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URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 151
NWS STORM PREDICTION CENTER NORMAN OK
350 PM CDT TUE MAY 11 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WESTERN OKLAHOMA
WESTERN NORTH TEXAS
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
1000 PM CDT.
SEVERAL TORNADOES
ISOLATED INTENSE TORNADOES POSSIBLE
WIDELY SCATTERED DAMAGING WINDS
ISOLATED WIND GUSTS TO 70 MPH POSSIBLE
WIDESPREAD LARGE HAIL
ISOLATED HAIL TO 3.0 INCHES IN DIAMETER POSSIBLE
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 10 MILES SOUTHEAST OF
CHICKASHA OKLAHOMA TO 45 MILES WEST NORTHWEST OF ALTUS OKLAHOMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).
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...ISOLATED SUPERCELL THUNDERSTORMS ARE EXPECTED TO
DEVELOP THIS AFTERNOON AND EVENING NEAR RETREATING DRYLINE...WHERE
STRONG HEATING HAS YIELDED EXTREME INSTABILITY. INCREASING VERTICAL
WIND SHEAR THROUGH THE EVENING WILL ENHANCE THE RISK OF VERY LARGE
HAIL AND TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24030.
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1258 AM CDT MON MAY 10 2010
VALID 101200Z - 111200Z
...THERE IS A HIGH RISK OF SVR TSTMS ACROSS PARTS OF SE KS AND ERN
OK...
...THERE IS A MDT RISK OF SVR TSTMS ACROSS PARTS OF CNTRL AND ERN
KS...CNTRL AND ERN OK...WRN MO AND NW AR...
...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PARTS OF THE SRN AND
CNTRL PLAINS...MID-MS VALLEY AND OZARKS...
...REGIONAL TORNADO OUTBREAK AND LONG-TRACK STRONG TO VIOLENT
TORNADOES BECOMING LIKELY IN ERN OK AND SE KS FROM LATE THIS
AFTERNOON INTO THE EVENING...
...SRN AND CNTRL PLAINS...
RAPID MOISTURE TRANSPORT WILL TAKE PLACE TODAY ACROSS THE SRN PLAINS
AS AN IMPRESSIVE NEGATIVELY-TILTED UPPER-LEVEL TROUGH MOVES QUICKLY
INTO THE REGION FROM THE WEST. SCATTERED THUNDERSTORMS SHOULD BE
ONGOING ON THE NOSE OF A 50 TO 60 KT LOW-LEVEL JET ACROSS ERN KS
WITH THIS CONVECTION BEING SHUNTED NNEWD AWAY FROM THE HIGH RISK
AREA AROUND MIDDAY. AT THIS TIME...A WELL-DEFINED MOIST AXIS AND
DRYLINE WILL RAPIDLY ORGANIZE MOVING ENEWD ACROSS WRN OK THIS
AFTERNOON. SFC DEWPOINTS ARE FORECAST TO RAPIDLY INCREASE INTO THE
UPPER 60S TO AROUND 70 F ACROSS ECNTRL OK WHERE FORECAST SFC TEMPS
SHOULD REACH THE MID TO UPPER 80S F. THIS RESULTS IN A TONGUE OF
STRONG INSTABILITY FROM NRN TX EXTENDING NWD INTO NRN OK WITH MLCAPE
VALUES IN THE 3000 TO 4000 J/KG RANGE. AS THE UPPER-LEVEL TROUGH
APPROACHES THE INSTABILITY AXIS...A 75-90 KT MID-LEVEL JET WILL MOVE
EWD ACROSS NRN OK. THIS FEATURE WILL CREATE VERY STRONG DEEP LAYER
SHEAR PROFILES WITH 0-6 KM SHEAR VALUES ACROSS THE HIGH RISK AREA
REACHING THE 70 TO 80 KT RANGE. THIS COMBINED WITH THE STRONG
INSTABILITY SHOULD RESULT IN RAPID SUPERCELL INITIATION AS STORMS GO
UP ALONG THE DRYLINE ON THE WRN EDGE OF THE LOW-LEVEL JET LATE THIS
AFTERNOON.
