Tornado Warning 8, NWS Chicago, IL

566 
WWUS53 KLOT 010307
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1007 PM CDT MON JUN 30 2014

ILC031-197-010330-
/O.CON.KLOT.TO.W.0008.000000T0000Z-140701T0330Z/
WILL IL-COOK IL-
1007 PM CDT MON JUN 30 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL COOK AND
NORTH CENTRAL WILL COUNTIES UNTIL 1030 PM CDT...

AT 1005 PM CDT...A SEVERE SQUALL LINE CAPABLE OF PRODUCING TORNADOES
THAT MAY NOT BE VISIBLE DUE TO HEAVY RAIN WAS LOCATED NEAR
LOCKPORT...AND MOVING EAST AT 55 MPH.

HAZARD...TORNADO.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

THIS DANGEROUS STORM WILL BE NEAR...
  TINLEY PARK AND ORLAND PARK AROUND 1015 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE PALOS PARK...ORLAND HILLS...
PALOS HEIGHTS AND FRANKFORT SQUARE.

82 MPH WINDS WERE MEASURED IN BOLINGBROOK AS THE STORMS MOVED 
THROUGH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4145 8781 4154 8814 4155 8815 4171 8813
      4170 8803 4168 8802 4169 8796 4167 8775
TIME...MOT...LOC 0307Z 278DEG 48KT 4160 8796



TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

IZZI

111 
WWUS53 KLOT 010318
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1018 PM CDT MON JUN 30 2014

ILC031-197-010330-
/O.CON.KLOT.TO.W.0008.000000T0000Z-140701T0330Z/
WILL IL-COOK IL-
1018 PM CDT MON JUN 30 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL COOK AND
CENTRAL WILL COUNTIES UNTIL 1030 PM CDT...

AT 1016 PM CDT...A SEVERE SQUALL LINE CAPABLE OF PRODUCING TORNADOES
THAT MAY NOT BE VISIBLE DUE TO HEAVY RAIN WAS LOCATED NEAR MOKENA...
AND MOVING EAST AT 50 MPH.

HAZARD...TORNADO.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

THIS DANGEROUS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND 
DAMAGE WITH WIND GUSTS IN EXCESS OF 80 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4150 8801 4168 8792 4167 8775 4145 8781
TIME...MOT...LOC 0318Z 278DEG 42KT 4157 8785



TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

IZZI

245 
WWUS53 KLOT 010327
SVSLOT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1027 PM CDT MON JUN 30 2014

ILC031-197-010337-
/O.EXP.KLOT.TO.W.0008.000000T0000Z-140701T0330Z/
WILL IL-COOK IL-
1027 PM CDT MON JUN 30 2014


...THE TORNADO WARNING FOR SOUTH CENTRAL COOK AND CENTRAL WILL
COUNTIES WILL EXPIRE AT 1030 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA. WINDS IN EXCESS OF 60 MPH ARE STILL POSSIBLE.

LAT...LON 4150 8801 4168 8792 4167 8775 4145 8781
TIME...MOT...LOC 0327Z 278DEG 42KT 4155 8771


$$

IZZI

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
851 PM CDT MON JUN 30 2014

.MESOSCALE DISCUSSION...
850 PM

HAVE COORDINATED WITH THE STORM PREDICTION CENTER AND WILL LIKELY BE
ISSUING A NEW SEVERE THUNDERSTORM WATCH ACROSS THE AREA FOR SECOND
LINE OF AGGRESSIVE STORMS.

REGARDING FLASH FLOODING THREAT...THE NEXT LINE OF STRONG TO SEVERE
STORMS IS MOVING EAST-SOUTHEAST ACROSS NORTH CENTRAL AND WEST
CENTRAL ILLINOIS. THIS IS ON A SUSTAINED COLD POOL THAT HAS
DEVELOPED AHEAD OF THE COLD FRONT. VERY HIGH ABSOLUTE MOISTURE
CONTENT /PWATS OF 1.75+ INCHES/ AND CONTINUED REPLENISHMENT ON
A LOW-LEVEL JET WILL SUSTAIN HEAVY RAINFALL RATES OF ONE TO TWO
INCHES PER 30 TO 60 MINUTES AS THIS COMPLEX MOVES EASTWARD. IN
ADDITION...SEEING SIGNS OF A MESOSCALE WARM-AIR ADVECTION WING
WITH SCATTERED CELLS ACROSS DEKALB AND KANE COUNTIES. THIS COULD
MEAN A STRONGER SIGNAL FOR WEST-TO-EAST ORIENTED CONVECTION WHICH
WOULD FAVOR POSSIBLE FLASH FLOODING POTENTIALLY NEAR THE
INTERSTATE 88 CORRIDOR...AND POSSIBLY INTO PARTS OF THE CHICAGO
METRO. THIS IS ESPECIALLY TRUE CONSIDERING THE EARLIER RAINFALL
TODAY AS WELL AS THE ANTECEDENT WET CONDITIONS IN THE PAST TWO
WEEKS. WILL BE MONITORING CLOSELY AND IF 1. A QUICKER FORWARD
PROPAGATION TO THE COMPLEX IS NOT SEEN AND 2. REPORTS OF FLASH
FLOODING ARE RECEIVED ACROSS WINNEBAGO...OGLE...AND LEE
COUNTIES...THEN WILL LIKELY NOT WAIT LONG FOR FLASH FLOOD WARNING
ISSUANCES FURTHER EAST/SOUTHEAST.

