Alert archive / Indiana / Flash Flood Warnings in 2014

Flash Flood Warning 4, NWS Chicago, IL

May 11, 2014Ford County, Iroquois County, Illinois; Benton County, Jasper County, Newton County, Indiana

NWS Chicago, IL issued this flash flood warning at May 11, 2014, 9:15 PM CDT for Ford County, Iroquois County, Illinois; Benton County, Jasper County, Newton County, Indiana. It was in force for 6 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 11, 2014, 9:15 PM CDT (02:15 UTC)
Expired
May 12, 2014, 3:00 AM CDT
In force
6 hr
Issued by
NWS Chicago, IL
Area
Storm-based polygon
Flood severity
None

Counties Ford County, IL, Iroquois County, IL, Benton County, IN, Jasper County, IN, Newton County, IN

The radar

The Chicago radar (KLOT), 116 km from the middle of the area, began a volume at 02:19 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.

What was reported inside it

TimeReportWhereRemark
May 11, 11:30 PM CDTFLASH FLOODGibson City, ILESTIMATED 1.5 FEET OF FLOWING WATER ON ROUTE 47 NORTH OF GIBSON CITY. FLOODING ON ROADWAYS IN GIBSON CITY.
May 11, 11:55 PM CDTHEAVY RAIN 2.25Gibson City, ILMEASURED AT A RESIDENCE ON 12TH STREET.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 135 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.3 hours before the alert went out and 74 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2014-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2685 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2014-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2685 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
968 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
1.3
Supercell composite
7.1

Open this sounding in Storm Lab

The text

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

850 
WGUS53 KLOT 120215
FFWLOT
ILC053-075-INC007-073-111-120800-
/O.NEW.KLOT.FF.W.0004.140512T0215Z-140512T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
915 PM CDT SUN MAY 11 2014

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BENTON COUNTY IN NORTHWEST INDIANA...
  FORD COUNTY IN EAST CENTRAL ILLINOIS...
  SOUTHERN IROQUOIS COUNTY IN EAST CENTRAL ILLINOIS...
  SOUTHERN NEWTON COUNTY IN NORTHWEST INDIANA...
  SOUTHWESTERN JASPER COUNTY IN NORTHWEST INDIANA...

* UNTIL 300 AM CDT/400 AM EDT/

* AT 913 PM CDT/1013 PM EDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS
  THE WARNED AREA. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING 
  ONE TO TWO INCH PER HOUR RAINFALL RATES OVER THE NEXT ONE TO TWO   
  HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ATKINSON...BARCE...CLAYTONVILLE...DUNNINGTON...FOWLER...FREELAND
  PARK...GIBSON CITY...KENTLAND...LOCHIEL...OTTERBEIN...PAXTON...
  PERCY JUNCTION...PERKINS...RAUB AND STOCKLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4040 8847 4056 8846 4062 8819 4073 8823
      4082 8732 4077 8709 4047 8710 4048 8793
      4040 8793

$$

RODRIGUEZ
4 follow-up statements
666 
WGUS73 KLOT 120325
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1025 PM CDT SUN MAY 11 2014

ILC053-075-INC007-073-111-120800-
/O.CON.KLOT.FF.W.0004.000000T0000Z-140512T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IROQUOIS IL-FORD IL-NEWTON IN-JASPER IN-BENTON IN-
1025 PM CDT SUN MAY 11 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR BENTON...SOUTHWESTERN
JASPER...SOUTHERN NEWTON...FORD AND SOUTHERN IROQUOIS COUNTIES UNTIL
300 AM CDT/400 AM EDT/...

AT 1022 PM CDT/1122 PM EDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR 
INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL 
CONTINUING TO MOVE EAST OVER THE WARNED AREA. THE STRONGEST STORMS 
WILL BE CAPABLE OF PRODUCING ONE TO TWO INCH PER HOUR RAINFALL RATES 
OVER THE NEXT ONE TO TWO HOURS...BEFORE THEY SLOWLY SHIFT SOUTH OF 
THE WARNED AREA.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ATKINSON...BARCE...CLAYTONVILLE...DUNNINGTON...FOWLER...FREELAND
PARK...GIBSON CITY...KENTLAND...LOCHIEL...PAXTON...PERCY JUNCTION...
PERKINS...RAUB...STOCKLAND AND TALBOT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4040 8847 4056 8846 4062 8819 4073 8823
      4082 8732 4077 8709 4047 8710 4048 8793
      4040 8793

$$

RODRIGUEZ
492 
WGUS73 KLOT 120514
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1214 AM CDT MON MAY 12 2014

ILC053-075-INC007-073-111-120800-
/O.CON.KLOT.FF.W.0004.000000T0000Z-140512T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IROQUOIS IL-FORD IL-NEWTON IN-JASPER IN-BENTON IN-
1214 AM CDT MON MAY 12 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR BENTON...SOUTHWESTERN
JASPER...SOUTHERN NEWTON...FORD AND SOUTHERN IROQUOIS COUNTIES UNTIL
300 AM CDT/400 AM EDT/...

