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
Tornado Watch Number 373
NWS Storm Prediction Center Norman OK
210 PM CDT Wed Jul 15 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern Illinois
Southwest and central Missouri
* Effective this Wednesday afternoon and evening from 210 PM
until 900 PM CDT.
* Primary threats include...
A few tornadoes possible
Scattered damaging wind gusts to 70 mph likely
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...An remnant MCV and its related strong deep-layer/low-level
winds will support supercell thunderstorms as well as organizing
linear bowing storms through mid/late afternoon. A few tornadoes are
possible aside from more prevalent damaging thunderstorm winds.
Severe hail may also occur.
The tornado watch area is approximately along and 70 statute miles
north and south of a line from 25 miles northwest of Fort Leonard
Wood MO to 25 miles northeast of Decatur IL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
AVIATION...Tornadoes and 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 550. Mean
storm motion vector 26030.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 373 TORNADO IL MO 151910Z - 160200Z
AXIS..70 STATUTE MILES NORTH AND SOUTH OF LINE..
25NW TBN/FORT LEONARD WOOD MO/ - 25NE DEC/DECATUR IL/
..AVIATION COORDS.. 60NM N/S /50SSW COU - 26NE AXC/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 26030.
LAT...LON 39029245 41108854 39078854 36999245
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 373 Status Report Messages:
STATUS REPORT #4 ON WW 373
VALID 160130Z - 160200Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE BLV TO
15 WSW MTO.
WW 373 WILL BE ALLOWED TO EXPIRE AT 160200Z.
..LYONS..07/16/20
ATTN...WFO...LSX...ILX...SGF...
&&
STATUS REPORT FOR WT 373
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC027-049-121-157-189-160200-
IL
. ILLINOIS COUNTIES INCLUDED ARE
CLINTON EFFINGHAM MARION
RANDOLPH WASHINGTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 373
VALID 160020Z - 160140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E FAM TO
35 NW SLO TO 20 NW DEC TO 30 SSW MMO.
..LYONS..07/16/20
ATTN...WFO...LSX...ILX...SGF...
&&
STATUS REPORT FOR WT 373
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-021-027-039-049-051-113-115-121-139-147-157-173-189-
160140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND CHRISTIAN CLINTON
DE WITT EFFINGHAM FAYETTE
MCLEAN MACON MARION
MOULTRIE PIATT RANDOLPH
SHELBY WASHINGTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 373
VALID 152315Z - 160040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ESE FAM
TO 15 NW ALN TO 30 SSW PIA TO 35 SW MMO.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1236
..LYONS..07/15/20
ATTN...WFO...LSX...ILX...SGF...
&&
STATUS REPORT FOR WT 373
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-021-027-039-049-051-107-113-115-117-119-121-125-129-133-
135-139-147-157-163-167-173-179-189-203-160040-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND CHRISTIAN CLINTON
DE WITT EFFINGHAM FAYETTE
LOGAN MCLEAN MACON
MACOUPIN MADISON MARION
MASON MENARD MONROE
MONTGOMERY MOULTRIE PIATT
RANDOLPH ST. CLAIR SANGAMON
SHELBY TAZEWELL WASHINGTON
WOODFORD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 373
VALID 152150Z - 152240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 WSW FAM
TO 40 E VIH TO 35 WNW STL TO 50 S UIN TO 10 SSE UIN.
..LYONS..07/15/20
ATTN...WFO...LSX...ILX...SGF...
&&
STATUS REPORT FOR WT 373
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-009-013-017-021-027-039-049-051-057-061-083-107-113-115-
117-119-121-125-129-133-135-137-139-143-147-149-157-163-167-169-
171-173-179-189-203-152240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND BROWN CALHOUN
CASS CHRISTIAN CLINTON
DE WITT EFFINGHAM FAYETTE
FULTON GREENE JERSEY
LOGAN MCLEAN MACON
MACOUPIN MADISON MARION
MASON MENARD MONROE
MONTGOMERY MORGAN MOULTRIE
PEORIA PIATT PIKE
RANDOLPH ST. CLAIR SANGAMON
SCHUYLER SCOTT SHELBY
TAZEWELL WASHINGTON WOODFORD
$$
MOC093-099-113-123-163-179-183-186-187-189-221-510-152240-
MO
. MISSOURI COUNTIES INCLUDED ARE
IRON JEFFERSON LINCOLN
MADISON PIKE REYNOLDS
ST. CHARLES STE. GENEVIEVE ST. FRANCOIS
ST. LOUIS WASHINGTON
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
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
|
Mod (50%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
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 (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 
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