Severe Thunderstorm Warning 404, NWS North Platte, NE

657 
WWUS53 KLBF 272330
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
530 PM MDT Thu Aug 27 2026

NEC075-091-280015-
/O.CON.KLBF.SV.W.0404.000000T0000Z-260828T0015Z/
Grant NE-Hooker NE-
530 PM MDT Thu Aug 27 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MDT
FOR GRANT AND HOOKER COUNTIES...

At 529 PM MDT, severe thunderstorms were located along a line
extending from 8 miles northwest of Mullen to near Whitman to 9 miles
north of Hyannis, moving south at 45 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated. This storm has a history of producing wind 
         gusts in excess of 60 mph across southern Cherry County. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
Mullen, Hyannis, Whitman, Carr Lake, Duluth, Cogill Lake, East Cody
Lake, Green Lake, Highway 97 crossing the Dismal River, Pratt Lake,
Spring Valley Lake, Hecla, Kelso, Weir, and Shimmons Lake.

This includes the following highways...
 Highway 2 between mile markers 142 and 194.
 Highway 61 between mile markers 138 and 165.
 Highway 97 between mile markers 45 and 70.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4209 10184 4209 10085 4174 10084 4174 10184
TIME...MOT...LOC 2329Z 343DEG 37KT 4215 10113 4208 10144 4214 10176 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Brown

250 
WWUS53 KLBF 280003
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
603 PM MDT Thu Aug 27 2026

NEC075-091-280015-
/O.CON.KLBF.SV.W.0404.000000T0000Z-260828T0015Z/
Grant NE-Hooker NE-
603 PM MDT Thu Aug 27 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MDT
FOR EASTERN GRANT AND HOOKER COUNTIES...

At 603 PM MDT, severe thunderstorms were located along a line
extending from 11 miles south of Mullen to 9 miles northeast of Swan
Lake to 10 miles southeast of Hyannis, moving south at 35 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Mullen, Whitman, Carr Lake, Duluth, Cogill Lake, East Cody Lake,
Green Lake, Highway 97 crossing the Dismal River, Pratt Lake, Spring
Valley Lake, Hecla, Kelso, Weir, and Shimmons Lake.

This includes the following highways...
 Highway 2 between mile markers 149 and 194.
 Highway 97 between mile markers 45 and 70.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4209 10173 4209 10085 4174 10084 4175 10164
TIME...MOT...LOC 0003Z 342DEG 30KT 4188 10101 4181 10132 4187 10164 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Brown

Area Forecast Discussion
National Weather Service North Platte NE
612 PM CDT Thu Aug 27 2026

.KEY MESSAGES...

- Severe thunderstorms are expected this afternoon and evening,
  especially across north-central and central Nebraska, with
  large to very large hail and damaging winds the primary
  threats. Significant wind gusts of 75 mph or greater are
  possible.

- Additional thunderstorm chances persist Friday through early
  next week, though the severe threat and coverage will vary
  each day.

- Hot temperatures return this weekend, with Saturday the
  hottest day. Highs in the mid 90s to lower 100s, low humidity,
  and gusty winds may also result in elevated fire weather
  conditions across western Nebraska.

