Alert archive / Indiana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 62, NWS Chicago, IL

June 18, 20144 counties in Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Jun 18, 2014, 9:52 PM EDT for 4 counties in Indiana. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 18, 2014, 9:52 PM EDT (01:52 UTC)
Expired: Jun 18, 2014, 10:45 PM EDT
In force: 53 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN

The radar

The Chicago radar (KLOT), 93 km from the middle of the area, began a volume at 01:56 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 00:00Z, 1.9 hours before the alert went out and 146 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: 3005 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1323 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 18, 7:57 PM EDT, 1 hour 55 minutes earlier.

Area forecast discussion, Jun 18, 7:57 PM EDT, 1 hour 55 minutes before

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Hazardous weather outlook, Jun 18, 4:32 PM EDT, 5 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
332 PM CDT WED JUN 18 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
192045-
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-
332 PM CDT WED JUN 18 2014 /432 PM EDT WED JUN 18 2014/

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

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

  THUNDERSTORMS WHICH MAY PRODUCE:
   WIND GUSTS TO 45 MPH.
   TORRENTIAL DOWNPOURS.
   SMALL HAIL.

  AREAS AFFECTED AND TIMING:

  SHOWERS AND PERHAPS ANOTHER THUNDERSTORM MAY FORM ESPECIALLY
  ALONG THE WISCONSIN ILLINOIS STATE LINE THIS EVENING INTO
  TONIGHT.

  DISCUSSION:

  CONFIDENCE IS LOW IN THUNDERSTORM DEVELOPMENT THROUGH TONIGHT.
  THE ATMOSPHERE REMAINS VERY STABLE AFTER THE LINE OF STORMS
  THAT MARCHED THROUGH TODAY.  SEEING A FEW SHOWERS FORM OVER
  SOUTHERN WISCONSIN AND ALONG A BOUNDARY OVER CENTRAL ILLINOIS.
  STORMS MAY MOVE INTO THE WARNING AREA TONIGHT BUT ONCE AGAIN
  HAVE VERY LOW CONFIDENCE GIVEN THE STABLE ENVIRONMENT. ANY
  STORMS THAT DUE FORM WILL BE CAPABLE OF TORRENTIAL DOWNPOURS AND
  GUSTY WINDS. THE STRONGER STORMS MAY PRODUCE GUSTS TO 45 MPH AND
  SMALL HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS WILL CONTINUE TO BE POSSIBLE AT TIMES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

LMZ740>745-192045-
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-
332 PM CDT WED JUN 18 2014

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

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS PERIODICALLY AFFECTING THE
NEARSHORE WATERS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-192045-
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-
332 PM CDT WED JUN 18 2014

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

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS PERIODICALLY AFFECTING THE
SOUTHERN END OF THE LAKE.

AREAS OF DENSE FOG ARE ALSO POSSIBLE...ESPECIALLY ACROSS SOUTHERN
LAKE MICHIGAN.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS.

&&

JEE

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 18, 8:48 PM EDT, 1 hour 4 minutes before

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Local storm report, Jun 18, 8:51 PM EDT, 1 hour 1 minute before

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Local storm report, Jun 18, 8:54 PM EDT, 58 minutes before

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Local storm report, Jun 18, 9:06 PM EDT, 46 minutes before

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Local storm report, Jun 18, 9:25 PM EDT, 27 minutes before

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Local storm report, Jun 18, 9:27 PM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
827 PM CDT WED JUN 18 2014

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

0552 PM     HAIL             2 SW STILLMAN VALLEY    42.08N 89.21W
06/18/2014  E1.00 INCH       OGLE               IL   PUBLIC

0602 PM     HAIL             4 S BYRON               42.07N 89.26W
06/18/2014  E0.88 INCH       OGLE               IL   PUBLIC

0640 PM     HEAVY RAIN       ELBURN                  41.89N 88.47W
06/18/2014  M1.81 INCH       KANE               IL   CO-OP OBSERVER

            RAIN SINCE 6 AM

0642 PM     TSTM WND DMG     DE KALB                 41.93N 88.75W
06/18/2014                   DEKALB             IL   TRAINED SPOTTER

            POWER LINES DOWN AT RT 23 AND BETHANY RD.

