River Flood Warning 33, NWS Chicago, IL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
717 PM CDT MON JUN 15 2015

.SHORT TERM...
255 PM CDT

THIS AFTERNOON AND TONIGHT...

ATMOSPHERE REMAINS REMARKABLY FAVORABLE FOR VERY HEAVY RAINFALL
WITH VERY HIGH FREEZING LEVELS AND RECORD/NEAR RECORD HIGH PWATS
ALLOWING FOR WARM RAIN PROCESSES (TROPICAL-LIKE) TO DOMINATE. THE
RESULT THIS MORNING HAS ALREADY BEEN THUNDERSTORMS WITH EXTREME
RAIN RATES...IN SOME CASES OVER AN INCH IN LESS THAN 20 MINUTES.
ATMOSPHERE WILL CHANGE VERY LITTLE THROUGH THE AFTERNOON AND INTO
THIS EVENING...SO CONTINUE TO BE VERY CONCERNED ABOUT LOCALIZED
VERY HEAVY RAINFALL AND THE POTENTIAL FOR FLASH FLOODING. GIVEN
THE EFFICIENCY OF RAINFALL PRODUCTION AND EXTREME RAINFALL
RATES...ANY TRAINING OF THUNDERSTORM ACTIVITY COULD RESULT IN A
SERIOUS FLASH FLOOD SITUATION DEVELOPING IN SOME LOCATIONS THIS
AFTERNOON INTO THIS EVENING. THE AREAS MOST SUSCEPTIBLE TO THIS
WOULD BE AREAS THAT HAVE ALREADY SEEN FLOODING IN RECENT DAYS
WHERE THE GROUND CAN TAKE NO MORE WATER AND ALSO IN URBANIZED
AREAS THAT CAN NEVER TOLERATE EXTREME RAINFALL RATES.

VISIBLE SATELLITE IMAGERY LATER THIS MORNING SHOWS SOME POCKETS OF
FILTERED SUNSHINE ALLOWING TEMPERATURES TO WARM INTO THE LOW/MID 80S
WITH DEWPOINTS IN THE LOW TO MID 70S. MODIFYING ILX'S MORNING
SOUNDINGS FOR CURRENT SURFACE OBS YIELD MLCAPE VALUES OVER 1000
J/KG NOW WITH NO REMAINING CONVECTIVE INHIBITION AND PWATS NEARING
2 INCHES. AREA VWPS SHOW DEEP LAYER OF 30-40KT WEST-SOUTHWESTERLY
WINDS FROM 850-500MB...WHICH IS RESULTING IN EFFECTIVE DEEP LAYER
SHEAR VALUES OF AROUND 30KT. WHILE DEEP LAYER SHEAR AND VERY WEAK
LAPSE RATES ARE NOT PARTICULARLY FAVORABLE FOR SEVERE WEATHER...WE
HAVE ALREADY SEEN SOME TRANSIENT OUTFLOW DOMINANT HP SUPERCELL-ISH
CONVECTION THIS MORNING. WITH SLOWLY BUILDING INSTABILITY...THE
THREAT DOES EXIST FOR SOME ADDITIONAL WET MICROBURSTS AND SMALL
BOWING SEGMENTS TO RESULT IN AN ISOLATED WIND DAMAGE THREAT THIS
AFTERNOON AND PERHAPS EARLY THIS EVENING.

ONE SMALL SCALE BOWING SEGMENT TRACKED ACROSS LEE...SOUTHERN
DEKALB/KANE COUNTIES LATE THIS MORNING AND HAS LAID OUT AN EAST-WEST
OUTFLOW BOUNDARY IN VICINITY OF I-80. SHOULD THIS OUTFLOW OR ANY
OTHER BECOME A FOCUS FOR CONVECTIVE DEVELOPMENT THIS AFTERNOON THE
THREAT OF TRAINING AND A MORE SUBSTANTIAL FLASH FLOOD THREAT WILL
GROW.

NOTE TO WSR-88D USERS: THE VERY HIGH EFFICIENCY OF RAIN IN THE
STORMS AND LACK OF HAIL IS RESULTING IN LEGACY PRECIPITATION
ESTIMATES ON THE RADAR TO BE RUNNING TOO LOW. USE SUCH PRODUCTS WITH
CAUTION...WE ARE UTILIZING THE DUAL POL RADAR ESTIMATES WHICH HAVE
BEEN PERFORMING MUCH BETTER IN THIS ENVIRONMENT.

