weather
conditions may develop northwest of the Tri-Cities where the
greatest mixing/lowest humidity occurs. Along/southeast of the Tri-
Cities higher dewpoints look to keep RH values higher, and above
near-critical/elevated fire weather criteria despite the gusty
winds.

A cold front/dryline move through the area Wednesday night,
resulting in a drier airmass over the area on Thursday. Highs
in the 70s results in afternoon RH values below 20% across the
area. Widespread near-critical fire weather conditions are
expected given westerly winds gusting 20-25mph. An area of
critical fire weather conditions may develop where gusts over
25mph are possible, most likely for areas northwest of the Tri-
Cities.

&&

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

&&

$$

UPDATE...Davis
DISCUSSION...ADP
AVIATION...Davis
FIRE WEATHER...Davis

NWS GID Office Area Forecast Discussion