AT 1208 AM CDT/108 AM EDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED THAT GENERALLY TWO TO LOCALLY IN EXCESS OF FOUR INCHES OF 
RAIN FELL THIS EVENING ACROSS THE WARNED AREA. RUNOFF FROM THIS 
EXCESSIVE RAINFALL IS LIKELY STILL CAUSING AREAS OF FLASH FLOODING 
DESPITE THE RAIN TAPERING OFF. SHORTLY BEFORE 11 PM CDT...SOME 
NEIGHBORHOODS IN GIBSON CITY HAD SEVERAL INCHES OF STANDING WATER.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ATKINSON...
BARCE...CLAYTONVILLE...DUNNINGTON...FOWLER...FREELAND PARK...GIBSON
CITY...KENTLAND...LOCHIEL...PAXTON...PERCY JUNCTION...PERKINS...
RAUB...STOCKLAND AND TALBOT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4040 8847 4056 8846 4062 8819 4073 8823
      4082 8732 4077 8709 4047 8710 4048 8793
      4040 8793

$$

RC
510 
WGUS73 KLOT 120654
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
154 AM CDT MON MAY 12 2014

ILC053-075-INC007-073-111-120800-
/O.CON.KLOT.FF.W.0004.000000T0000Z-140512T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IROQUOIS IL-FORD IL-NEWTON IN-JASPER IN-BENTON IN-
154 AM CDT MON MAY 12 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR BENTON...SOUTHWESTERN
JASPER...SOUTHERN NEWTON...FORD AND SOUTHERN IROQUOIS COUNTIES UNTIL
300 AM CDT/400 AM EDT/...

AT 150 AM CDT/250 AM EDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED THAT THE HEAVY RAIN FROM THUNDERSTORMS HAS ENDED ACROSS 
THE WARNED AREA. HOWEVER...AREAS OF FLASH FLOODING ARE LIKELY 
OCCURRING DUE TO RUNOFF FROM THE TWO TO LOCALLY IN EXCESS OF FOUR 
INCHES OF RAIN THAT FELL THIS EVENING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...ATKINSON...
BARCE...CLAYTONVILLE...DUNNINGTON...FOWLER...FREELAND PARK...GIBSON
CITY...KENTLAND...LOCHIEL...PAXTON...PERCY JUNCTION...PERKINS...
RAUB...STOCKLAND AND TALBOT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA...MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO
CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4040 8847 4056 8846 4062 8819 4073 8823
      4082 8732 4077 8709 4047 8710 4048 8793
      4040 8793

$$

RC
823 
WGUS73 KLOT 120752
FFSLOT

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
252 AM CDT MON MAY 12 2014

ILC053-075-INC007-073-111-120807-
/O.EXP.KLOT.FF.W.0004.000000T0000Z-140512T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
IROQUOIS IL-FORD IL-NEWTON IN-JASPER IN-BENTON IN-
252 AM CDT MON MAY 12 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR BENTON...
SOUTHWESTERN JASPER...SOUTHERN NEWTON...FORD AND SOUTHERN IROQUOIS
COUNTIES WILL BE ALLOWED TO EXPIRE AT 300 AM CDT...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLASH FLOOD THREAT. IF FLOODING WAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.


LAT...LON 4040 8847 4056 8846 4062 8819 4073 8823
      4082 8732 4077 8709 4047 8710 4048 8793
      4040 8793

$$

RC

What forecasters said that day

The local office's own words before this flash flood warning 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 flash flood warning went out at May 11, 8:04 PM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, May 11, 8:04 PM CDT, 1 hour 11 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
804 PM CDT SUN MAY 11 2014

.MESOSCALE DISCUSSION...
804 PM CDT

THE TORNADO WARNED CELL ACROSS CENTRAL NEWTON AND JASPER COUNTIES
IS FOR A RAPIDLY INTENSIFYING UPDRAFT WITH VERTICALLY CONSISTENT
AND STRENGTHENING ROTATION. THIS STORM IS AT THE VERY SOUTHERN
EDGE OF THE ONGOING CLUSTER/COMPLEX AND IS FEEDING ON 100-150 J/KG
OF 0-3KM CAPE...AND A MODIFIED RAP SOUNDING DOES INDICATE LIFT
FROM THE SURFACE ALONG WITH LOWERING LCLS FROM EARLIER ACTIVITY
FURTHER WEST AND NORTH. THE 0-1KM SHEAR IS SLIGHTLY MARGINAL AT 15
KT BUT INCREASING WITH THE STRENGTHENING LOW-LEVEL JET. IN
ADDITION...A FUNNEL CLOUD REPORT WAS RECEIVED FROM JUST NORTH OF
BROOK INDIANA AT 757 PM WITH THIS STORM.

MTF

&&

.DISCUSSION...
300 PM CDT

FORECAST CONCERNS ARE MAINLY ON THE IMMEDIATE SEVERE WEATHER
CHANCES THROUGH EARLY/MID EVENING. ALSO FOCUS ON THE SEVERE
WEATHER POTENTIAL ON MONDAY...PRIMARILY MONDAY LATE AFTERNOON INTO
THE NIGHTTIME PERIOD.

OVERNIGHT INTO MONDAY MORNING...
STRONG UPPER JET WILL PROPAGATE AROUND THE UPPER TROUGH LATE
TONIGHT INTO THE MORNING ON MONDAY AND WITH THAT LEAD TO FURTHER
AMPLIFYING OF THE UPSTREAM RIDGE...INCLUDING BUILDING HEIGHTS
ACROSS MUCH OF THE FORECAST AREA. MUCH OF THE FORCING FOR
RAIN/STORMS IN THIS PERIOD WOULD BE FOCUSED TO THE WEST AND NORTH
IN SUCH A PATTERN. THE STRONG LOW-LEVEL JET WILL AT LEAST IN PART
BE OVER THE AREA...HOWEVER THE NOSE OF IT WILL BE POINTED FURTHER
NORTH. CONVECTIVE CHANCES LOOK MINIMAL AND MAINLY THE NORTHWEST
FORECAST AREA TOWARD ROCKFORD. CHANCES MAY BE INCREASED SOMEWHAT
IF ANY ORGANIZED CONVECTION FROM THE CENTRAL PLAINS WERE TO
PROPAGATE EASTWARD INTO NORTHERN IL...BUT THE GRADUALLY MORE
MERIDIONAL FLOW AND ORIENTATION OF FORECAST CORFIDI VECTORS WOULD
PUSH MUCH OF THE CONVECTION NORTH OF THE AREA. LOW TEMPS WILL BE
BALMY WITH CONTINUED SOUTHERLY FLOW AND HIGH DEW POINT AIR...WITH
SOME PLACES EXPERIENCING SOME WARMING OF TEMPS LATER THIS
EVENING...ESPECIALLY THOSE IMPACTED BY EARLY EVE CONVECTION AND
THOSE COMMUNITIES NEAR THE LAKE SHORE THAT HAD AFTERNOON/EVE
COOLING.