THE LOW-LEVEL JET WILL CREATE VERY STRONG LOW-LEVEL SHEAR PROFILES
WITH FORECAST SOUNDINGS ACROSS THE HIGH RISK AREA AT 00Z SHOWING 0-3
KM HELICITIES IN THE 450 TO 550 M2/S2 RANGE SUGGESTING THE SHEAR
ENVIRONMENT WILL BE VERY FAVORABLE FOR TORNADOES. THE CURRENT
THINKING IS THAT SEVERAL SUPERCELLS WILL INITIATE ALONG THE I-35
CORRIDOR FROM WICHITA SWD TO OKLAHOMA CITY WITH THE CELLS BECOMING
TORNADIC TRACKING ENEWD ALONG THE I-44 CORRIDOR INTO THE TULSA AREA
AND INTO FAR SE KS BY EARLY EVENING. STORM MOTIONS SHOULD BE TO THE
EAST NORTHEAST AT 50 KT SUGGESTING THE TORNADOES COULD BE LONG-TRACK
WITH STRONG TO VIOLENT TORNADOES CERTAINLY POSSIBLE ACROSS THE HIGH
RISK AREA. FORECAST SOUNDINGS SHOW VERY STEEP MID-LEVEL LAPSE RATES
WHICH COMBINED WITH THE STRONG VERTICAL SHEAR SHOULD SUPPORT VERY
LARGE HAIL WITH SUPERCELLS THAT DEVELOP ALONG THE DRYLINE. THIS
THREAT SHOULD EXIST SSWWD INTO NRN AND WCNTRL TX WHERE SUPERCELLS
MAY ALSO PRODUCE A FEW TORNADOES.
FURTHER NORTH IN THE CNTRL PLAINS...THUNDERSTORMS SHOULD ALSO
INITIATE NORTH OF SFC LOW IN CNTRL AND NRN KS LATE THIS AFTERNOON.
FORECAST SOUNDINGS ACROSS NRN KS SHOW STRONG VERTICAL SHEAR PROFILES
SUGGESTING SUPERCELL DEVELOPMENT WILL BE POSSIBLE. SUPERCELLS WILL
BECOME INCREASINGLY LIKELY AS MODERATE INSTABILITY DEVELOPS ACROSS
ERN KS EARLY THIS EVENING. TORNADOES AND VERY LARGE HAIL WILL BE
POSSIBLE WITH SUPERCELLS. HOWEVER...A POTENTIAL FOR WIND DAMAGE WILL
ALSO BE POSSIBLE ESPECIALLY IF THE STORMS CAN ORGANIZE INTO A BOWING
LINE-SEGMENT MOVING INTO WRN MO DURING THE LATE EVENING.
..BROYLES/STOPPKOTTE.. 05/10/2010
CLICK TO GET WUUS01 PTSDY1 PRODUCT
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 64
NWS STORM PREDICTION CENTER NORMAN OK
920 PM CDT WED APR 7 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHEAST INDIANA
CENTRAL KENTUCKY
SOUTHWEST OHIO
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 920 PM
UNTIL 200 AM CDT.
HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTH
SOUTHEAST OF BOWLING GREEN KENTUCKY TO 15 MILES NORTH OF
CINCINNATI OHIO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
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.
OTHER WATCH INFORMATION...CONTINUE...WW 63...
DISCUSSION...SMALL SCALE BOW ECHOES WILL CONTINUE TO POSE A THREAT
OF DAMAGING WINDS AS THEY RACE ENEWD THIS EVENING ACROSS CENTRAL KY
AND THE OH RIVER VALLEY.
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 400. MEAN STORM MOTION
VECTOR 24040.
