Flooding and Hail in Illinois, June 7, 2015

Name: Flooding and Hail in Illinois, June 7, 2015
Start: 2015-06-07T14:48
End: 2015-06-07T18:00
Location: Illinois

June 7, 2015 · NWS LOT · 10 events in 5 counties and zones

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $50,000
Crop damage: None recorded
Events: 10

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS LOT wrote it up.

After a morning complex of non-severe storms on June 7th, redeveloping storms in the early afternoon intensified just south of I-80 and slowly evolved southeastward through the night, producing heavy rainfall rates and at times severe straight-line winds. Widespread rainfall of one and a half to four inches, with isolated totals higher fell across areas south of I-80. This produced flooding and flash flooding. Scattered reports of roads closed during Sunday mid-afternoon through evening were received. There were a couple reports of water rescues and stranded vehicles.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Jun 7, 2:24 PM CST, 24 minutes earlier.

Area forecast discussion, Jun 7, 2:24 PM CST, 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
324 PM CDT SUN JUN 7 2015

.SHORT TERM...
153 PM CDT

MESOSCALE DISCUSSION...THROUGH THIS EVENING

SHORTWAVE OVER EASTERN IOWA CONTINUES TO PROGRESS STEADILY
EASTWARD AND LOOKING REASONABLY LIKELY THAT ADDED ASCENT WITH THIS
FEATURE WILL BE ENOUGH FOR CONVECTIVE INITIATION OVER THE NEXT
HOUR OR TWO NEAR AND JUST NORTH OF REMNANT OUTFLOW BOUNDARY FROM
THIS MORNING. THIS BOUNDARY EXTENDS FROM BENTON COUNTY WEST TO
SOUTH OF PONTIAC THEN BECOMES INCREASINGLY ILL DEFINED AS IT
EXTENDS WNW TOWARD QUAD CITIES.

AIR MASS TO THE SOUTH OF THE BOUNDARY IS GROWING VERY
WARM...HUMID AND UNSTABLE WITH TEMPS CLIMBING INTO THE MID-UPPER
80S AND DEWPOINTS INTO THE LOWER 70S. THE 18 ILX SOUNDING SUGGESTS
THAT MLCAPE VALUES ARE NEARING 2000 J/KG NEAR AND SOUTH OF THE
OUTFLOW BOUNDARY. MID LEVEL FLOW IS FAIRLY STRONG FOR THIS TIME OF
YEAR WITH 700-500MB FLOW OF 35-45KT NOTED ON AREA VWPS RESULTING
IN 0-6KM SHEAR VALUES OF 35-40KT. WOULD LIKE TO SEE MORE MID-LEVEL
DRY AIR TO ENCOURAGE QUICK DEVELOPMENT OF COLD POOL...BUT GIVEN
THE INSTABILITY SHEAR COMBO CERTAINLY A THREAT OF SEVERE
THUNDERSTORMS WITH MAIN THREAT DAMAGING WINDS.

SPECIAL GOES-R 1 MIN RESOLUTION VISIBLE IMAGERY DOES SHOW SLOWLY
DEEPENING CUMULUS FIELD OVER WC IL IN ADVANCE OF THE SHORTWAVE AND
THIS COULD BE THE FIRST SIGNS OF MORE SIGNIFICANT CONVECTIVE
DEVELOPMENT. STILL APPEARS GREATEST SEVERE THREAT WILL BE SOUTH OF
I-80 SO NO BIG CHANGES PLANNED TO GOING POPS.

IZZI

&&

.LONG TERM...
324 PM CDT

MONDAY THROUGH SUNDAY...

