WW 275 SEVERE TSTM IA KS MO NE 052245Z - 060500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 275
NWS Storm Prediction Center Norman OK
545 PM CDT Fri Jun 5 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southwest Iowa
North-Central and Northeast Kansas
Northwest Missouri
Southern and Eastern Nebraska
* Effective this Friday afternoon from 545 PM until Midnight 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 2
inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms should continue to develop this evening
along/near the Kansas/Nebraska border. The strongest thunderstorms
should pose a threat for large to very large hail (up to 2 inches in
diameter) and severe/damaging winds (up to 65-75 mph). A tornado or
two is also possible along/near a stationary front.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 30 miles southwest of
Hastings NE to 30 miles east of Shenandoah IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
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 274...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27020.
...Gleason
WW 274 SEVERE TSTM MN WI 052025Z - 060400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 274
NWS Storm Prediction Center Norman OK
325 PM CDT Fri Jun 5 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Southern Minnesota
West-Central Wisconsin
* Effective this Friday afternoon and evening from 325 PM until
1100 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 65 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Scattered thunderstorms are currently ongoing across
west-central Minnesota and northwest Wisconsin this afternoon. These
storms will likely continue eastward/southeastward throughout the
afternoon, posing a threat for large hail and damaging gusts from
central/southern Minnesota and west-central Wisconsin.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 55 miles northwest of
Redwood Falls MN to 30 miles north of Camp Douglas WI. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30025.
...Mosier
WW 0276 Status Updates
STATUS FOR WATCH 0276 HAS NOT BEEN ISSUED YET
WW 0275 Status Updates
STATUS REPORT ON WW 275
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 N RSL TO
20 SE OFK.
..LYONS..06/06/26
ATTN...WFO...OAX...TOP...EAX...GID...
STATUS REPORT FOR WS 275
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC071-129-137-145-155-060340-
IA
. IOWA COUNTIES INCLUDED ARE
FREMONT MILLS MONTGOMERY
PAGE POTTAWATTAMIE
KSC013-043-089-117-131-157-201-060340-
KS
. KANSAS COUNTIES INCLUDED ARE
BROWN DONIPHAN JEWELL
MARSHALL NEMAHA REPUBLIC
WASHINGTON
MOC003-005-087-147-060340-
MO
. MISSOURI COUNTIES INCLUDED ARE
ANDREW ATCHISON HOLT
WW 0274 Status Updates
STATUS REPORT ON WW 274
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WSW RST
TO 40 WNW RST TO 35 SE MSP TO 35 SW EAU TO 30 S EAU TO 20 NNE VOK.
..DEAN..06/06/26
ATTN...WFO...MPX...ARX...
STATUS REPORT FOR WS 274
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC039-109-157-169-060240-
MN
. MINNESOTA COUNTIES INCLUDED ARE
DODGE OLMSTED WABASHA
WINONA
WIC053-063-081-091-121-060240-
WI
. WISCONSIN COUNTIES INCLUDED ARE
JACKSON LA CROSSE MONROE
PEPIN TREMPEALEAU
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.
MD 0994 CONCERNING SEVERE THUNDERSTORM WATCH 274... FOR PARTS OF SOUTHERN/EASTERN WI AND ADJACENT PARTS OF SOUTHEAST MN/NORTHEAST IA
Mesoscale Discussion 0994
NWS Storm Prediction Center Norman OK
0918 PM CDT Fri Jun 05 2026
Areas affected...Parts of southern/eastern WI and adjacent parts of
southeast MN/northeast IA
Concerning...Severe Thunderstorm Watch 274...
Valid 060218Z - 060345Z
The severe weather threat for Severe Thunderstorm Watch 274
continues.
SUMMARY...An isolated severe threat may continue into late evening,
before an eventual weakening trend.
DISCUSSION...A large storm cluster is moving southeastward across
central WI this evening. While the environment remains somewhat
favorable, with MLCAPE of greater than 1500 J/kg and 30-40 kt of
effective shear, much of the convection has been undercut by
outflow. Small line segments to the east of La Crosse and south of
Green Bay have taken on a more favorable north-south orientation,
and may pose a localized damaging-wind threat for as long as they
keep pace with the outflow. Additionally, a small supercell has
developed ahead of the storm cluster, to the southwest of Oshkosh.
With 0-1 km SRH of 100-200 m2/s2 (per objective mesoanalysis and the
KMKE VWP), this cell may pose some tornado potential for as long as
it persists.
With the onset of nocturnal cooling/stabilization, a general
weakening trend is expected with time later this evening, and
additional watch issuance is considered unlikely.
..Dean/Gleason.. 06/06/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...GRB...MKX...ARX...
LAT...LON 44529194 44079095 43968966 44118879 44398832 44658815
44778793 44708753 43588752 43268776 42958854 42939062
43299168 43899225 44529194
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0800 PM CDT Fri Jun 05 2026
Valid 060100Z - 061200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE CENTRAL PLAINS INTO THE MID MISSOURI AND MID MISSISSIPPI
VALLEYS...
...SUMMARY...
Thunderstorms with large hail and severe wind gusts are expected
this evening from parts of the central Plains into the mid Missouri
and mid Mississippi Valleys. Isolated wind gusts and hail will also
be possible in parts of the upper Mississippi Valley and western
Great Lakes.
