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The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 237
NWS STORM PREDICTION CENTER NORMAN OK
330 PM CDT WED APR 27 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHEAST ARKANSAS
SOUTHERN ILLINOIS
SOUTHERN INDIANA
WESTERN KENTUCKY
SOUTHEAST MISSOURI INCLUDING THE BOOTHEEL
WEST TENNESSEE
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 330 PM UNTIL
1100 PM CDT.
TORNADOES...HAIL TO 2.5 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 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES WEST NORTHWEST OF
EVANSVILLE INDIANA TO 45 MILES SOUTH OF JACKSON TENNESSEE. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU7).
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 231...WW 232...WW
233...WW 234...WW 235...WW 236...
DISCUSSION...DISCRETE THUNDERSTORM DEVELOPMENT IS OCCURRING OVER
NORTHEAST AR AND WEST TN...IN REGION WHERE SUBSTANTIAL LOW LEVEL
DESTABILIZATION IS OCCURRING. GIVEN THE APPROACH OF DEEP SURFACE
LOW...POTENTIAL IS INCREASING FOR TORNADIC SUPERCELLS AS FAR NORTH
AS THE LOWER OH RIVER VALLEY THROUGH THE EVENING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24035.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 237 TORNADO AR IL IN KY MO TN 272030Z - 280400Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
30WNW EVV/EVANSVILLE IN/ - 45S MKL/JACKSON TN/
..AVIATION COORDS.. 65NM E/W /21NW PXV - 53E MEM/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 38188666 34938759 34939023 38188941
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 237 Status Report Messages:
STATUS REPORT #6 ON WW 237
VALID 280135Z - 280240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 E CKV TO
5 NE CKV TO 30 ENE EVV.
..BROYLES..04/28/11
ATTN...WFO...MEG...PAH...
&&
STATUS REPORT FOR WT 237
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC147-280240-
IN
. INDIANA COUNTIES INCLUDED ARE
SPENCER
$$
KYC059-177-219-280240-
KY
. KENTUCKY COUNTIES INCLUDED ARE
DAVIESS MUHLENBERG TODD
$$
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.
$$
STATUS REPORT #5 ON WW 237
VALID 280040Z - 280140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE CKV
TO 35 W HOP TO 35 E MVN.
..BROYLES..04/28/11
ATTN...WFO...MEG...PAH...
&&
STATUS REPORT FOR WT 237
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC051-125-129-147-163-173-280140-
IN
. INDIANA COUNTIES INCLUDED ARE
GIBSON PIKE POSEY
SPENCER VANDERBURGH WARRICK
$$
KYC033-047-055-059-101-107-143-149-177-219-221-225-233-280140-
KY
. KENTUCKY COUNTIES INCLUDED ARE
CALDWELL CHRISTIAN CRITTENDEN
DAVIESS HENDERSON HOPKINS
LYON MCLEAN MUHLENBERG
TODD TRIGG UNION
WEBSTER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 237
VALID 272345Z - 280040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 S MKL TO
30 E POF.
..BROYLES..04/27/11
ATTN...WFO...MEG...PAH...
&&
STATUS REPORT FOR WT 237
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC003-047-055-059-065-069-077-081-087-127-145-151-153-165-181-
185-191-193-199-280040-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER EDWARDS FRANKLIN
GALLATIN HAMILTON HARDIN
JACKSON JEFFERSON JOHNSON
MASSAC PERRY POPE
PULASKI SALINE UNION
WABASH WAYNE WHITE
WILLIAMSON
$$
INC051-125-129-147-163-173-280040-
IN
. INDIANA COUNTIES INCLUDED ARE
GIBSON PIKE POSEY
SPENCER VANDERBURGH WARRICK
$$
KYC007-033-035-039-047-055-059-075-083-101-105-107-139-143-145-
149-157-177-219-221-225-233-280040-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BALLARD CALDWELL CALLOWAY
CARLISLE CHRISTIAN CRITTENDEN
DAVIESS FULTON GRAVES
HENDERSON HICKMAN HOPKINS
LIVINGSTON LYON MCCRACKEN
MCLEAN MARSHALL MUHLENBERG
TODD TRIGG UNION
WEBSTER
$$
MOC031-133-143-201-207-280040-
MO
. MISSOURI COUNTIES INCLUDED ARE
CAPE GIRARDEAU MISSISSIPPI NEW MADRID
SCOTT STODDARD
$$
TNC017-023-033-039-053-071-077-079-109-113-183-280040-
TN
. TENNESSEE COUNTIES INCLUDED ARE
CARROLL CHESTER CROCKETT
DECATUR GIBSON HARDIN
HENDERSON HENRY MCNAIRY
MADISON WEAKLEY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 237
VALID 272240Z - 272340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 N TUP TO
15 ENE DYR TO 25 NNE DYR TO 35 ESE POF.
..BROYLES..04/27/11
ATTN...WFO...MEG...PAH...