PRIMARY CONCERN ON MONDAY IS WITH THE POTENTIAL FOR FAIRLY
WIDESPREAD COVERAGE OF SCATTERED SHRA/TSRA AS MID/UPPER
DISTURBANCE DIVES SOUTHEAST IN UPPER TROUGH AXIS DIGGING ACROSS
THE GREAT LAKES REGION. DAY WILL START OUT QUIET WITH EXCEPTION OF
ANY LINGERING CONVECTION IN SOUTHEAST CWA TIED TO COLD FRONT
PASSAGE EXITING TO THE EAST. 850/925 MB TEMPS SUPPORT HIGHS
REACHING THE LOWER-MID 80S AND MODELS ARE SHOWING MIXING POSSIBLY
TO 750 MB OR EVEN A BIT HIGHER. HAVE GONE WITH LIKELY POPS FOR A
FAIRLY LARGE SWATH OF THE CWA/EASTERN 2/3 ESPECIALLY DURING THE
MID-LATE AFTERNOON AS THE SHEARED OUT DISTURBANCE RESULTS IN AN
UPTICK IN UPWARD MOTION. DEWPOINTS ONLY IN THE UPPER 50S TO LOWER
60S WILL LIMIT CAPE VALUES TO THE GENERALLY 500-1000 J/KG...BUT
PRESENCE OF 30-40 KT OF NORTHWESTERLY DEEP LAYER SHEAR COULD AID
IN A FEW STRONG TO MARGINALLY SEVERE STORMS. MAIN THREAT WOULD BE
STRONG WIND GUSTS DUE TO STEEP LOW LEVEL LAPSE RATES AND HAIL DUE
TO COLD MIDLEVEL TEMPS FROM MID/UPPER TROUGH. ACTIVITITY WILL BE
DIURNALLY DRIVEN AND LOSS OF LIFT FROM EXITING TROUGH MONDAY
EVENING SHOULD QUICKLY END ANY LINGERING SHOWERS...SO THE REST OF
MONDAY NIGHT WILL BE QUIET AND SEASONABLY MILD.

ON TUESDAY...HEIGHT RISES AND WEAK SFC HIGH PRESSURE TRANSITING
THE AREA WILL RESULT IN A DRY AND WARM DAY WITH HIGHS LIKELY IN
THE MID 80S DUE TO 925 MB TEMPS BETWEEN +20 AND +22 CELSIUS.
EXCEPTION COULD BE PORTIONS OF LAKESHORE AS WEST-NORTHWEST FLOW
ALOFT COULD WEAKEN ENOUGH TO LET A WEAK LAKE BREEZE SLIP IN TO
IMMEDIATE SHORE AREAS FROM COOK COUNTY TO NORTHWEST INDIANA.
TUESDAY NIGHT WILL BE QUITE MILD AS A STRONG LOW PRESSURE SYSTEM
MOVES NORTH OF THE NORTHERN LAKES...RESULTING IN STEADY TO
OCCASIONALLY GUSTY SOUTH-SOUTHWEST FLOW. VERY WARM AIRMASS WILL
GET ADVECTED EASTWARD AHEAD OF COLD FRONT TRAILING FROM LOW
PRESSURE AREA. 850 TEMPS IN HIGH TEENS CELSIUS AND 925 MB TEMPS IN
LOWER-MID 20S CELSIUS WILL YIELD AT LEAST MID-UPPER 80S NORTH OF
I-80 AND AROUND 90 SOUTH...WITH WARMER TEMPS CERTAINLY POSSIBLE IF
SLOWER FROPA VERIFIES. GIVEN UNCERTAINTY OF FRONTAL TIMING AND
LACK OF UPPER SUPPORT...HAVE KEPT POPS LOW TUESDAY NIGHT INTO
WEDNESDAY.

THE REST OF THE EXTENDED PERIOD LOOKS ON THE WARMER SIDE WITH
PERIODIC OPPORTUNITIES FOR THUNDERSTORMS...SO HAVE CHANCE POPS
THROUGHOUT GENERALLY. HOWEVER WOULD NOT EXPECT ANY DAYS TO BE
TOTAL WASHOUTS. 12Z OPERATIONAL RUNS OF THE GFS AND EUROPEAN DO
INDICATE A POSSIBLY STRONGER UPPER TROUGH AND SFC REFLECTION
PASSING NEARBY THURSDAY NIGHT THROUGH FRIDAY...SO MAY HAVE TO
WATCH THAT PERIOD FOR STRONGER CONVECTION.

RC

&&

.AVIATION...

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

* CHANCE FOR REDEVELOPING TSRA THIS AFTERNOON.
* GUSTY SOUTHWEST WINDS INTO THE MID 20KT RANGE.

