Alert archive / Indiana / Special Weather Statements in 2013

Special Weather Statement, NWS Chicago, IL

June 28, 2013Lake County, Indiana

NWS Chicago, IL issued this special weather statement at Jun 28, 2013, 3:21 PM CDT for Lake County, Indiana. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 28, 2013, 3:21 PM CDT (20:21 UTC)
Expired: Jun 28, 2013, 4:00 PM CDT
In force: 39 min
Issued by: NWS Chicago, IL

County Lake County, IN

The radar

The Chicago radar (KLOT), 46 km from the middle of the area, began a volume at 20:21 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.4 hours before the alert went out and 187 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 8 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1600 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -56 m²/s²
0-3 km storm-relative helicity: -41 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this special weather statement went out at Jun 28, 3:09 PM CDT, 12 minutes earlier.

Area forecast discussion, Jun 28, 3:09 PM CDT, 12 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
309 PM CDT FRI JUN 28 2013

.MESOSCALE DISCUSSION...
230 PM CDT

MONITORING GUSTY STORMS ACROSS NORTH CENTRAL TO NORTHEAST IL. A
COUPLE ARCS OF CONVECTION HAVE DEVELOPED ON THE LEADING EDGE OF
THE INCOMING SHORT WAVE. THIS LEADING EDGE HAS AN UNSTABLE
ATMOSPHERE TO WORK WITH GIVEN SURFACE TEMPERATURES SEVERAL
DEGREES ABOVE CONVECTIVE TEMPS PER MORNING SOUNDINGS AND AMDAR
DATA. NICE INVERTED-V SHAPE SOUNDINGS ARE PRESENT UP TO 5000-6000
FT WITH ASSOCIATED DOWNDRAFT CAPE ANALYZED BY THE RAP IN EXCESS OF
800 J/KG. THE STORM MOVING ACROSS SOUTHERN KANE NOW HAS PRODUCED A
46 MPH GUST AT DEKALB...AN ESTIMATED 50 MPH GUST AT HINKLEY...AND
A MEASURED 52 MPH GUST AT AURORA. THIS IS THE MOST ORGANIZED
STORM BUT ANY OF THESE WILL HAVE THE POTENTIAL TO PRODUCE
WINDS...AND POSSIBLY SOME SMALL HAIL. WILL CONTINUE WITH SPECIAL
WEATHER STATEMENTS ON THESE BUT WOULD NOT BE SURPRISED TO HAVE A
BRIEF SEVERE THUNDERSTORM WARNING OR TWO...ESPECIALLY ON THESE
LEADING TWO ARCS.

MTF

&&

.DISCUSSION...
1135 AM CDT

ONLY SOME MINOR TWEAKS TO SHORT TERM FORECAST GRIDS FOR THE REST
OF TODAY AND THIS EVENING TO ACCOUNT FOR RECENT AND CURRENT
TEMPERATURE...DEW POINT AND CLOUD TRENDS.

A SMALL VORT MAX IN THE NW UPPER FLOW DROPPED SE TO SE WI
OVERNIGHT PRODUCING SOME MINOR SHOWERS AND AN ISOLATED TS. BUT MID
MORNING IT HAD MOVES OUT OF SOUTHERN LAKE MI AND IS CURRENTLY
UPPER APPROACHING THE SW SHORE OF LOWER MI AND WILL NOT POSE ANY
THREAT OF SHRA OR TS TO THE LOCAL AREA.

UPSTREAM...WATER VAPOR SATELLITE LOOPS SHOW ANOTHER SHORT
WAVE/VORT MAX HAS BEEN QUICKLY DROPPING SSE FROM E CENTRAL MN TO
W CENTRAL WI THIS MORNING. NAM12 AND RUC13 SEEM TO HAVE A DECENT
HANDLE ON THIS FEATURE AND TURN IT MORE SE AS IT STARTS TO ENTER
THE BROAD UPPER TROUGH FROM THE UPPER MIDWEST E TO THE NEW
ENGLAND COAST AND S TO THE MID MS...OH...AND TN VALLEYS...AND THE
MID ATLANTIC COAST.

