Tessera

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 552 Status Reports ⛈️WFO...CLE🌪️ Additional Details Here.

STATUS REPORT ON WW 552

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE MGW
TO 35 SSE DUJ TO 40 SE BFD TO 35 E BFD.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1897

..MEAD..08/10/26

ATTN...WFO...CLE...PBZ...CTP...

STATUS REPORT FOR WS 552

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

PAC009-013-021-027-035-057-061-081-087-105-111-113-117-101840-

PA
. PENNSYLVANIA COUNTIES INCLUDED ARE

BEDFORD BLAIR CAMBRIA
CENTRE CLINTON FULTON
HUNTINGDON LYCOMING MIFFLIN
POTTER SOMERSET SULLIVAN
TIOGA

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.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 553 Status Reports ⛈️WFO...BGM🌪️ Additional Details Here.

STATUS REPORT ON WW 553

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1897

..MEAD..08/10/26

ATTN...WFO...BGM...CTP...

STATUS REPORT FOR WS 553

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

NYC007-015-097-101-107-109-101840-

NY
. NEW YORK COUNTIES INCLUDED ARE

BROOME CHEMUNG SCHUYLER
STEUBEN TIOGA TOMPKINS

PAC001-015-037-041-043-055-067-069-071-075-079-093-097-099-107-
109-115-119-127-131-133-101840-

PA
. PENNSYLVANIA COUNTIES INCLUDED ARE

ADAMS BRADFORD COLUMBIA
CUMBERLAND DAUPHIN FRANKLIN
JUNIATA LACKAWANNA LANCASTER
LEBANON LUZERNE MONTOUR
NORTHUMBERLAND PERRY SCHUYLKILL
SNYDER SUSQUEHANNA UNION
WAYNE WYOMING YORK

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 554 Status Reports ⛈️WFO...RLX🌪️ Additional Details Here.

STATUS REPORT ON WW 554

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..MEAD..08/10/26

ATTN...WFO...RLX...ILN...PBZ...

STATUS REPORT FOR WS 554

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

KYC019-043-089-127-135-101840-

KY
. KENTUCKY COUNTIES INCLUDED ARE

BOYD CARTER GREENUP
LAWRENCE LEWIS

OHC001-009-053-071-079-087-105-131-141-145-163-167-101840-

OH
. OHIO COUNTIES INCLUDED ARE

ADAMS ATHENS GALLIA
HIGHLAND JACKSON LAWRENCE
MEIGS PIKE ROSS
SCIOTO VINTON WASHINGTON

WVC001-005-007-011-013-015-017-019-021-033-035-039-041-043-053-
067-073-075-079-083-085-087-091-093-095-097-099-101-105-107-
101840-

WV
. WEST VIRGINIA COUNTIES INCLUDED ARE

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 555 Status Reports ⛈️WFO...LWX🌪️ Additional Details Here.

STATUS REPORT ON WW 555

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..MEAD..08/10/26

ATTN...WFO...LWX...

STATUS REPORT FOR WS 555

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

DCC001-101840-

DC
. DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE

DISTRICT OF COLUMBIA

MDC001-003-005-009-013-015-017-021-023-025-027-031-033-043-510-
101840-

MD
. MARYLAND COUNTIES INCLUDED ARE

ALLEGANY ANNE ARUNDEL BALTIMORE
CALVERT CARROLL CECIL
CHARLES FREDERICK GARRETT
HARFORD HOWARD MONTGOMERY
PRINCE GEORGES WASHINGTON

MARYLAND INDEPENDENT CITIES INCLUDED ARE

BALTIMORE CITY

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 552 ⛈️ Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY🌪️ Additional Details Here.

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 552
NWS Storm Prediction Center Norman OK
930 AM EDT Mon Aug 10 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Eastern Ohio
Western and Central Pennsylvania
Northern Panhandle of West Virginia
Lake Erie

* Effective this Monday morning and afternoon from 930 AM until
300 PM EDT.

* Primary threats include...
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...Intense thunderstorms over eastern Ohio will track
eastward across the watch area, posing risks of damaging wind gusts
and hail.

The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 20 miles southwest of
Akron OH to 10 miles east of State College PA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).

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 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
28030.

...Hart

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 553 ⛈️ Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1 inch in diameter possible SUMMARY🌪️ Additional Details Here.

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 553
NWS Storm Prediction Center Norman OK
1225 PM EDT Mon Aug 10 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Southern New York
Eastern Pennsylvania

* Effective this Monday afternoon and evening from 1225 PM until
700 PM EDT.

* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1 inch in diameter possible

SUMMARY...Thunderstorms continue to spread eastward across
Pennsylvania and southern New York. Locally damaging wind gusts
will be the main concern.

The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 40 miles west southwest
of Williamsport PA to 15 miles south southeast of Wilkesbarre PA.
For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU3).

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 552...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
27030.

...Hart

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 554 ⛈️ Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible SUMMARY🌪️ Additional Details Here.

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 554
NWS Storm Prediction Center Norman OK
1245 PM EDT Mon Aug 10 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Northeast Kentucky
Southeast Ohio
Central West Virginia

* Effective this Monday afternoon and evening from 1245 PM until
800 PM EDT.

* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...Thunderstorms over southeast Ohio are expected to persist
through the afternoon and spread across the watch area. Locally
damaging winds are possible with the strongest storms.

The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 60 miles west northwest
of Huntington WV to 10 miles south of Elkins WV. 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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 552...WW 553...

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 500. Mean storm motion vector
29030.

...Hart

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 20m ago

SPC Severe Thunderstorm Watch 555 ⛈️ Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1 inch in diameter possible SUMMARY🌪️ Additional Details Here.

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 555
NWS Storm Prediction Center Norman OK
115 PM EDT Mon Aug 10 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
District Of Columbia
Maryland
Northern Virginia
Eastern Panhandle of West Virginia
Coastal Waters

* Effective this Monday afternoon and evening from 115 PM until
900 PM EDT.

* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1 inch in diameter possible

SUMMARY...Thunderstorms will spread southeastward across the watch
area through the afternoon and early evening. Hot and humid
conditions will combine with favorable winds aloft for a risk of
damaging wind gusts in the stronger storms.

The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 85 miles west southwest
of Martinsburg WV to 40 miles east northeast of Baltimore MD. 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 552...WW 553...WW 554...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
29030.

...Hart

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 60m ago

SPC Severe Thunderstorm Watch 555 Status Reports ⛈️🌪️ Additional Details Here.

STATUS FOR WATCH 0555 HAS NOT BEEN ISSUED YET

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 60m ago

SPC Severe Thunderstorm Watch 555 ⛈️ Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1 inch in diameter possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 1h ago

SPC Severe Thunderstorm Watch 554 Status Reports ⛈️🌪️ Additional Details Here.

STATUS FOR WATCH 0554 HAS NOT BEEN ISSUED YET

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 1h ago

SPC Severe Thunderstorm Watch 554 ⛈️ Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 2h ago

SPC Severe Thunderstorm Watch 552 Status Reports ⛈️WFO...CLE🌪️ Additional Details Here.

STATUS REPORT ON WW 552

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NE ZZV TO
10 ENE HLG TO 20 E PIT TO 30 SSW DUJ TO 5 NE BFD.

..MEAD..08/10/26

ATTN...WFO...CLE...PBZ...CTP...

STATUS REPORT FOR WS 552

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

OHC013-059-111-119-121-101740-

OH
. OHIO COUNTIES INCLUDED ARE

BELMONT GUERNSEY MONROE
MUSKINGUM NOBLE

PAC003-009-013-021-023-027-033-035-047-051-057-059-061-063-065-
081-083-087-105-111-113-117-125-129-101740-

PA
. PENNSYLVANIA COUNTIES INCLUDED ARE

ALLEGHENY BEDFORD BLAIR
CAMBRIA CAMERON CENTRE
CLEARFIELD CLINTON ELK
FAYETTE FULTON GREENE
HUNTINGDON INDIANA JEFFERSON
LYCOMING MCKEAN MIFFLIN
POTTER SOMERSET SULLIVAN
TIOGA WASHINGTON WESTMORELAND

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 2h ago

SPC Severe Thunderstorm Watch 553 Status Reports ⛈️🌪️ Additional Details Here.

STATUS FOR WATCH 0553 HAS NOT BEEN ISSUED YET

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 2h ago

SPC Severe Thunderstorm Watch 552 ⛈️ Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 2h ago

SPC Severe Thunderstorm Watch 553 ⛈️ Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1 inch in diameter possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 2h ago

SPC Severe Thunderstorm Watch 552 Status Reports ⛈️WFO...CLE🌪️ Additional Details Here.

STATUS REPORT ON WW 552

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNE ZZV
TO 30 SSE YNG TO 35 SSE FKL TO 30 SW JHW.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1894

..MEAD..08/10/26

ATTN...WFO...CLE...PBZ...CTP...