MTF

&&

.DISCUSSION...
117 PM CDT

THIS EVENING/OVERNIGHT...
MAIN CONCERN FOR THIS EVENING THROUGH MIDNIGHT WILL BE ON SEVERE
WEATHER TIMING/COVERAGE/INTENSITY. THE SPC HAS EXPANDED THE ENTIRE
FORECAST AREA INTO THE MODERATE RISK FOR SEVERE WEATHER TODAY...WITH
THE FOCUS BEING ON DAMAGING WINDS IN EXCESS OF 70MPH AND LARGE HAIL.
GIVEN THE HIGH DEW POINTS...AND PWAT VALUES ARND 1.5 TO
1.75"...WHATEVER CONVECTION OCCURS COULD BE VERY EFFICIENT AT
PRODUCING TORRENTIAL DOWNPOURS AND AS SUCH WOULD INTRODUCE A
FLOODING CONCERN DESPITE STORMS FORWARD PROPAGATION. WHILE THE
PROBABILITY IS NOT ZERO FOR AN ISOLATED TORNADO...THE GREATEST FOCUS
FOR THIS WILL BE WELL WEST OF THE FORECAST AREA IN IOWA. IF WINDS
CAN BACK TO THE SOUTHEAST HOWEVER...THIS WOULD INTRODUCE INCREASED
HELICITY TO THE AREA.

THE FOCAL POINT FOR CONVECTION HAS BEEN ON THE ACTIVITY PRESENTLY
ONGOING IN EASTERN NEBRASKA/WESTERN IOWA. VISIBLE IMAGERY HAS A
BOUNDARY DEPICTED ACROSS SOUTHWEST IOWA STRETCHING EAST TO JUST
SOUTH OF MOLINE THEN TURNING SOUTHEAST ACROSS SOUTH CENTRAL IL TO
JUST SOUTH OF TERRE HAUTE IN. ALONG AND SOUTH OF THIS BOUNDARY DEW
PTS ARE GENERALLY IN THE LOW/MID 70S...WHILE TO THE NORTH DEW POINTS
ARE IN THE UPR 60S. THE EXCEPTION IS OVER THE SOUTHERN CWFA WHERE
DEW POINTS HAVE BEEN ABLE TO BUMP BACK INTO THE LOW 70S WITH A
SOUTHERLY WIND. THE WINDS ARE BACKED TO THE SOUTHEAST/EAST EARLY
THIS AFTN OVER SOUTH CENTRAL IOWA...AND WITH THE CIRRUS SHIELD
BEGINNING TO THIN OVER EASTERN IOWA EARLY THIS AFTN...THE ATMOSPHERE
SHUD ONLY FURTHER DESTABILIZE.

HI-RES GUIDANCE CONTINUES TO FOCUS A LINE SEGMENT PUSHING INTO
EASTERN IOWA BY 20-22Z...THEN THERE IS SOME SLIGHT DIFFERENCES ON
HOW THIS FEATURE ARRIVES ACROSS NORTHERN IL/NORTHWEST IN ALONG WITH
TIMING. NONETHELESS...GIVEN THE AFOREMENTIONED BUOYANT ATMOSPHERE
AND UNIDIRECTIONAL MEAN LAYER FLOW...IT DOES SUPPORT THIS LINE OF
CONVECTION THAT ARRIVES ACROSS FAR WESTERN/NORTHWESTERN IL TO MORPH
INTO A BOWING SEGMENT AND POSSIBLY TRANSITION INTO A DERECHO TYPE
EVENT...WHICH WOULD LIKELY BEGIN TO TURN SOUTHEAST ACROSS THE
FORECAST AREA THIS EVENING.

ACTIVITY LEVEL SHOULD QUICKLY LEVEL OFF LATER THIS EVENING...WITH
THE TIMING TO HAVE PUSHED THRU THE CWFA BEFORE MIDNIGHT. THEN THE
DRY SLOT ARRIVES...HOWEVER HAVE OPTED TO HOLD ONTO SOME LINGERING
SHRA/TSRA OVERNIGHT. CONFIDENCE IS RATHER LOW THAT ANY ACTIVITY WILL
BE REMAINING...SO THIS MAY BE ABLE TO BE REMOVED LATER THIS EVENING
AND GO WITH A DRY OVERNIGHT.