EXTRAPOLATION OF RECENT MOVEMENT OF THE WI SHORT WAVE IS IN DECENT
AGREEMENT WITH ABOVE MENTIONED MODELS BRINGING THE THE SHORT WAVE
TROUGH S OF THE WI BORDER BETWEEN 20 AND 21Z. SIGNIFICANT MID
LEVEL COOLING OCCUR ED SINCE YESTERDAY AND WHILE MODELS TEMPERATURE
PROFILES SHOW WARMING DURING THE DAY BY 29.00Z THERE IS STILL A
DEEP ALBEIT MUCH NARROW AREA OF CAPE OVER THE LOCAL AREA THAN THIS
MORNING. STILL...WITH CONVECTIVE TEMPERATURES TO BE REACHED BY
NOON EXPECT TO SEE QUICK CU DEVELOPMENT AHEAD OF LARGE AREA OF
CLOUDS ADVECTING ACROSS SOUTHERN WI TOWARD NORTHERN IL AND NW IN.

AS OF 1125 AM CDT RADAR COMPOSITE LOOP SHOWED ONLY SCATTERED SMALL
LIGHT SHOWERS UPSTREAM OF THE LOCAL FORECAST AREA BUT WITH SOME
ADDITIONAL HEATING AVAILABLE THROUGH DECREASING ML-CAPE OF 1200
TO 2000 J/KG DEPENDING ON WHICH MODEL OVER THE AREA AND DECENT UVV
IN THE LOWER AND MID LEVELS AHEAD OF THE APPROACHING SHORT WAVE
TROUGH FEEL THAT ALONG WITH INCREASING CLOUDY COVER TO BROKEN OR
NEAR OVERCAST PROBABILITY OF SHOWERS WILL BE INCREASING TO LIKELY
DURING THE AFTERNOON...WITH ALSO A SOME THUNDERSTORMS OCCURRING.

TRS

//PREV DISCUSSION...
339 AM CDT

SYNOPSIS...THE LARGE SCALE PATTERN WILL NOT CHANGE MUCH OVER THE
NEXT WEEK WITH A LARGE RIDGE OVER THE WESTERN U.S. AND A TROUGH OVER
THE EASTERN U.S. STORMS ARE EXPECTED TODAY AND TOMORROW WITH A BRIEF
DRY PERIOD EXPECTED EARLY NEXT WEEK.  ALSO EXPECTED IS A COOL PERIOD
AS NORTH FLOW SETS UP SATURDAY.

TODAY AND TONIGHT...
THE SURFACE LOW THAT IS CENTERED OVER NEW ENGLAND AND STRETCHES BACK
TO LAKE SUPERIOR WILL SINK SOUTH TODAY.  IN ADDITION THE UPPER LEVEL
JET EXIT WILL ALSO BE SINKING SOUTH THROUGH THE CWA WITH THE LEFT
JET EXIT REGION OVERHEAD DURING PRIME HEATING THIS AFTERNOON.  LONG
SKINNY CAPE OF UP TO 1000 J/KG IS FORECAST AND SHEAR WILL BE MINIMAL
AT BEST...10 KT OR SO. THEREFORE EXPECTING SCATTERED STORMS TO
SPROUT FIRST ALONG THE IL/WI STATE LINE AROUND NOON AND SCATTERED
THUNDERSTORMS SHOULD SPREAD ACROSS THE CWA EARLY THIS AFTERNOON.
LATER IN THE AFTERNOON AS THE WAVE COMES THROUGH EXPECTING THE MAIN
THUNDERSTORM ACTIVITY TO BE EAST OF A NORTHWEST BOONE COUNTY TO
SOUTH CENTRAL IROQUOIS COUNTY LINE.  SCATTERED THUNDERSTORMS ARE
CERTAINLY POSSIBLE WEST OF THAT LINE AS WELL...BUT THINKING THE
STRONGER STORMS AND BETTER COVERAGE WILL BE EAST OF THE LINE.
STORMS WILL LIKELY BE PULSEY AND UNORGANIZED AS THERE IS A DECENT
AMOUNT OF CAPE BUT NOT ENOUGH SHEAR FOR LONG LIVED ORGANIZED STORMS.