...Central Plains/Mid Missouri and Mid Mississippi Valleys...
A mid-level shortwave trough is currently evident on water vapor
imagery over the north-central U.S. The southern part of the trough
extends southwestward into the central Plains. Ahead of this
feature, a moist and unstable airmass is in place from southern
Nebraska and northern Missouri northward into much of Iowa, where
surface dewpoints are in the upper 60s and lower 70s F. Along the
moist axis, the RAP currently has a pocket of strong instability
centered over the mid Missouri Valley with MLCAPE in the 3000 to
4500 J/kg range. A front, where low-level convergence is maximized,
is evident on surface analysis from northwest Iowa southwestward
into south-central Nebraska. Thunderstorms have recently developed
near the front in southeast Nebraska. These storms are expected to
steadily increase in coverage this evening as the shortwave trough
approaches.
From southeast Nebraska into southern Iowa early this evening, RAP
forecast soundings have 0-6 km shear in the 25 to 35 knot range with
700-500 mb lapse rates around 7 C/km. This environment will support
supercells with large hail. Hailstones greater than 2 inches in
diameter will be possible with the more dominant supercells...see
MCD 992. Short-term model forecasts suggest that a cluster of strong
to severe storms will organize during the evening. As this occurs,
the wind-damage threat will likely increase. If a line segment can
become intense, then wind gusts above 70 mph will be possible. The
severe threat will gradually develop eastward across southern Iowa
into northern Illinois from mid to late evening. An isolated severe
threat may persist into the early overnight period.
...Upper Mississippi Valley/Western Great Lakes...
A surface low is evident on surface analysis over northeast
Wisconsin with a cold front extending southwestward across central
and western Wisconsin. A line of strong thunderstorms is ongoing
along the front. Ahead of the front, surface dewpoints in the mid to
upper 60s F are contributing to moderate instability, with the RAP
showing MLCAPE in the 1000 to 2500 J/kg range. Ahead of the front,
the Green Bay and La Crosse WSR-88D VWPs have 0-6 km shear in the 25
to 35 knot range suggesting that deep-layer shear is strong enough
for an isolated severe threat. The more organized multicells along
the line could have potential for hail and isolated severe gusts for
a couple more hours this evening.
..Broyles.. 06/06/2026
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0457 PM CDT Fri Jun 05 2026
Valid 071200Z - 131200Z
...Synopsis...
A deepening upper-level trough will bring multiple rounds of
enhanced flow across portions of the western US from the
Intermoutain West into the Great Basin and Southwest. Multiple
periods of critical fire weather will be likely from D3/Sunday
through D6/Wednesday. Beyond the mid-week, flow aloft weakens
gradually. A few areas of locally critical conditions may persist
across the southwest D7/Thursday.
...Day 3/Sunday...
The upper-level low will advance towards the Northern Rockies, with
a trailing cold front further south and east. The strongest winds
aloft will overspread eastern UT, northern and eastern AZ, and
western CO. Expect sustained southwest winds of 20 to 25 mph to
overlap afternoon relative humidity reductions to 5 to 15 percent,
across the Southern Rockies and Southwest. The 70 percent Critical
probability remains across southern and eastern UT, northern AZ, and
western CO. 40 percent Critical probabilities encompass the
remaining portions of southeast NV, northwest NM, and central WY
where fuels are receptive. While confidence is not yet high enough
to warrant a drawn area, a non-zero chance of mixed dry/wet
thunderstorms over northern UT will be watched with future forecast
guidance.
Strong mid-level flow will also overspread portions of southern
Idaho on D3/Sunday. A secondary 70% critical region was introduced
across the Snake River Plain. In this region, strong westerly
surface flow around 20-30 mph will overlap relative humidity
reductions to around 10-15 percent and critically dry fuels.
...Day 4/Monday...
The region enters a temporary synoptic transition phase between the
departing northern Rockies trough and the next approaching Pacific
system. Broad and persistent southwesterly flow will continue across
Southwest and Great Basin. Deeply mixed profiles under clear skies
will generate localized breezy conditions with 15 to 25 mph gusts
amid relative humidity reductions to 5 to 15%. The 70% area was
maintained with this update across southern Utah into northern
Arizona with a slight expansion into western Colorado. 40% Critical
probabilities encompass the remaining portions of southeast NV,
western CO, and central WY where fuels are receptive.
...Day 5/Tuesday - Day 7/Thursday...
Medium-range models and ensemble guidance show strong consensus for
a secondary, potentially more intense trough digging into the
western US again by mid-week. Ahead of this feature, an amplified
pressure gradient will trigger strong south/southwest surface winds.
This will likely cause continued widespread critical fire weather
conditions across a large swath of the Great Basin and Southwest. A
70 percent Critical probability was maintained across southern UT
and northern AZ D5/Tuesday where confidence is highest. Slight
expansion of the 70% was given in western Colorado where confidence
in stronger winds has increased. A 40 percent Critical probability
also continues Tuesday and Wednesday in nearby areas including far
eastern NV and portions of central WY.
A small 40% area was introduced across northern Arizona into
southern Utah D7/Thursday. Consensus is increasing that continued
overlap of dry/windy conditions will continue into this period.
After multiple rounds of windy/dry conditions fuels in the region
will be critically dry.
..Thornton.. 06/05/2026
...Please see www.spc.noaa.gov/fire for graphic product...
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