&&

.SHORT TERM /THROUGH SATURDAY NIGHT/...
Issued at 153 PM CDT Thu Aug 27 2026

This afternoon into the evening, the severe weather threat remains
on track across much of the area. Southerly low-level flow is
maintaining increased moisture across the region early this
afternoon. Some mixing of surface dew points may occur through peak
heating, though ample low-level moisture should remain to support
considerable instability. Current satellite imagery shows a mid to
upper-level disturbance moving across Montana into Wyoming, which
will continue southeast along the northern periphery of an upper-
level ridge centered across the southwestern United States.
Increasing large-scale ascent associated with this disturbance,
combined with strengthening low-level convergence, should provide
sufficient forcing for thunderstorm development initially across the
Black Hills and southwest South Dakota this afternoon. Across the
forecast area, the severe weather environment remains quite
favorable for this time of year. SBCAPE values of 3000 to 3500 J/kg
are forecast across portions of north-central Nebraska. ECAPE values
are also quite favorable, suggesting that the combination of
instability and the wind profile will support strong, sustained
updrafts capable of efficiently utilizing the available buoyancy.
Deep-layer shear will also be favorable for organized convection,
with 0-6 km bulk shear around 40 to 45 knots. Forecast hodographs
show some low-level curvature, particularly as the low-level jet
strengthens this evening, while the mid and upper portions of the
hodograph remain relatively long and largely characterized by speed
shear. Current thinking is that thunderstorms developing across
southwest South Dakota will initially favor discrete supercells
before moving southeast into north-central Nebraska within the
northwest flow regime. These initial supercells will be capable of
producing large to very large hail given the combination of strong
instability, favorable ECAPE, and sufficient deep-layer shear.
Previous analogs and similar synoptic patterns also lend support to
the potential for significant hail. With time, storm interactions
should favor upscale growth into one or more line segments as
convection moves southeast into western and central Nebraska. This
transition would favor an increasing damaging wind threat.
Significant wind gusts of 75 mph or greater will be possible given
DCAPE values exceeding 1000 J/kg, steep low-level lapse rates, and
favorable 0-3 km delta theta-e values supporting strong downdraft
potential. The tornado threat remains low, but is not zero.
Strengthening of the low-level jet this evening should result in
increasing low-level SRH and greater hodograph curvature. Any
supercell that can remain discrete could briefly take advantage of
this environment. However, forecast 4-6 km storm-relative winds
remain relatively parallel to the initiating boundary, which should
encourage storm interactions and upscale growth, limiting the
overall tornado potential. The SPC has expanded the Slight Risk
across portions of the area and has reintroduced a hatched
significant wind area in addition to the existing significant hail
area, which aligns well with the expected evolution. Current
guidance moves the primary convective activity east of the forecast
area by around midnight CDT, with predominantly dry conditions
expected into early Friday morning.

Friday, the upper-level ridge across the southwestern United States
will amplify and gradually shift eastward through the day. Another
weak disturbance is forecast to move along the northeastern
periphery of the ridge Friday afternoon into the evening. Ample
instability will remain across the area, though the strongest deep-
layer shear is forecast to remain farther north across the Dakotas.
This should favor more scattered convection across the forecast
area, with thunderstorm development also dependent on whether the
cap can be overcome during the afternoon. Another opportunity for
convection may develop Friday evening into the overnight as
thunderstorms originating across South Dakota move south into north-
central Nebraska. The SPC currently highlights this area in a
Marginal Risk. At this time, damaging winds and locally heavy
rainfall appear to be the primary threats, though forecast trends
will continue to be monitored. Southerly winds will also strengthen
through the day, resulting in gusty conditions across much of the
area. Highs Friday will warm into the upper 80s to lower 90s, with
overnight lows remaining in the lower to middle 60s.

Saturday, the upper-level ridge will continue shifting eastward into
the south-central United States. This will establish southwesterly
flow in the 850-700 mb layer, resulting in stronger warm air
advection across the region. Forecast 850-mb temperatures rise into
the 30 to 35C range, which is well above normal for this time of
year. Strong daytime mixing should allow much of this warmth to
reach the surface, making Saturday the hottest day of the forecast
period. Highs are expected to reach the middle 90s to lower 100s.
Given the recent dry conditions across southwest Nebraska,
temperatures may ultimately trend even warmer across this area. The
combination of hot temperatures, minimum relative humidity values
falling below 25 percent, and gusty southwest winds approaching 25
mph may result in elevated fire weather conditions Saturday
afternoon, particularly west of Highway 61. Another weak disturbance
may move through the region Saturday evening into the overnight
hours, providing another opportunity for showers and thunderstorms,
especially across north-central Nebraska where stronger upper-level
flow will reside. At this time, the organized severe weather threat
appears relatively low, though this will continue to be monitored
over the next several forecast cycles.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
Issued at 153 PM CDT Thu Aug 27 2026

Sunday, a strong 597-dam 500-mb upper-level ridge will remain
centered across the south-central United States, while a trough
remains across the western United States. This will maintain broad
west to southwest flow aloft across the region. Warm conditions will
persist as 850-mb temperatures remain in the 25 to 30C range,
supporting afternoon highs generally in the lower to middle 90s.
Despite somewhat stronger flow aloft, precipitation chances should
remain relatively low Sunday as warm mid-level temperatures and
associated capping limit convective development. Overnight
temperatures will remain quite mild, with lows generally in the
upper 60s to lower 70s.