THE DIURNAL CONVECTION WILL WIND DOWN AFTER SUNSET WITH SCATTERED
SHOWERS OVERNIGHT.  ENJOY THE TEMPS TODAY BECAUSE A COOL DOWN IS
EXPECTED TOMORROW.  HIGHS WILL RANGE FROM AROUND 80 TO THE MID 80S.

SATURDAY AND SUNDAY...
WINDS TURN NORTH SATURDAY BEHIND THE UPPER LEVEL TROUGH AND MUCH
COOLER AIR MOVES INTO THE REGION.  THE UPPER LEVEL TROUGH SPLITS
WITH THE SOUTHERN LOW BECOMING A CLOSED LOW OVER OHIO LATE SATURDAY
NIGHT. YET ANOTHER UPPER LEVEL DISTURBANCE PASSES OVER THE WESTERN
HALF OF THE CWA SPARKING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS
PRIMARILY WEST OF THE CHICAGO METRO.  CAPE WILL BE VERY LOW ON
SATURDAY WITH MAYBE A FEW HUNDRED J/KG AVAILABLE.  SHEAR WILL BE A
BIT MORE FAVORABLE FOR ORGANIZED CONVECTION...BUT THINKING GENERAL
THUNDERSTORMS WILL BE THE MAIN SHOW.

THE DIURNAL SHOWERS AND THUNDERSTORMS DISSIPATE OVERNIGHT WITH LOW
TEMPS FALLING INTO THE UPPER 50S.  CLOUD COVER SHOULD REMAIN THICK
ENOUGH TO KEEP TEMPS UP A BIT.

ON SUNDAY THE UPPER LEVEL TROUGH RETROGRADES A BIT ACROSS THE OHIO
RIVER VALLEY AND INSTABILITY ASSOCIATED WITH THE LOW MAY HELP A FEW
SHOWERS AND THUNDERSTORMS FORM ON SUNDAY.  AREAS ALONG AND SOUTH OF
I-80 HAVE THE BEST CHANCE FOR A PASSING SHOWER OR THUNDERSTORM.
COVERAGE SHOULD REMAIN SPARSE AND A RAIN OUT IS NOT EXPECTED.
ANOTHER DRY NIGHT IS EXPECTED SUNDAY NIGHT.  SUNDAY LOOKS A BIT
WARMER WITH HIGHS IN THE MID 70S BUT CLOUDS SHOULD THIN SUNDAY NIGHT
SO WENT A FEW DEGREES COOLER SUNDAY NIGHT.

EXTENDED...MONDAY THROUGH THURSDAY...
THE LARGE LOW PRESSURE REMAINS OVER THE EAST COAST WHILE HIGH
PRESSURE SINKS SOUTH OUT OF CANADA REACHING THE CWA ON MONDAY. THE
UPPER LEVEL TROUGH WILL REMAIN OVERHEAD THROUGHOUT THE EXTENDED WITH
DISTURBANCES ROTATING AROUND IT.  AS SUCH LEFT PERIODIC CHANCES OF
SHOWERS AND THUNDERSTORMS IN THE FORECAST.  TEMPS REMAIN BELOW
NORMAL THANKS TO THE UPPER LEVEL LOW AND NORTHERLY SURFACE FLOW.
HOWEVER LOOKING LIKE WE MIGHT SEE HIGHS IN THE 80S BY LATE NEXT
WEEK.

JEE

&&

.AVIATION...

//ORD AND MDW CONCERNS...UPDATED 20Z...

* PERIODS OF SHRA WITH ISOLATED TSRA THROUGH 22Z. SOME STORMS MAY
  HAVE GUSTS IN EXCESS OF 40 MPH.
* MVFR CIGS ARRIVING THIS EVENING WITH A GOOD CHANCE...ESPECIALLY
  FOR LATE JUNE...FOR IFR LATER TONIGHT INTO SAT MORNING.
* NORTHWEST WINDS TURN NORTH LATE THIS EVENING/OVERNIGHT.
* CHANCE FOR SHRA ON SAT AFTERNOON.

//DISCUSSION...UPDATED 18Z...

