WW 299 SEVERE TSTM MN WI 100630Z - 101200Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 299
NWS Storm Prediction Center Norman OK
130 AM CDT Wed Jun 10 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern and Eastern Minnesota
Western Wisconsin
* Effective this Wednesday morning from 130 AM until 700 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A band of strong to severe thunderstorms will continue
northeastward through the early morning hours with primary potential
for damaging winds and some hail.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 45 miles northeast of
Saint Cloud MN to 35 miles south southwest of Rochester MN. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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 297...WW 298...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
23035.
...Guyer
WW 0300 Status Updates
STATUS REPORT ON WW 300
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ENE STC
TO 10 SE BRD TO 30 NW BRD.
..WENDT..06/10/26
ATTN...WFO...DLH...
STATUS REPORT FOR WS 300
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC001-017-021-035-061-071-115-137-101040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
AITKIN CARLTON CASS
CROW WING ITASCA KOOCHICHING
PINE ST. LOUIS
WIC013-031-113-129-101040-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BURNETT DOUGLAS SAWYER
WASHBURN
LSZ144-145-101040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
WW 0299 Status Updates
STATUS REPORT ON WW 299
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S RST TO
40 ESE MSP TO 40 E MSP TO 40 NE MSP TO 45 NNE MSP TO 45 ENE STC
TO 40 ENE STC TO 15 SE BRD.
..WENDT..06/10/26
ATTN...WFO...MPX...ARX...
STATUS REPORT FOR WS 299
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC045-065-095-109-157-169-101040-
MN
. MINNESOTA COUNTIES INCLUDED ARE
FILLMORE KANABEC MILLE LACS
OLMSTED WABASHA WINONA
WIC005-011-017-033-035-091-093-095-107-109-121-101040-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BARRON BUFFALO CHIPPEWA
DUNN EAU CLAIRE PEPIN
PIERCE POLK RUSK
ST. CROIX 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.
WW 0298 Status Updates
STATUS REPORT ON WW 298
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SSE AXN
TO 35 W AXN TO 20 ESE FAR TO 25 SSE GFK TO 30 S HCO TO 40 NE HCO.
..WENDT..06/10/26
ATTN...WFO...FGF...ABR...MPX...
STATUS REPORT FOR WS 298
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC005-007-027-029-041-051-057-067-069-077-087-089-107-111-113-
119-121-125-129-135-159-100840-
MN
. MINNESOTA COUNTIES INCLUDED ARE
BECKER BELTRAMI CLAY
CLEARWATER DOUGLAS GRANT
HUBBARD KANDIYOHI KITTSON
LAKE OF THE WOODS MAHNOMEN MARSHALL
NORMAN OTTER TAIL PENNINGTON
POLK POPE RED LAKE
RENVILLE ROSEAU WADENA
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 1062 CONCERNING SEVERE THUNDERSTORM WATCH 299... FOR WESTERN/CENTRAL WISCONSIN
Mesoscale Discussion 1062
NWS Storm Prediction Center Norman OK
0618 AM CDT Wed Jun 10 2026
Areas affected...Western/central Wisconsin
Concerning...Severe Thunderstorm Watch 299...
Valid 101118Z - 101245Z
The severe weather threat for Severe Thunderstorm Watch 299
continues.
SUMMARY...An isolated large hail and damaging wind threat will
accompany a small cluster of storms moving into central Wisconsin
this morning.
DISCUSSION...Warm advection over the outflow from earlier morning
convection has promoted a few stronger/deeper thunderstorms within
the northern Coulee region. This activity is on the fringe of the
steeper mid-level lapse rates and effective shear (perhaps around
25-30 kt). It is not clear how far east this complex of storms will
progress as buoyancy and shear decrease with eastward extent and the
low-level jet will weaken. The current thinking is that isolated
large hail and perhaps strong/damaging winds are possible over the
next 1-2 hours. An additional watch is not currently expected this
morning.
..Wendt.. 06/10/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...GRB...ARX...MPX...
LAT...LON 44429155 45059143 45229022 45188981 44898957 44478942
44268970 44099066 43989142 44429155
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0225 AM CDT Wed Jun 10 2026
Valid 121200Z - 131200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE
MID-ATLANTIC INTO CENTRAL APPALACHIANS...
...SUMMARY...
Scattered severe storms capable of damaging winds and some large
hail are possible across the Mid-Atlantic into Central Appalachians
Friday afternoon and evening.
...Synopsis...
A short-wave trough over the upper Great Lakes and OH Valley Friday
morning will progress through southwest Ontario to along the St.
Lawrence Valley, with a corridor of height falls and stronger
mid-level winds overspreading the lower Great Lakes into
Mid-Atlantic. At the surface, a cold front will move through the
lower Great Lakes and central Appalachians before merging with lee
troughing east of the northern and central Appalachians.
