RSS Mesoscale Discussions from Storm Prediction Center
WW 390 SEVERE TSTM KS NE 250005Z - 250700Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 390
NWS Storm Prediction Center Norman OK
705 PM CDT Wed Jun 24 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest and North-Central Kansas
Southwest and South-Central Nebraska
* Effective this Wednesday night and Thursday morning from 705 PM
until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph possible
Scattered large hail and isolated very large hail events to 3
inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorm coverage is expected to increase this evening
across southwest/south-central Nebraska and northwest/north-central
Kansas. Strong buoyancy and vertical shear will support the
potential for large to very large hail over the next few hours when
a more cellular mode is favored. A low-probability tornado risk
exists during this time period as well. Thereafter, a trend towards
a more linear storm mode is possible, with the primary severe threat
transitioning to strong gusts. Isolated gusts may approach 75 mph.
The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 25 miles west northwest
of Imperial NE to 55 miles south southeast of Kearney 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 387...WW 388...WW 389...
AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29020.
...Mosier
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WW 389 TORNADO CO NE WY 242150Z - 250500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 389
NWS Storm Prediction Center Norman OK
350 PM MDT Wed Jun 24 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northeast Colorado
Nebraska Panhandle
East-Central and Southeast Wyoming
* Effective this Wednesday afternoon and evening from 350 PM
until 1100 PM MDT.
* Primary threats include...
A couple tornadoes possible
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 3.5
inches in diameter likely
SUMMARY...Supercell thunderstorms are expected to develop within the
very unstable and strongly sheared environment in place across the
region this afternoon and evening. Environmental conditions support
the potential for a few tornadoes within any mature supercells, with
very large hail up to 3.5" in diameter possible as well. Over time,
one or more bowing segments could materialize, with an attendant
risk for severe gusts up to 75 mph.
The tornado watch area is approximately along and 60 statute miles
east and west of a line from 15 miles southwest of Limon CO to 35
miles east northeast of Douglas WY. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 387...WW 388...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 29015.
...Mosier
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WW 388 SEVERE TSTM CO NM 242055Z - 250400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 388
NWS Storm Prediction Center Norman OK
255 PM MDT Wed Jun 24 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Colorado
Eastern New Mexico
* Effective this Wednesday afternoon and evening from 255 PM
until 1000 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
SUMMARY...Strong to severe thunderstorms will continue to develop
across eastern New Mexico into southeast Colorado including near the
Raton Mesa and I-25/I-40 corridors. Large hail and some
severe-caliber wind gusts are the primary hazards through
early/mid-evening.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 25 miles northeast of
Colorado Springs CO to 105 miles south southwest of Tucumcari NM.
For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU8).
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 387...
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 550. Mean storm motion vector
24035.
...Guyer
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WW 0390 Status Updates
STATUS FOR WATCH 0390 HAS NOT BEEN ISSUED YET
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WW 0389 Status Updates
STATUS FOR WATCH 0389 HAS NOT BEEN ISSUED YET
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WW 0388 Status Updates
STATUS FOR WATCH 0388 HAS NOT BEEN ISSUED YET
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WW 0387 Status Updates
STATUS REPORT ON WW 387
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNE PIA
TO 30 SE MMO TO 30 N VPZ.
..CHALMERS..06/25/26
ATTN...WFO...ARX...DVN...LOT...GRB...MKX...
STATUS REPORT FOR WS 387
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC091-105-250340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
KANKAKEE LIVINGSTON
INC089-127-250340-
IN
. INDIANA COUNTIES INCLUDED ARE
LAKE PORTER
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
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No Mesoscale Discussions are in effect as of Thu Jun 25 03:06:13 UTC 2026.
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0759 PM CDT Wed Jun 24 2026
Valid 250100Z - 251200Z
...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS
PARTS OF NORTHEASTERN COLORADO INTO NORTHWESTERN KANSAS...
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING
ACROSS PARTS OF THE UPPER MIDWEST AND THE GREAT BASIN...
...SUMMARY...
Scattered severe storms accompanied by large hail may gradually
evolve into an organizing cluster with increasing potential to
produce damaging wind gusts across parts of northeastern Colorado
into parts of southwestern Nebraska and western Kansas tonight.
...01Z Update...
...Front Range into adjacent central Great Plains...
Warm advection based near the 700 mb level, near the northeastern
periphery of a plume of elevated mixed-layer air lingering to the
east of the Front Range, is becoming the focus for increasing
thunderstorm development across and east-southeast of the Cheyenne
Ridge vicinity. This seems likely to continue to grow upscale
during the next few hours, aided by inflow of seasonably moist
boundary-layer air emanating from along and south of a stalled to
slowly southwestward advancing surface front across this region
through the central Nebraska/Kansas state border vicinity.
Beneath 20 kt westerly deep-layer mean flow (but strongly sheared
due to pronounced veering of winds from easterly to westerly with
height), this activity probably will gradually organize as it
propagates east-southeastward this evening, and pose increasing
potential for strong to severe surface gusts. Strongest gusts and
highest severe wind probabilities may eventually focus on the
southwestern flank of the evolving system across parts of east
central Colorado into northwest/west central Kansas, near the nose
of a modest (30+ kt around 850 mb) southeasterly boundary-layer jet.
...Southern Wisconsin/Northern Illinois...
Low-level moistening is maintaining boundary-layer instability in a
pre-frontal corridor across west central through northeastern
Illinois early this evening. As larger-scale mid-level troughing
continues to slowly dig across the Upper Midwest/Great Lakes region,
forcing for ascent may maintain vigorous thunderstorm development
posing a risk for severe hail and wind across parts of southeastern
Wisconsin/northeastern Illinois into portions of northwestern
Indiana into mid to late evening.
..Kerr.. 06/25/2026
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