TUESDAY THROUGH THURSDAY...
LEADING VORT WILL PIVOT EAST OF THE REGION EARLY TUE...WITH THE DRY
SLOT STILL BEING PROGGED TO KEEP DRY CONDS OVER THE FORECAST AREA
THRU THE BULK OF THE DAY TUE. BY MID/LATE AFTN THE MID-LVL TROUGH
AXIS APPROACHES FROM THE NORTHWEST...AND WITH ANY SFC
DESTABILIZATION...A FEW ISO TSRA COULD DEVELOP FROM THE STEEP LAPSE
RATES AND COOLING IN THE MID-LVLS. WITH THE FLOW REMAINING
PROGRESSIVE...THE TROUGH AXIS SLIDES OVERHEAD BY 03Z WED AND SHUD
BRING A QUICK END TO ANY DIURNALLY DRIVEN SHRA/TSRA ACROSS THE CWFA
WITH A DRY OVERNIGHT PERIOD. GUIDANCE IS ALSO INDICATING A TRAILING
WEAK TROUGH SLIDING INTO THE CENTRAL PLAINS WED MORNING...WITH AN
ABUNDANCE OF LOW/MID LVL MOISTURE WRAPPING AROUND THE WESTERN GREAT
LAKES REGION. THIS WILL LIKELY BRING A CHC FOR LIGHT SHOWERS FOR
WED. WITH CONSIDERABLE SOLAR SHIELDING WED...AND A THERMAL TROUGH OF
6 TO 8 DEG C OVERHEAD...TEMPS COULD STRUGGLE TO WARM BEYOND 70-74
FOR NORTHERN IL/NORTHWEST IN. IT IS PLAUSIBLE THAT A FEW POINTS IN
FAR NORTHERN IL THAT REMAIN IN THE UPR 60S WED AFTN.

BROAD TROUGH THEN PUSHES EAST WED NGT...WITH SFC ANTI-CYCLONIC
FEATURE BUILDING IN FROM THE WEST. THIS FEATURE WILL HELP TO DRY THE
LOW-LEVELS OUT AND ALLOW WINDS TO TURN NORTHWEST TO NORTH. THEN FOR
THUR THE NORTHERLY DRY FLOW WILL BRING SUNNY SKIES WITH TEMPS
GENERALLY IN THE 70S. A LAKE BREEZE LOOKS LIKELY AND COULD KEEP ON
ONSHORE FLOW FOR THE ADJACENT LAKE SHORE COMMUNITIES AND TEMPS IN
THE 60S.

CONFIDENCE...HIGH.

FRIDAY THROUGH MONDAY...
ENSEMBLES CONTINUE TO PROG A RIDGE ACROSS THE CANADIAN ROCKIES FOR
THE END OF THE WORK WEEK...ALLOWING A DOWNSTREAM TROUGH TO BE OVER
THE GREAT LAKES/NORTHEAST CONUS. AS THE WEEKEND PROGRESSES THE WAVE
WILL BEGIN TO RELAX...ALTHOUGH THE MID-LVL TROUGH WILL DRIFT EAST BY
SAT/SUN OVER THE UPPER MIDWEST/NORTH OF LAKE SUPERIOR. THIS SHUD
ALLOW TEMPS TO SLOWLY RETURN TO NEAR SEASONAL CONDS. ALTHOUGH AS THE
WEEKEND PROGRESSES...THE LONG WAVE PATTERN DOES TRANSITION INTO A
SEMI-ZONAL FLOW WITH HEIGHTS STEADILY INCREASING ACROSS THE ENTIRE
CONUS. TEMPS FOR FRI SHUD CONTINUE TO BE SUB-SEASONAL IN THE 70S
NEAR 80...THEN BACK TO ARND 80 OR LOW 80S FOR THE WEEKEND. EARLY
NEXT WEEK THE PATTERN DOES APPEAR TO POINT TOWARDS TEMPS RETURNING
TO LOW/MID 80S. IN ADDITION TO THE SEMI-ZONAL FLOW...IT DOES SUPPORT
A QUICK WEST-EAST FLOW OF WEAK WAVES. THIS COULD EASILY BRING A LOW
CHC POPS FOR THE WEEKEND/EARLY NEXT WEEK.

CONFIDENCE...HIGH.

BEACHLER

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 00Z...

* LINE OF THUNDERSTORMS MOVING THROUGH THE TERMINALS. SECONDARY LINE
  OVER IOWA TO FOLLOW LATER THIS EVENING.  ETA ON THAT LINE IS
  02-04Z.

* POTENTIAL FOR WINDS TO GUST UP TO 45 KT WITH LEADING EDGE OF THE
  CURRENT INITIAL LINE.

* POSSIBLE BRIEF IFR VSBYS UNDER HEAVIEST THUNDERSTORM. POOREST
  CONDITIONS LAST 20-30 MINUTES. RAIN AND OCCASIONAL THUNDER FOR
  ANOTHER 1-2 HOURS AFTER THAT... AND BEFORE THE SECOND LINE OF
  STORMS.

* GREATLY DISTURBED WIND FIELD FOLLOWING THE INITIAL LINE OF
  STORMS SHOULD TREND EAST AND THEN SOUTHEAST AHEAD OF SECOND LINE.

