WW 308 TORNADO IL 110005Z - 110400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 308
NWS Storm Prediction Center Norman OK
705 PM CDT Wed Jun 10 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northern and Central Illinois
* Effective this Wednesday evening from 705 PM until 1100 PM CDT.
* Primary threats include...
A couple tornadoes possible
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...A severe squall line will move into the Watch area this
evening with a risk for a couple of tornadoes and scattered severe
gusts (60 to 75 mph).
The tornado watch area is approximately along and 45 statute miles
east and west of a line from 35 miles northwest of Marseilles IL to
50 miles south of Peoria IL. For a complete depiction of the watch
see the associated watch outline update (WOUS64 KWNS WOU8).
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 301...WW 302...WW
303...WW 304...WW 305...WW 306...WW 307...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 400. Mean
storm motion vector 24035.
...Smith
WW 307 SEVERE TSTM MI LE LH 102340Z - 110400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 307
NWS Storm Prediction Center Norman OK
740 PM EDT Wed Jun 10 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Lower Michigan
Lake Erie
Lake Huron
* Effective this Wednesday night from 740 PM until Midnight EDT.
* Primary threats include...
Scattered damaging wind gusts to 60 mph possible
SUMMARY...A squall line with embedded cells will continue east into
the Watch area this evening. The primary hazard with the more
intense portions of the squall line will be damaging gusts ranging
50-60 mph.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 50 miles north northwest
of Bad Axe MI to 30 miles south southwest of Detroit MI. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU7).
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 301...WW 302...WW
303...WW 304...WW 305...WW 306...
AVIATION...A few severe thunderstorms with hail surface and aloft to
0.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A
few cumulonimbi with maximum tops to 400. Mean storm motion vector
24040.
...Smith
WW 306 SEVERE TSTM IN MI OH LM 102140Z - 110300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 306
NWS Storm Prediction Center Norman OK
540 PM EDT Wed Jun 10 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Northern Indiana
Western into Central Lower Michigan
Far Northwest Ohio
Lake Michigan
* Effective this Wednesday afternoon and evening from 540 PM
until 1100 PM EDT.
* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 80 mph possible
Isolated large hail events to 1 inch in diameter possible
A tornado or two possible
SUMMARY...An extensive squall line will continue east into the Watch
area with the primary severe hazard being severe gusts and wind
damage. Severe gusts within the more intense portions of the squall
line will generally range 60 to 70 mph but localized gusts up to 80
mph are possible. A brief tornado is possible with any stronger
mesovortex that could develop within the squall line.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 40 miles east northeast
of Manistee MI to 45 miles east southeast of Lafayette IN. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).
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 301...WW 302...WW
303...WW 304...WW 305...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 70 knots. A few
cumulonimbi with maximum tops to 450. Mean storm motion vector
25040.
...Smith
WW 305 TORNADO IA IL MO 102100Z - 110400Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 305
NWS Storm Prediction Center Norman OK
400 PM CDT Wed Jun 10 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southeast Iowa
Far West-Central Illinois
Northeast Missouri
* Effective this Wednesday afternoon and evening from 400 PM
until 1100 PM CDT.
* Primary threats include...
A few tornadoes and a couple intense tornadoes possible
Scattered large hail and isolated very large hail events to 2
inches in diameter likely
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
SUMMARY...Thunderstorms coverage and intensity is expected to
increase across the region this afternoon and evening as a cluster
approaching from the west and outflow modifies under strong
low-level moisture advection. Supercells capable of all severe
hazards, including very large hail and tornadoes, are possible.
Strong to severe downbursts are possible as well, particularly if
the upstream cluster grows upscale.
The tornado watch area is approximately along and 50 statute miles
east and west of a line from 45 miles northwest of Moline IL to 60
miles south southwest of Quincy IL. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU5).
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 301...WW 302...WW
303...WW 304...
AVIATION...Tornadoes and 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 24035.