SEVERE THUNDERSTORM WARNING INC041-161-177-080230- /O.NEW.KILN.SV.W.0023.100408T0142Z-100408T0230Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILMINGTON OH 942 PM EDT WED APR 7 2010 THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FAYETTE COUNTY IN EAST CENTRAL INDIANA... UNION COUNTY IN EAST CENTRAL INDIANA... WAYNE COUNTY IN EAST CENTRAL INDIANA... * UNTIL 1030 PM EDT. * AT 938 PM EDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND WINDS TO 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM DUBLIN TO FALMOUTH TO 14 MILES SOUTHWEST OF GLENWOOD...MOVING NORTHEAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... HAGERSTOWN... DUBLIN... CAMBRIDGE CITY... CONNERSVILLE... FOUNTAIN CITY... CENTERVILLE... LIBERTY... RICHMOND... IN ADDITION...FALMOUTH...FRANKLIN...BENTONVILLE...MOUNT AUBURN... GLENWOOD...ECONOMY...EAST GERMANTOWN AND JACKSONBURG ARE NEAR THE PATH OF THESE SEVERE THUNDERSTORMS. THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 134 AND 155. PRECAUTIONARY/PREPAREDNESS ACTIONS... STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY. && LAT...LON 3979 8531 3980 8523 3986 8523 3991 8521
TORNADO WARNING
INC057-059-095-097-080145-
/O.NEW.KIND.TO.W.0005.100408T0117Z-100408T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
917 PM EDT WED APR 7 2010
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN HAMILTON COUNTY IN CENTRAL INDIANA...
HANCOCK COUNTY IN CENTRAL INDIANA...
SOUTHERN MADISON COUNTY IN CENTRAL INDIANA...
NORTHEASTERN MARION COUNTY IN CENTRAL INDIANA...
* UNTIL 945 PM EDT
* AT 914 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR LAWRENCE...OR 7 MILES NORTHEAST OF
INDIANAPOLIS...AND MOVING EAST AT 35 MPH.
* THIS TORNADIC STORM WILL BE NEAR...
MCCORDSVILLE AROUND 925 PM EDT...
FORTVILLE AROUND 935 PM EDT...
GREENFIELD AND INGALLS AROUND 940 PM EDT...
WILKINSON AND PENDLETON AROUND 945 PM EDT...
THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 0 AND 18.
THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 86 AND 112.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3987 8560 3979 8560 3979 8564 3977 8564
3980 8612 3994 8615 4003 8561 3988 8559
TIME...MOT...LOC 0118Z 270DEG 29KT 3985 8602
MESOSCALE DISCUSSION 0284
NWS STORM PREDICTION CENTER NORMAN OK
0315 PM CDT WED APR 07 2010
AREAS AFFECTED...SERN MO...SRN AND ERN IL...WRN IN AND EXTREME WRN
KY
CONCERNING...TORNADO WATCH 61...
VALID 072015Z - 072215Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 61 CONTINUES.
THE THREAT FOR ISOLATED DAMAGING WIND...LARGE HAIL AND ISOLATED
TORNADOES WILL PERSIST NEXT FEW HOURS.
STORMS CONTINUE DEVELOPING ALONG AN EWD ADVANCING COLD FRONT FROM
SERN MO THROUGH NERN IL. OTHER STORMS ARE DEVELOPING IN PRE-FRONTAL
WARM SECTOR AND NEAR WARM FRONT ACROSS NERN IL INTO NRN IND.
DIABATIC WARMING HAS BOOSTED SURFACE TEMPERATURES INTO THE LOW 70S
ACROSS CNTRL AND ERN IL...RESULTING IN AN AXIS OF 500-1000 J/KG
MLCAPE. INSTABILITY IS SOMEWHAT MORE LIMITED FARTHER EAST INTO IND
WHERE LOW CLOUDS HAVE PERSISTED. STORMS REMAIN MORE DISCRETE ALONG
THE NRN END OF THE LINE ACROSS NERN IL INTO NWRN IND. SOME OF THESE
STORMS ARE APPROACHING THE WARM FRONT WHERE THE NEAR SURFACE FLOW IS
BACKED RESULTING IN LARGER LOW-LEVEL HODOGRAPHS THAN FARTHER SOUTH.
