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 294
NWS Storm Prediction Center Norman OK
135 PM CDT Mon Jun 22 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Northeast Illinois
Northwest Indiana
Eastern Missouri
Lake Michigan
* Effective this Monday afternoon and evening from 135 PM until
900 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Storms are expected to intensify within multiple pre-cold
frontal corridors across the region. While deep-layer winds are not
overly strong, a moist/unstable environment will support multicells
capable of wind damage and possibly some hail through the afternoon
and early evening.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 70 miles west southwest
of Springfield IL to 70 miles north northeast of Danville IL. 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 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
25020.
...Guyer
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 294
NWS Storm Prediction Center Norman OK
135 PM CDT Mon Jun 22 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Northeast Illinois
Northwest Indiana
Eastern Missouri
Lake Michigan
* Effective this Monday afternoon and evening from 135 PM until
900 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Storms are expected to intensify within multiple pre-cold
frontal corridors across the region. While deep-layer winds are not
overly strong, a moist/unstable environment will support multicells
capable of wind damage and possibly some hail through the afternoon
and early evening.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 70 miles west southwest
of Springfield IL to 70 miles north northeast of Danville IL. 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 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
25020.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 294 SEVERE TSTM IL IN MO LM 221835Z - 230200Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
70WSW SPI/SPRINGFIELD IL/ - 70NNE DNV/DANVILLE IL/
..AVIATION COORDS.. 50NM N/S /30SE UIN - 35N BVT/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25020.
LAT...LON 40329089 42008709 40278709 38599089
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 294 Status Report Messages:
STATUS REPORT #3 ON WW 294
VALID 230050Z - 230200Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 WNW STL
TO 5 ESE ALN TO 10 ESE ALN.
WW 294 WILL BE ALLOWED TO EXPIRE AT 230200Z.
..SQUITIERI..06/23/20
ATTN...WFO...LSX...ILX...LOT...DVN...
&&
STATUS REPORT FOR WS 294
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC127-230200-
IN
. INDIANA COUNTIES INCLUDED ARE
PORTER
$$
MOC071-113-183-189-219-510-230200-
MO
. MISSOURI COUNTIES INCLUDED ARE
FRANKLIN LINCOLN ST. CHARLES
ST. LOUIS WARREN
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
LMZ745-230200-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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 294
VALID 230000Z - 230140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 NW STL TO
40 NE ALN TO 5 ENE CMI TO 40 N DNV TO 20 N PIA.
..SQUITIERI..06/22/20
ATTN...WFO...LSX...ILX...LOT...DVN...
&&
STATUS REPORT FOR WS 294
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-019-029-031-041-045-051-063-075-091-093-099-105-183-197-
230140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND CHAMPAIGN COLES
COOK DOUGLAS EDGAR
FAYETTE GRUNDY IROQUOIS
KANKAKEE KENDALL LA SALLE
LIVINGSTON VERMILION WILL
$$
INC007-073-089-111-127-230140-
IN
. INDIANA COUNTIES INCLUDED ARE
BENTON JASPER LAKE
NEWTON PORTER
$$
MOC071-113-183-189-219-510-230140-
MO
. MISSOURI COUNTIES INCLUDED ARE
FRANKLIN LINCOLN ST. CHARLES
ST. LOUIS WARREN
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
LMZ740-741-742-743-744-745-230140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
WINTHROP HARBOR TO WILMETTE HARBOR IL
WILMETTE HARBOR TO NORTHERLY ISLAND IL
NORTHERLY ISLAND TO CALUMET HARBOR IL
CALUMET HARBOR IL TO GARY IN
GARY TO BURNS HARBOR IN
BURNS HARBOR TO MICHIGAN CITY IN
$$
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.
$$
STATUS REPORT #1 ON WW 294
VALID 222250Z - 222340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SQUITIERI..06/22/20
ATTN...WFO...LSX...ILX...LOT...DVN...
&&
STATUS REPORT FOR WS 294
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-013-017-019-021-029-031-039-041-045-051-053-057-061-063-
075-083-091-093-099-105-107-113-115-117-119-123-125-129-135-137-
139-143-147-149-155-167-171-173-179-183-197-203-222340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND CALHOUN CASS
CHAMPAIGN CHRISTIAN COLES
COOK DE WITT DOUGLAS
EDGAR FAYETTE FORD
FULTON GREENE GRUNDY
IROQUOIS JERSEY KANKAKEE
KENDALL LA SALLE LIVINGSTON
LOGAN MCLEAN MACON
MACOUPIN MADISON MARSHALL
MASON MENARD MONTGOMERY
MORGAN MOULTRIE PEORIA
PIATT PIKE PUTNAM
SANGAMON SCOTT SHELBY
TAZEWELL VERMILION WILL
WOODFORD
$$
INC007-073-089-111-127-222340-
IN
. INDIANA COUNTIES INCLUDED ARE
BENTON JASPER LAKE
NEWTON PORTER
$$
MOC113-183-189-510-222340-
MO
. MISSOURI COUNTIES INCLUDED ARE
LINCOLN ST. CHARLES ST. LOUIS
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
LMZ740-741-742-222340-
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 (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (<5%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
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