IZZI

&&

.LONG TERM...
255 PM CDT

TUESDAY THROUGH MONDAY...

PRIMARY CONCERN FOR THE LONGER TERM FORECAST PERIOD WILL BE TRYING
TO DETERMINE WHEN AND HOW LONG THERE WILL BE SOME RELIEF FROM THE
SEEMINGLY PERSISTENT HEAVY RAIN POTENTIAL IN THE QUASI-TROPICAL
AIRMASS THAT HAS PERSISTED OVER THE REGION.  THE GENERAL LARGE SCALE
PATTERN WILL BE NEARLY ZONAL ACROSS THE NRN CONUS ALLOWING FOR A
SERIES OF SHORTWAVES TO TRACK ACROSS THE AREA...BRINGING PERIODIC
CHANCES FOR SHOWERS AND THUNDERSTORMS FOR THE LONGER TERM FORECAST
PERIOD.

MUCH OF THE REGION SHOULD SEE DRY WEATHER AS HIGH PRESSURE BUILDS
ACROSS THE UPPER MISSISSIPPI VALLEY AND INTO THE GREAT LAKES REGION.
 THE LEADING EDGE OF THE POLAR AIRMASS SHOULD SPREAD INTO NRN IL BY
EARLY TOMORROW AFTERNOON...USHERING IN LOWER DEWPOINTS AND FORCING
THE QUASI-TROPICAL AIRMASS TO THE SOUTH.  HOWEVER...THIS WILL ALSO
TURN WINDS NLY-NELY...BRINGING COOLER AIR ACROSS THE
AREA...ESPECIALLY ALONG THE LAKEFRONT.  TEMPERATURES TOMORROW SHOULD
TOP OUT IN THE UPPER 70S TO AROUND 80F...EXCEPT ALONG THE
LAKEFRONT...WHERE TEMPERATURES SHOULD ONLY REACH THE MIDDLE 60S.
ALSO...THERE IS A CHANCE FOR SOME LOW STRATUS AND FOG MOVING A SHORT
DISTANCE INLAND FROM THE LAKE.  ANY CHANCES FOR PCPN FOR THE AREA
SHOULD BE CONFINED TO LOCATIONS SOUTH OF A LINE ROUGHLY FROM
RENSSELAER TO PONTIAC.  BY TUESDAY NIGHT...PCPN CHANCES SHOULD BEGIN
TO CREEP BACK NORTH AS THE HIGH MOVES OFF TO THE EAST AND SFC
TROUGHING DEVELOPS OVER THE WESTERN PLAINS.  THE POLAR HIGH MOVING
OVER THE ERN GREAT LAKES WILL GRADUALLY MERGE WITH THE SUB-TROPICAL
HIGH OVER THE SRN CONUS...FORCING THE RETURN FLOW OF MOISTURE FRONT
THE WRN GLFMEX TO TAKE A LONGER PATH THROUGH THE CENTRAL
PLAINS...BUT WITH A WARM FRONT DEVELOPING ACROSS NRN MO THROUGH THE
OHIO VALLEY WILL SET UP ADEQUATE ISENTROPIC LIFT TO GENERATE SOME
ELEVATED CONVECTION.  THE HIGHEST POPS SHOULD REMAIN OVER THE SRN
PORTIONS OF THE CWA THROUGH THE NIGHT...SOUTH OF THE IL/KANKAKEE
RIVERS...WITH A LOWER CHANCE FOR SOME SCT SHRA/ISOLD TS POSSIBLE
SPREADING NORTH OF THE I-80 CORRIDOR.  BY WEDNESDAY AFTERNOON...THE
REGION WILL BE BACK IN THE WARM/MOIST AIRMASS WITH SFC DEWPOINTS
RISING BACK INTO THE LOWER 70S. THE ONE ELEMENT THAT WOULD LIMIT THE
COVERAGE OF TS OVER THE REGION ON WEDNESDAY WILL BE A SPLIT FLOW
WITH A NRN STREAM SHORTWAVE HELPING TO FOCUS PCPN OVER NRN WI AND A
SRN STREAM SHORTWAVE FOCUSING ACTIVITY OVER CNTRL IL/IN.
HOWEVER...THERE IS ENOUGH OF A SPREAD IN MODEL SOLUTIONS WITH
RESPECT TO THESE FEATURES THAT SOME PCPN CANNOT BE RULED OUT OVER
NRN IL/IN...SO HAVE PLASTERED CHANCE POPS OVER THE NRN CWA AND THE
LIKELY TO CATEGORICAL POPS TO THE SOUTH.

