Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 369
NWS STORM PREDICTION CENTER NORMAN OK
745 PM CDT WED JUN 10 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND SOUTHERN ILLINOIS
SOUTHEASTERN MISSOURI
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 745 PM
UNTIL 300 AM 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 EAST AND WEST OF A LINE FROM 20 MILES EAST NORTHEAST OF
DECATUR ILLINOIS TO 20 MILES SOUTH OF POPLAR BLUFF MISSOURI. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).
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.
OTHER WATCH INFORMATION...CONTINUE...WW 365...WW 366...WW
367...WW 368...
DISCUSSION...LOOSELY-ORGANIZED CONVECTIVE SYSTEM IN CNTRL MO...AND
MORE ISOLD STORMS FORMING IN DPVA/WAA AREA AHEAD OF IT...EXPECTED TO
CONTINUE GENERALLY ENE ACROSS THE MS RVR LATER THIS EVE.
COMBINATION OF WEAK LOW LVL VEERING PROFILES ALONG W-E STNRY FRONT
OVER E CNTRL MO-CNTRL IL...MODERATE DEEP WLY SHEAR ALONG THIS
BOUNDARY...AND RELATIVELY SMALL TEMPERATURE-DEW POINT SPREADS
SUGGEST POTENTIAL FOR A FEW SEMI-DISCRETE SUPERCELLS/POSSIBLE ISOLD
TORNADOES. FARTHER S...SERN MO MAY BE GRAZED BY NRN PART OF BOW MCS
NOW IN NW AR AS THAT SYSTEM CONTINUES ENE AT 40-50 KTS.
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
500. MEAN STORM MOTION VECTOR 25040.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 369 TORNADO IL MO 110045Z - 110800Z
AXIS..65 STATUTE MILES EAST AND WEST OF LINE..
20ENE DEC/DECATUR IL/ - 20S POF/POPLAR BLUFF MO/
..AVIATION COORDS.. 55NM E/W /20NE DEC - 32NE ARG/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25040.
LAT...LON 39938729 36478930 36479163 39938975
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 369 Status Report Messages:
STATUS REPORT #4 ON WW 369
VALID 110650Z - 110740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SSE MTO
TO 15 ESE MTO TO 20 NNW MTO TO 10 NW DEC.
..PETERS..06/11/09
ATTN...WFO...PAH...LSX...ILX...
&&
STATUS REPORT FOR WT 369
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC019-023-029-033-039-041-045-101-147-183-110740-
IL
. ILLINOIS COUNTIES INCLUDED ARE
CHAMPAIGN CLARK COLES
CRAWFORD DE WITT DOUGLAS
EDGAR LAWRENCE PIATT
VERMILION
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 369
VALID 110550Z - 110640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SW PAH TO
5 ESE CGI TO 20 WSW MDH TO 10 SSE MDH TO 25 SSE MVN TO 20 E MVN
TO 30 NE SLO TO 25 SE SPI TO 20 WNW DEC.
..PETERS..06/11/09
ATTN...WFO...PAH...LSX...ILX...
&&
STATUS REPORT FOR WT 369
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC003-019-021-023-025-029-033-035-039-041-045-047-049-059-065-
069-079-087-101-115-127-139-147-151-153-159-165-173-181-183-185-
191-193-199-110640-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER CHAMPAIGN CHRISTIAN
CLARK CLAY COLES
CRAWFORD CUMBERLAND DE WITT
DOUGLAS EDGAR EDWARDS
EFFINGHAM GALLATIN HAMILTON
HARDIN JASPER JOHNSON
LAWRENCE MACON MASSAC
MOULTRIE PIATT POPE
PULASKI RICHLAND SALINE
SHELBY UNION VERMILION
WABASH WAYNE WHITE
WILLIAMSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 369
VALID 110435Z - 110540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 NE UNO TO
15 ESE BLV TO 35 NNW SLO TO 35 SW SPI.
..GUYER..06/11/09
ATTN...WFO...PAH...LSX...ILX...
&&
STATUS REPORT FOR WT 369
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC003-005-019-021-023-025-027-029-033-035-039-041-045-047-049-
051-055-059-065-069-077-079-081-087-101-107-115-121-127-129-135-
137-139-145-147-151-153-157-159-165-167-171-173-181-183-185-189-
191-193-199-110540-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER BOND CHAMPAIGN
CHRISTIAN CLARK CLAY
CLINTON COLES CRAWFORD
CUMBERLAND DE WITT DOUGLAS
EDGAR EDWARDS EFFINGHAM
FAYETTE FRANKLIN GALLATIN
HAMILTON HARDIN JACKSON
JASPER JEFFERSON JOHNSON
LAWRENCE LOGAN MACON
MARION MASSAC MENARD
MONTGOMERY MORGAN MOULTRIE
PERRY PIATT POPE
PULASKI RANDOLPH RICHLAND
SALINE SANGAMON SCOTT
SHELBY UNION VERMILION
WABASH WASHINGTON WAYNE
WHITE WILLIAMSON
$$
MOC017-023-031-035-123-133-143-157-181-201-207-223-110540-
MO
. MISSOURI COUNTIES INCLUDED ARE
BOLLINGER BUTLER CAPE GIRARDEAU
CARTER MADISON MISSISSIPPI
NEW MADRID PERRY RIPLEY
SCOTT STODDARD WAYNE
$$
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.
$$
STATUS REPORT #1 ON WW 369
VALID 110240Z - 110340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1036
..GUYER..06/11/09
ATTN...WFO...PAH...LSX...ILX...
&&
STATUS REPORT FOR WT 369
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC003-005-013-019-021-023-025-027-029-033-035-039-041-045-047-
049-051-055-059-061-065-069-077-079-081-083-087-101-107-115-117-
119-121-127-129-133-135-137-139-145-147-151-153-157-159-163-165-
167-171-173-181-183-185-189-191-193-199-110340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER BOND CALHOUN
CHAMPAIGN CHRISTIAN CLARK
CLAY CLINTON COLES
CRAWFORD CUMBERLAND DE WITT
DOUGLAS EDGAR EDWARDS
EFFINGHAM FAYETTE FRANKLIN
GALLATIN GREENE HAMILTON
HARDIN JACKSON JASPER
JEFFERSON JERSEY JOHNSON
LAWRENCE LOGAN MACON
MACOUPIN MADISON MARION
MASSAC MENARD MONROE
MONTGOMERY MORGAN MOULTRIE
PERRY PIATT POPE
PULASKI RANDOLPH RICHLAND
ST. CLAIR SALINE SANGAMON
SCOTT SHELBY UNION
VERMILION WABASH WASHINGTON
WAYNE WHITE WILLIAMSON
$$
MOC017-023-031-035-123-133-143-157-181-186-187-201-207-223-
110340-
MO
. MISSOURI COUNTIES INCLUDED ARE
BOLLINGER BUTLER CAPE GIRARDEAU
CARTER MADISON MISSISSIPPI
NEW MADRID PERRY RIPLEY
STE. GENEVIEVE ST. FRANCOIS SCOTT
STODDARD WAYNE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
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 (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% (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.