* WINDS BECOME NORTHWEST BEHIND SECOND LINE BEFORE REESTABLISHING
  SOUTHWEST OVERNIGHT.

ED F

//DISCUSSION...UPDATED 00Z...

LINEAR LINE OF STORMS CURRENTLY MOVING THROUGH SHOWING SOME UPTICK AS
IT MOVES INTO THE METRO AREA.  LEADING EDGE GUSTS RUNNING 35-40 KTS
PER UPSTREAM GROUND TRUTH.  LOWERING OF CIGS/VSBYS TO UNDER 1 MILE
EXPECTED AS 20-30 MINUTE PERIOD OF HEAVY RAIN WITH THUNDER MOVES
THROUGH THE TERMINALS ALONG WITH POTENTIAL FOR GUSTS OF 45 KTS.

PERIOD OF RAIN WITH EMBEDDED THUNDER FOLLOWS INITIAL LINE FOR 1-2
HOURS AS WINDS BECOME DISTURBED FROM LINE OF STORMS AND TURNS MORE
NE TO EAST.  SECOND LINE OF STORMS CURRENTLY OVER EASTERN IOWA HAS
BECOME BETTER ORGANIZED DURING THE PAST 30-60 MINUTES AND IS POISED
TO MOVE ACROSS THE TERMINALS BETWEEN THE 02Z-04Z TIME FRAME.  EXPECT
ANOTHER ROUND OF DISRUPTIVE STORMS WITH THIS LINE AND WILL REFINE
IT'S TIMING IN THE COMING HOUR.

WINDS WILL BECOME SOUTHEAST AHEAD OF THE SECOND LINE OF STORMS
BEFORE TURNING NORTHWEST AS THE LINE MOVES THROUGH. ANOTHER BRIEF
PERIOD OF IFR CIGS AND VSBYS EXPECTED FOR 20-30 MINUTES WITH THE
SECOND LINE AS WINDS AGAIN TURN NORTHWEST WITH THE LINE AND FOR A
SHORT TIME FOLLOWING.

ED F

//ORD AND MDW CONFIDENCE...UPDATED 00Z...

* LOW CONFIDENCE OF WIND FORECAST WITH WINDS DISTURBED BY
  THUNDERSTORMS THROUGH 05Z.

* MEDIUM TO HIGH CONFIDENCE IN THUNDERSTORM FORECAST TRENDS

ED F

//OUTLOOK FOR ORD/MDW FOR 12Z WEDNESDAY-12Z MONDAY...UPDATED 00Z...

WEDNESDAY...VFR CHANCE OF SHRA.

THURSDAY...VFR DRY.

FRIDAY...VFR DRY.

SATURDAY...VFR DRY.

SUNDAY...SLGT CHANCE OF TSRA.

ED F

&&

.MARINE...
303 PM CDT

PRIMARY MARINE CONCERN IS OVER THE NEARSHORE WATERS AND SOUTH HALF
THIS EVENING AS AN INTENSE COMPLEX OF THUNDERSTORMS LIKELY HOLDS
TOGETHER AND BRINGS A PERIOD OF DANGEROUSLY STRONG WINDS AND
FREQUENT LIGHTNING. HAVE LEFT THE DENSE FOG ADVISORY FOR THE NORTH
HALF UNTIL THIS EVENING. BEFORE CLOUDS MOVED OVERHEAD...VISIBLE
SATELLITE SHOWED A BANK OF FOG COVERING MUCH OF THE NORTHERN PART
OF THE LAKE. SYNOPTIC SOUTHERLY WINDS STILL MAY BECOME STRONG
ENOUGH FOR SMALL CRAFT CRITERIA THIS EVENING IN THE NEARSHORE BUT
DO NOT HAVE ENOUGH CONFIDENCE TO HOIST AN ADVISORY.

HAVE BETTER CONFIDENCE IN SMALL CRAFT WIND CRITERIA BEING MET ON
TUESDAY. TIGHT PRESSURE GRADIENT AND DEEP MIXING FROM LAND WILL
LIKELY RESULT IN WEST-SOUTHWEST WINDS AROUND 20 KT AND FREQUENT
GUSTS TO 25 KT OR EVEN A BIT HIGHER LATE TUESDAY MORNING THROUGH
LATE TUESDAY AFTERNOON. HAVE SOME CONCERN THAT GUSTY WINDS MAY
EXTEND A BIT INTO TUESDAY EVENING. HIGH PRESSURE WILL SPREAD OVER
THE LAKE THURSDAY INTO FRIDAY AND ONLY SLOWLY MOVE EASTWARD ON
SATURDAY. AN FAIRLY EXTENDED PERIOD OF LIGHT WINDS WITH DIRECTIONS
NEAR THE SHORES CONTROLLED BY LAKE BREEZE INFLUENCES BY DAY WILL
ENSUE WEDNESDAY NIGHT THROUGH AT LEAST FRIDAY NIGHT. MODEST
SOUTHERLY WINDS WILL DEVELOP ON SATURDAY AS THE HIGH SLIDES EAST.