...Mosier
WW 303 TORNADO IA KS MO NE 101910Z - 110200Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 303
NWS Storm Prediction Center Norman OK
210 PM CDT Wed Jun 10 2026
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southern Iowa
Central and Eastern Kansas
Northwest and North-Central Missouri
Extreme Southeast Nebraska
* Effective this Wednesday afternoon and evening from 210 PM
until 900 PM CDT.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
SUMMARY...Thunderstorm development is anticipated this afternoon
within the warm and very unstable airmass across the region.
Deep-layer shear is strong enough for supercells capable of all
hazards, including very large hail to 3" in diameter and tornadoes.
A strong tornado (EF2+) is possible. Strong downbursts are
anticipated as well, with one or more severe bowing clusters
possible as the mode trends more linear with time.
The tornado watch area is approximately along and 60 statute miles
north and south of a line from 45 miles southwest of Manhattan KS to
35 miles south southeast of Ottumwa IA. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU3).
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 301...WW 302...
AVIATION...Tornadoes and 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 24030.
...Mosier
WW 301 SEVERE TSTM IA IL MN WI 101700Z - 110000Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 301
NWS Storm Prediction Center Norman OK
1200 PM CDT Wed Jun 10 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Far Eastern Iowa
Northwest Illinois
Extreme Southeast Minnesota
Wisconsin
* Effective this Wednesday afternoon and evening from NOON until
700 PM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...Ongoing convective line across far east-central Iowa is
forecast to continue northeastward into central/southern Wisconsin,
with an attendant threat for damaging gusts. Additional development
is anticipated farther north from far southeast Minnesota into
northern Wisconsin. Some initially cellular development could
produce large hail. Quick transition to a more linear mode is
expected here as well, with damaging wind then becoming the primary
risk.
The severe thunderstorm watch area is approximately along and 105
statute miles north and south of a line from 55 miles north
northwest of Cedar Rapids IA to 60 miles east southeast of Mosinee
WI. For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU1).
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
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24040.
...Mosier
WW 0308 Status Updates
STATUS FOR WATCH 0308 HAS NOT BEEN ISSUED YET
WW 0307 Status Updates
STATUS REPORT ON WW 307
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BENTLEY..06/11/26
ATTN...WFO...APX...DTX...
STATUS REPORT FOR WS 307
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MIC011-017-049-051-063-069-087-091-093-099-111-115-125-129-145-
147-151-155-157-161-163-110140-
MI
. MICHIGAN COUNTIES INCLUDED ARE
ARENAC BAY GENESEE
GLADWIN HURON IOSCO
LAPEER LENAWEE LIVINGSTON
MACOMB MIDLAND MONROE
OAKLAND OGEMAW SAGINAW
ST. CLAIR SANILAC SHIAWASSEE
TUSCOLA WASHTENAW WAYNE
LCZ422-423-460-LEZ444-LHZ349-363-421-422-441-442-443-462-463-464-
110140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
ST. CLAIR RIVER
DETROIT RIVER
WW 0306 Status Updates
STATUS REPORT ON WW 306
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W IND TO
20 ESE LAF TO 40 NW MIE TO 15 W FWA TO 45 N FWA TO 25 W JXN TO 10
NW LAN TO 35 NNW LAN TO 50 NNE GRR TO 25 ENE TVC.
..BENTLEY..06/11/26
ATTN...WFO...IWX...IND...GRR...APX...
STATUS REPORT FOR WS 306
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC001-003-009-011-023-033-053-067-069-075-151-159-169-179-
110140-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS ALLEN BLACKFORD
BOONE CLINTON DE KALB
GRANT HOWARD HUNTINGTON
JAY STEUBEN TIPTON
WABASH WELLS
MIC023-025-035-037-045-057-059-065-073-075-113-143-110140-
MI
. MICHIGAN COUNTIES INCLUDED ARE
BRANCH CALHOUN CLARE
CLINTON EATON GRATIOT
HILLSDALE INGHAM ISABELLA
JACKSON MISSAUKEE ROSCOMMON
WW 0305 Status Updates
STATUS REPORT ON WW 305
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BENTLEY..06/10/26
ATTN...WFO...DVN...LSX...