PERIODIC CHANCES FOR SHOWERS AND THUNDERSTORMS WILL ALMOST BE A
DAILY OCCURRENCE THROUGH THE REMAINDER OF THE EXTENDED FORECAST
PERIOD.  THE ONE BRIEF PERIOD THAT LOOKS TO BE DRY WILL BE THURSDAY
NIGHT AS ANOTHER POLAR AIRMASS SPREADS ACROSS THE UPPER MISSISSIPPI
VALLEY AND GREAT LAKES REGIONS.  THIS DRY PERIOD SHOULD BE
RELATIVELY BRIEF AS THE UPPER LEVEL PATTERN WILL REMAIN RELATIVELY
ZONAL ACROSS THE NRN CONUS.  WHILE THE LONGER RANGE GUIDANCE REMAINS
CONSISTENT ON THE LARGE SCALE PATTERN...THE TYPICAL VARIANCES IN
SHORTWAVE TIMING INTRODUCES THE ELEMENTS OF UNCERTAINTY TO THE
FORECAST...WITH THE MAIN TREND BEING FOR PERIODS OF SHOWERS AND
THUNDERSTORMS FROM FRIDAY...THROUGH THE WEEKEND AND INTO EARLY NEXT
WEEK.  THERE WILL BE DRY PERIODS AS WELL...AND WHILE THE FORECAST
SOUNDS LIKE A WASHOUT FOR THE ENTIRE PERIOD...THERE SHOULD BE
PERIODS OF DRY WEATHER AS WELL.  IT IS JUST THE TIMING THAT IS THE
BIGGEST QUESTION MARK.

KREIN

&&

.AVIATION...

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

* MULTI-HOUR TSRA WITH TEMPORARY IFR CONDITIONS LIKELY THIS
  AFTERNOON INTO THE EVENING. NUMEROUS TO WIDESPREAD COVERAGE OF
  STORMS IN THE TRACON AREA FAVORED.

* VARIABLE WINDS NEAR TSRA...WITH GUSTS TO 30 KT PSBL AT KMDW IN
  THE NEXT HOUR OR SO.

* LOWER MVFR/IFR VSBY IN RAIN/EMBEDDED TS THROUGH 3Z.

* WINDS BECOMING NORTHEAST AND INCREASING ABOUT 10KT NEAR/AFTER
  SUNRISE TUESDAY AND REMAINING SO MOST OF THE DAY.

* LOW MVFR CIGS LATE TONIGHT AND TUESDAY MORNING.

KMD

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

BACK EDGE OF THE PRECIPIATION IS NOW EAST OF THE MISSISSIPPI RIVER
NORTH OF THE INTERSTATE 80 CORRIDOR. THUNDER IS MOST NUMEROUS
ALONG THE I-80 CORRIDOR AND SOUTHWARD...WITH THE PRECIP MORE JUST
PLAIN RAIN WITH EMBEDDED THUNDER FARTHER NORTH. EXPECT THIS TO
CONTINUE FOR A FEW MORE HOURS. MODERATE RAINFALL IS EXPECTED AS
THE LIGHTNING IS DECREASING WITH LOW MVFR TO IFR VISIBILITY...AND
THE TREND IS FOR RAINFALL TO DECREASE IN INTENSITY SOME WITH TS
LESS LIKELY AT MOST OF THE TERMINALS AFTER 2-3Z.

WINDS ARE SW AHEAD OF A COLD FRONT THEN TRENDING NW AT THE
CHICAGOLAND TERMINALS AROUND 3-4Z. WINDS THEN BACK TO NE OVERNIGHT
INTO TUESDAY MORNING...THEN INCREASE ABOVE 10 KT THROUGH THE DAY
TUESDAY. FORECAST SOUNDINGS SUGGEST A PERIOD OF LOWER CLOUDS LATE
TONIGHT INTO TUESDAY MORNING...POSSIBLY HANGING ON THROUGH MIDDAY
CLOSER TO THE LAKE AND POSSIBLY AFFECTING MDW INTO THE EARLY
AFTERNOON.