RC

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...FLASH FLOOD WATCH...ILZ003-ILZ004-ILZ005-ILZ006-ILZ008-ILZ010-
     ILZ011-ILZ012-ILZ013-ILZ014-ILZ019-ILZ020-ILZ021-ILZ022-
     ILZ023-ILZ032 UNTIL 4 AM TUESDAY.

IN...FLASH FLOOD WATCH...INZ001-INZ002 UNTIL 4 AM TUESDAY.

LM...DENSE FOG ADVISORY...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
     LMZ567-LMZ868 UNTIL 9 PM MONDAY.

     SMALL CRAFT ADVISORY...LMZ740-LMZ741-LMZ742-LMZ743-LMZ744-
     LMZ745...9 AM TUESDAY TO 7 PM TUESDAY.

&&

VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE)

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WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
328 PM CDT MON JUN 30 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
012030-
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
328 PM CDT MON JUN 30 2014 /428 PM EDT MON JUN 30 2014/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

  SEVERE THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:

  WIND GUSTS IN EXCESS OF 70 MPH.
  ISOLATED GUSTS IN EXCESS OF 90 MPH.
  POSSIBLY A TORNADO.
  HAIL UP TO 2 INCHES IN DIAMETER.
  TORRENTIAL RAINFALL AND LOCALIZED FLOODING.
  FREQUENT CLOUD TO GROUND LIGHTNING.

  AREAS AFFECTED AND TIMING:

  A LINE OF THUNDERSTORMS HAS ALREADY DEVELOPED OVER EAST CENTRAL
  IOWA AND IS EXPECTED TO ARRIVE OVER NORTHERN ILLINOIS AROUND
  530PM CDT AND CONTINUE TO PUSH EAST NEARING NORTHWEST INDIANA
  BY 7 PM CDT. SOME OF THESE STORMS MAY BE SEVERE AND MAY ALSO
  PRODUCE LOCALLY HEAVY RAINFALL THIS EVENING. THUNDERSTORMS
  WILL THEN DIMINISH AND GRADUALLY MOVE EAST OF THE AREA LATER
  THIS EVENING.

  DISCUSSION:

  THE COMBINATION OF STRONG INSTABILITY...STRONG WINDS ALOFT...
  AND THE APPROACHING LOW PRESSURE IS EXPECTED TO RESULT IN
  SEVERE THUNDERSTORMS ARRIVING IN WEST CENTRAL ILLINOIS THIS
  AFTERNOON. THESE STORMS WILL SPREAD EAST INTO NORTHERN ILLINOIS
  AND NORTHWEST INDIANA THROUGH THE EVENING HOURS.
  THE LINE OF STORMS IS EXPECTED TO DEVELOP INTO AN EASTWARD
  MOVING COMPLEX WITH A SIGNIFICANT POTENTIAL FOR DAMAGING WINDS
  ACROSS NORTHERN ILLINOIS AND NORTHWEST INDIANA THIS EVENING.
  WIND GUSTS IN EXCESS OF 70 MPH...WITH AN ISOLATED GUST IN EXCESS
  OF 90 MPH POSSIBLE.

PORTIONS OF THE KANKAKEE RIVERS WILL REMAIN IN FLOOD. OTHER AREA
STREAMS WILL REMAIN NEAR BANKFULL CONDITIONS...HOWEVER WITH
ADDITIONAL RAINFALL EXPECTED A FEW SITES MAY APPROACH FLOOD STAGE AGAIN.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY.

PORTIONS OF THE KANKAKEE RIVERS WILL REMAIN IN FLOOD. OTHER AREA
STREAMS WILL REMAIN NEAR BANKFULL CONDITIONS...HOWEVER WITH
ADDITIONAL
RAINFALL A FEW SITES MAY APPROACH FLOOD STAGE AGAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON THROUGH THIS EVENING.

&&

LMZ740>745-012030-
WINTHROP HARBOR TO WILMETTE HARBOR-
WILMETTE HARBOR TO NORTHERLY ISLAND-
NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY-
GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-
328 PM CDT MON JUN 30 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...TONIGHT.

THUNDERSTORMS ARE LIKELY THIS EVENING THROUGH TONIGHT...WITH SEVERE
THUNDERSTORMS POSSIBLE DURING THE EVENING. WIND GUSTS IN EXCESS OF
60 KNOTS WILL BE POSSIBLE THIS EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

GUSTY WEST WINDS MAY PRODUCE HAZARDOUS CONDITIONS FOR SMALL
CRAFT ON TUESDAY.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-012030-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH
FOX ISLAND 5 NM OFFSHORE-
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE
TO MID LAKE-
LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
328 PM CDT MON JUN 30 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...TONIGHT.

THUNDERSTORMS...SOME OF WHICH MAY BE SEVERE...ARE EXPECTED
OVER MUCH OF THE LAKE LATER THIS AFTERNOON AND TONIGHT.
WIND GUSTS IN EXCESS OF 60 KNOTS WILL BE POSSIBLE.