STATUS REPORT FOR WS 552

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

OHC013-059-067-081-111-119-121-101640-

OH
. OHIO COUNTIES INCLUDED ARE

BELMONT GUERNSEY HARRISON
JEFFERSON MONROE MUSKINGUM
NOBLE

PAC003-005-007-009-013-021-023-027-031-033-035-047-051-057-059-
061-063-065-083-087-105-111-123-125-129-101640-

PA
. PENNSYLVANIA COUNTIES INCLUDED ARE

ALLEGHENY ARMSTRONG BEAVER
BEDFORD BLAIR CAMBRIA
CAMERON CENTRE CLARION
CLEARFIELD CLINTON ELK
FAYETTE FULTON GREENE
HUNTINGDON INDIANA JEFFERSON
MCKEAN MIFFLIN POTTER

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 2h ago

SPC Severe Thunderstorm Watch 552 ⛈️ Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 3h ago

SPC Severe Thunderstorm Watch 552 Status Reports ⛈️WFO...CLE🌪️ Additional Details Here.

STATUS REPORT ON WW 552

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..MEAD..08/10/26

ATTN...WFO...CLE...PBZ...CTP...

STATUS REPORT FOR WS 552

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

OHC007-013-019-029-031-059-067-081-099-111-119-121-133-151-155-
157-101540-

OH
. OHIO COUNTIES INCLUDED ARE

ASHTABULA BELMONT CARROLL
COLUMBIANA COSHOCTON GUERNSEY
HARRISON JEFFERSON MAHONING
MONROE MUSKINGUM NOBLE
PORTAGE STARK TRUMBULL
TUSCARAWAS

PAC003-005-007-009-013-019-021-023-027-031-033-035-039-047-049-
051-053-057-059-061-063-065-073-083-085-087-105-111-121-123-125-
129-101540-

PA
. PENNSYLVANIA COUNTIES INCLUDED ARE

ALLEGHENY ARMSTRONG BEAVER
BEDFORD BLAIR BUTLER
CAMBRIA CAMERON CENTRE
CLARION CLEARFIELD CLINTON
CRAWFORD ELK ERIE

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 4h ago

SPC Severe Thunderstorm Watch 552 ⛈️ Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 5h ago

SPC Severe Thunderstorm Watch 552 Status Reports ⛈️🌪️ Additional Details Here.

STATUS FOR WATCH 0552 HAS NOT BEEN ISSUED YET

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 5h ago

SPC Severe Thunderstorm Watch 552 ⛈️ Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 6h ago

SPC Aug 10, 2026 Day 4-8 Severe Weather Outlook ⛈️DISCUSSION🌪️ Additional Details Here.

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0354 AM CDT Mon Aug 10 2026

Valid 131200Z - 181200Z

...DISCUSSION...
...Thursday/Day 4 to Saturday/Day 6...
A mid-level ridge is forecast to move eastward through the
north-central U.S. on Thursday and into the Great Lakes region on
Friday. At the surface, a moist axis is forecast to remain in place
from the central Plains east-southeastward into the lower Ohio
Valley. Moderate to strong instability along the moist axis will
make isolated severe thunderstorms possible each afternoon and
evening. Additionally, a severe threat may develop near mid-level
shortwave troughs that are forecast to move through the northern
Plains and Mid-Atlantic on Friday.

On Saturday, a mid-level shortwave trough is forecast to move
through the Great Lakes region. Moderate to strong instability may
be in place over much of Illinois, Indiana and Ohio by afternoon.
Along the northern edge of the stronger instability, isolated severe
thunderstorms will be possible from Lower Michigan eastward into the
central Appalachians Saturday afternoon. Additional severe storms
may develop along an axis of moderate instability over parts of the
central Plains in the afternoon and evening.

Concerning the severe potential from Thursday to Saturday,
considerable variance exists among the model solutions concerning
the position of features, suggesting uncertainty is still too great
to add a threat area.

...Sunday/Day 7 and Monday/Day 8...
From Sunday into Monday, a broad cyclonic flow pattern is forecast
to develop over the northeastern U.S. A cold front is forecast to
move southward across the central and southern Appalachians. This
boundary would be the primary focus for convective development each
afternoon and evening. Ahead of the front, surface dewpoints in the
70s F along with moderate to strong instability would likely support
an isolated severe threat. However, considerable uncertainty exists
concerning the timing of the front. For this reason, predictability
is low at this extended range.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 11h ago

SPC Severe Thunderstorm Watch 550 Status Reports ⛈️WFO...DVN🌪️ Additional Details Here.

STATUS REPORT ON WW 550

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NW DNV TO
45 SE MMO TO 40 SW VPZ.

..KERR..08/10/26

ATTN...WFO...DVN...LOT...ILX...