0659 PM     TSTM WND GST     SUGAR GROVE             41.77N 88.46W
06/18/2014  M47.00 MPH       KANE               IL   ASOS

0712 PM     TSTM WND GST     SUGAR GROVE             41.77N 88.46W
06/18/2014  M55.00 MPH       KANE               IL   ASOS

0719 PM     TSTM WND GST     MONTGOMERY              41.73N 88.34W
06/18/2014  E60.00 MPH       KANE               IL   PUBLIC

0720 PM     HAIL             E AURORA                41.77N 88.29W
06/18/2014  M1.00 INCH       KANE               IL   TRAINED SPOTTER

0724 PM     TSTM WND GST     BOULDER HILL            41.71N 88.34W
06/18/2014  M48.00 MPH       KENDALL            IL   TRAINED SPOTTER

0725 PM     TSTM WND GST     6 SSW AURORA            41.69N 88.33W
06/18/2014  M77.00 MPH       KENDALL            IL   MESONET

0730 PM     LIGHTNING        ST. CHARLES             41.92N 88.30W
06/18/2014                   KANE               IL   LAW ENFORCEMENT

            SUSPECTED LIGHTNING CAUSED FIRE TO A RESIDENCE RELAYED BY
            KANE COUNTY DISPATCH. THIS WAS IN UNINCORPORATED ST
            CHARLES. TIME ESTIMATED PER LIGHTNING DATA.

0730 PM     HEAVY RAIN       NORTH AURORA            41.80N 88.33W
06/18/2014  M0.95 INCH       KANE               IL   COCORAHS

            RAIN FELL BETWEEN 530 PM AND 730 PM

0747 PM     HEAVY RAIN       ST. CHARLES             41.92N 88.30W
06/18/2014  M1.67 INCH       KANE               IL   TRAINED SPOTTER

            RAIN SINCE 6 PM. TOTAL RAIN SINCE THIS MORNING IS 2.13
            INCHES.

0751 PM     TSTM WND GST     CREST HILL              41.57N 88.11W
06/18/2014  E50.00 MPH       WILL               IL   PUBLIC

            RT 53 AND ELISE

&&

MTF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 8:27 PM EDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Grundy, Kendall, Will	63 min
Jun 18, 11:24 PM EDT	Special Weather Statement	LOT	Lee	21 min
Jun 18, 11:47 PM EDT	Flash Flood Warning	LOT	LaSalle, Lee	6 hr
Jun 19, 1:20 AM EDT	Severe Thunderstorm Warning	LOT	Lee	55 min
Jun 19, 1:52 AM EDT	Flash Flood Warning	LOT	Lee, Ogle	8 hr
Jun 19, 2:42 AM EDT	River Flood Advisory	LOT	Will	36 hr
Jun 19, 2:42 AM EDT	River Flood Advisory	LOT	Kane, Kendall	29 hr
Jun 19, 5:24 AM EDT	Areal Flood Warning	LOT	LaSalle, Lee	6 hr
Jun 19, 9:05 AM EDT	Marine Dense Fog Advisory	LOT		7 hr
Jun 19, 9:48 AM EDT	Areal Flood Warning	LOT	Lee	8 hr
Jun 19, 11:21 AM EDT	Flash Flood Watch	LOT	Lee, Ogle, Winnebago	17 hr
Jun 19, 3:15 PM EDT	Special Weather Statement	LOT	Kankakee	45 min
Jun 19, 4:08 PM EDT	Special Weather Statement	LOT	Kankakee	37 min
Jun 19, 5:53 PM EDT	Areal Flood Advisory	LOT	Iroquois, Kankakee, Will	6 hr
Jun 19, 3:34 PM EDT	Special Weather Statement	LOT	Jasper	41 min
Jun 19, 5:38 PM EDT	Special Weather Statement	LOT	Newton	37 min
Jun 19, 6:15 PM EDT	Special Weather Statement	LOT	Porter	45 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2014 Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.