...Mid-Atlantic into Central Appalachians...
A hot and moist air mass is expected to exist across the pre-frontal
warm sector Friday afternoon with temperatures in the upper 80s to
upper 90s and dewpoints in the 60s to low/mid 70s. While mid-level
lapse rates are expected to remain modest, the high theta-e boundary
layer will largely contribute to moderate instability. The glancing
influence of the short-wave trough coupled with convergence along
the cold front and lee trough, in addition to terrain influences are
expected to foster scattered to numerous thunderstorms through the
peak of the diurnal heating cycle.
The strongest vertical shear of 30-40 kt is forecast from the lower
OH Valley into the lower Great Lakes, where the potential will exist
for some transient supercell and bowing structures capable of large
hail and damaging winds. Vertical shear will be comparatively weaker
along the lee trough; however, both low-level lapse rates and
instability will be greater, supporting potential for damaging
downburst winds and marginally severe hail. There is some model
signal that storms will coalesce into multiple clusters by late
afternoon into early evening with a potentially more concentrated
area of damaging winds reaching the Mid-Atlantic Coast.
...Mid-South into the Central and South High Plains...
Moderate to strong instability is forecast south of the surface
front, which is expected to stall across the discussion area. In the
absence of appreciable forcing for ascent, the models vary on the
location and coverage of diurnally enhanced storms, which could pose
some severe-weather threat. Severe-weather probabilities may
eventually be added to some of the area once confidence in storm
evolution becomes more clear.
..Mead.. 06/10/2026
Day 4-8 Outlook
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0326 AM CDT Wed Jun 10 2026
Valid 131200Z - 181200Z
...DISCUSSION...
...Day 4/Saturday...
The models are in generally good agreement in depicting a prominent,
mid/upper-level low over Ontario with a secondary, weaker low or
short-wave trough across the northern Rockies. A belt of enhanced,
westerly winds in the mid levels will reside to the south of those
features from the northern Plains through the Great Lakes. At the
surface, an area of low pressure is forecast across the central
Plains with an associated front extending northeast into the upper
Great Lakes.
A strongly unstable air mass is forecast ahead of the front across
portions of the mid/lower MO Valley into Ozark Plateau with
instability decreasing with northeastward extent into the upper
Great Lakes. The models indicate sufficiently strong deep-layer
shear across the frontal zone to support organized storm modes,
including supercells. Highest confidence in greater storm coverage
and an associated severe-weather threat remains centered on the
mid/lower MO Valleys. Severe-weather probabilities may need to be
extended into the upper Great Lakes in subsequent outlooks.
...Day 5/Sunday...
A number of the deterministic models indicate a short-wave trough
and associated jet streak moving through the Great Lakes into
Northeast, within the base of the Ontario upper low. Farther west,
the northern Rockies short-wave trough will advance toward the
central Rockies. At the surface, a cold front associated with the
former disturbance mentioned above will progress through the
Northeast and OH Valley, with the western extension of the boundary
stalling across the southern Plains.
The models indicate a narrow axis of modest instability developing
by afternoon ahead of the front from the northern New England to the
upper OH Valley, where the strongest vertical shear is forecast.
Some severe weather appears possible in those areas; however, the
limited extent of the warm sector leads to uncertainty in the
coverage and duration of any threat.
Greater instability and a wider warm sector are forecast with
southwestward extent from the OH River and TN Valley into southern
Plains. Generally weak vertical shear is forecast across the frontal
zone, which should limit the degree of storm organization. A
possible exception is across the southern and central High Plains,
where an easterly low-level wind component will boost deep-layer
shear to some extent. Model trends will be monitored for the
possible inclusion of severe-weather probabilities in that area.
...Day 6/Monday...
The deterministic models are in reasonably good agreement in
amplifying the aforementioned short-wave trough over the central
Plains with an associated belt of enhanced mid-level flow extending
through the OH Valley into Northeast. At the surface, there is some
signal that an area of low pressure could develop along a front
across the southern Plains into Ozark Plateau. Some severe-weather
threat appears possible in that area, as well as along the front
that is expected to stretch east through the TN Valley into the
Carolinas. Predictability in the specific details are too low to
include an area.
...Days 7-8/Tuesday and Wednesday...
The ensemble mean solutions are in relatively good agreement in
suggesting the central Plains short-wave trough will become absorbed
into broader-scale trough amplification east of the MS Valley. At
the surface, it appears that a frontal wave will move from the TN
Valley toward the Mid-Atlantic coast, while a trailing cold front
advances into the Gulf Coast states. While areas of severe weather
are possible during this time frame, predictability in their
location is low.
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