BMD

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

FORECAST DETAILS FOR THIS AFTERNOON CONTINUE TO REMAIN MURKY WITH
PRETTY MUCH ALL GUIDANCE NOT INITIALIZING WELL ON THE CURRENT
CONDITIONS. INITIAL ROUND OF CONVECTION THIS MORNING HAS BECOME
MORE SCATTERED HOWEVER PROGRESSED FAR ENOUGH EAST/SOUTHEAST TODAY
THAT SECOND ROUND OF DEVELOPMENT REMAINS UNCERTAIN. OUTFLOW
BOUNDARY LAYED OUT WEST-EAST ACROSS PORTIONS OF CENTRAL AND EAST
CENTRAL ILLINOIS THOUGH HAS BEGAN TO WAVE BACK NORTH ON THE NOSE
OF GUSTY SOUTHWEST WINDS. OFF TO OUR SOUTHWEST MID-UPPER 70 TEMPS
WITH UPPER 60/LOW 70 DEWPOINTS ARE GRADUALLY PUSHING NORTHEAST AND
THIS AREA WOULD SEEM TO BE THE FAVORABLE AREA FOR RENEWED AND
POSSIBLY SEVERE THUNDERSTORM DEVELOPMENT THIS AFTERNOON AS UPPER
SHORTWAVE ABOUT TO CROSS THE MISSISSIPPI VALLEY PROVIDES BROAD
SCALE ASCENT OVER THE REGION. MAIN QUESTION IS HOW FAR NORTH DO
THUNDERSTORMS DEVELOP WITH THIS NEXT WAVE AND CURRENT INDICATIONS
ARE THAT IT MAY BE NEAR BUT MORE LIKELY SOUTH OF THE I-80
CORRIDORS...WITH ONLY ISOLATED/WIDELY SCATTERED ACTIVITY FARTHER
NORTH. DID TRY TO TEMPER THE FORECAST SOME BY BACKING OFF FROM
PREVAILING TSRA TO TEMPO TSRA BUT CONFIDENCE AT THIS POINT
CONTINUES TO DECREASE ON TSRA...ESPECIALLY AT ORD.

LOOKING AT TOMORROW...ANOTHER WAVE WILL DROP ACROSS THE AREA WITH
THE POTENTIAL FOR HIGH BASED THUNDERSTORMS TO DEVELOP. BREEZY
NORTHWEST WINDS ARE EXPECTED TOMORROW ALONG WITH PRIMARILY VFR
CONDITIONS.

BMD

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

* MEDIUM CONFIDENCE ON TSRA TIMING...BUT LOW CONFIDENCE IN
  COVERAGE.

BMD

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

MONDAY NIGHT-TUESDAY...VFR. WEST WINDS.
WEDNESDAY...CHANCE OF TSRA. WEST WINDS.
THURSDAY...CHANCE OF TSRA. NORTHEAST WINDS.
FRIDAY-SATURDAY...CHANCE OF TSRA. SOUTH WINDS.

MTF/BMD

&&

.MARINE...
148 AM CDT

AS LOW PRESSURE MOVES FROM MINNESOTA INTO THE UPPER GREAT LAKES
REGION TODAY...CORRESPONDING PRESSURE FALLS WILL DRIVE STRONG
SOUTHWEST WINDS. GUSTS WILL BE TEMPERED SOME OVER THE STABLE
MARINE LAYER...BUT NORTHERN PARTS OF THE LAKE MAY STILL REALIZE
GUSTS TO 30 KT. OFFSHORE FLOW INTO THE NEARSHORE AREAS OF
ILLINOIS AND INDIANA IS FORECAST TO BE STRONG ENOUGH FOR SMALL
CRAFT ADVISORY CRITERIA TODAY. WHILE LIKELY MORNING SHOWERS AND
SOME STORMS WILL PARTIALLY DISRUPT THIS UNDERLYING WIND FLOW
ACROSS THESE NEARSHORES...THE SOUTH-SOUTHWEST WINDS ARE EXPECTED
TO RECOVER SHORTLY AFTER. ANY OF THE STORMS TODAY...ESPECIALLY
THOSE THAT DEVELOP IN THE AFTERNOON...HAVE THE POTENTIAL TO
PRODUCE 35 KT+ GUSTS. THE LOW WILL SWING A COLD FRONT ACROSS THE
LAKE NEAR SUNDOWN WHICH WILL TURN WINDS WESTERLY...THOUGH THE
GRADIENT BEHIND THE FRONT IS WEAKER THAN AHEAD...SO WIND SPEEDS
SHOULD ACTUALLY COME DOWN LATE THIS EVENING INTO OVERNIGHT.

A STRONG LOW WILL MOVE ACROSS THE SOUTHERN CANADIAN PRAIRIE PROVINCES
TUESDAY NIGHT AND NORTH OF THE LAKES EARLY WEDNESDAY. THE
GRADIENT AROUND THIS FEATURE WILL INCREASE SOUTHERLY WINDS TUESDAY
NIGHT...ESPECIALLY ACROSS THE NORTH.

