Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 534
NWS Storm Prediction Center Norman OK
555 PM CDT Sun Jul 14 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern and Eastern Iowa
Northern Illinois
Far Northwest Indiana
Southern Wisconsin
Lake Michigan
* Effective this Sunday afternoon and Monday morning from 555 PM
until 100 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated very large hail events to 2 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms are expected to continue increasing in
coverage and intensity this evening. Isolated large hail generally
1-1.75 inches in diameter may occur with the initially more cellular
activity. With time, a bowing cluster of thunderstorms should pose a
greater threat for severe/damaging winds up to around 60-70 mph. A
landspout tornado or two also appears possible.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles south
southwest of Mason City IA to 55 miles south of Racine 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 533...
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
28030.
...Gleason
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 534
NWS Storm Prediction Center Norman OK
555 PM CDT Sun Jul 14 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern and Eastern Iowa
Northern Illinois
Far Northwest Indiana
Southern Wisconsin
Lake Michigan
* Effective this Sunday afternoon and Monday morning from 555 PM
until 100 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated very large hail events to 2 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms are expected to continue increasing in
coverage and intensity this evening. Isolated large hail generally
1-1.75 inches in diameter may occur with the initially more cellular
activity. With time, a bowing cluster of thunderstorms should pose a
greater threat for severe/damaging winds up to around 60-70 mph. A
landspout tornado or two also appears possible.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles south
southwest of Mason City IA to 55 miles south of Racine 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 533...
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
28030.
...Gleason
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 534 SEVERE TSTM IA IL IN WI LM 142255Z - 150600Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
45SSW MCW/MASON CITY IA/ - 55S RAC/RACINE WI/
..AVIATION COORDS.. 50NM N/S /28E FOD - 4ESE ORD/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 28030.
LAT...LON 43429367 42838781 41108781 41689367
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 534 Status Report Messages:
STATUS REPORT #5 ON WW 534
VALID 150430Z - 150540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 W MLI TO
35 SSW RFD TO 45 WNW VPZ.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1624.
..GRAMS..07/15/24
ATTN...WFO...DVN...DMX...ARX...LOT...ILX...MKX...
&&
STATUS REPORT FOR WS 534
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-053-063-073-075-091-093-095-099-105-123-143-155-175-197-
203-150540-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU FORD GRUNDY
HENRY IROQUOIS KANKAKEE
KENDALL KNOX LA SALLE
LIVINGSTON MARSHALL PEORIA
PUTNAM STARK WILL
WOODFORD
$$
INC073-089-111-127-150540-
IN
. INDIANA COUNTIES INCLUDED ARE
JASPER LAKE NEWTON
PORTER
$$
LMZ743-744-745-150540-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
BURNS HARBOR TO MICHIGAN CITY IN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 534
VALID 150335Z - 150440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 W MLI TO
40 ESE DBQ TO 35 SE RFD TO 15 WSW MKE.
..GRAMS..07/15/24
ATTN...WFO...DVN...DMX...ARX...LOT...ILX...MKX...
&&
STATUS REPORT FOR WS 534
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-015-031-037-043-063-073-089-091-093-097-099-103-105-123-
141-155-161-175-195-197-150440-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU CARROLL COOK
DE KALB DUPAGE GRUNDY
HENRY KANE KANKAKEE
KENDALL LAKE LA SALLE
LEE LIVINGSTON MARSHALL
OGLE PUTNAM ROCK ISLAND
STARK WHITESIDE WILL
$$
INC089-150440-
IN
. INDIANA COUNTIES INCLUDED ARE
LAKE
$$
IAC045-163-150440-
IA
. IOWA COUNTIES INCLUDED ARE
CLINTON SCOTT
$$
WIC059-101-150440-
WI
. WISCONSIN COUNTIES INCLUDED ARE
KENOSHA RACINE
$$
LMZ645-646-740-741-742-743-744-150440-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 534
VALID 150300Z - 150440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SE CID TO
35 SSW DBQ TO 5 ESE DBQ TO 15 SW RFD TO 20 E RFD TO 30 NE JVL.
..SPC..07/15/24
ATTN...WFO...DVN...DMX...ARX...LOT...ILX...MKX...
