Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 48
NWS STORM PREDICTION CENTER NORMAN OK
635 AM CDT SUN MAR 8 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WEST CENTRAL ILLINOIS
FAR SOUTHEAST KANSAS
SOUTHWEST THROUGH EAST CENTRAL MISSOURI
EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 635 AM UNTIL 200
PM CDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 55 MILES NORTH NORTHWEST OF
JOPLIN MISSOURI TO 25 MILES NORTH OF ALTON ILLINOIS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).
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.
DISCUSSION...TSTMS/POSSIBLE SUPERCELLS EXPECTED TO INCREASE DURING
THE NEXT SEVERAL HOURS OVER WW AREA AS HEIGHT FALLS/DEEP ASCENT
SHARPLY INCREASE ATOP WARM SECTOR OF DEVELOPING MO SFC LOW.
STRENGTH OF LOW LVL SHEAR /50 KT/ AND EXISTING QUASI-DISCRETE STORM
STRUCTURES SUGGEST POTENTIAL FOR ISOLD TORNADOES IN ADDITION TO
BOWING SEGMENTS WITH HIGH WIND/HAIL.
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
400. MEAN STORM MOTION VECTOR 24045.
...CORFIDI
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 48
NWS STORM PREDICTION CENTER NORMAN OK
635 AM CDT SUN MAR 8 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WEST CENTRAL ILLINOIS
FAR SOUTHEAST KANSAS
SOUTHWEST THROUGH EAST CENTRAL MISSOURI
EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 635 AM UNTIL 200
PM CDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 55 MILES NORTH NORTHWEST OF
JOPLIN MISSOURI TO 25 MILES NORTH OF ALTON ILLINOIS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).
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.
DISCUSSION...TSTMS/POSSIBLE SUPERCELLS EXPECTED TO INCREASE DURING
THE NEXT SEVERAL HOURS OVER WW AREA AS HEIGHT FALLS/DEEP ASCENT
SHARPLY INCREASE ATOP WARM SECTOR OF DEVELOPING MO SFC LOW.
STRENGTH OF LOW LVL SHEAR /50 KT/ AND EXISTING QUASI-DISCRETE STORM
STRUCTURES SUGGEST POTENTIAL FOR ISOLD TORNADOES IN ADDITION TO
BOWING SEGMENTS WITH HIGH WIND/HAIL.
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
400. MEAN STORM MOTION VECTOR 24045.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 48 TORNADO IL KS MO 081135Z - 081900Z
AXIS..65 STATUTE MILES NORTH AND SOUTH OF LINE..
55NNW JLN/JOPLIN MO/ - 25N ALN/ALTON IL/
..AVIATION COORDS.. 55NM N/S /30SW BUM - 31NE STL/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 400. MEAN STORM MOTION VECTOR 24045.
LAT...LON 38839488 40209005 38319005 36939488
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 48 Status Report Messages:
STATUS REPORT #6 ON WW 48
VALID 081750Z - 081840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSW BLV
TO 20 W SPI TO 40 ENE UIN.
..DIAL..03/08/09
ATTN...WFO...LSX...ILX...SGF...EAX...
&&
STATUS REPORT FOR WT 48
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-027-051-117-119-121-135-157-163-189-081840-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND CLINTON FAYETTE
MACOUPIN MADISON MARION
MONTGOMERY RANDOLPH ST. CLAIR
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 #5 ON WW 48
VALID 081640Z - 081740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 ESE VIH
TO 30 WNW STL TO 25 SSE UIN TO 15 NNE UIN.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 208
..DIAL..03/08/09
ATTN...WFO...LSX...ILX...SGF...EAX...
&&
STATUS REPORT FOR WT 48
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC005-009-013-017-027-051-061-083-117-119-121-133-135-137-149-
157-163-169-171-189-081740-
IL
. ILLINOIS COUNTIES INCLUDED ARE
BOND BROWN CALHOUN
CASS CLINTON FAYETTE
GREENE JERSEY MACOUPIN
MADISON MARION MONROE
MONTGOMERY MORGAN PIKE
RANDOLPH ST. CLAIR SCHUYLER
SCOTT WASHINGTON
$$
MOC093-099-123-149-179-183-186-187-189-221-510-081740-
MO
. MISSOURI COUNTIES INCLUDED ARE
IRON JEFFERSON MADISON
OREGON REYNOLDS ST. CHARLES
STE. GENEVIEVE ST. FRANCOIS ST. LOUIS
WASHINGTON
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
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.
$$
STATUS REPORT #4 ON WW 48
VALID 081540Z - 081640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 S TBN TO
25 ENE COU TO 40 SSW UIN TO 15 SW UIN TO 25 NW UIN.
..DIAL..03/08/09
ATTN...WFO...LSX...ILX...SGF...EAX...