BROAD LOW PRESSURE ACROSS THE EASTERN GREAT LAKES AND NEW ENGLAND
WILL CONTINUE TO PRESENT NORTHERLY FLOW OVER THE TAF SITES INTO
THIS WEEKEND. AN UPPER LEVEL DISTURBANCE MOVING OVERHEAD THIS
AFTERNOON INTO THE EARLY EVE WILL PRESENT THE GREATEST COVERAGE OF
SHOWERS THROUGH THE NEXT 24 HOURS...WITH ISOLATED TO SCATTERED
THUNDER LIKELY. SOME OF THESE INDIVIDUAL STORMS/SHOWERS COULD BE
GUSTY GIVEN THE ENVIRONMENT...PUTTING OUT GUST FRONTS THAT WILL
EXTEND A WAYS FROM THE ACTUAL RAIN. COVERAGE IS ANTICIPATED TO BE
AROUND 70 PERCENT ACROSS CHICAGOLAND FROM 20Z-23Z. COVERAGE WILL
BE SLOW TO WANE THROUGH 02Z-04Z THOUGH DIMINISHING INSTABILITY
SHOULD ALLOW THE THUNDER THREAT TO DROP QUICKLY THIS EVE. NW WINDS
WILL TURN NNE AT SOME POINT TONIGHT...THOUGH CONFIDENCE IN EXACT
TIMING REMAINS LOW. WINDS LOOK TO BE NNE TO NE ON SAT...AT LEAST
BY LATE MORNING INTO THE AFTERNOON WITH HIGHER CONFIDENCE.

//ORD AND MDW CONFIDENCE...UPDATED 20Z...

* HIGH CONFIDENCE IN SHRA WITH MEDIUM CONFIDENCE IN TSRA. HIGH
  CONFIDENCE IN DURATION OF SHRA AND TSRA...ALTHOUGH TIMES OF
  SHRA/TSRA AT THE AIRFIELD MAY BE BRIEF.
* HIGH CONFIDENCE IN MVFR ARRIVING AT SOME POINT THIS EVE AND
  MEDIUM CONFIDENCE IN IFR. LOW CONFIDENCE IN IFR DURATION.
* MEDIUM CONFIDENCE IN WIND DIRECTION AND SPEED. WINDS MAY TURN
  SHARPLY NEAR OUTFLOW BOUNDARIES FROM SHOWERS THIS AFTERNOON.
* LOW CONFIDENCE IN SCT SHRA SAT AFTERNOON.

//OUTLOOK FOR ORD/MDW FOR 00Z SUNDAY-12Z FRIDAY...UPDATED 12Z...

SATURDAY NIGHT THROUGH SUNDAY...VFR.

MONDAY...VFR. CHANCE FOR SHOWERS MONDAY EVENING.

TUESDAY THROUGH THURSDAY...DRY AND VFR.

MTF

&&

.MARINE...
305 PM CDT

A SPRAWLING AREA OF LOW PRESSURE OVER NEW YORK AND THE EASTERN
GREAT LAKES WILL SLOWLY TRACK NORTHEAST INTO SOUTHERN QUEBEC BY
TOMORROW AFTERNOON. A TROUGH OF LOW PRESSURE EXTENDING WEST FROM
THIS LOW THROUGH CENTRAL LAKE MICHIGAN WILL PUSH SOUTH ACROSS THE
LAKE...USHERING IN COOLER AIR AND STRONGER WINDS OVER LAKE
MICHIGAN. IN GENERAL...WINDS SHOULD BE A LITTLE STRONGER OVER THE
SOUTHERN PORTIONS OF THE LAKE WHERE THE PRESSURE GRADIENT WILL BE
STRONGEST..TO 25KT...THOUGH THERE SHOULD BE PERIODS WHEN WINDS
WILL DECREASE TO 10 TO 20 KT. WINDS WILL TURN NORTHERLY BEHIND THE
TROUGH PASSAGE...AND REMAIN GENERALLY NORTHERLY THROUGH MONDAY
NIGHT AS HIGH PRESSURE BUILDS ACROSS THE NORTHERN PLAINS TO THE
UPPER MISSISSIPPI VALLEY. THE HIGH WILL MOVE ACROSS WESTERN GREAT
LAKES REGION ON TUESDAY...BRINGING SOME LIGHTER WINDS BEFORE
TURNING MORE SOUTHERLY BY MIDWEEK AS THE HIGH SLIDES OFF TO THE
EAST.