MONDAY AFTERNOON THROUGH TUESDAY...
THE UPPER TROUGH WILL CONTINUE TO AMPLIFY AS THE UPPER JET TO ITS
FRONT AND BACK INTENSITY. A WARM AND MUGGY DAY IS ANTICIPATED
MONDAY. CONVECTIVE INHIBITION ON MONDAY AFTERNOON DOES LOOK TO BE
OVERCOME BUT A FOCUS IS NOT OVERLY EVIDENT IN OUR FORECAST AREA.
GRADUALLY MORE CONVERGENCE AND INCREASING DEEP LAYER MOISTURE AND
UPWARD MOTION IS FORECAST TO MOVE EASTWARD ACROSS MAINLY NORTH
CENTRAL ILLINOIS LATE IN THE DAY INTO EARLY EVE AND EASE ITS WAY
EASTWARD THROUGH THE REMAINDER OF THE NIGHT. THIS LOOKS LIKE A
PERIOD OF STORMS MOVING NORTHEAST WITHIN THE DEEP MOIST PLUME.
THE SEVERE POTENTIAL WOULD SEEM MOST FAVORED WITH THE INITIAL
CONVECTION IN THE LATE AFTERNOON/EVE AND THEN A GENERAL WANING
LATER INTO THE NIGHT. LOCALLY HEAVY RAINFALL WILL BE PROBABLE IN
SOME OF THESE STORMS AS THE PWATS ARE FORECAST TO BE AROUND 1.50
INCHES AND DEEP MOISTURE CONVERGENCE WILL BE ORIENTED PARALLEL TO
THE UPPER FLOW. THIS PLUME WILL SHIFT EASTWARD THROUGH TUESDAY
MORNING AND LIKELY POPS CERTAINLY SEEM JUSTIFIED TUESDAY MORNING. IF
THE FRONT IS SLOW ENOUGH SOME AFTERNOON ENHANCEMENT OF A FEW STORMS
COULD HAPPEN IN THE EAST...BUT THIS SEEMS MOST FAVORED EAST OF THE
FORECAST AREA AT THIS TIME.

THE COLD AIR ADVECTION WITH THE COLD FRONT...ALONG WITH POTENTIALLY
SOME ANAFRONTAL SHOWERS...WILL LIKELY LEAD TO FALLING TEMPS IN SOME
PLACES AT LEAST AT TIMES ON TUESDAY.

WEDNESDAY AND BEYOND...
LITTLE CHANGES MADE TO THIS PART OF THE FORECAST DUE TO ONGOING
HIGHER IMPACT WEATHER. LARGE MODEL DIFFERENCES EXIST IN THE WED-THU
TIME FRAME...WITH THE 12Z EC COMING IN SLOWER AND MORE AGGRESSIVE
WITH A LOW RIDING UP THE BAROCLINIC ZONE TO OUR EAST. THIS PROVIDES
WIDESPREAD SHOWERS WEDNESDAY AFTERNOON THROUGH EARLY THURSDAY AND
PARTICULARY COOL TEMPS. WITH AN EC/GFS/GOING FORECAST BLEND THIS
PROVIDES A FEW PERIODS OF CHANCE POPS.

TEMPS TO LOOK TO BE BELOW NORMAL NO MATTER WHICH MODEL VERIFIES IN
THE WED-FRI TIME FRAME. IF CONDITIONS CLEAR AND SURFACE RIDGING
MOVES OVER...POSSIBLY THU NIGHT...THERE PROBABLY WILL BE A CONCERN
FOR FROST.

MTF

&&

.AVIATION...

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

* SHRA/TSRA THROUGH MID EVENING.
* WIND DIRECTIONS THIS EVENING.
* POSSIBLE MVFR CIGS MONDAY MORNING.
* STRONG/GUSTY SOUTHERLY WINDS MONDAY.
* POSSIBLE TSRA LATE MONDAY AFTERNOON/MONDAY EVENING. CMS

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

TSRA HAS CONTINUED TO CONSOLIDATE AND MOVE EAST. ADDITIONAL SHRA
WITH AN OCCASIONAL LIGHTNING STRIKE WILL CONTINUE FOR THE NEXT
HOUR OR TWO. THE BULK OF THIS ACTIVITY IS EXPECTED TO BE EAST OR
SOUTHEAST OF THE CHICAGO AREA TERMINALS BY 02Z-03Z AND HAVE
MAINTAINED SIMILAR TIMING/TRENDS FROM THE PREVIOUS FORECAST.
ANOTHER LINE OF TSRA OVER THE PLAINS WILL NEED TO BE MONITORED AS
IT MOVES EAST OVERNIGHT. CONFIDENCE IS LOW REGARDING HOW FAR EAST
THIS WILL MOVE BEFORE DISSIPATING. SOME OF THE SHORT TERM GUIDANCE
WOULD SUGGEST THAT THIS WILL MAKE IT INTO THE RFD AREA BY DAYBREAK.
INCLUDED A VCSH MENTION THERE BUT FURTHER EAST...MAINTAINED DRY
FORECAST AND TRENDS WILL NEED TO BE MONITORED THROUGH THE NIGHT.
LOW CONFIDENCE CONTINUES FOR PRECIP CHANCES THROUGH SUNSET MONDAY.
WHILE MUCH OF MONDAY LOOKS DRY...ITS POSSIBLE THAT ISOLATED TSRA
MAY DEVELOP ACROSS PARTS OF NORTHERN IL...POSSIBLY REMAINING NORTH
OF THE TERMINALS.