PATCHY DENSE FOG IS POSSIBLE ACROSS THE NORTHERN HALF OF THE
LAKE THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

PATCHY DENSE FOG MAY LINGER MAINLY ACROSS NORTHERN LAKE
MICHIGAN THROUGH TUESDAY.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY.

&&

BEACHLER

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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
936 PM CDT MON JUN 30 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0908 PM     TSTM WND DMG     AMBOY                   41.72N 89.33W
06/30/2014                   LEE                IL   TRAINED SPOTTER

            NUMEROUS TREES DOWN. GUSTS WERE MEASURED AT 57 MPH. ALSO
            HAD PEA SIZE HAIL.

&&

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PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
938 PM CDT MON JUN 30 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0912 PM     TSTM WND DMG     UTICA                   41.34N 89.01W
06/30/2014                   LA SALLE           IL   PUBLIC

            ON E 11TH RD - MULTIPLE TREES UPROOTED RANGING IN DIAMTER
            FROM 12 TO 36 INCHES.

0908 PM     TSTM WND DMG     AMBOY                   41.72N 89.33W
06/30/2014                   LEE                IL   TRAINED SPOTTER

            NUMEROUS TREES DOWN. GUSTS WERE MEASURED AT 57 MPH. ALSO
            HAD PEA SIZE HAIL.

0907 PM     HAIL             AMBOY                   41.72N 89.33W
06/30/2014  E0.88 INCH       LEE                IL   TRAINED SPOTTER

            PEA TO NICKEL SIZE HAIL.

0852 PM     TSTM WND DMG     AMBOY                   41.72N 89.33W
06/30/2014                   LEE                IL   TRAINED SPOTTER

            TREES DOWN.

0845 PM     TSTM WND GST     ROCKFORD AIRPORT        42.20N 89.10W
06/30/2014  M56.00 MPH       WINNEBAGO          IL   ASOS

0837 PM     HEAVY RAIN       3 SW MIDWAY AIRPORT     41.75N 87.79W
06/30/2014  M1.54 INCH       COOK               IL   CO-OP OBSERVER

            STORM TOTAL FOR TODAY. 1.29 INCHES THIS MORNING.

0835 PM     TSTM WND DMG     VALPARAISO              41.48N 87.05W
06/30/2014                   PORTER             IN   PUBLIC

            1 TO 3 INCH DIAMETER BRANCHES DOWN. NEAR INDIANA ROUTE
            130.

0823 PM     HAIL             GRANT PARK              41.24N 87.64W
06/30/2014  E1.00 INCH       KANKAKEE           IL   AMATEUR RADIO

            NEAR 6500 AND VINCENT.

0821 PM     TSTM WND GST     1 W DE KALB             41.93N 88.77W
06/30/2014  E50.00 MPH       DE KALB            IL   TRAINED SPOTTER

            0.79 INCHES OF RAIN FELL IN 20 MINUTES.

0820 PM     TSTM WND DMG     TINLEY PARK             41.57N 87.80W
06/30/2014                   COOK               IL   PUBLIC

            SHINGLES BLOWN OFF ROOF.

0820 PM     TSTM WND GST     CHESTERTON              41.60N 87.06W
06/30/2014  E65.00 MPH       PORTER             IN   TRAINED SPOTTER

0815 PM     TSTM WND DMG     MOKENA                  41.53N 87.88W
06/30/2014                   WILL               IL   PUBLIC

            TREES DOWN ALONG WITH POWER LINES. LIGHTNING COULD HAVE
            STRARTED A FIRE.

0814 PM     HEAVY RAIN       PEOTONE                 41.33N 87.80W
06/30/2014  M0.50 INCH       WILL               IL   TRAINED SPOTTER

            RAIN FALL IN 20 MINUTES.

0811 PM     TSTM WND DMG     MUNSTER                 41.55N 87.50W
06/30/2014                   LAKE               IN   AMATEUR RADIO

            AT CALUMET AND RIDGE. 7 INCH TO 8 INCH TREES DOWN. ON
            RIDGE - 24 INCH DIAMETER TREE SPLIT IN HALF BY STRAIGHT
            LINE WINDS.

0811 PM     TSTM WND GST     CHESTERTON              41.60N 87.06W
06/30/2014  M65.00 MPH       PORTER             IN   TRAINED SPOTTER

            AT IN-49 AND PORTER AVENUE.