STATUS REPORT FOR WT 305
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-009-013-067-071-073-109-131-149-161-187-195-110040-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS BROWN CALHOUN
HANCOCK HENDERSON HENRY
MCDONOUGH MERCER PIKE
ROCK ISLAND WARREN WHITESIDE
IAC031-045-057-087-095-097-101-103-105-107-111-113-115-139-163-
177-183-110040-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY IOWA JACKSON
JEFFERSON JOHNSON JONES
KEOKUK LEE LINN
LOUISA MUSCATINE SCOTT
VAN BUREN WASHINGTON
MOC007-045-103-111-113-127-137-163-173-199-205-110040-
WW 0304 Status Updates
STATUS REPORT ON WW 304
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSE MTO
TO 20 E DNV.
..BENTLEY..06/10/26
ATTN...WFO...ILX...LOT...
STATUS REPORT FOR WS 304
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC045-110040-
IL
. ILLINOIS COUNTIES INCLUDED ARE
EDGAR
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 0303 Status Updates
STATUS REPORT ON WW 303
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BENTLEY..06/10/26
ATTN...WFO...DMX...OAX...EAX...TOP...ICT...
STATUS REPORT FOR WT 303
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC003-007-039-051-053-117-135-145-159-173-175-179-185-110040-
IA
. IOWA COUNTIES INCLUDED ARE
ADAMS APPANOOSE CLARKE
DAVIS DECATUR LUCAS
MONROE PAGE RINGGOLD
TAYLOR UNION WAPELLO
WAYNE
KSC005-013-017-027-041-043-045-061-079-085-087-091-103-111-113-
115-117-127-131-139-143-149-161-169-177-197-209-110040-
KS
. KANSAS COUNTIES INCLUDED ARE
ATCHISON BROWN CHASE
CLAY DICKINSON DONIPHAN
DOUGLAS GEARY HARVEY
JACKSON JEFFERSON JOHNSON
LEAVENWORTH LYON MCPHERSON
MARION MARSHALL MORRIS
NEMAHA OSAGE OTTAWA
POTTAWATOMIE RILEY SALINE
WW 0302 Status Updates
STATUS REPORT ON WW 302
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 ESE BRD
TO 40 SW HIB TO 40 NW HIB TO 30 NE INL.
..BENTLEY..06/11/26
ATTN...WFO...DLH...FGF...
STATUS REPORT FOR WS 302
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MNC001-017-061-071-115-137-110140-
MN
. MINNESOTA COUNTIES INCLUDED ARE
AITKIN CARLTON ITASCA
KOOCHICHING PINE ST. LOUIS
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 0301 Status Updates
STATUS REPORT ON WW 301
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BENTLEY..06/10/26
ATTN...WFO...ARX...DVN...LOT...MPX...GRB...DLH...MKX...
STATUS REPORT FOR WS 301
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-037-073-085-103-111-131-141-155-161-177-195-201-
102240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
DE KALB HENRY JO DAVIESS
LEE MCHENRY MERCER
OGLE PUTNAM ROCK ISLAND
STEPHENSON WHITESIDE WINNEBAGO
IAC005-019-031-043-045-055-061-065-097-105-113-139-163-191-
102240-
IA
. IOWA COUNTIES INCLUDED ARE
ALLAMAKEE BUCHANAN CEDAR
CLAYTON CLINTON DELAWARE
DUBUQUE FAYETTE JACKSON
JONES LINN MUSCATINE
SCOTT WINNESHIEK
MD 1078 CONCERNING TORNADO WATCH 308... FOR PORTIONS OF NORTHERN ILLINOIS AND NORTHWEST INDIANA
Mesoscale Discussion 1078
NWS Storm Prediction Center Norman OK
0755 PM CDT Wed Jun 10 2026
Areas affected...portions of northern Illinois and northwest Indiana
Concerning...Tornado Watch 308...