WITH THE LOW LEVELS NOW SATURATED...AS LOW LEVEL MOISTURE
INCREASES...THERE IS A POTENTIAL FOR LOW MVFR CIGS TO DEVELOP
OVERNIGHT AND PERSIST INTO THE MID MORNING HOURS. CONFIDENCE IS
NOT HIGH AND MAINTAINED SCATTERED MENTION FOR NOW.

WINDS WILL SETTLE BACK TO SOUTHEAST AROUND 10KTS THIS EVENING THEN
TURN MORE SOUTHERLY OVERNIGHT WITH THE POTENTIAL FOR SOME GUSTS
INTO THE MID TEEN RANGE. WIND SPEEDS/GUSTS WILL THEN STEADILY
INCREASE THROUGH THE MORNING WITH GUSTS INTO THE MID TO UPPER 20
KT RANGE FOR THE AFTERNOON.

LOW LEVEL WINDS NOW APPEAR LOW ENOUGH OVERNIGHT INTO MONDAY
MORNING THAT LOW LEVEL WIND SHEAR CRITERIA WILL NOT BE MET AND
REMOVED IT FROM THIS FORECAST. CMS

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

* HIGH FOR SHRA/TSRA EARLY THIS EVENING.
* LOW FOR WIND DIRECTIONS THIS EVENING...MEDIUM FOR WINDS FOR THE
  REST OF THE PERIOD.
* LOW FOR MVFR CIGS OVERNIGHT/MONDAY MORNING.
* LOW FOR TSRA LATE MONDAY AFTERNOON/MONDAY NIGHT. CMS

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

* TUESDAY...TSRA LIKELY IN THE MORNING.
* WEDNESDAY...CHANCE OF SHRA.
* THURSDAY...CHANCE OF SHRA.
* FRIDAY...SLIGHT CHANCE OF SHRA.
* SATURDAY...DRY/VFR.

&&

.MARINE...
242 PM...LOW PRESSURE OVER KANSAS WILL MOVE NORTHEAST TO LAKE
SUPERIOR TUESDAY MORNING. AS IT DOES...A WARM FRONT EXTENDING EAST
FROM THE LOW WILL MOVE NORTH ACROSS THE LAKE TONIGHT THROUGH
MONDAY NIGHT...SHIFTING EASTERLY WINDS SOUTHERLY. LOW LEVEL
MOISTURE WILL ALSO BE INCREASING AND AS IT SPREADS ACROSS THE
COOLER LAKE...AREAS OF FOG ARE POSSIBLE AND SOME OF THE FOG MAY
BECOME DENSE. CURRENT WIND SPEEDS ARE FAIRLY LIGHT IN THE 5-15 KT
RANGE AND WILL INCREASE INTO THE 15-25KT RANGE AND REMAIN THERE
UNTIL A COLD FRONT MOVES ACROSS THE LAKE TUESDAY MORNING. THERE IS
A POTENTIAL FOR WINDS TO BE A BIT STRONGER ON MONDAY...ESPECIALLY
WITH THE EASTERLY FLOW NORTH OF THE WARM FRONT ACROSS NORTHERN
LAKE MICHIGAN. THERE REMAINS UNCERTAINTY REGARDING THE POTENTIAL
FOR STRONG NORTHERLY WINDS WEDNESDAY NIGHT INTO THURSDAY AS LOW
PRESSURE DEEPENS MOVING NORTH ACROSS THE GREAT LAKES REGION. THIS
TIME PERIOD WILL NEED TO BE MONITORED FOR HIGHER NORTHERLY WIND
SPEEDS. CMS

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...NONE.
IN...NONE.
LM...NONE.
&&

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Hazardous weather outlook, May 11, 9:06 PM CDT, 9 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
906 PM CDT SUN MAY 11 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
130215-
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-
906 PM CDT SUN MAY 11 2014 /1006 PM EDT SUN MAY 11 2014/

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

.DAY ONE...REST OF TONIGHT.

  WEATHER HAZARDS EXPECTED:

  SCATTERED THUNDERSTORMS...SOME COULD BE SEVERE WITH:
    HAIL UP TO NEAR THE SIZE OF QUARTERS.
    STRONG WINDS OVER 50 MPH.
    TORRENTIAL DOWNPOURS.
    FREQUENT LIGHTNING.

  AREAS AFFECTED AND TIMING:

  A BROKEN LINE OF STORMS WILL GRADUALLY WANE IN INTENSITY ACROSS
  AREAS SOUTH OF THE KANKAKEE RIVER THROUGH EARLY OVERNIGHT.
  SCATTERED THUNDERSTORMS ARE POSSIBLE ELSEWHERE
  OVERNIGHT...MAINLY NORTH CENTRAL ILLINOIS IN THE PRE-DAWN HOURS.