MTF

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...NONE.
IN...NONE.
LM...SMALL CRAFT ADVISORY...NEARSHORE WATERS
     UNTIL 7 PM SUNDAY.

&&

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, Jun 7, 10:27 AM CST, 4 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1127 AM CDT SUN JUN 7 2015

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
081630-
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-
1127 AM CDT SUN JUN 7 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  THUNDERSTORMS CAPABLE OF:
   LOCALLY RAINFALL AND POSSIBLE FLASH FLOODING.
   DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
   HAIL TO THE SIZE OF QUARTERS.

  AREAS AFFECTED AND TIMING:

  PERIODIC THUNDERSTORMS WILL CONTINUE THROUGH THIS
  EVENING...WITH THE HIGHEST CHANCES AND GREATEST COVERAGE
  EXPECTED SOUTH OF INTERSTATE 80.

  DISCUSSION:

  SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO PERCOLATE
  UPWARD FROM TIME TO TIME...PARTICULARLY SOUTH OF INTERSTATE 80
  WHICH WILL BE CLOSER TO THE LEFT OVER OUTFLOW BOUNDARY FROM
  THIS MORNINGS THUNDERSTORMS. SEASONABLY STRONG UPPER LEVEL
  WINDS AND SLOWLY BUILDING INSTABILITY AS TEMPERATURES RISE WILL
  RESULT IN A GRADUALLY INCREASING...THOUGH STILL NOT ALL THAT
  HIGH OF A THREAT OF SEVERE THUNDERSTORM DEVELOPMENT THIS
  AFTERNOON AND INTO THE EARLY EVENING. VERY MOIST CONDITIONS
  ALONG WITH THE POTENTIAL FOR REPEATED THUNDERSTORM DEVELOPMENT
  SUGGESTS THERE IS A THREAT OF LOCALLY VERY HEAVY RAINFALL
  TOTALS WHICH COULD RESULT IN SOME FLASH FLOODING.

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

SCATTERED THUNDERSTORMS ARE POSSIBLE ON MONDAY. SOME OF THESE
STORMS COULD BE STRONG WITH GUSTY WINDS AND POSSIBLY SOME
MARGINALLY SEVERE HAIL.

THERE IS ALSO A CHANCE FOR THUNDERSTORMS WEDNESDAY THROUGH
SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH TONIGHT...ESPECIALLY
SOUTH OF INTERSTATE 80.

&&

LMZ740>745-081630-
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-
1127 AM CDT SUN JUN 7 2015

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.

WINDS HAZARDOUS TO SMALL CRAFT ARE LIKELY THROUGH THIS
AFTERNOON.

IN ADDITION...SCATTERED THUNDERSTORMS ARE POSSIBLE INTO THIS
EVENING...SOME OF WHICH MAY PRODUCE GUSTS IN EXCESS OF 35 KNOTS.

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

THERE IS A CHANCE OF THUNDERSTORMS MONDAY. PERIODIC THUNDERSTORMS
ARE POSSIBLE MIDWEEK THROUGH NEXT WEEKEND.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-081630-
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-
1127 AM CDT SUN JUN 7 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS TODAY...MAINLY ACROSS THE
SOUTHERN HALF OF THE LAKE.

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

THERE IS A CHANCE OF THUNDERSTORMS MONDAY AND TUESDAY NIGHT.
THERE ARE THEN PERIODIC THUNDERSTORM CHANCES MIDWEEK THROUGH NEXT
WEEKEND.

&&

IZZI

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

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSCHICAGO
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In the hours before

Local storm report, Jun 7, 9:00 AM CST, 5 hours 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT SUN JUN 07 2015

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

1000 AM     HEAVY RAIN       STREATOR                41.13N 88.83W
06/07/2015  M1.18 INCH       LA SALLE           IL   PUBLIC

&&

IZZI

Local storm report, Jun 7, 10:31 AM CST, 4 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1131 AM CDT SUN JUN 07 2015

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

1120 AM     HEAVY RAIN       2 SSE PLAINFIELD        41.59N 88.19W
06/07/2015  M1.12 INCH       WILL               IL   COCORAHS

&&

C

Local storm report, Jun 7, 11:09 AM CST, 3 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1209 PM CDT SUN JUN 07 2015

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

1200 PM     HEAVY RAIN       PARK FOREST             41.48N 87.69W
06/07/2015  M1.45 INCH       COOK               IL   PUBLIC

