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 384
NWS Storm Prediction Center Norman OK
1035 AM CDT Sun Jul 19 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Illinois
Northern Indiana
Southwest Lower Michigan
Northwest Ohio
Lake Michigan
* Effective this Sunday morning and evening from 1035 AM until
600 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A fast-moving complex of storms over northern Illinois
will approach the Chicago area, while other storms develop this
afternoon along a boundary across northern Indiana. Damaging wind
gusts are the primary concern with these storms.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 80 miles west of
Valparaiso IN to 70 miles east northeast of Fort Wayne IN. 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.
&&
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
27040.
...Hart
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 384
NWS Storm Prediction Center Norman OK
1035 AM CDT Sun Jul 19 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Illinois
Northern Indiana
Southwest Lower Michigan
Northwest Ohio
Lake Michigan
* Effective this Sunday morning and evening from 1035 AM until
600 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A fast-moving complex of storms over northern Illinois
will approach the Chicago area, while other storms develop this
afternoon along a boundary across northern Indiana. Damaging wind
gusts are the primary concern with these storms.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 80 miles west of
Valparaiso IN to 70 miles east northeast of Fort Wayne IN. 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.
&&
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
27040.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 384 SEVERE TSTM IL IN MI OH LM 191535Z - 192300Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
80W VPZ/VALPARAISO IN/ - 70ENE FWA/FORT WAYNE IN/
..AVIATION COORDS.. 45NM N/S /12WSW JOT - 57SSW DXO/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27040.
LAT...LON 42168854 42088393 40648393 40728854
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 384 Status Report Messages:
STATUS REPORT #4 ON WW 384
VALID 191935Z - 192040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1278
..MOORE..07/19/20
ATTN...WFO...LOT...IWX...
&&
STATUS REPORT FOR WS 384
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC001-075-192040-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS JAY
$$
MIC059-192040-
MI
. MICHIGAN COUNTIES INCLUDED ARE
HILLSDALE
$$
OHC003-039-051-069-125-137-161-171-192040-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN DEFIANCE FULTON
HENRY PAULDING PUTNAM
VAN WERT WILLIAMS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 384
VALID 191845Z - 191940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NW MIE TO
35 NW FWA TO 45 N FWA TO 15 ESE AZO.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1276
..MOORE..07/19/20
ATTN...WFO...LOT...IWX...
&&
STATUS REPORT FOR WS 384
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC001-003-009-033-053-069-075-113-151-169-179-183-191940-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS ALLEN BLACKFORD
DE KALB GRANT HUNTINGTON
JAY NOBLE STEUBEN
WABASH WELLS WHITLEY
$$
MIC059-191940-
MI
. MICHIGAN COUNTIES INCLUDED ARE
HILLSDALE
$$
OHC003-039-051-069-125-137-161-171-191940-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN DEFIANCE FULTON
HENRY PAULDING PUTNAM
VAN WERT WILLIAMS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 384
VALID 191735Z - 191840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 N BMI TO
45 NNW DNV TO 35 N DNV TO 35 NNW LAF TO 10 W VPZ TO 40 WNW BEH.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1276
..MOORE..07/19/20
ATTN...WFO...LOT...IWX...
&&
STATUS REPORT FOR WS 384
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC053-075-191840-
IL
. ILLINOIS COUNTIES INCLUDED ARE
FORD IROQUOIS
$$
INC001-003-007-009-017-033-039-049-053-069-073-075-085-087-091-
099-103-113-127-131-141-149-151-169-179-181-183-191840-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS ALLEN BENTON
BLACKFORD CASS DE KALB
ELKHART FULTON GRANT
HUNTINGTON JASPER JAY
KOSCIUSKO LAGRANGE LA PORTE
MARSHALL MIAMI NOBLE
PORTER PULASKI ST. JOSEPH
STARKE STEUBEN WABASH
WELLS WHITE WHITLEY
$$
MIC021-023-027-059-149-191840-
MI
. MICHIGAN COUNTIES INCLUDED ARE
BERRIEN BRANCH CASS
HILLSDALE ST. JOSEPH
$$
OHC003-039-051-069-125-137-161-171-191840-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN DEFIANCE FULTON
HENRY PAULDING PUTNAM
VAN WERT WILLIAMS
$$
LMZ043-046-080-745-191840-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
NEW BUFFALO MI TO ST JOSEPH MI
MICHIGAN CITY IN TO NEW BUFFALO MI
LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO
MID-LINE OF LAKE.
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 #1 ON WW 384
VALID 191635Z - 191740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNW BMI
TO 40 SSE MMO TO 35 ESE MMO TO 25 N MMO.
..MOORE..07/19/20
ATTN...WFO...LOT...IWX...
&&
STATUS REPORT FOR WS 384
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC031-043-053-075-091-093-197-191740-
IL
. ILLINOIS COUNTIES INCLUDED ARE
COOK DUPAGE FORD
IROQUOIS KANKAKEE KENDALL
WILL
$$
INC001-003-007-009-017-033-039-049-053-069-073-075-085-087-089-
091-099-103-111-113-127-131-141-149-151-169-179-181-183-
191740-
IN
. INDIANA COUNTIES INCLUDED ARE
ADAMS ALLEN BENTON
BLACKFORD CASS DE KALB
ELKHART FULTON GRANT
HUNTINGTON JASPER JAY
KOSCIUSKO LAGRANGE LAKE
LA PORTE MARSHALL MIAMI
NEWTON NOBLE PORTER
PULASKI ST. JOSEPH STARKE
STEUBEN WABASH WELLS
WHITE WHITLEY
$$
MIC021-023-027-059-149-191740-
MI
. MICHIGAN COUNTIES INCLUDED ARE
BERRIEN BRANCH CASS
HILLSDALE ST. JOSEPH
$$
OHC003-039-051-069-125-137-161-171-191740-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN DEFIANCE FULTON
HENRY PAULDING PUTNAM
VAN WERT WILLIAMS
$$
LMZ043-046-080-741-742-743-744-745-779-191740-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
NEW BUFFALO MI TO ST JOSEPH MI
MICHIGAN CITY IN TO NEW BUFFALO MI
LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO
MID-LINE OF LAKE.
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
LAKE MICHIGAN FROM WILMETTE HARBOR TO MICHIGAN CITY IN 5NM
OFFSHORE TO MID LAKE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
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
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
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