  DISCUSSION:

 WHILE THE SEVERE WEATHER THREAT HAS DIMINISHED...SCATTERED STORMS
 MAY REDEVELOP ACROSS PARTS OF NORTH CENTRAL ILLINOIS LATE TONIGHT
 TO NEAR DAYBREAK. ENOUGH INSTABILITY MAY STILL PRESENT THE CHANCE
 OF LARGE HAIL AND SOME STRONG WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A CHANCE OF THUNDERSTORMS MONDAY...MAINLY ACROSS
NORTHERN ILLINOIS...WITH THE POTENTIAL INCREASING MONDAY NIGHT.
THERE IS A THREAT OF ISOLATED SEVERE THUNDERSTORMS...MAINLY
ACROSS NORTH CENTRAL ILLINOIS. THERE IS A SLIGHT CHANCE THAT
THUNDERSTORMS COULD LINGER THROUGH EARLY TUESDAY AFTERNOON OVER
NORTHWEST INDIANA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS UNLIKELY OVERNIGHT.

&&

LMZ740>745-130215-
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-
906 PM CDT SUN MAY 11 2014

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

.DAY ONE...REST OF TONIGHT.

ISOLATED THUNDERSTORMS ARE POSSIBLE...SOME OF WHICH MAY PRODUCE
WIND GUSTS IN EXCESS OF 35 KT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A CHANCE OF THUNDERSTORMS MONDAY...WITH THE THREAT OF
THUNDERSTORMS INCREASING MONDAY NIGHT AND POTENTIALLY LINGERING
INTO TUESDAY MORNING. SOME THREAT DOES EXISTS FOR THUNDERSTORMS
MONDAY NIGHT TO PRODUCE WIND GUSTS OVER 35 KNOTS.

STRONG WINDS WILL LEAD TO HAZARDOUS CONDITIONS FOR SMALL CRAFT
MONDAY.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-130215-
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-
906 PM CDT SUN MAY 11 2014

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

.DAY ONE...REST OF TONIGHT.

SCATTERED THUNDERSTORMS ARE POSSIBLE ACROSS MUCH OF THE LAKE. SOME
OF THESE COULD PRODUCE WIND GUSTS IN EXCESS OF 35 KT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS ARE POSSIBLE MONDAY THROUGH TUESDAY MORNING...SOME
MAY BE SEVERE.

DENSE FOG IS POSSIBLE MONDAY AND MONDAY NIGHT.

&&

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, May 11, 8:34 PM CDT, 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
834 PM CDT SUN MAY 11 2014

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

0804 PM     FLOOD            HIGHLAND                41.55N 87.46W
05/11/2014                   LAKE               IN   EMERGENCY MNGR

            7 INCHES OF STANDING WATER ON ROAD NEAR MARTHA STREET AND
            HIGHLAND PLACE.

&&

RC
Local storm report, May 11, 8:42 PM CDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
842 PM CDT SUN MAY 11 2014

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

0704 PM     FLASH FLOOD      BURR RIDGE              41.75N 87.92W
05/11/2014                   COOK               IL   DEPT OF HIGHWAYS

            INTERSTATE 55 WAS CLOSED BETWEEN INTERSTATE 294 AND IL
            ROUTE 171 DUE TO FLOODING.

&&

RC
Local storm report, May 11, 8:52 PM CDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
852 PM CDT SUN MAY 11 2014

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

0545 PM     TSTM WND DMG     REDDICK                 41.10N 88.25W
05/11/2014                   KANKAKEE           IL   TRAINED SPOTTER

            3 WOODEN POWER POLES DOWN ON 19522 WEST ON 2000 SOUTH
            ROAD. ESTIMATED 60 MPH WIND GUSTS.

&&

RC
Local storm report, May 11, 8:53 PM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
853 PM CDT SUN MAY 11 2014

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

0840 PM     HEAVY RAIN       1 NE NEW LENOX          41.53N 87.97W
05/11/2014  M1.76 INCH       WILL               IL   COCORAHS

            STORM TOTAL BETWEEN 610 PM AND 840 PM.

&&

RC
Local storm report, May 11, 8:59 PM CDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
859 PM CDT SUN MAY 11 2014

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

0840 PM     HEAVY RAIN       1 NE NEW LENOX          41.53N 87.97W
05/11/2014  M1.76 INCH       WILL               IL   COCORAHS

            STORM TOTAL BETWEEN 610 PM AND 840 PM.

0807 PM     TORNADO          4 W RENSSELAER          40.94N 87.23W
05/11/2014                   JASPER             IN   FIRE DEPT/RESCUE

            REPORT OF ROTATION ON THE GROUND...SPOTTED FROM I-65 AND
            HIGHWAY 114. RELAYED THROUGH COUNTY DISPATCH.

0804 PM     FLASH FLOOD      LAKE STATION            41.57N 87.26W
05/11/2014                   LAKE               IN   LAW ENFORCEMENT

            5 TO 6 INCHES OF FLOWING WATER ON SOME AREA
            ROADWAYS...INCLUDING CENTRAL...FAIRVIEW...GRANDVIEW.

0804 PM     FLOOD            HIGHLAND                41.55N 87.46W
05/11/2014                   LAKE               IN   EMERGENCY MNGR

            7 INCHES OF STANDING WATER ON ROAD NEAR MARTHA STREET AND
            HIGHLAND PLACE.

0757 PM     FUNNEL CLOUD     BROOK                   40.87N 87.37W
05/11/2014                   NEWTON             IN   PUBLIC

0750 PM     TSTM WND DMG     LAKE STATION            41.57N 87.26W
05/11/2014                   LAKE               IN   PUBLIC

            8 TO 10 INCH TREE UPROOTED ON HUNTINGTON ST. SOCIAL MEDIA

0745 PM     HEAVY RAIN       ALSIP                   41.67N 87.74W
05/11/2014  M1.89 INCH       COOK               IL   COCORAHS

            AMOUNT OF RAINFALL IN THE PAST 90 MINUTES.