KREIN

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...BEACH HAZARDS STATEMENT...ILZ006-ILZ014...4 PM SATURDAY TO 3 AM
     MONDAY.

IN...BEACH HAZARDS STATEMENT...INZ001-INZ002...9 AM SATURDAY TO 3 AM
     MONDAY.

LM...NONE.
&&

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

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

Hazardous weather outlook, Jun 28, 11:05 AM CDT, 4 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1105 AM CDT FRI JUN 28 2013

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
291615-
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-
1105 AM CDT FRI JUN 28 2013 /1205 PM EDT FRI JUN 28 2013/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

 SCATTERED THUNDERSTORMS...SOME MAY PRODUCE:
  SMALL HAIL.
  GUSTY WINDS.
  FREQUENT CLOUD TO GROUND LIGHTNING.

  AREAS AFFECTED AND TIMING:

   THUNDERSTORMS WILL FIRST DEVELOP ALONG THE ILLINOIS WISCONSIN
   STATE LINE EARLY THIS AFTERNOON AND THEN SPREAD ACROSS NORTHERN
   ILLINOIS AND NORTHWEST INDIANA THROUGHOUT MID TO LATE
   AFTERNOON.

  DISCUSSION:

   UPPER LEVEL DISTURBANCES WILL PROVIDE ENOUGH LIFT TO CREATE
   SCATTERED STORMS ACROSS THE REGION THIS AFTERNOON. INSTABILITY
   AND WIND SHEAR WILL BE LIMITED SO ORGANIZED STORMS SUCH AS HAS
   BEEN SEEN THE PAST SEVERAL DAYS ARE NOT LIKELY. HOWEVER SOME
   STORMS ARE LIKELY TO PRODUCE SMALL HAIL AND GUSTY
   WINDS...POSSIBLY IN EXCESS OF 40 MPH.

PORTIONS OF THE DES PLAINES...FOX...KISHWAUKEE...AND ROCK RIVERS
WILL REMAIN IN FLOOD.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN SATURDAY AFTERNOON.
THERE WILL BE ADDITIONAL PERIODIC CHANCES OF DAYTIME
THUNDERSTORMS MONDAY THROUGH NEXT THURSDAY.

PORTIONS OF THE DES PLAINES...FOX...KISHWAUKEE...AND ROCK RIVERS
WILL REMAIN IN FLOOD.

HIGH WAVES WILL LIKELY CREATE HAZARDOUS SWIMMING CONDITIONS THIS
WEEKEND FOR SOME AREA BEACHES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

&&

LMZ740>745-291615-
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-
1105 AM CDT FRI JUN 28 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS WILL BE SEEN THIS AFTERNOON AND LINGER
INTO THIS EVENING. SOME COULD PRODUCE SMALL HAIL AND WIND GUSTS UP
TO 35 KNOTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE WILL BE A CHANCE FOR THUNDERSTORMS SATURDAY AND PERIODIC
CHANCES OF THUNDERSTORMS MONDAY THROUGH THURSDAY.

STRONG WINDS AND HIGH WAVES MAY LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT SATURDAY AFTERNOON ALONG THE INDIANA NEARSHORE
WATERS...AND THEN ACROSS ALL NEARSHORE WATERS SATURDAY NIGHT.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-291615-
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-
1105 AM CDT FRI JUN 28 2013

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH THIS EVENING. SOME
MAY PRODUCE PRODUCE SMALL HAIL AND WIND GUSTS UP TO 35 KNOTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE WILL BE A CHANCE FOR THUNDERSTORMS SATURDAY PRIMARILY OVER
THE SOUTHERN TWO THIRDS OF THE LAKE...WITH ADDITIONAL CHANCES
TUESDAY THROUGH THURSDAY.

&&

JEE/MTF

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

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

In the hours before

Local storm report, Jun 28, 2:34 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
234 PM CDT FRI JUN 28 2013

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

0225 PM     TSTM WND GST     SUGAR GROVE             41.77N 88.46W
06/28/2013  M52 MPH          KANE               IL   ASOS

0216 PM     TSTM WND GST     HINCKLEY                41.77N 88.64W
06/28/2013  E50 MPH          DE KALB            IL   PUBLIC

&&

MTF

Special weather statement, Jun 28, 2:42 PM CDT, 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
242 PM CDT FRI JUN 28 2013

ILZ012-013-020-022-282015-
DUPAGE IL-KANE IL-KENDALL IL-WILL IL-
242 PM CDT FRI JUN 28 2013

...SPECIAL WEATHER STATEMENT...