&&

C

Local storm report, Jun 7, 11:12 AM CST, 3 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1212 PM CDT SUN JUN 07 2015

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

1200 PM     HEAVY RAIN       3 WSW CHICAGO HEIGHTS   41.49N 87.68W
06/07/2015  M1.54 INCH       COOK               IL   COCORAHS

&&

C

Local storm report, Jun 7, 11:36 AM CST, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1236 PM CDT SUN JUN 07 2015

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

1233 PM     HEAVY RAIN       4 NE CROWN POINT        41.47N 87.32W
06/07/2015  E0.00 INCH       LAKE               IN   TRAINED SPOTTER

            APPROX HALF FOOT TO A FOOT OF STANDING WATER NEAR 83RD
            AVE AND MISSISSIPPI ST.

&&

BMD

Local storm report, Jun 7, 2:30 PM CST, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
330 PM CDT SUN JUN 07 2015

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

0325 PM     HEAVY RAIN       PEOTONE                 41.33N 87.80W
06/07/2015  M1.45 INCH       WILL               IL   CO-OP OBSERVER

            1.45 INCHES IN ONE HOUR. TOTAL SO FAR 1.90 INCHES SINCE 7
            AM.

&&

BN

The radar

The Chicago radar (KLOT), 60 km away, was scanning. The volume nearest the first event began at 20:46 UTC.

Open the radar archive at this moment

Event by event

4 hail, 3 thunderstorm wind, 3 flood. Local standard time, as filed.

Hail, Grundy

When: June 7, 2:48 PM CST
Where: Grundy County, 6.24 mi WSW of Gardner
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.130, -88.420

Hail, Livingston

When: June 7, 2:50 PM CST
Where: Livingston County, 1.48 mi NNE of Dwight
Measured: 1 in hail
Reported by: Social Media
Coordinates: 41.100, -88.420

Hail, Kankakee

When: June 7, 3:15 PM CST
Where: Kankakee County, 0.86 mi NE of Grant Park
Measured: 0.88 in hail
Reported by: Public
Coordinates: 41.240, -87.640

Hail, Kankakee

When: June 7, 3:17 PM CST
Where: Kankakee County, 0.52 mi W of Bonfield
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.150, -88.060

Thunderstorm Wind, Kankakee

When: June 7, 3:31 PM CST
Where: Kankakee County, 1.11 mi NNE of Bradley to 1.47 mi NE of Bradley
Measured: 60 kt (69 mph) estimated gust
Property damage: $50,000
Reported by: Public
Coordinates: 41.144, -87.859

Numerous trees and large limbs were blown down across portions of Bradley. At least one large tree fell onto a house causing damage.

Flood, Will

When: June 7, 3:35 PM CST to 5:00 PM CST
Where: Will County, 1.41 mi NE of (C56) Bult Field Airport to 1.47 mi ENE of (C56) Bult Field Airport
Cause: Heavy Rain
Reported by: Amateur Radio
Coordinates: 41.395, -87.662

Six inches of standing water was reported on the roads in Pheasant Lakes Estates.

Thunderstorm Wind, Kankakee

When: June 7, 3:37 PM CST
Where: Kankakee County, 2.5 mi WNW of Kankakee Airport
Measured: 52 kt (60 mph) measured gust
Reported by: Trained Spotter
Coordinates: 41.120, -87.960

Flood, Will

When: June 7, 3:45 PM CST to 5:00 PM CST
Where: Will County, 0.14 mi W of Crete to 0.07 mi S of Crete
Cause: Heavy Rain
Reported by: Public
Coordinates: 41.450, -87.633

About two feet of standing water was reported on Highway 1 in Crete.

Flood, Kankakee

When: June 7, 4:44 PM CST to 6:00 PM CST
Where: Kankakee County, 0.95 mi NNE of Bradley to 0.97 mi NNE of Bradley
Cause: Heavy Rain
Reported by: Public
Coordinates: 41.142, -87.862

One to two feet of standing water was reported at the viaduct on West Broadway Street.

Thunderstorm Wind, Iroquois

When: June 7, 4:49 PM CST
Where: Iroquois County, 2.32 mi SSE of Woodland
Measured: 55 kt (63 mph) estimated gust
Reported by: Law Enforcement
Coordinates: 40.690, -87.700

A large tree was blown down.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Illinois in 2015 Every state in 2015 This day in weather history Warnings in Illinois, June 2015

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 582236, 582237, 582238, 582239, 582265, 582277, 582278, 582279, 582563, 582564.