0804 PM     TSTM WND DMG     HAMMOND                 41.62N 87.49W
06/30/2014                   LAKE               IN   TRAINED SPOTTER

            6400 BLOCK OF VAN BUREN - TREE DOWN ON HOUSE WITH POWER
            LINES AFFECTED.

0803 PM     TSTM WND GST     2 S CEDAR LAKE          41.34N 87.44W
06/30/2014  E45.00 MPH       LAKE               IN   PUBLIC

0800 PM     TSTM WND GST     STREATOR                41.13N 88.83W
06/30/2014  E50.00 MPH       LA SALLE           IL   PUBLIC

0752 PM     HEAVY RAIN       DYER                    41.50N 87.51W
06/30/2014  E1.10 INCH       LAKE               IN   PUBLIC

0745 PM     TSTM WND GST     HIGHLAND                41.55N 87.46W
06/30/2014  E66.00 MPH       LAKE               IN   TRAINED SPOTTER

0743 PM     TSTM WND GST     2 W KANKAKEE            41.12N 87.90W
06/30/2014  E50.00 MPH       KANKAKEE           IL   TRAINED SPOTTER

0742 PM     TSTM WND DMG     FRANKFORT               41.50N 87.84W
06/30/2014                   WILL               IL   AMATEUR RADIO

            METAL FENCE BLOWN DOWN.

0740 PM     TSTM WND DMG     FRANKFORT               41.50N 87.84W
06/30/2014                   WILL               IL   AMATEUR RADIO

            NEAR ST. FRANCIS AND HARLEM. 4 INCH DIAMETER TREE
            SNAPPED.

0738 PM     TSTM WND DMG     MUNSTER                 41.55N 87.50W
06/30/2014                   LAKE               IN   AMATEUR RADIO

            RIDGE ROAD AND COLUMBIA. 12 INCH DIAMETER LIGHT POLE IS
            BLOWN DOWN ACROSS RIDGE ROAD.

0735 PM     TSTM WND GST     3 SW MIDWAY AIRPORT     41.75N 87.79W
06/30/2014  M50.00 MPH       COOK               IL   CO-OP OBSERVER

0735 PM     TSTM WND GST     HARVEY                  41.61N 87.65W
06/30/2014  M64.00 MPH       COOK               IL   TRAINED SPOTTER

            2 TO 3 INCH DIAMETER TREE LIMBS DOWN.

0732 PM     HEAVY RAIN       3 SW MIDWAY AIRPORT     41.75N 87.79W
06/30/2014  M1.18 INCH       COOK               IL   CO-OP OBSERVER

            RAINFALL IN 13 MINUTES.

0730 PM     TSTM WND DMG     OTTAWA                  41.35N 88.84W
06/30/2014                   LA SALLE           IL   PUBLIC

            12 INCH DIAMETER TREE BRANCHES DOWN.

0730 PM     HEAVY RAIN       YORKVILLE               41.64N 88.45W
06/30/2014  M0.47 INCH       KENDALL            IL   CO-OP OBSERVER

            RAIN FELL IN 45 MINUTES.

0730 PM     HEAVY RAIN       LA GRANGE               41.81N 87.87W
06/30/2014  M1.10 INCH       COOK               IL   AMATEUR RADIO

            NEAR JOLIET AND BRAINARD. RAIN FELL IN 30 MINUTES.

0729 PM     HEAVY RAIN       ORLAND PARK             41.61N 87.85W
06/30/2014  M1.26 INCH       COOK               IL   AMATEUR RADIO

            159TH AND WOLF.

0729 PM     TSTM WND GST     2 ESE LOCKPORT          41.58N 88.01W
06/30/2014  M70.00 MPH       WILL               IL   MESONET

0718 PM     TSTM WND GST     OAK FOREST              41.61N 87.75W
06/30/2014  E60.00 MPH       COOK               IL   TRAINED SPOTTER

            HALF MILE WEST CENTRAL AND 159TH. SMALL BRANCHES AND
            LARGE TREE BRANCH DOWN. 4 TO 5 INCHES OF WATER ON THE
            STREET. WIND GUST 50 TO 60 MPH.

0718 PM     TSTM WND GST     VILLA PARK              41.89N 87.98W
06/30/2014  E60.00 MPH       DUPAGE             IL   TRAINED SPOTTER

0709 PM     TSTM WND DMG     HARVARD                 42.42N 88.62W
06/30/2014                   MCHENRY            IL   PUBLIC

            WHITE OAKS ROAD AND ONE QUARTER MILE SOUTH OF THE STATE
            LINE. 6 INCH DIAMETER TREE DOWN.

0706 PM     TSTM WND GST     VILLA PARK              41.89N 87.98W
06/30/2014  E60.00 MPH       DUPAGE             IL   TRAINED SPOTTER

            GUSTS FOR A BRIEF TIME - LARGE TREES BENDING OVER IN
            FOREST PRESERVE

0701 PM     TSTM WND DMG     PLAINFIELD              41.62N 88.20W
06/30/2014                   WILL               IL   PUBLIC

            6 INCH DIAMETER TREE DOWN. NAPERVILLE-PLAINFILED RD AND
            135TH ST.

0700 PM     TSTM WND GST     ROMEOVILLE              41.65N 88.09W
06/30/2014  M56.00 MPH       WILL               IL   OFFICIAL NWS OBS

            AT WFO CHICAGO OFFICE.