AT 238 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM AURORA TO
YORKVILLE...MOVING SOUTHEAST AT 40 MPH.

WINDS TO 55 MPH...AND OCCASIONAL CLOUD TO GROUND LIGHTNING...ARE
EXPECTED WITH THESE STORMS. THE WINDS ARE RUNNING OUT AHEAD OF THE
LINE OF SHOWERS. THEREFORE THERE WILL BE STRONG WINDS PRIOR TO THE
ONSET OF THE RAIN. TAKE SHELTER NOW.

CITIES AND TOWNS AFFECTED...BOLINGBROOK...WOODRIDGE...AND PLAINFIELD
AROUND 255 PM...ROMEOVILLE...AND CRYSTAL LAWNS AROUND 300 PM...
SHOREWOOD...AND CREST HILL AROUND 305 PM AND JOLIET AROUND 310 PM.

OTHER LOCATIONS AFFECTED...
ARGONNE NATIONAL LABORATORY...JOLIET JUNIOR COLLEGE...LEWIS
UNIVERSITY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES.  SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE
PASSED.

&&

LAT...LON 4171 8795 4169 8797 4168 8803 4164 8803
      4164 8801 4146 8818 4162 8849 4181 8824
TIME...MOT...LOC 1941Z 305DEG 29KT 4174 8825 4161 8841

BIRK

Local storm report, Jun 28, 2:44 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
244 PM CDT FRI JUN 28 2013

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

0237 PM     TSTM WND GST     BOULDER HILL            41.71N 88.34W
06/28/2013  E55 MPH          KENDALL            IL   TRAINED SPOTTER

&&

ACS

Special weather statement, Jun 28, 2:52 PM CDT, 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
252 PM CDT FRI JUN 28 2013

ILZ013-014-022-282030-
COOK IL-DUPAGE IL-WILL IL-
252 PM CDT FRI JUN 28 2013

...SPECIAL WEATHER STATEMENT...

AT 247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ROMEOVILLE TO
SHOREWOOD...MOVING SOUTHEAST AT 40 MPH.

WINDS TO 55 MPH...AND OCCASIONAL CLOUD TO GROUND LIGHTNING...ARE
POSSIBLE WITH THESE STORMS. THE STRONG WINDS ARE RUNNING OUT AHEAD
OF THE LINE OF SHOWERS. THEREFORE THERE WILL BE STRONG WINDS PRIOR
TO THE ONSET OF THE RAIN. TAKE SHELTER NOW.

CITIES AND TOWNS AFFECTED...SHOREWOOD...LOCKPORT...AND JOLIET AROUND
300 PM...PALOS PARK...PALOS HILLS...AND ROCKDALE AROUND 305 PM...
PALOS HEIGHTS AND WORTH AROUND 310 PM.

OTHER LOCATIONS AFFECTED...
ARGONNE NATIONAL LABORATORY...CHICAGOLAND SPEEDWAY ROUTE 66
RACEWAY...FIRST MIDWEST BANK AMPHITHEATRE...JOLIET JUNIOR COLLEGE...
JOLIET SLAMMERS BASEBALL...LEWIS UNIVERSITY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES.  SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE
PASSED.

&&

LAT...LON 4164 8755 4148 8767 4135 8791 4150 8824
      4158 8822 4164 8814 4175 8800
TIME...MOT...LOC 1951Z 293DEG 37KT 4171 8804 4162 8812
          4156 8830

BIRK

Special weather statement, Jun 28, 2:58 PM CDT, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
258 PM CDT FRI JUN 28 2013

ILZ013-014-INZ001-282030-
COOK IL-DUPAGE IL-LAKE IN-
258 PM CDT FRI JUN 28 2013

...SPECIAL WEATHER STATEMENT...

AT 256 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM CICERO TO DARIEN...
MOVING SOUTHEAST AT 40 MPH.

WINDS TO 50 MPH...AND OCCASIONAL CLOUD TO GROUND LIGHTNING...ARE
POSSIBLE WITH THESE STORMS.

