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March 23-24 Severe Threat


Hoosier

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...MIDWEST/OH VALLEY REGION SWD TO THE CENTRAL GULF COAST...

A VERY COMPLEX FORECAST IS AT HAND THIS PERIOD...WITH VERY WEAK

SURFACE FEATURES AND NON-TRIVIAL DIFFERENCES BETWEEN THE GFS AND NAM

REGARDING UPPER LOW TIMING AND LOCATION. WITH SEVERE THREAT ACROSS

THE MIDWEST AND OH VALLEY REGION HIGHLY DEPENDENT ON THE LOCATION OF

THE UPPER COLD POOL...AND THE THREAT FARTHER S DEPENDENT UPON

LOCATION OF THE WEAK SURFACE CONFLUENCE AXIS...MODEL DIFFERENCES

SUBSTANTIALLY COMPLICATE DELINEATING SPECIFIC THREAT AREAS.

CONSIDERING THESE FACTORS...BUT GIVEN BROAD ENVIRONMENTAL CONDITIONS

SUPPORTIVE OF SEVERE POTENTIAL -- I.E. STEEP LAPSE RATES ACROSS THE

MIDWEST AND A MOIST BOUNDARY LAYER ACROSS THE CENTRAL GULF COAST

STATES CONTRIBUTING TO AMPLE INSTABILITY IN BOTH AREAS...ALONG WITH

ENHANCED FLOW ALOFT WITHIN A BROAD ZONE CIRCLING THE UPPER LOW --

WILL INTRODUCE A LARGE/BROAD SLIGHT RISK AREA THIS FORECAST.

ATTM...IT APPEARS THAT ONGOING SHOWERS AND STORMS BENEATH AND AHEAD

OF THE UPPER LOW -- ACROSS THE MID MS AND OH VALLEY AND POSSIBLY THE

TN VALLEY/MID SOUTH AREA -- WILL INCREASE THROUGH THE AFTERNOON AS

MODEST DIURNAL HEATING OCCURS. WITH SHEAR SUPPORTIVE OF ORGANIZED

STORMS AND STEEP LAPSE RATES SPREADING EWD ACROSS THIS AREA...THREAT

FOR HAIL AND LOCALLY DAMAGING GUSTS IS APPARENT...WITH AN ISOLATED

LOW-TOPPED SUPERCELL TORNADO THREAT ALSO POSSIBLE.

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It's funny that IND doesn't even mention severe in their disco, but IWX is worried about dry slot clearing and resulting severe storms

It's probably because of the oddball MI counties in their CWA. I swear the Lakes do their own thing when it comes to storms, quite often the opposite of what is expected.

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There's a pretty wet-looking complex of cells heading towards Fenton over Livingston County... just got a SVR warning on it.

BULLETIN - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI

632 PM EDT THU MAR 22 2012

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

LIVINGSTON COUNTY IN SOUTHEAST MICHIGAN...

NORTH CENTRAL WASHTENAW COUNTY IN SOUTHEAST MICHIGAN...

* UNTIL 730 PM EDT

* AT 630 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE

HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE

LOCATED ALONG A LINE EXTENDING FROM 5 MILES SOUTHEAST OF MORRICE TO

WHITMORE LAKE...AND MOVING NORTHEAST AT 15 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...

OAK GROVE AROUND 640 PM EDT.

COHOCTAH AROUND 645 PM EDT.

DEERFIELD TOWNSHIP AND HARTLAND AROUND 655 PM EDT.

TYRONE TOWNSHIP AROUND 710 PM EDT.

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A lake breeze storm went up over central Wellington County just a clip north of here. Several smaller storms tried their best to develop over me as the Wellington Co storm was in progress. Turned out to be quite an interesting cloud display with multiple towers over the city almost being pulled into the main storm. The winds also increased dramatically going into the storm during the whole event. Lasted about two hours. Don't know the entire process involved in lake breeze storms, but this one was one of the cooler storm days I've seen. There were so many towers over us at one point it looked like late evening. It was like a train of small storms.

