Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 35
NWS Storm Prediction Center Norman OK
655 PM CDT Fri Mar 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Iowa
Northern Illinois
Far Northeast Missouri
Lake Michigan
* Effective this Friday night and Saturday morning from 655 PM
until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Ongoing line of showers and thunderstorms is expected to
progress quickly northeastward/eastward over the next several hours.
Very strong low- to mid-level wind fields exist, supporting the
potential for strong gust with any deeper, more sustained storms.
Some isolated hail is possible as well. Dry low-levels are expected
to keep the tornado potential very low, although still none zero
given the strongly sheared environment.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 25 miles southwest of
Cedar Rapids IA to 45 miles east northeast of Marseilles IL. 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 30...WW 31...WW 32...WW
33...WW 34...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24035.
...Mosier
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 35
NWS Storm Prediction Center Norman OK
655 PM CDT Fri Mar 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Iowa
Northern Illinois
Far Northeast Missouri
Lake Michigan
* Effective this Friday night and Saturday morning from 655 PM
until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...Ongoing line of showers and thunderstorms is expected to
progress quickly northeastward/eastward over the next several hours.
Very strong low- to mid-level wind fields exist, supporting the
potential for strong gust with any deeper, more sustained storms.
Some isolated hail is possible as well. Dry low-levels are expected
to keep the tornado potential very low, although still none zero
given the strongly sheared environment.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 25 miles southwest of
Cedar Rapids IA to 45 miles east northeast of Marseilles IL. 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 30...WW 31...WW 32...WW
33...WW 34...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24035.
...Mosier
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 35 SEVERE TSTM IA IL MO LM 142355Z - 150700Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
25SW CID/CEDAR RAPIDS IA/ - 45ENE MMO/MARSEILLES IL/
..AVIATION COORDS.. 45NM N/S /21WNW IOW - 20ENE JOT/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 42359206 42348788 40898788 40909206
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 35 Status Report Messages:
STATUS REPORT #3 ON WW 35
VALID 150540Z - 150640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSE MMO
TO 20 NNE MMO TO 20 SE JVL.
..GOSS..03/15/25
ATTN...WFO...DVN...LOT...
&&
STATUS REPORT FOR WS 35
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC031-043-063-089-091-093-097-111-197-150640-
IL
. ILLINOIS COUNTIES INCLUDED ARE
COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE MCHENRY WILL
$$
INC073-089-111-127-150640-
IN
. INDIANA COUNTIES INCLUDED ARE
JASPER LAKE NEWTON
PORTER
$$
LMZ740-741-742-743-744-745-150640-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
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 #2 ON WW 35
VALID 150255Z - 150340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ENE BRL
TO 30 W MLI TO 35 N CID.
..GOSS..03/15/25
ATTN...WFO...DVN...LOT...
&&
STATUS REPORT FOR WS 35
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-063-073-085-089-091-093-097-099-103-
109-111-131-141-155-161-177-187-195-197-201-150340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
GRUNDY HENRY JO DAVIESS
KANE KANKAKEE KENDALL
LAKE LA SALLE LEE
MCDONOUGH MCHENRY MERCER
OGLE PUTNAM ROCK ISLAND
STEPHENSON WARREN WHITESIDE
WILL WINNEBAGO
$$
IAC019-031-045-055-061-097-105-139-163-150340-
IA
. IOWA COUNTIES INCLUDED ARE
BUCHANAN CEDAR CLINTON
DELAWARE DUBUQUE JACKSON
JONES MUSCATINE SCOTT
$$
LMZ740-741-742-150340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 35
VALID 150130Z - 150240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GOSS..03/15/25
ATTN...WFO...DVN...LOT...
&&
STATUS REPORT FOR WS 35
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-063-067-071-073-085-089-091-093-097-
099-103-109-111-131-141-155-161-177-187-195-197-201-150240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
GRUNDY HANCOCK HENDERSON
HENRY JO DAVIESS KANE
KANKAKEE KENDALL LAKE
LA SALLE LEE MCDONOUGH
MCHENRY MERCER OGLE
PUTNAM ROCK ISLAND STEPHENSON
WARREN WHITESIDE WILL
WINNEBAGO
$$
IAC011-019-031-045-055-057-061-087-095-097-101-103-105-107-111-
113-115-139-163-177-183-150240-
IA
. IOWA COUNTIES INCLUDED ARE
BENTON BUCHANAN CEDAR
CLINTON DELAWARE DES MOINES
DUBUQUE HENRY IOWA
JACKSON JEFFERSON JOHNSON
JONES KEOKUK LEE
LINN LOUISA MUSCATINE
SCOTT VAN BUREN WASHINGTON
$$
MOC045-199-150240-
MO
. MISSOURI COUNTIES INCLUDED ARE
CLARK SCOTLAND
$$
LMZ740-741-742-150240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
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
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
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 (90%)
|
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