0745 PM     HEAVY RAIN       E ALSIP                 41.67N 87.74W
05/11/2014  M1.89 INCH       COOK               IL   COCORAHS

            RAINFALL IN 90 MINUTES.

0744 PM     FLASH FLOOD      HAMMOND                 41.62N 87.49W
05/11/2014                   LAKE               IN   EMERGENCY MNGR

            5 TO 6 INCHES OF FLOWING WATER. MANHOLE COVERS BEING
            FORCED OUT. 131ST STREET SHEFFIELD/CALUMET AND
            165TH/167TH STREETS.

0740 PM     TSTM WND GST     3 NE TOWN OF PINES      41.73N 86.91W
05/11/2014  M61.00 MPH       PORTER             IN   C-MAN STATION

            MICHIGAN CITY C-MAN STATION.

0739 PM     FLOOD            HIGHLAND                41.55N 87.46W
05/11/2014                   LAKE               IN   TRAINED SPOTTER

            4 TO 5 INCHES OF FLOWING WATER IN PARKING LOTS. CLINE
            AVENUE AND RIDGE ROAD.

0727 PM     FLOOD            ORLAND PARK             41.61N 87.85W
05/11/2014                   COOK               IL   PUBLIC

            4 TO 5 INCHES ON ROADWAY AT 145TH ST AND WEST AVE.

0727 PM     FLASH FLOOD      LAKE STATION            41.57N 87.26W
05/11/2014                   LAKE               IN   EMERGENCY MNGR

            2 FEET OF STANDING WATER. VEHICLES STALLED IN WATER ON
            GRANT BOULEVARD.

0726 PM     FLOOD            ORLAND PARK             41.61N 87.85W
05/11/2014                   COOK               IL   TRAINED SPOTTER

            ROAD UNDERWATER UP TO YARDS. 4 TO 5 INCHES OF STANDING
            WATER.

0715 PM     TSTM WND DMG     4 NE BURNS HARBOR       41.66N 87.06W
05/11/2014                   PORTER             IN   PARK/FOREST SRVC

            AT INDIANA DUNES STATE PARK. DOWNED TREE.

0712 PM     HAIL             2 SW CHICAGO            41.86N 87.66W
05/11/2014  E0.75 INCH       COOK               IL   PUBLIC

            ALSO HEAVY RAINFALL.

0710 PM     TSTM WND GST     CHESTERTON              41.60N 87.06W
05/11/2014  M70.00 MPH       PORTER             IN   TRAINED SPOTTER

            TRANSFORMER BLEW.

0710 PM     TSTM WND DMG     NEW LENOX               41.52N 87.98W
05/11/2014                   WILL               IL   TRAINED SPOTTER

            TREE SNAPPED AT ROOTS AT COOPER AND ELM.

0704 PM     FLASH FLOOD      BURR RIDGE              41.75N 87.92W
05/11/2014                   COOK               IL   DEPT OF HIGHWAYS

            INTERSTATE 55 WAS CLOSED BETWEEN INTERSTATE 294 AND IL
            ROUTE 171 DUE TO FLOODING.

0702 PM     HAIL             MERRILLVILLE            41.47N 87.33W
05/11/2014  E0.88 INCH       LAKE               IN   TRAINED SPOTTER

            ALSO FIELDS FLOODED WITH 2 TO 3 INCHES OF WATER. 53RD AND
            MAIN STREET.

0700 PM     TSTM WND DMG     PORTAGE                 41.59N 87.18W
05/11/2014                   PORTER             IN   TRAINED SPOTTER

            SOME LARGE TREES DOWN IN PORTAGE AND SOUTH HAVEN.
            LOCATIONS OF DOWNED TREES INCLUDE STONE AVE AND
            WILLOWDALE STREET.

0656 PM     TSTM WND DMG     LAKE STATION            41.57N 87.26W
05/11/2014                   LAKE               IN   TRAINED SPOTTER

            POWERLINES DOWN AND TREES DOWN AND 8 INCH DIAMETER TREE
            LIMB ON TOP OF HOUSE 3117 MARTHA STREET.

0653 PM     HEAVY RAIN       HOMEWOOD                41.56N 87.66W
05/11/2014  M0.87 INCH       COOK               IL   COCORAHS

            RAINFALL SO FAR AND ALL FELL IN 25 MINUTES.

0650 PM     HEAVY RAIN       2 NNW BURNHAM           41.66N 87.55W
05/11/2014  M1.25 INCH       COOK               IL   COCORAHS

            RAINFALL IN 20 MINUTES UP TO REPORT TIME.

0650 PM     TSTM WND GST     GARY                    41.60N 87.34W
05/11/2014  M78.00 MPH       LAKE               IN   TRAINED SPOTTER

            MEASURED GUST TO 68 KNOTS AT THE GARY AIRPORT.

0645 PM     HEAVY RAIN       1 NE NEW LENOX          41.53N 87.97W
05/11/2014  M1.28 INCH       WILL               IL   COCORAHS

            RAINFALL SO FAR FELL IN 35 MINUTES.

0639 PM     TSTM WND GST     CHICAGO                 41.88N 87.63W
05/11/2014  E60.00 MPH       COOK               IL   TRAINED SPOTTER

            CHICAGO HEGWISH AREA.

0639 PM     HAIL             CHICAGO                 41.88N 87.63W
05/11/2014  E1.00 INCH       COOK               IL   TRAINED SPOTTER

            CHICAGO HEGWISH AREA.