&&
STATUS REPORT FOR WS 534
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-015-031-037-043-063-073-089-091-093-097-099-103-105-111-
123-141-155-161-175-195-197-150440-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU CARROLL COOK
DE KALB DUPAGE GRUNDY
HENRY KANE KANKAKEE
KENDALL LAKE LA SALLE
LEE LIVINGSTON MCHENRY
MARSHALL OGLE PUTNAM
ROCK ISLAND STARK WHITESIDE
WILL
$$
INC089-150440-
IN
. INDIANA COUNTIES INCLUDED ARE
LAKE
$$
IAC031-045-097-139-163-150440-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON JACKSON
MUSCATINE SCOTT
$$
WIC059-079-101-127-133-150440-
WI
. WISCONSIN COUNTIES INCLUDED ARE
KENOSHA MILWAUKEE RACINE
WALWORTH WAUKESHA
$$
LMZ645-646-740-741-742-743-744-150440-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 534
VALID 150140Z - 150240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NE OXV TO
20 NNW DBQ TO 20 SE LNR.
..SPC..07/15/24
ATTN...WFO...DVN...DMX...ARX...LOT...ILX...MKX...
&&
STATUS REPORT FOR WS 534
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-063-073-085-089-091-093-097-099-103-
105-111-123-141-155-161-175-177-195-197-201-150240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
GRUNDY HENRY JO DAVIESS
KANE KANKAKEE KENDALL
LAKE LA SALLE LEE
LIVINGSTON MCHENRY MARSHALL
OGLE PUTNAM ROCK ISLAND
STARK STEPHENSON WHITESIDE
WILL WINNEBAGO
$$
INC089-150240-
IN
. INDIANA COUNTIES INCLUDED ARE
LAKE
$$
IAC031-045-061-095-097-103-105-113-139-157-163-150240-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DUBUQUE
IOWA JACKSON JOHNSON
JONES LINN MUSCATINE
POWESHIEK SCOTT
$$
WIC025-027-043-045-049-055-059-065-079-101-105-127-133-150240-
WI
. WISCONSIN COUNTIES INCLUDED ARE
DANE DODGE GRANT
GREEN IOWA JEFFERSON
KENOSHA LAFAYETTE MILWAUKEE
RACINE ROCK WALWORTH
WAUKESHA
$$
LMZ645-646-740-741-742-743-744-150240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 534
VALID 150055Z - 150140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SW MCW TO
45 ENE ALO TO 25 NNW DBQ TO 20 SE OSH.
..LYONS..07/15/24
ATTN...WFO...DVN...DMX...ARX...LOT...ILX...MKX...
&&
STATUS REPORT FOR WS 534
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-063-073-085-089-091-093-097-099-103-
105-111-123-141-155-161-175-177-195-197-201-150140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
GRUNDY HENRY JO DAVIESS
KANE KANKAKEE KENDALL
LAKE LA SALLE LEE
LIVINGSTON MCHENRY MARSHALL
OGLE PUTNAM ROCK ISLAND
STARK STEPHENSON WHITESIDE
WILL WINNEBAGO
$$
INC089-150140-
IN
. INDIANA COUNTIES INCLUDED ARE
LAKE
$$
IAC011-013-017-019-023-031-045-055-061-069-075-083-095-097-103-
105-113-127-139-157-163-171-197-150140-
IA
. IOWA COUNTIES INCLUDED ARE
BENTON BLACK HAWK BREMER
BUCHANAN BUTLER CEDAR
CLINTON DELAWARE DUBUQUE
FRANKLIN GRUNDY HARDIN
IOWA JACKSON JOHNSON
JONES LINN MARSHALL
MUSCATINE POWESHIEK SCOTT
TAMA WRIGHT
$$
WIC025-027-043-045-049-055-059-065-079-101-105-127-133-150140-
WI
. WISCONSIN COUNTIES INCLUDED ARE
DANE DODGE GRANT
GREEN IOWA JEFFERSON
KENOSHA LAFAYETTE MILWAUKEE
RACINE ROCK WALWORTH
WAUKESHA
$$
LMZ645-646-740-741-742-743-744-150140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
NORTH POINT LIGHT TO WIND POINT WI
WIND POINT WI TO WINTHROP HARBOR IL
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (10%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.
weather.gov 
@NWSSPC