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 101

NWS STORM PREDICTION CENTER NORMAN OK

1145 AM CDT FRI MAR 23 2012

THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

CENTRAL AND SOUTHERN ILLINOIS

SOUTHWEST INDIANA

WESTERN KENTUCKY

EXTREME SOUTHEAST MISSOURI

EFFECTIVE THIS FRIDAY MORNING AND EVENING FROM 1145 AM UNTIL 700

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 65

STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES EAST

NORTHEAST OF MATTOON ILLINOIS TO 35 MILES SOUTH SOUTHEAST OF

PADUCAH KENTUCKY. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

DISCUSSION...SEVERAL BANDS OF THUNDERSTORMS HAVE INTENSIFIED THIS

MORNING FROM EXTREME SERN MO INTO WRN KY AND SRN IL...IN ADVANCE OF

AN EWD MOVING UPPER LOW OVER MO. ZONES OF CLEAR SKIES WILL PERMIT

STRONGER HEATING/DESTABILIZATION AHEAD OF THE KY/SRN IL STORMS...AND

STRONG DYNAMIC FORCING FOR LARGE SCALE ASCENT WILL ENHANCE SEVERE

STORM POTENTIAL THROUGH THE AFTERNOON HOURS. LARGE HAIL AND

OCCASIONAL STRONG WIND GUSTS WILL BE PRODUCED BY STRONGER

CELLS...ALTHOUGH AN ISOLATED BRIEF TORNADO MAY ALSO BE POSSIBLE WITH

ANY PERSISTENT SUPERCELL THAT FORMS.

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 500. MEAN STORM

MOTION VECTOR 20025.

http://kamala.cod.edu/SPC/

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PAH

* TORNADO WARNING FOR...

SOUTHEASTERN JACKSON COUNTY IN SOUTHERN ILLINOIS...

* UNTIL 1215 PM CDT.

* AT 1147 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS

STORM WAS LOCATED NEAR GRAND TOWER...OR 11 MILES SOUTHWEST OF

MURPHYSBORO...AND MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IN THE WARNED AREA INCLUDE...

MURPHYSBORO AND CARBONDALE.

post-1873-0-08745600-1332522132.jpg

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE PADUCAH KY

1208 PM CDT FRI MAR 23 2012

.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON

.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.

..REMARKS..

1133 AM TORNADO 1 W NEELYS LANDING 37.50N 89.52W

03/23/2012 CAPE GIRARDEAU MO FIRE DEPT/RESCUE

FIRE DEPARTMENT REPORTS POSSIBLE BRIEF TORNADO TOUCHDOWN

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE PADUCAH KY

1245 PM CDT FRI MAR 23 2012

.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON

.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.

..REMARKS..

1242 PM TORNADO 2 E DU QUOIN 38.00N 89.20W

03/23/2012 PERRY IL TRAINED SPOTTER

BRIEF ROPE TORNADO TOUCHDOWN AND GOLF BALL SIZE HAIL

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE PADUCAH KY

1237 PM CDT FRI MAR 23 2012

.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON

.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.

..REMARKS..

1232 PM TORNADO 3 NW CARBONDALE 37.76N 89.26W

03/23/2012 JACKSON IL TRAINED SPOTTER

JUST NORTH OF SIU CARBONDALE AIRPORT. BRIEF TOUCHDOWN AND IT WENT BACK UP.

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE PADUCAH KY

1234 PM CDT FRI MAR 23 2012

.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON

.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.

..REMARKS..

1230 PM TORNADO DOWELL 37.94N 89.24W

03/23/2012 JACKSON IL EMERGENCY MNGR

BRIEF TOUCHDOWN JUST OUTSIDE THE CITY LIMITS OF DOWELL. IT TOUCHED DOWN AND THEN WENT BACK UP INTO THE CLOUDS.

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PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE PADUCAH KY

1231 PM CDT FRI MAR 23 2012

.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON

.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.

..REMARKS..

1230 PM TORNADO ELKVILLE 37.91N 89.24W

03/23/2012 JACKSON IL PUBLIC

PUBLIC REPORT RELAYED BY LAW ENFORCEMENT OF A TORNADO NEAR TRUAX AND TRAYER ROAD.