STATUS REPORT FOR WS 550

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

ILC053-075-113-100840-

IL
. ILLINOIS COUNTIES INCLUDED ARE

FORD IROQUOIS MCLEAN

INC007-111-100840-

IN
. INDIANA COUNTIES INCLUDED ARE

BENTON NEWTON

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.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 11h ago

SPC Severe Thunderstorm Watch 550 ⛈️ Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY🌪️ Additional Details Here.

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 550
NWS Storm Prediction Center Norman OK
840 PM CDT Sun Aug 9 2026

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Far East-Central Iowa
Northern Illinois
Far Northwest Indiana
Lake Michigan

* Effective this Sunday night and Monday morning from 840 PM
until 400 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
A tornado or two possible

SUMMARY...Thunderstorm coverage and intensity is expected to
increase over the next few hours from far east-central Iowa into
northern Illinois and eventually far northwest Indiana. Large hail
is the primary risk initially, with an instance or two of very large
hail (i.e. 2" diameter) possible. Upscale growth is possible over
time, with the resulting convective line tracking southeastward.
Additionally, given the residual outflow boundary extending from far
north-central Illinois into central Indiana, a low-probability
tornado risk exists with any storms that can interact with this
boundary.

The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 25 miles west northwest
of Moline IL to 55 miles east of Marseilles IL. 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 548...WW 549...

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
27025.

...Mosier

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 12h ago

SPC Severe Thunderstorm Watch 550 Status Reports ⛈️WFO...DVN🌪️ Additional Details Here.

STATUS REPORT ON WW 550

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NW BMI TO
20 WNW MMO TO 40 ENE RFD.

..KERR..08/10/26

ATTN...WFO...DVN...LOT...ILX...

STATUS REPORT FOR WS 550

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

ILC031-037-043-053-063-075-089-091-093-097-099-105-113-197-
100640-

IL
. ILLINOIS COUNTIES INCLUDED ARE

COOK DE KALB DUPAGE
FORD GRUNDY IROQUOIS
KANE KANKAKEE KENDALL
LAKE LA SALLE LIVINGSTON
MCLEAN WILL

INC007-073-089-111-127-100640-

IN
. INDIANA COUNTIES INCLUDED ARE

BENTON JASPER LAKE
NEWTON PORTER

LMZ740-741-742-743-744-745-100640-

CW

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 12h ago

SPC Severe Thunderstorm Watch 551 Status Reports ⛈️WFO...GLD🌪️ Additional Details Here.

STATUS REPORT ON WW 551

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 N ITR TO
35 ESE MCK.

..KERR..08/10/26

ATTN...WFO...GLD...

STATUS REPORT FOR WS 551

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

COC063-100640-

CO
. COLORADO COUNTIES INCLUDED ARE

KIT CARSON

KSC023-039-065-137-153-179-181-193-100640-

KS
. KANSAS COUNTIES INCLUDED ARE

CHEYENNE DECATUR GRAHAM
NORTON RAWLINS SHERIDAN
SHERMAN THOMAS

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.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 12h ago

SPC Severe Thunderstorm Watch 550 ⛈️ Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY🌪️ Additional Details Here.

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 12h ago

SPC Severe Thunderstorm Watch 551 ⛈️ Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible SUMMARY🌪️ Additional Details Here.

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 551
NWS Storm Prediction Center Norman OK
1005 PM MDT Sun Aug 9 2026

The NWS Storm Prediction Center has issued a

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

* Effective this Sunday night and Monday morning from 1005 PM
until 300 AM MDT.

* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible

SUMMARY...A line of thunderstorms capable of producing strong to
severe gusts is forecast to continue progressing southeastward,
moving from far southwest Nebraska/far northeast Colorado through
northwest Kansas tonight.

The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 50 miles west southwest
of Hill City KS to 40 miles west northwest of Mccook NE. 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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 549...WW 550...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
33035.

...Mosier

SPC Tornado/Severe Thunderstorm Alerts (UNOFFICIAL)@spc-storms.nws-bot.us · 14h ago

SPC Severe Thunderstorm Watch 549 Status Reports ⛈️WFO...BOU🌪️ Additional Details Here.

STATUS REPORT ON WW 549

SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SW IML TO
25 NW IML TO 30 W EAR.

FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1889

..MOORE..08/10/26

ATTN...WFO...BOU...LBF...CYS...

STATUS REPORT FOR WS 549

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS

NEC029-063-085-100540-

NE
. NEBRASKA COUNTIES INCLUDED ARE

CHASE FRONTIER HAYES

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.