THESE STORMS MAY HAVE A WINDOW TO PRODUCE ISOLATED TORNADOES AS THEY
INTERACT WITH THE WARM FRONT BEFORE WEAKENING AS THEY MOVE DEEPER
INTO THE COOL AIR NORTH OF THIS BOUNDARY. FARTHER SOUTH...DEEP LAYER
WIND PROFILES ARE MORE UNIDIRECTIONAL...BUT STRONG BULK SHEAR WILL
CONTINUE TO SUPPORT ORGANIZED STORMS INCLUDING BOWING LINE SEGMENTS
AND SUPERCELLS.
..DIAL.. 04/07/2010
ATTN...WFO...IWX...IND...PAH...LOT...ILX...LSX...
LAT...LON 39188912 40358889 41028849 41058763 40608622 38738736
36788891 36679060 38278957 39188912
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 62
NWS STORM PREDICTION CENTER NORMAN OK
155 PM CDT WED APR 7 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN ARKANSAS
NORTHERN LOUISIANA
MISSOURI BOOTHEEL
NORTHWEST MISSISSIPPI
WESTERN TENNESSEE
NORTHEAST TEXAS
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 155 PM UNTIL
800 PM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF
DYERSBURG TENNESSEE TO 60 MILES SOUTH SOUTHEAST OF LONGVIEW
TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
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.
OTHER WATCH INFORMATION...CONTINUE...WW 61...
DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INTENSIFY ALONG THE
SURFACE COLD FRONT FROM CENTRAL AR INTO NORTHEAST TX. CLOUDS AHEAD
OF THE FRONT HAVE LIMITED HEATING/DESTABILIZATION. HOWEVER...COOL
TEMPERATURES ALOFT AND RETURNING MOISTURE WILL PROVIDE SUFFICIENT
CAPE FOR A RISK OF A FEW SEVERE STORMS CAPABLE OF HAIL AND DAMAGING
WINDS. STORMS ARE EXPECTED TO BECOME MORE ORGANIZED INTO A SQUALL
LINE BY LATE AFTERNOON WITH AN INCREASING RISK OF DAMAGING WINDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 24030.
BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH OUTLINE UPDATE FOR WT 61
NWS STORM PREDICTION CENTER NORMAN OK
125 PM CDT WED APR 7 2010
TORNADO WATCH 61 IS IN EFFECT UNTIL 700 PM CDT FOR THE
FOLLOWING LOCATIONS
ILC003-005-019-021-023-025-027-029-033-035-039-041-045-047-049-
051-053-055-059-065-069-075-077-079-081-087-101-105-107-113-115-
117-119-121-127-133-135-139-145-147-151-153-157-159-163-165-167-
173-181-183-185-189-191-193-199-080000-
/O.NEW.KWNS.TO.A.0061.100407T1825Z-100408T0000Z/
IL
. ILLINOIS COUNTIES INCLUDED ARE
ALEXANDER BOND CHAMPAIGN
CHRISTIAN CLARK CLAY
CLINTON COLES CRAWFORD
CUMBERLAND DE WITT DOUGLAS
EDGAR EDWARDS EFFINGHAM
FAYETTE FORD FRANKLIN
GALLATIN HAMILTON HARDIN
IROQUOIS JACKSON JASPER
JEFFERSON JOHNSON LAWRENCE
LIVINGSTON LOGAN MACON
MACOUPIN MADISON MARION
MASSAC MCLEAN MONROE
MONTGOMERY MOULTRIE PERRY
PIATT POPE PULASKI
RANDOLPH RICHLAND SALINE
SANGAMON SHELBY ST. CLAIR
UNION VERMILION WABASH
WASHINGTON WAYNE WHITE
WILLIAMSON