0637 PM     HAIL             2 NNW BURNHAM           41.66N 87.56W
05/11/2014  E0.50 INCH       COOK               IL   COCORAHS

0634 PM     TSTM WND GST     SOUTH HOLLAND           41.60N 87.60W
05/11/2014  M63.00 MPH       COOK               IL   TRAINED SPOTTER

            INTERSTATE 294.

0632 PM     TSTM WND DMG     JOLIET                  41.53N 88.12W
05/11/2014                   WILL               IL   LAW ENFORCEMENT

            ROOF LOSS...BUT EXTENT UNKNOWN...AT HOTEL AT 4200 WEST
            JERFFERSON.

0628 PM     FLOOD            WILLOWBROOK             41.76N 87.95W
05/11/2014                   DUPAGE             IL   TRAINED SPOTTER

            ON I-55 SOUTH AT EXIT 274.

0625 PM     HEAVY RAIN       3 SW MIDWAY AIRPORT     41.75N 87.79W
05/11/2014  M1.17 INCH       COOK               IL   CO-OP OBSERVER

            RAIN BETWEEN 6PM AND 625 PM.

0624 PM     FLOOD            ZION                    42.46N 87.84W
05/11/2014                   LAKE               IL   TRAINED SPOTTER

            APPROXIMATELY 8 INCHES OF WATER OVERFLOWING CURB NEAR
            31ST STREET AND ELISHA AVE.

0614 PM     TSTM WND GST     PEOTONE                 41.33N 87.80W
05/11/2014  M52.00 MPH       WILL               IL   CO-OP OBSERVER

            DELAYED REPORT.

0610 PM     HAIL             PONTIAC                 40.88N 88.64W
05/11/2014  E0.50 INCH       LIVINGSTON         IL   TRAINED SPOTTER

0604 PM     TSTM WND GST     6 WNW MARSEILLES        41.36N 88.79W
05/11/2014  M68.00 MPH       LA SALLE           IL   COCORAHS

0604 PM     HEAVY RAIN       6 WNW MARSEILLES        41.36N 88.79W
05/11/2014  M1.09 INCH       LA SALLE           IL   COCORAHS

            RAIN FELL IN 15 MINUTES.

0556 PM     HAIL             CEDAR POINT             41.26N 89.13W
05/11/2014  E0.50 INCH       LA SALLE           IL   TRAINED SPOTTER

            5 MILES SOUTH OF I-80 AND 3 MILES WEST OF I-39.

0545 PM     TSTM WND DMG     REDDICK                 41.10N 88.25W
05/11/2014                   KANKAKEE           IL   TRAINED SPOTTER

            3 WOODEN POWER POLES DOWN ON 19522 WEST ON 2000 SOUTH
            ROAD. ESTIMATED 60 MPH WIND GUSTS.

0545 PM     TSTM WND GST     BONFIELD                41.15N 88.06W
05/11/2014  M40.00 MPH       KANKAKEE           IL   TRAINED SPOTTER

            487 N AND 13000 W RD.

0541 PM     TSTM WND GST     GARDNER                 41.19N 88.31W
05/11/2014  E50.00 MPH       GRUNDY             IL   TRAINED SPOTTER

            ROUTE 47 AND GARDNER ROAD. SMALL TREE LIMBS DOWN.

0528 PM     TSTM WND GST     GRAYSLAKE               42.35N 88.04W
05/11/2014  M68.00 MPH       LAKE               IL   EMERGENCY MNGR

            .6 MILES NW OF ROUTE 60 AND PETERSON ROAD NEAR BORDER OF
            GRAYSLAKE AND ROUND LAKE PARK.

0523 PM     HAIL             2 NNE WAUCONDA          42.29N 88.12W
05/11/2014  E0.50 INCH       LAKE               IL   COCORAHS

0523 PM     HAIL             EMINGTON                40.97N 88.36W
05/11/2014  E1.00 INCH       LIVINGSTON         IL   TRAINED SPOTTER

            LASTED ABOUT 4 MINUTES.

0521 PM     HAIL             LAKEMOOR                42.34N 88.20W
05/11/2014  E0.75 INCH       MCHENRY            IL   TRAINED SPOTTER

0451 PM     HAIL             SW WOODSTOCK            42.31N 88.44W
05/11/2014  E0.88 INCH       MCHENRY            IL   TRAINED SPOTTER

            NICKEL SIZE HAIL NEAR ROUTE 176 AND FRANKLINVILLE ROADS.

0445 PM     HAIL             UNION                   42.23N 88.54W
05/11/2014  E1.00 INCH       MCHENRY            IL   TRAINED SPOTTER

            QUARTER SIZE NEAR FRANKLIN AND KIRKLAND ROADS.

0440 PM     HAIL             BOLINGBROOK             41.70N 88.08W
05/11/2014  E0.25 INCH       WILL               IL   TRAINED SPOTTER

            PEA TO MARBLE SIZED HAIL AT ROUTE 53 AND BOUGHTON ROAD.

0440 PM     HAIL             MARENGO                 42.25N 88.60W
05/11/2014  E1.25 INCH       MCHENRY            IL   TRAINED SPOTTER

0440 PM     TSTM WND GST     BOLINGBROOK             41.70N 88.08W
05/11/2014  M52.00 MPH       WILL               IL   TRAINED SPOTTER

            MEASURED GUST TO 52 MPH AT ROUTE 53 AND BOUGHTON ROAD.

0438 PM     TSTM WND GST     SUGAR GROVE             41.77N 88.46W
05/11/2014  M59.00 MPH       KANE               IL   ASOS

            MEASURED GUST TO 59 MPH AT SUGAR GROVE/AURORA AIRPORT.

