Alert archive / Nebraska / Severe Thunderstorm Watches in 2024

Severe Thunderstorm Watch 310

May 25, 20246 counties in Kansas; 34 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at May 25, 2024, 6:27 PM CDT for 6 counties in Kansas; 34 counties in Nebraska. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 25, 2024, 6:27 PM CDT (23:27 UTC)
Expired
May 26, 2024, 1:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 40 counties

Cheyenne County, KS, Decatur County, KS, Graham County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Adams County, NE, Buffalo County, NE, Chase County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Fillmore County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Howard County, NE, Kearney County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Red Willow County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The North Platte radar (KLNX), 138 km from the middle of the area, began a volume at 23:31 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 25, 6:44 PM CDTSevere Thunderstorm WarningGIDPhillips, Rooks28 min
May 25, 7:09 PM CDTSevere Thunderstorm WarningGIDOsborne, Phillips, Rooks, Smith36 min
May 25, 7:38 PM CDTSevere Thunderstorm WarningGIDOsborne, Phillips, Rooks, Smith37 min
May 25, 7:53 PM CDTSevere Thunderstorm WarningGLDHitchcock, Red Willow27 min
May 25, 10:47 PM CDTSevere Thunderstorm WarningGIDFranklin, Harlan, Webster43 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.5 hours before the alert went out and 48 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2024-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2024-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 305 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2428 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
305 m²/s²
0-3 km storm-relative helicity
361 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

175 
WWUS20 KWNS 252324
SEL0  
SPC WW 252324
COZ000-KSZ000-NEZ000-260600-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 310
NWS Storm Prediction Center Norman OK
625 PM CDT Sat May 25 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Northeast Colorado
  Northwest Kansas
  Southwest and Central Nebraska

* Effective this Saturday night and Sunday morning from 625 PM
  until 100 AM CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible

SUMMARY...Scattered thunderstorms are forecast to develop this
evening and potentially be capable of severe gusts and large hail. 
A couple of severe clusters may evolve with time as this activity
moves east across southern Nebraska through the evening and into the
early overnight hours.

The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 40 miles west southwest
of Imperial NE to 40 miles east of Grand Island NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 306...WW 307...WW
308...WW 309...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24030.

...Smith

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 25, 2:56 PM CDTMesoscale DiscussionSPCBarber, Comanche, Cowley, Harper, Kingman, Pratt and 2 more4 hr
May 25, 3:26 PM CDTTornado Watch PDSSPCBarber, Butler, Chautauqua, Clark, Comanche, Cowley and 13 more11 hr
May 25, 4:41 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Logan, Norton and 7 more2 hr
May 25, 5:23 PM CDTTornado WatchSPCBarton, Chase, Clay, Cloud, Dickinson, Ellis and 23 more8 hr
May 25, 6:07 PM CDTMesoscale DiscussionSPCBarber, Comanche, Edwards, Harper, Kingman, Kiowa and 4 more83 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2024Severe Thunderstorm Watches in Kansas, 2024Every severe thunderstorm watch in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.