CITIES AND TOWNS AFFECTED...DOUGLAS PARK...DOUGLAS PARK...AND
NORTHERLY ISLAND AROUND 305 PM...WORTH...PALOS HEIGHTS...AND OAK LAWN
AROUND 310 PM...HYDE PARK AND MERRIONETTE PARK AROUND 315 PM.

OTHER LOCATIONS AFFECTED...
BROOKFIELD ZOO...HAWTHORNE PARK...MORAINE VALLEY COMMUNITY COLLEGE...
TOYOTA PARK...TRITON COLLEGE...UNIVERSITY OF CHICAGO...MUSEUM OF
SCIENCE AND INDUSTRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES.  SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE
PASSED.

&&

LAT...LON 4160 8758 4174 8806 4193 8786 4186 8760
      4184 8760 4178 8756 4177 8756 4175 8753
      4171 8751
TIME...MOT...LOC 1958Z 303DEG 32KT 4185 8775 4169 8797

BIRK

Special weather statement, Jun 28, 3:21 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
321 PM CDT FRI JUN 28 2013

ILZ014-022-INZ001-282100-
COOK IL-LAKE IN-WILL IL-
321 PM CDT FRI JUN 28 2013

...SPECIAL WEATHER STATEMENT...

AT 319 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM CHATHAM TO
FRANKFORT...MOVING SOUTHEAST AT 30 MPH.

WINDS TO 50 MPH...AND OCCASIONAL CLOUD TO GROUND LIGHTNING...ARE
EXPECTED WITH THESE STORMS.

CITIES AND TOWNS AFFECTED...HOMEWOOD...AND EAST HAZEL CREST AROUND
325 PM...UNIVERSITY PARK...THORNTON...AND SOUTH HOLLAND AROUND 330
PM...STEGER...SOUTH CHICAGO HEIGHTS AND GLENWOOD AROUND 335 PM.

OTHER LOCATIONS AFFECTED...
FIRST MIDWEST BANK AMPHITHEATRE...GOVERNORS STATE UNIVERSITY...
ILLIANA MOTOR SPEEDWAY...PRAIRIE STATE COLLEGE...PURDUE UNIVERSITY
CALUMET...SOUTH SHORE RAIL-CATS BASEBALL...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES.  SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE
PASSED.

&&

LAT...LON 4133 8754 4143 8788 4163 8781 4179 8759
      4179 8757 4175 8753 4171 8752 4169 8749
      4168 8745 4169 8743 4168 8741 4165 8742
      4162 8730
TIME...MOT...LOC 2021Z 302DEG 24KT 4176 8756 4147 8781

BIRK

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 9:07 AM CDT	River Flood Warning	LOT	Winnebago	8 days
Jun 28, 10:36 AM CDT	River Flood Advisory	LOT	Lee	8 days
Jun 28, 2:06 PM CDT	Special Weather Statement	LOT	DeKalb	24 min
Jun 28, 2:22 PM CDT	Special Weather Statement	LOT	Kendall	23 min
Jun 28, 2:42 PM CDT	Special Weather Statement	LOT	Kendall	33 min
Jun 28, 2:52 PM CDT	Special Weather Statement	LOT	Will	38 min
Jun 28, 2:58 PM CDT	Special Weather Statement	LOT	Cook	32 min
Jun 28, 3:01 PM CDT	Special Marine Warning	LOT		119 min
Jun 28, 3:24 PM CDT	Beach Hazards Statement	LOT	Lake	4 days
Jun 28, 3:29 PM CDT	Special Weather Statement	LOT	Grundy, Kendall, LaSalle	46 min
Jun 28, 4:01 PM CDT	Special Weather Statement	LOT	Grundy, Will	29 min
Jun 27, 9:04 PM CDT	River Flood Warning	LOT	Lake, Newton	8 days
Jun 27, 9:20 PM CDT	River Flood Advisory	LOT	Porter	36 hr
Jun 27, 9:20 PM CDT	River Flood Advisory	LOT	Jasper, Porter	36 hr
Jun 28, 3:49 PM CDT	Special Weather Statement	LOT	Lake, Porter	41 min

Nearby

Special Weather Statements in Indiana, 2013 Every special weather statement in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.