Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 63
NWS Storm Prediction Center Norman OK
355 PM CDT Wed May 2 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Iowa
Northern Illinois
Far northeast Missouri
Lake Michigan
* Effective this Wednesday afternoon and evening from 355 PM
until 1100 PM CDT.
* Primary threats include...
Isolated damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Isolated severe storms may develop this evening along and
south of a slow-moving cold front. Hail and wind are the primary
hazards.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 50 miles south
southwest of Cedar Rapids IA to 60 miles east northeast of
Marseilles IL. 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 61...WW 62...
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 450. Mean storm motion vector
26030.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 63 SEVERE TSTM IA IL MO LM 022055Z - 030400Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
50SSW CID/CEDAR RAPIDS IA/ - 60ENE MMO/MARSEILLES IL/
..AVIATION COORDS.. 50NM N/S /28SW IOW - 21SE ORD/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 26030.
LAT...LON 42089208 42568761 40838761 40349208
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 63 Status Report Messages:
STATUS REPORT #6 ON WW 63
VALID 030230Z - 030340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM AND 20 NNE
OTM TO 35 SSE CID TO 20 NNW MLI TO 35 WSW RFD TO 10 SE RFD TO 30
SW RAC TO 15 SE RAC TO 45 N DNV TO 20 NNE BMI TO 40 N PIA TO 25
SSE MLI TO 45 ENE UIN.
..LEITMAN..05/03/18
ATTN...WFO...DVN...LOT...ILX...
&&
STATUS REPORT FOR WS 63
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC011-031-037-043-053-063-067-071-073-075-089-091-093-097-099-
103-105-109-111-131-141-155-161-187-195-197-030340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BUREAU COOK DE KALB
DUPAGE FORD GRUNDY
HANCOCK HENDERSON HENRY
IROQUOIS KANE KANKAKEE
KENDALL LAKE LA SALLE
LEE LIVINGSTON MCDONOUGH
MCHENRY MERCER OGLE
PUTNAM ROCK ISLAND WARREN
WHITESIDE WILL
$$
INC007-073-089-111-127-030340-
IN
. INDIANA COUNTIES INCLUDED ARE
BENTON JASPER LAKE
NEWTON PORTER
$$
IAC057-087-101-107-111-115-139-163-177-183-030340-
IA
. IOWA COUNTIES INCLUDED ARE
DES MOINES HENRY JEFFERSON
KEOKUK LEE LOUISA
MUSCATINE SCOTT VAN BUREN
WASHINGTON
$$
MOC045-199-030340-
MO
. MISSOURI COUNTIES INCLUDED ARE
CLARK SCOTLAND
$$
LMZ740-741-742-743-744-745-030340-
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 #5 ON WW 63
VALID 030130Z - 030240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 N OTM TO
15 SE JVL.
..BENTLEY..05/03/18
ATTN...WFO...DVN...LOT...ILX...
&&
STATUS REPORT FOR WS 63
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-053-063-067-071-073-075-089-091-093-
097-099-103-105-109-111-131-141-155-161-187-195-197-201-
030240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
FORD GRUNDY HANCOCK
HENDERSON HENRY IROQUOIS
KANE KANKAKEE KENDALL
LAKE LA SALLE LEE
LIVINGSTON MCDONOUGH MCHENRY
MERCER OGLE PUTNAM
ROCK ISLAND WARREN WHITESIDE
WILL WINNEBAGO
$$
INC007-073-089-111-127-030240-
IN
. INDIANA COUNTIES INCLUDED ARE
BENTON JASPER LAKE
NEWTON PORTER
$$
IAC031-045-057-087-101-103-107-111-115-139-163-177-183-030240-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY JEFFERSON JOHNSON
KEOKUK LEE LOUISA
MUSCATINE SCOTT VAN BUREN
WASHINGTON
$$
MOC045-199-030240-
MO
. MISSOURI COUNTIES INCLUDED ARE
CLARK SCOTLAND
$$
LMZ740-741-742-743-744-745-030240-
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 #4 ON WW 63
VALID 030035Z - 030140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 N OTM TO
15 NW RFD.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 324.
..BENTLEY..05/03/18
ATTN...WFO...DVN...LOT...ILX...
&&
STATUS REPORT FOR WS 63
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-053-057-063-067-071-073-075-085-089-
091-093-095-097-099-103-105-109-111-113-123-131-141-143-155-161-
175-177-179-187-195-197-201-203-030140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
FORD FULTON GRUNDY
HANCOCK HENDERSON HENRY
IROQUOIS JO DAVIESS KANE
KANKAKEE KENDALL KNOX
LAKE LA SALLE LEE
LIVINGSTON MCDONOUGH MCHENRY
MCLEAN MARSHALL MERCER
OGLE PEORIA PUTNAM
ROCK ISLAND STARK STEPHENSON
TAZEWELL WARREN WHITESIDE
WILL WINNEBAGO WOODFORD
$$
INC007-073-089-111-127-030140-
IN
. INDIANA COUNTIES INCLUDED ARE
BENTON JASPER LAKE
NEWTON PORTER
$$
IAC031-045-057-087-095-097-101-103-105-107-111-115-139-163-177-
183-030140-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY IOWA JACKSON
JEFFERSON JOHNSON JONES
KEOKUK LEE LOUISA
MUSCATINE SCOTT VAN BUREN
WASHINGTON
$$
MOC045-199-030140-
MO
. MISSOURI COUNTIES INCLUDED ARE
CLARK SCOTLAND
$$
LMZ740-741-742-743-744-745-030140-
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 #3 ON WW 63
VALID 022330Z - 030040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 N OTM TO
30 WNW RFD.
..LEITMAN..05/02/18
ATTN...WFO...DVN...LOT...ILX...