0435 PM     HAIL             ROMEOVILLE              41.65N 88.09W
05/11/2014  E0.25 INCH       WILL               IL   OFFICIAL NWS OBS

            PEA SIZE HAIL AT NWS OFFICE.

0428 PM     HAIL             CREST HILL              41.57N 88.11W
05/11/2014  E0.50 INCH       WILL               IL   PUBLIC

            DIME SIZED HAIL AT GAYLORD AND RENWICK. VIA FACEBOOK.

0425 PM     HAIL             3 WSW MARENGO           42.23N 88.65W
05/11/2014  E0.88 INCH       MCHENRY            IL   PUBLIC

            DIME TO NICKEL SIZE HAIL NEAR THE BOONE/MCHENRY COUNTY
            LINE.

0422 PM     HAIL             JOLIET                  41.53N 88.12W
05/11/2014  E0.50 INCH       WILL               IL   TRAINED SPOTTER

            PEA TO MARBLE SIZED HAIL NEAR CATON FARM AND ESSINGTON
            ROADS.

0409 PM     HAIL             HARMON                  41.72N 89.56W
05/11/2014  E0.88 INCH       LEE                IL   TRAINED SPOTTER

0338 PM     HAIL             ROCKFORD AIRPORT        42.20N 89.10W
05/11/2014  M0.50 INCH       WINNEBAGO          IL   TRAINED SPOTTER

0336 PM     TSTM WND GST     ROCKFORD AIRPORT        42.20N 89.10W
05/11/2014  M48.00 MPH       WINNEBAGO          IL   ASOS

0328 PM     HAIL             3 W POPLAR GROVE        42.37N 88.88W
05/11/2014  E1.00 INCH       BOONE              IL   CO-OP OBSERVER

            NICKEL TO QUARTER SIZE HAIL IN CALEDONIA.

0315 PM     HAIL             LOVES PARK              42.34N 89.01W
05/11/2014  E0.88 INCH       WINNEBAGO          IL   TRAINED SPOTTER

0310 PM     HAIL             LOVES PARK              42.34N 89.01W
05/11/2014  E0.25 INCH       WINNEBAGO          IL   TRAINED SPOTTER

            NEAR N. SECOND AND RIVERSIDE ROADS.

0302 PM     HAIL             ROCKFORD                42.27N 89.06W
05/11/2014  E0.88 INCH       WINNEBAGO          IL   TRAINED SPOTTER

            ROCKTON AND GLENWOOD ROADS.

0255 PM     HAIL             WINNEBAGO               42.27N 89.24W
05/11/2014  E0.25 INCH       WINNEBAGO          IL   BROADCAST MEDIA

            NEAR MERIDIAN AND AUBURN ROADS.

0250 PM     TSTM WND DMG     1 W WINNEBAGO           42.27N 89.26W
05/11/2014                   WINNEBAGO          IL   BROADCAST MEDIA

            TWO POWER POLES AND WIRES DOWN 1.5 MILES WEST OF
            WINNEBAGO NEAR CUNNINGHAM AND OSBORNE ROADS.

0250 PM     HAIL             ROCKFORD                42.27N 89.06W
05/11/2014  E0.25 INCH       WINNEBAGO          IL   TRAINED SPOTTER

            PEA SIZE HAIL NEAR ROUTE 20 AND MERIDIAN ROAD.

0233 PM     HAIL             WINNEBAGO               42.27N 89.24W
05/11/2014  E0.25 INCH       WINNEBAGO          IL   BROADCAST MEDIA

&&

RC
Local storm report, May 11, 9:06 PM CDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
906 PM CDT SUN MAY 11 2014

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

0841 PM     FLASH FLOOD      PORTAGE                 41.59N 87.18W
05/11/2014                   PORTER             IN   TRAINED SPOTTER

            WATER UP TO PICKUP TRUCK DOORS ON WILLOW CREEK ROAD SOUTH
            OF ROUTE 6.

&&

RC

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 7:43 PM CDTSevere Thunderstorm WarningLOTIroquois62 min
May 11, 7:58 PM CDTFlash Flood WarningLOTFord, Livingston3 hr
May 11, 9:16 PM CDTRiver Flood AdvisoryLOTWill53 hr
May 11, 11:09 PM CDTSevere Thunderstorm WarningLOTFord, Iroquois51 min
May 12, 9:09 AM CDTSmall Craft AdvisoryLOT12 hr
May 12, 9:34 AM CDTMarine Dense Fog AdvisoryLOT23 hr
May 12, 2:56 PM CDTSevere Thunderstorm WarningLOTBoone, Winnebago49 min
May 12, 5:53 PM CDTSevere Thunderstorm WarningLOTLaSalle67 min
May 12, 6:15 PM CDTSpecial Weather StatementLOTLake45 min
May 12, 6:20 PM CDTSpecial Marine WarningLOT85 min
May 12, 6:27 PM CDTSevere Thunderstorm WarningLOTCook, Lake48 min
May 12, 6:32 PM CDTSevere Thunderstorm WarningLOTDeKalb, LaSalle58 min
May 12, 6:39 PM CDTSevere Thunderstorm WarningLOTCook, DuPage36 min
May 11, 7:03 PM CDTSevere Thunderstorm WarningLOTPorter42 min
May 11, 7:39 PM CDTFlash Flood WarningLOTJasper, Lake, Newton, Porter6 hr
May 11, 7:54 PM CDTTornado WarningLOTJasper, Newton51 min

Nearby

Flash Flood Warnings in Indiana, 2014Flash Flood Warnings in Illinois, 2014Every flash flood warning in 2014

Sources

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