INC007-011-015-017-021-023-045-049-051-067-073-083-085-099-103-
107-111-121-129-131-133-149-153-157-165-167-169-171-181-
080000-
/O.NEW.KWNS.TO.A.0061.100407T1825Z-100408T0000Z/
IN
. INDIANA COUNTIES INCLUDED ARE
BENTON BOONE CARROLL
CASS CLAY CLINTON
FOUNTAIN FULTON GIBSON
HOWARD JASPER KNOX
KOSCIUSKO MARSHALL MIAMI
MONTGOMERY NEWTON PARKE
POSEY PULASKI PUTNAM
STARKE SULLIVAN TIPPECANOE
VERMILLION VIGO WABASH
WARREN WHITE
KYC007-039-055-075-083-105-139-145-225-080000-
/O.NEW.KWNS.TO.A.0061.100407T1825Z-100408T0000Z/
KY
. KENTUCKY COUNTIES INCLUDED ARE
BALLARD CARLISLE CRITTENDEN
FULTON GRAVES HICKMAN
LIVINGSTON MCCRACKEN UNION
MOC017-023-031-035-093-099-123-133-143-157-179-181-186-187-201-
207-223-080000-
/O.NEW.KWNS.TO.A.0061.100407T1825Z-100408T0000Z/
MO
. MISSOURI COUNTIES INCLUDED ARE
BOLLINGER BUTLER CAPE GIRARDEAU
CARTER IRON JEFFERSON
MADISON MISSISSIPPI NEW MADRID
PERRY REYNOLDS RIPLEY
SCOTT ST. FRANCOIS STE. GENEVIEVE
STODDARD WAYNE
ATTN...WFO...PAH...LSX...IWX...IND...LOT...ILX...
MESOSCALE DISCUSSION 0282
NWS STORM PREDICTION CENTER NORMAN OK
1254 PM CDT WED APR 07 2010
AREAS AFFECTED...SERN MO THROUGH SRN AND CNTRL IL AND WRN IND
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 071754Z - 072030Z
THUNDERSTORM INTENSITIES WILL GRADUALLY INCREASE THIS AFTERNOON AS
CONVECTION DEVELOPS EWD THROUGH THE MID-MS AND OH VALLEYS. MAIN
THREAT WILL BE ISOLATED DAMAGING WIND AND POSSIBLY HAIL.
HOWEVER...AN ISOLATED TORNADO OR TWO CANNOT BE RULED OUT. TRENDS ARE
BEING MONITORED FOR A POSSIBLE WW.
A COLD FRONT EXTENDS FROM A SURFACE LOW IN WRN IL SSWWD THROUGH SERN
MO...NRN AR AND ERN TX. WARM FRONT STRETCHES EWD FROM THE LOW
THROUGH NRN IL...NWRN IND AND SRN LOWER MI. SATELLITE TRENDS
INDICATE A FEW BREAKS DEVELOPING IN THE PRE-FRONTAL MULTI-LAYER
CLOUD DECK CONTRIBUTING TO DESTABILIZATION OF THE BOUNDARY
LAYER...AND STORMS HAVE RECENTLY INCREASED NEAR THE MO/IL BORDER.
MLCAPE WILL LIKELY REMAIN AOB 1000 J/KG DUE TO MODEST LAPSE RATES
AND LOW-LEVEL MOISTURE WITH DEWPOINTS AROUND 60. STORMS WILL
CONTINUE DEVELOPING ALONG THE FRONT AS WELL AS WITHIN THE WEAKLY
CAPPED WARM SECTOR THIS AFTERNOON. SWLY BULK SHEAR OF 40-50 KT WILL
PERSIST DOWNSTREAM FROM EWD ADVANCING SHORTWAVE TROUGH.
HOWEVER...WIND PROFILES ARE FORECAST TO REMAIN SOMEWHAT
UNIDIRECTIONAL WITH 0-1 KM STORM RELATIVE HELICITY AROUND 150 M2/S2.
SEVERE THREAT WILL GRADUALLY INCREASE AS THE BOUNDARY LAYER
DESTABILIZES WITH BOTH DISCRETE SUPERCELLS AND LINE SEGMENTS LIKELY.
..DIAL.. 04/07/2010
ATTN...WFO...IWX...IND...PAH...LOT...ILX...LSX...
LAT...LON 41208746 40448683 39238729 37938826 37138946 37389019
37999015 39108972 40878946 41208746