KMD

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

* HIGH THAT RA WITH OCCASIONAL TS WILL IMPACT THE TERMINALS FOR
  THE NEXT FEW HOURS.

* MEDIUM-HIGH ON WINDS REMAINING FROM THE WEST THROUGH THIS
  EVENING APART FROM NEAR STORMS.

* MEDIUM-HIGH IN WIND SHIFT TIMING TO NORTH-NORTHEAST.

* LOW ON EXTENT AND DURATION OF LOW CIGS ON TUESDAY MORNING.

* MEDIUM-HIGH ON WIND DIRECTION AND SPEED TUESDAY.

KMD

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

WEDNESDAY...SCHC OF TSRA. SOUTHEAST WINDS TRENDING SOUTH.
THURSDAY...CHANCE OF TSRA. WEST/NORTHWEST WINDS.
FRIDAY...SLIGHT CHANCE OF TSRA. EAST WINDS.
SATURDAY-SUNDAY...CHANCE OF TSRA. SOUTHWEST WINDS.

KMD

&&

.MARINE...
305 PM CDT

THE PATTERN WILL REMAIN STEADILY PROGRESSIVE THROUGH THE
PERIOD...WITH PERIODIC CHANCES FOR THUNDERSTORMS AND A COUPLE
FRONTAL PASSAGES THAT WILL BRING CHANGES TO WIND DIRECTION.

FOR THE REMAINDER OF THIS AFTERNOON AND INTO EARLY THIS
EVENING...SWLY FLOW AHEAD OF A COLD FRONT WILL CONTINUE TO DRAW
WARM...MOIST AIR ACROSS THE COLDER LAKE WATERS...KEEPING AREAS OF
DENSE FOG OVER THE LAKE. THE FIRST FRONTAL PASSAGE WILL OCCUR
OVERNIGHT TONIGHT...VEERING WINDS TO NLY OVER MUCH OF THE OPEN
WATERS AND MORE NELY OVER THE NEARSHORE WATERS. THE COLD FRONT IS
RELATIVELY WEAK AND DO NOT EXPECT MUCH OF AN INCREASE IN WINDS
WITH THE FROPA...10-15 TO 10-20 KT. HIGH PRESSURE WILL BUILD IN
BEHIND THE FRONT...ALLOWING WINDS TO DROP OFF...BEFORE BECOMING
MORE SELY-SLY AS THE HIGH MOVES OFF TO THE EAST ON WEDNESDAY. A
WEAK GRADIENT WILL SET UP ACROSS THE GREAT LAKES UNTIL THE NEXT
WEAK COLD FRONT MOVES ACROSS THE LAKE. RELATIVELY WEAK WINDS BUT
PERIODS OF SHOWERS OR THUNDERSTORMS ARE LIKELY FOR THE LAKE
THROUGH THURSDAY WITH THE NEXT FROPA EXPECTED THURSDAY NIGHT OR
EARLY FRIDAY. ANOTHER AREA OF HIGH PRESSURE WILL MOVE ACROSS THE
LAKES FRIDAY AND PUSHING OFF TO NEW ENGLAND FRIDAY NIGHT. THIS
WILL THEN SET UP ANOTHER ROUND OF ACTIVE WEATHER. THE LONGER RANGE
MODEL GUIDANCE SUGGESTS THAT AS THE HIGH MOVES OFF THE NEW ENGLAND
COAST SATURDAY...A DEEPER LOW PRESSURE SYSTEM WILL APPROACH THE
UPPER MISSISSIPPI VALLEY AND WESTERN GREAT LAKES...SETTING UP A
STRONGER SLY GRADIENT OVER THE LAKE AND WINDS COULD INCREASE TO 20
TO 25 KT.

KREIN

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...FLASH FLOOD WATCH...ILZ003-ILZ004-ILZ005-ILZ006-ILZ008-ILZ010-
     ILZ011-ILZ012-ILZ013-ILZ014-ILZ020 UNTIL 1 AM TUESDAY.

     FLASH FLOOD WATCH...ILZ019-ILZ021-ILZ022-ILZ023-ILZ032-ILZ033-
     ILZ039 UNTIL 4 AM TUESDAY.