0700 PM     TSTM WND GST     VILLA PARK              41.89N 87.98W
06/30/2014  E60.00 MPH       DUPAGE             IL   AMATEUR RADIO

            NEAR VERMONT

0655 PM     TSTM WND GST     PLAINFIELD              41.62N 88.20W
06/30/2014  E60.00 MPH       WILL               IL   PUBLIC

            LAWN CHAIR THROWN AROUND.

0654 PM     LIGHTNING        BARTLETT                41.98N 88.21W
06/30/2014                   DUPAGE             IL   TRAINED SPOTTER

            STEARNS ROAD AND NAPERVILLE ROAD HEAVY RAIN AND FREQUENT
            CLOUD TO GROUND LIGHTNING.

0647 PM     TSTM WND GST     YORKVILLE               41.64N 88.45W
06/30/2014  E50.00 MPH       KENDALL            IL   PUBLIC

            ESTIMATED 40 TO 50 MPH.

0642 PM     TSTM WND DMG     1 WSW OTTAWA            41.35N 88.85W
06/30/2014                   LA SALLE           IL   TRAINED SPOTTER

            LARGE TREE LIMBS/BRANCHES DOWN GREATER THAN OR EQUAL TO 2
            INCHES.

0625 PM     TSTM WND GST     ELGIN                   42.04N 88.29W
06/30/2014  E50.00 MPH       KANE               IL   PUBLIC

            ESTIMATED 40 TO 50 MPH.

0623 PM     FUNNEL CLOUD     GAGES LAKE              42.35N 87.98W
06/30/2014                   LAKE               IL   911 CALL CENTER

            AT THE INTERSECTION OF RT 120 AND ALMOND.

0620 PM     TSTM WND DMG     LOVES PARK              42.34N 89.01W
06/30/2014                   WINNEBAGO          IL   AMATEUR RADIO

            4 TO 5 INCH DIAMETER LIMB DOWN AT DEVON STREET AND DEVON
            CT.

0620 PM     TSTM WND GST     SW ELBURN               41.89N 88.47W
06/30/2014  E0.00 MPH        KANE               IL   TRAINED SPOTTER

            WITH HEAVY RAIN AND DIME SIZE HAIL IN THE AREA OF MAIN
            STREET AND THE WEST COUNTY LINE.

0537 PM     TSTM WND GST     ROCKTON                 42.45N 89.07W
06/30/2014  E60.00 MPH       WINNEBAGO          IL   PUBLIC

            ESTIMATED 50 TO 60 MPH WINDS. 2 TO 3 INCH DIAMETER TREE
            BRANCHES DOWN.

0527 PM     TSTM WND GST     BELVIDERE               42.25N 88.85W
06/30/2014  M58.00 MPH       BOONE              IL   AMATEUR RADIO

            NEAR ROUTE 173 AND CALEDONIA ROAD. ROOF SHINGLES RIPPED
            OFF.

0519 PM     TSTM WND GST     ROCKFORD                42.27N 89.06W
06/30/2014  E0.00 MPH        WINNEBAGO          IL   TRAINED SPOTTER

            40 MPH SUSTAINED WIND. LOCATION ROUTE 90 MILE MARKER 184.

0518 PM     TSTM WND GST     ROCKFORD                42.27N 89.06W
06/30/2014  E50.00 MPH       WINNEBAGO          IL   TRAINED SPOTTER

            ESTIMATED WIND SPEED 40 TO 50 MPH. NEAR INTERSTATE 90 AND
            SHOPAIRE.

0510 PM     TSTM WND DMG     ROCKTON                 42.45N 89.07W
06/30/2014                   WINNEBAGO          IL   TRAINED SPOTTER

            APPROXIMATELY 2 TO 3 INCH DIAMETER TREE LIMBS SNAPPED.

0220 PM     HEAVY RAIN       STREATOR                41.13N 88.83W
06/30/2014  M1.45 INCH       LA SALLE           IL   TRAINED SPOTTER

            RAINFALL TOTAL FROM THIS MORNING.

&&

BN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
941 PM CDT MON JUN 30 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0938 PM     TSTM WND GST     AURORA                  41.77N 88.29W
06/30/2014  M61 MPH          KANE               IL   ASOS

&&

BN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
943 PM CDT MON JUN 30 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0915 PM     HEAVY RAIN       AMBOY                   41.72N 89.33W
06/30/2014  M2.20 INCH       LEE                IL   TRAINED SPOTTER

            RAINFALL SINCE 530 PM.

&&

BN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
947 PM CDT MON JUN 30 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0910 PM     TSTM WND DMG     MENDOTA                 41.55N 89.12W
06/30/2014                   LA SALLE           IL   AMATEUR RADIO

            2 SEMI-TRUCKS FLIPPED OVER ON I39. NUMEROUS TREE BRANCHES
            DOWN IN TOWN.

&&

BN

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
957 PM CDT MON JUN 30 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0953 PM     TSTM WND GST     OSWEGO                  41.70N 88.33W
06/30/2014  M75 MPH          KENDALL            IL   TRAINED SPOTTER

            NEAR INTERSECTION OF US30 AND US34.

&&

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