Monday, the upper-level ridge is forecast to flatten and shift
farther into the southeastern United States as a weak shortwave
ejects northeastward from the western longwave trough. An associated
frontal boundary is expected to move southeast across the region
during the day, bringing cooler temperatures with highs ranging from
the middle 80s north to upper 80s south. Increasing large-scale
forcing and low-level convergence along the boundary should also
result in increasing shower and thunderstorm chances Monday
afternoon into the evening. Severe weather may be possible given the
potential overlap of sufficient instability and stronger deep-layer
shear. However, confidence in the magnitude and location of the
threat remains low at this range.

Tuesday into late next week, the western United States trough will
attempt to progress eastward while the upper-level ridge across the
southeastern United States begins to reamplify and expand westward.
This evolution should maintain relatively warm conditions, with
highs returning to around 90 degrees or the lower 90s by the middle
and latter portions of next week. Periodic precipitation chances
will remain possible, though the timing and coverage will depend
heavily on the strength and track of individual disturbances moving
through the flow. Overall, the long-term pattern favors the better
opportunities for showers and thunderstorms through the weekend into
early next week, followed by a trend toward warmer and drier
conditions by Wednesday into the latter part of next week.

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 611 PM CDT Thu Aug 27 2026

Severe thunderstorms are currently occurring across north-
central Nebraska and are expected to move south into western and
central Nebraska later this evening, potentially impacting the
KLBF terminal between 02Z and 05Z. Brief MVFR visibility
reductions, along with gusty and erratic winds, will be possible
with any thunderstorms. The primary round of convection should
exit the area later tonight, though additional thunderstorm
development will be possible across north-central Nebraska early
Friday morning. Beyond this activity, VFR conditions are
expected to prevail across the area through Friday evening.
Southerly winds will become quite gusty Friday, with sustained
speeds of 20 to 25 knots and gusts up to 35 knots possible.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...
None.

&&

SHORT TERM...Labenz
LONG TERM...Labenz
AVIATION...Labenz

Hazardous Weather Outlook
National Weather Service North Platte NE
258 PM CDT Thu Aug 27 2026

NEZ004>010-022>029-035>038-056>059-069>071-094-282000-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-
Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
258 PM CDT Thu Aug 27 2026 /158 PM MDT Thu Aug 27 2026/

This Hazardous Weather Outlook is for portions of western and north
central Nebraska.

.DAY ONE...This afternoon and tonight.

Scattered thunderstorms are likely late this afternoon and evening.
Some may be severe, with large hail to very large hail and damaging
wind gusts to 75 mph or greater. Locally heavy rainfall is also
possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Additional isolated chances for thunderstorms will be possible
Friday and into the weekend. At this time, the severe threat is
uncertain.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

Preliminary Local Storm Report
National Weather Service North Platte NE
501 PM CDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0459 PM     Hail             4 S Kilgore             42.88N 100.97W
08/27/2026  M1.75 Inch       Cherry             NE   Public

            Time estimated from radar as well as
            estimated 50 - 55 mph winds.

&&

MRS

Preliminary Local Storm Report
National Weather Service North Platte NE
504 PM CDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0451 PM     Tstm Wnd Gst     19 W Merritt Reservoir  42.64N 101.25W
08/27/2026  M61 MPH          Cherry             NE   Mesonet

&&

MRS

Preliminary Local Storm Report
National Weather Service North Platte NE
510 PM CDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0504 PM     Hail             3 SSE Kilgore           42.90N 100.93W
08/27/2026  M1.00 Inch       Cherry             NE   Public

&&

MRS

Preliminary Local Storm Report
National Weather Service North Platte NE
524 PM CDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0519 PM     Hail             8 S Merriman            42.81N 101.71W
08/27/2026  E1.00 Inch       Cherry             NE   Public

&&

MRS

Preliminary Local Storm Report
National Weather Service North Platte NE
544 PM CDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0523 PM     Hail             21 WSW Merritt Reservoi 42.56N 101.27W
08/27/2026  E2.50 Inch       Cherry             NE   Public

            Time estimated from radar.

&&

MRS

Preliminary Local Storm Report
National Weather Service North Platte NE
554 PM CDT Thu Aug 27 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0551 PM     Hail             1 NNE Valentine         42.88N 100.54W
08/27/2026  M1.00 Inch       Cherry             NE   CO-OP Observer

&&