&&
STATUS REPORT FOR WS 63
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-053-057-063-067-071-073-075-089-091-
093-095-097-099-103-105-109-111-113-123-131-141-143-155-161-175-
177-179-187-195-197-201-203-030040-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
FORD FULTON GRUNDY
HANCOCK HENDERSON HENRY
IROQUOIS KANE KANKAKEE
KENDALL KNOX LAKE
LA SALLE LEE LIVINGSTON
MCDONOUGH MCHENRY MCLEAN
MARSHALL MERCER OGLE
PEORIA PUTNAM ROCK ISLAND
STARK STEPHENSON TAZEWELL
WARREN WHITESIDE WILL
WINNEBAGO WOODFORD
$$
INC007-073-089-111-127-030040-
IN
. INDIANA COUNTIES INCLUDED ARE
BENTON JASPER LAKE
NEWTON PORTER
$$
IAC031-045-057-087-095-097-101-103-107-111-115-139-163-177-183-
030040-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY IOWA JACKSON
JEFFERSON JOHNSON KEOKUK
LEE LOUISA MUSCATINE
SCOTT VAN BUREN WASHINGTON
$$
MOC045-199-030040-
MO
. MISSOURI COUNTIES INCLUDED ARE
CLARK SCOTLAND
$$
LMZ740-741-742-743-744-745-030040-
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 63
VALID 022235Z - 022340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BENTLEY..05/02/18
ATTN...WFO...DVN...LOT...ILX...
&&
STATUS REPORT FOR WS 63
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-053-057-063-067-071-073-075-085-089-
091-093-095-097-099-103-105-109-111-113-123-131-141-143-155-161-
175-177-179-187-195-197-201-203-022340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
FORD FULTON GRUNDY
HANCOCK HENDERSON HENRY
IROQUOIS JO DAVIESS KANE
KANKAKEE KENDALL KNOX
LAKE LA SALLE LEE
LIVINGSTON MCDONOUGH MCHENRY
MCLEAN MARSHALL MERCER
OGLE PEORIA PUTNAM
ROCK ISLAND STARK STEPHENSON
TAZEWELL WARREN WHITESIDE
WILL WINNEBAGO WOODFORD
$$
IAC031-045-057-087-095-097-101-103-105-107-111-115-139-163-177-
183-022340-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY IOWA JACKSON
JEFFERSON JOHNSON JONES
KEOKUK LEE LOUISA
MUSCATINE SCOTT VAN BUREN
WASHINGTON
$$
MOC045-199-022340-
MO
. MISSOURI COUNTIES INCLUDED ARE
CLARK SCOTLAND
$$
LMZ740-741-742-022340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
$$
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.
$$
STATUS REPORT #1 ON WW 63
VALID 022140Z - 022240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BENTLEY..05/02/18
ATTN...WFO...DVN...LOT...ILX...
&&
STATUS REPORT FOR WS 63
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC007-011-015-031-037-043-053-057-063-067-071-073-075-085-089-
091-093-095-097-099-103-105-109-111-113-123-131-141-143-155-161-
175-177-179-187-195-197-201-203-022240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOONE BUREAU CARROLL
COOK DE KALB DUPAGE
FORD FULTON GRUNDY
HANCOCK HENDERSON HENRY
IROQUOIS JO DAVIESS KANE
KANKAKEE KENDALL KNOX
LAKE LA SALLE LEE
LIVINGSTON MCDONOUGH MCHENRY
MCLEAN MARSHALL MERCER
OGLE PEORIA PUTNAM
ROCK ISLAND STARK STEPHENSON
TAZEWELL WARREN WHITESIDE
WILL WINNEBAGO WOODFORD
$$
IAC031-045-057-087-095-097-101-103-105-107-111-115-139-163-177-
183-022240-
IA
. IOWA COUNTIES INCLUDED ARE
CEDAR CLINTON DES MOINES
HENRY IOWA JACKSON
JEFFERSON JOHNSON JONES
KEOKUK LEE LOUISA
MUSCATINE SCOTT VAN BUREN
WASHINGTON
$$
MOC045-199-022240-
MO
. MISSOURI COUNTIES INCLUDED ARE
CLARK SCOTLAND
$$
LMZ740-741-742-022240-
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 (10%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
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
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
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% (F2-F5 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.