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SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE PADUCAH KY

1249 PM CDT FRI MAR 23 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN FRANKLIN AND SOUTHEASTERN PERRY COUNTIES IN SOUTH CENTRAL ILLINOIS...AND NORTHEASTERN JACKSON COUNTY IN SOUTHERN ILLINOIS UNTIL 100 PM CDT...

AT 1246 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO. THIS TORNADO WAS LOCATED NEAR DU QUOIN...MOVING NORTHEAST AT 25 MPH. THERE HAVE BEEN NUMEROUS REPORTS OF TORNADO TOUCH DOWNS AND FUNNEL CLOUDS WITH THIS STORM.

IN ADDITION...GOLF BALL WAS REPORTED IN DU QUOIN WITH THIS STORM.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE PADUCAH KY

1255 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...

NORTHWESTERN FRANKLIN COUNTY IN SOUTH CENTRAL ILLINOIS...

SOUTHWESTERN JEFFERSON COUNTY IN SOUTH CENTRAL ILLINOIS...

NORTHEASTERN PERRY COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 130 PM CDT.

* AT 1250 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR DU QUOIN...AND MOVING NORTH AT 35 MPH. THERE HAVE BEEN NUMEROUS REPORTS OF BRIEF TORNADO TOUCH DOWNS AND FUNNEL CLOUDS WITH THIS STORM. DAMAGE WAS REPORTED NEAR DESOTO.

* LOCATIONS IN THE WARNED AREA INCLUDE...

TAMAROA AND WALTONVILLE.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE PADUCAH KY

1255 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...

NORTHWESTERN FRANKLIN COUNTY IN SOUTH CENTRAL ILLINOIS...

SOUTHWESTERN JEFFERSON COUNTY IN SOUTH CENTRAL ILLINOIS...

NORTHEASTERN PERRY COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 130 PM CDT.

* AT 1250 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR DU QUOIN...AND MOVING NORTH AT 35 MPH. THERE HAVE BEEN NUMEROUS REPORTS OF BRIEF TORNADO TOUCH DOWNS AND FUNNEL CLOUDS WITH THIS STORM. DAMAGE WAS REPORTED NEAR DESOTO.

* LOCATIONS IN THE WARNED AREA INCLUDE...

TAMAROA AND WALTONVILLE.

post-1873-0-37484900-1332526191.jpg

post-1873-0-96578700-1332526247.jpg

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE PADUCAH KY

129 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...

JEFFERSON COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 215 PM CDT.

* AT 126 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 2 MILES EAST OF OPDYKE. DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTH AT 25 MPH. A SECOND STORM WAS DETECTED WEST OF MOUNT VERNON...WHICH IS CAPABLE OF PRODUCING A TORNADO.

* LOCATIONS IN THE WARNED AREA INCLUDE...

MOUNT VERNON...WOODLAWN...BLUFORD AND DIX.

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from earlier

BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE LOUISVILLE KY

218 PM EDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...

EASTERN JEFFERSON COUNTY IN NORTH CENTRAL KENTUCKY...

* UNTIL 245 PM EDT...

* AT 217 PM EDT...THE PUBLIC REPORTED A TORNADO NEAR FERN CREEK...MOVING NORTHEAST AT 25 MPH.

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The environment downstream in central/southern Indiana may remain somewhat favorable for brief tornadoes.  LCL's aren't unreasonably high in much of the area, although low level flow a bit weaker than farther west which could reduce the threat.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE LINCOLN IL

208 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...

CLAY COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 245 PM CDT.

* AT 203 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A CONFIRMED TORNADO 3 MILES EAST OF IUKA...OR 12 MILES SOUTHWEST OF FLORA. DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTHEAST AT 35 MPH. THIS STORM HAS A LONG HISTORY OF PRODUCING BRIEF TORNADO TOUCHDOWNS AND FUNNEL CLOUDS...AS WELL AS HAIL THE SIZE OF GOLF BALLS.

* LOCATIONS IMPACTED INCLUDE...

FLORA...XENIA...LOUISVILLE AND OSKALOOSA.

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