IN...FLASH FLOOD WATCH...INZ001-INZ002-INZ010-INZ011-INZ019 UNTIL 4
     AM TUESDAY.

LM...NONE.
&&

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

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
339 PM CDT MON JUN 15 2015

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
162045-
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-
339 PM CDT MON JUN 15 2015

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

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

  THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:

   FREQUENT CLOUD TO GROUND LIGHTNING.
   VERY HEAVY RAINFALL AND FLASH FLOODING.
   ISOLATED WINDS GUSTS ABOVE 60 MPH.

  AREAS AFFECTED AND TIMING:

   SCATTERED THUNDERSTORMS WILL LIKELY GROW MORE NUMEROUS ACROSS
   THE OUTLOOK AREA THROUGH THIS EVENING. THE MAIN CONCENTRATION
   OF THUNDERSTORMS WILL GRADUALLY SHIFT SOUTH OVERNIGHT AND
   END NORTH OF INTERSTATE 80 DURING THE PRE-DAWN HOURS.

  DISCUSSION:

   THUNDERSTORMS WILL BECOME MORE NUMEROUS THROUGH THE EVENING AS
   A SLOW MOVING FRONT APPROACHES THE AREA. THE ATMOSPHERE IS
   EXTREMELY MOIST AND ANY STORMS THAT FORM WILL HAVE THE
   POTENTIAL TO PRODUCE TORRENTIAL DOWNPOURS...POTENTIALLY
   UPWARDS OF 2 INCHES IN AN HOUR OR LESS. IN ADDITION TO THE
   HEAVY RAIN...WHICH MAY RESULT IN LOCALIZED FLASH FLOODING...A
   COUPLE OF THE STORMS COULD PRODUCE LOCALIZED WIND GUSTS OVER
   60 MPH.

  IN ADDITION...PORTIONS OF THE IROQUOIS...KANKAKEE...AND
  ILLINOIS RIVERS WILL REMAIN IN FLOOD.

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

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS TUESDAY THROUGH
THE WEEKEND.

PORTIONS OF THE IROQUOIS...KANKAKEE...AND ILLINOIS RIVERS WILL
REMAIN IN FLOOD.

.SPOTTER INFORMATION STATEMENT...

DUE TO THE ISOLATED NATURE OF THE SEVERE WEATHER THREAT...SPOTTER
ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT...HOWEVER ANY
OBSERVATIONS OF FLOODING OR MEASURED HEAVY RAIN TOTALS WOULD BE
APPRECIATED.

&&

LMZ740>745-162045-
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-
339 PM CDT MON JUN 15 2015

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

.DAY ONE...TONIGHT.

PERIODS OF THUNDERSTORMS ARE EXPECTED THROUGH LATE TONIGHT. SOME
OF THE STORMS MAY PRODUCE GUSTS UP TO 35 KNOTS.

AREAS OF FOG ARE POSSIBLE THROUGH THIS EVENING.

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

THERE ARE PERIODIC CHANCES OF THUNDERSTORMS LATE TUESDAY NIGHT
THROUGH THE WEEKEND.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-162045-
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-
339 PM CDT MON JUN 15 2015

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

.DAY ONE...TONIGHT.

PERIODS OF THUNDERSTORMS ARE EXPECTED ACROSS MUCH OF THE LAKE
THROUGH LATE TONIGHT.

AREAS OF DENSE FOG ARE LIKELY INTO EARLY THIS EVENING.

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

THERE ARE PERIODIC CHANCES OF THUNDERSTORMS WEDNESDAY THROUGH THE
WEEKEND.

&&

KREIN

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

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
WWW.TWITTER.COM/NWSCHICAGO
WWW.YOUTUBE.COM/NWSCHICAGO

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
721 PM CDT MON JUN 15 2015

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

0721 PM     HEAVY RAIN       CHESTERTON              41.60N 87.06W
06/15/2015  M1.70 INCH       PORTER             IN   TRAINED SPOTTER

&&

BMD

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
739 PM CDT MON JUN 15 2015

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

0645 PM     HEAVY RAIN       2 SW DIXON              41.83N 89.51W
06/15/2015  M2.64 INCH       LEE                IL   COCORAHS

            TOTAL SO FAR SINCE THIS MORNING WITH 1.68 INCHES IN THE
            PAST 90 MINUTES.

&&

BN

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