&&
STATUS REPORT FOR WT 237
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ILC003-047-055-059-065-069-077-081-087-127-145-151-153-165-181-
185-191-193-199-272340-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER EDWARDS FRANKLIN
GALLATIN HAMILTON HARDIN
JACKSON JEFFERSON JOHNSON
MASSAC PERRY POPE
PULASKI SALINE UNION
WABASH WAYNE WHITE
WILLIAMSON
$$
INC051-125-129-147-163-173-272340-
IN
. INDIANA COUNTIES INCLUDED ARE
GIBSON PIKE POSEY
SPENCER VANDERBURGH WARRICK
$$
KYC007-033-035-039-047-055-059-075-083-101-105-107-139-143-145-
149-157-177-219-221-225-233-272340-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BALLARD CALDWELL CALLOWAY
CARLISLE CHRISTIAN CRITTENDEN
DAVIESS FULTON GRAVES
HENDERSON HICKMAN HOPKINS
LIVINGSTON LYON MCCRACKEN
MCLEAN MARSHALL MUHLENBERG
TODD TRIGG UNION
WEBSTER
$$
MOC031-133-143-201-207-272340-
MO
. MISSOURI COUNTIES INCLUDED ARE
CAPE GIRARDEAU MISSISSIPPI NEW MADRID
SCOTT STODDARD
$$
TNC017-023-033-039-053-071-077-079-109-113-183-272340-
TN
. TENNESSEE COUNTIES INCLUDED ARE
CARROLL CHESTER CROCKETT
DECATUR GIBSON HARDIN
HENDERSON HENRY MCNAIRY
MADISON WEAKLEY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 237
VALID 272150Z - 272240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/27/11
ATTN...WFO...MEG...PAH...
&&
STATUS REPORT FOR WT 237
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC093-272240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
MISSISSIPPI
$$
ILC003-055-059-065-069-077-087-127-151-153-165-181-193-199-
272240-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER FRANKLIN GALLATIN
HAMILTON HARDIN JACKSON
JOHNSON MASSAC POPE
PULASKI SALINE UNION
WHITE WILLIAMSON
$$
INC051-125-129-147-163-173-272240-
IN
. INDIANA COUNTIES INCLUDED ARE
GIBSON PIKE POSEY
SPENCER VANDERBURGH WARRICK
$$
KYC007-033-035-039-047-055-059-075-083-101-105-107-139-143-145-
149-157-177-219-221-225-233-272240-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BALLARD CALDWELL CALLOWAY
CARLISLE CHRISTIAN CRITTENDEN
DAVIESS FULTON GRAVES
HENDERSON HICKMAN HOPKINS
LIVINGSTON LYON MCCRACKEN
MCLEAN MARSHALL MUHLENBERG
TODD TRIGG UNION
WEBSTER
$$
MOC031-069-133-143-155-201-207-272240-
MO
. MISSOURI COUNTIES INCLUDED ARE
CAPE GIRARDEAU DUNKLIN MISSISSIPPI
NEW MADRID PEMISCOT SCOTT
STODDARD
$$
TNC017-023-033-039-045-047-053-069-071-075-077-079-095-097-109-
113-131-167-183-272240-
TN
. TENNESSEE COUNTIES INCLUDED ARE
CARROLL CHESTER CROCKETT
DECATUR DYER FAYETTE
GIBSON HARDEMAN HARDIN
HAYWOOD HENDERSON HENRY
LAKE LAUDERDALE MCNAIRY
MADISON OBION TIPTON
WEAKLEY
$$
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.
$$
STATUS REPORT #1 ON WW 237
VALID 272045Z - 272140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/27/11
ATTN...WFO...MEG...PAH...
&&
STATUS REPORT FOR WT 237
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC093-272140-
AR
. ARKANSAS COUNTIES INCLUDED ARE
MISSISSIPPI
$$
ILC003-055-059-065-069-077-087-127-151-153-165-181-193-199-
272140-
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER FRANKLIN GALLATIN
HAMILTON HARDIN JACKSON
JOHNSON MASSAC POPE
PULASKI SALINE UNION
WHITE WILLIAMSON
$$
INC051-125-129-147-163-173-272140-
IN
. INDIANA COUNTIES INCLUDED ARE
GIBSON PIKE POSEY
SPENCER VANDERBURGH WARRICK
$$
KYC007-033-035-039-047-055-059-075-083-101-105-107-139-143-145-
149-157-177-219-221-225-233-272140-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BALLARD CALDWELL CALLOWAY
CARLISLE CHRISTIAN CRITTENDEN
DAVIESS FULTON GRAVES
HENDERSON HICKMAN HOPKINS
LIVINGSTON LYON MCCRACKEN
MCLEAN MARSHALL MUHLENBERG
TODD TRIGG UNION
WEBSTER
$$
MOC031-069-133-143-155-201-207-272140-
MO
. MISSOURI COUNTIES INCLUDED ARE
CAPE GIRARDEAU DUNKLIN MISSISSIPPI
NEW MADRID PEMISCOT SCOTT
STODDARD
$$
TNC017-023-033-039-045-047-053-069-071-075-077-079-095-097-109-
113-131-167-183-272140-
TN
. TENNESSEE COUNTIES INCLUDED ARE
CARROLL CHESTER CROCKETT
DECATUR DYER FAYETTE
GIBSON HARDEMAN HARDIN
HAYWOOD HENDERSON HENRY
LAKE LAUDERDALE MCNAIRY
MADISON OBION TIPTON
WEAKLEY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
High (70%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Mod (40%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (50%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (60%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (50%)
|
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.