&&
STATUS REPORT FOR WT 48
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-005-009-013-017-027-051-061-083-117-119-121-133-135-137-
149-157-163-169-171-189-081640-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS BOND BROWN
CALHOUN CASS CLINTON
FAYETTE GREENE JERSEY
MACOUPIN MADISON MARION
MONROE MONTGOMERY MORGAN
PIKE RANDOLPH ST. CLAIR
SCHUYLER SCOTT WASHINGTON
$$
MOC055-065-071-073-091-093-099-113-123-125-139-149-153-161-163-
179-183-186-187-189-203-215-219-221-510-081640-
MO
. MISSOURI COUNTIES INCLUDED ARE
CRAWFORD DENT FRANKLIN
GASCONADE HOWELL IRON
JEFFERSON LINCOLN MADISON
MARIES MONTGOMERY OREGON
OZARK PHELPS PIKE
REYNOLDS ST. CHARLES STE. GENEVIEVE
ST. FRANCOIS ST. LOUIS SHANNON
TEXAS WARREN WASHINGTON
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 48
VALID 081435Z - 081540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 WSW TBN
TO 10 NNE COU TO 50 SW UIN TO 40 SE IRK.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 206
..DIAL..03/08/09
ATTN...WFO...LSX...ILX...SGF...EAX...
&&
STATUS REPORT FOR WT 48
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-009-013-017-061-083-117-119-133-137-149-163-169-171-
081540-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS BROWN CALHOUN
CASS GREENE JERSEY
MACOUPIN MADISON MONROE
MORGAN PIKE ST. CLAIR
SCHUYLER SCOTT
$$
MOC007-027-051-055-065-071-073-099-103-105-111-113-125-127-137-
139-151-161-163-169-173-183-189-205-215-219-221-229-510-
081540-
MO
. MISSOURI COUNTIES INCLUDED ARE
AUDRAIN CALLAWAY COLE
CRAWFORD DENT FRANKLIN
GASCONADE JEFFERSON KNOX
LACLEDE LEWIS LINCOLN
MARIES MARION MONROE
MONTGOMERY OSAGE PHELPS
PIKE PULASKI RALLS
ST. CHARLES ST. LOUIS SHELBY
TEXAS WARREN WASHINGTON
WRIGHT
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
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.
$$
STATUS REPORT #2 ON WW 48
VALID 081335Z - 081440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 N SGF TO
35 ESE SZL TO 45 S IRK.
..DIAL..03/08/09
ATTN...WFO...LSX...ILX...SGF...EAX...
&&
STATUS REPORT FOR WT 48
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-009-013-017-061-083-117-119-133-137-149-163-169-171-
081440-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS BROWN CALHOUN
CASS GREENE JERSEY
MACOUPIN MADISON MONROE
MORGAN PIKE ST. CLAIR
SCHUYLER SCOTT
$$
MOC007-019-027-029-051-053-055-059-065-071-073-077-089-099-103-
105-111-113-121-125-127-131-135-137-139-141-151-161-163-169-173-
175-183-189-205-215-219-221-225-229-510-081440-
MO
. MISSOURI COUNTIES INCLUDED ARE
AUDRAIN BOONE CALLAWAY
CAMDEN COLE COOPER
CRAWFORD DALLAS DENT
FRANKLIN GASCONADE GREENE
HOWARD JEFFERSON KNOX
LACLEDE LEWIS LINCOLN
MACON MARIES MARION
MILLER MONITEAU MONROE
MONTGOMERY MORGAN OSAGE
PHELPS PIKE PULASKI
RALLS RANDOLPH ST. CHARLES
ST. LOUIS SHELBY TEXAS
WARREN WASHINGTON WEBSTER
WRIGHT
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 48
VALID 081245Z - 081340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 E JLN TO
40 SSE CDJ.
..SPC..03/08/09
ATTN...WFO...LSX...ILX...SGF...EAX...
&&
STATUS REPORT FOR WT 48
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC001-009-013-017-061-083-117-119-133-137-149-163-169-171-
081340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ADAMS BROWN CALHOUN
CASS GREENE JERSEY
MACOUPIN MADISON MONROE
MORGAN PIKE ST. CLAIR
SCHUYLER SCOTT
$$
MOC007-015-019-027-029-039-041-051-053-055-057-059-071-073-083-
085-089-099-103-105-111-113-121-125-127-131-135-137-139-141-151-
159-161-163-167-169-173-175-183-185-189-195-205-219-221-510-
081340-
MO
. MISSOURI COUNTIES INCLUDED ARE
AUDRAIN BENTON BOONE
CALLAWAY CAMDEN CEDAR
CHARITON COLE COOPER
CRAWFORD DADE DALLAS
FRANKLIN GASCONADE HENRY
HICKORY HOWARD JEFFERSON
KNOX LACLEDE LEWIS
LINCOLN MACON MARIES
MARION MILLER MONITEAU
MONROE MONTGOMERY MORGAN
OSAGE PETTIS PHELPS
PIKE POLK PULASKI
RALLS RANDOLPH ST. CHARLES
ST. CLAIR ST. LOUIS SALINE
SHELBY WARREN WASHINGTON
MISSOURI INDEPENDENT CITIES INCLUDED ARE
ST. LOUIS CITY
$$
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 (40%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
High (70%)
|
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 (>95%)
|
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.
weather.gov 
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