Valid 110055Z - 110230Z
The severe weather threat for Tornado Watch 308 continues.
SUMMARY...Severe/damaging gusts and a couple of QLCS tornadoes
remain possible with a well-developed line of storms across northern
IL. Conditions are being monitored for a downstream Severe
Thunderstorm Watch.
DISCUSSION...Across Tornado Watch 308, a severe squall line extended
from northern IL southwestward toward the MS River. The northern
most section of the line remains severe despite limited buoyancy
from earlier convection. This section should approach the Chicago
metro in the next hour with a risk for isolated damaging gusts and a
brief QLCS tornado or two.
Farther southwest, the environment is more unstable and this section
of the line has started to show internal surges that could result in
another bowing segment. Shear remains robust and a 40+ kt low-level
jet should bolster the southern portions of the line this evening.
The threat for severe gusts and QLCS tornado or two will continue
across the Tornado Watch area in portions of central IL, and may
extend into portions of northwestern IN tonight. A downstream Severe
Thunderstorm Watch is being considered for northeastern IL into
northwest IN.
..Lyons/Smith.. 06/11/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...IWX...IND...LOT...ILX...DVN...
LAT...LON 41768756 41668708 41658681 41318652 40958657 40768664
40438707 40288892 40209017 40319042 40539037 40769016
41098956 41318912 41578903 41768899 42028892 42158896
42188841 42158778 41768756
MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0452 PM CDT Wed Jun 10 2026
Valid 121200Z - 181200Z
...Synopsis...
Broad upper-level troughing will be in place over the
Manitoba/Ontario region continuing on Day 3/Friday as a ridge begins
to build over the west coast. A shortwave trough is forecast to
push south/eastward around the base of the persistent Canadian
trough, moving through the northern Rockies around Day 5/Sunday. A
breakdown of the upper-level ridge will begin early next week as a
jet max progresses ahead of another northern Pacific trough. This
trough is currently anticipated to arrive onshore of the Pacific
Northwest late next week, nudging the remnants of the western ridge
over the Great Plains by late next week.
...Day 3/Friday...
...Four Corners, Southern Colorado Rockies, and Great Basin...
The broader fire weather threat will linger and become more focused
over the central Rockies and nearby portions of the central High
Plains through Day 3/Friday. Additionally, portions of the Snake
River Plain will also experience these winds as a cold front
approaches from the north ahead of the aforementioned shortwave.
This will allow for above normal surface temperatures and coincident
dry afternoon Rh's (5-15%) on Day 3/Friday that will combine with
westerly winds (sustained at 10-20 mph) across both highlighted
areas.
...Day 4/Saturday...
A relatively skinny ridge in place over the western CONUS, a subtle
mid-level shortwave moving over the Southwest, and a plume of
moisture advecting northward from Tropical Storm Boris will lead to
potential convection primarily over the southern Great Basin on Day
4/Saturday. This combined with dry antecedent conditions from
multiple days of the recent hot, dry, and windy pattern will result
in a dry thunderstorm concern over northern AZ into southern UT. The
latest forecast guidance has sped up the northern reach of this
moisture a bit, necessitating a northward shift of the existing 10
percent Dry Thunderstorm area. Modifications to this area will
likely be required in subsequent outlooks as forecast certainty
increases.
Thereafter, a lingering isolated dry thunderstorm threat isn't out
of the question over the central/southern Great Basin on Day
5/Sunday. However, depending on how moisture advection trends with
forecast guidance, the threat beyond Day 4/Saturday will likely be
dampened. Additionally, the breakdown of the upper-level ridge in
place over the west will likely lead to fire weather concerns
sometime next week across a broad area of the Intermountain West.
However, the placement and timing of that threat is currently
unknown. This scenario will be watched closely as details become
more clear.
..Stearns.. 06/10/2026
...Please see www.spc.noaa.gov/fire for graphic product...
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