Alert archive / Illinois / Special Weather Statements in 2014

Special Weather Statement, NWS Chicago, IL

August 1, 2014Kane County, Illinois

NWS Chicago, IL issued this special weather statement at Aug 1, 2014, 2:21 PM CDT for Kane County, Illinois. 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: Aug 1, 2014, 2:21 PM CDT (19:21 UTC)
Expired: Aug 1, 2014, 3:00 PM CDT
In force: 39 min
Issued by: NWS Chicago, IL

County Kane County, IL

The radar

The Chicago radar (KLOT), 56 km from the middle of the area, began a volume at 19:21 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, 7.4 hours before the alert went out and 219 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: 203 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1337 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 27 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 Aug 1, 1:43 PM CDT, 38 minutes earlier.

Area forecast discussion, Aug 1, 1:43 PM CDT, 38 minutes before

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    <section class="card" role="status" aria-live="polite">
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Aug 1, 10:27 AM CDT, 3 hours 54 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1027 AM CDT FRI AUG 1 2014

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
021530-
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-
1027 AM CDT FRI AUG 1 2014 /1127 AM EDT FRI AUG 1 2014/

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 OF WHICH MAY PRODUCE:

   WIND GUSTS UP TO 50 MPH.
   SMALL HAIL.
   BRIEF HEAVY DOWNPOURS.
   OCCASIONAL CLOUD TO GROUND LIGHTNING.

  AREAS AFFECTED AND TIMING:

  ALL OF NORTHERN ILLINOIS AND NORTHWEST INDIANA THIS AFTERNOON
  THROUGH EARLY THIS EVENING.

  DISCUSSION:

  SCATTERED THUNDERSTORM DEVELOPMENT IS EXPECTED TODAY AS SEVERAL
  WEAK MID LEVEL DISTURBANCES MOVE THROUGH THE REGION AND
  INSTABILITY INCREASES INTO THE AFTERNOON. COVERAGE AND INTENSITY
  OF THUNDERSTORMS ARE LIKELY TO INCREASE BY EARLY AFTERNOON.
  WIDESPREAD STRONG THUNDERSTORMS ARE NOT EXPECTED...BUT SOME
  ISOLATED STRONGER STORMS COULD PRODUCE GUSTY WINDS AND SMALL
  HAIL.

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

AFTERNOON SCATTERED THUNDERSTORMS ARE POSSIBLE SATURDAY AND
SUNDAY...WITH PERIODIC CHANCES FOR THUNDERSTORMS MONDAY THROUGH
THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

LMZ740>745-021530-
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-
1027 AM CDT FRI AUG 1 2014

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.

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE
THIS AFTERNOON...WITH COVERAGE INCREASING INTO THE AFTERNOON.

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

AFTERNOON SCATTERED THUNDERSTORMS ARE POSSIBLE SATURDAY AND
SUNDAY...WITH PERIODIC CHANCES FOR THUNDERSTORMS MONDAY THROUGH
THURSDAY.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-021530-
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-
1027 AM CDT FRI AUG 1 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON
THROUGH EARLY EVENING.

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

THERE ARE PERIODIC CHANCES FOR THUNDERSTORMS SUNDAY THROUGH
THURSDAY.

&&

BEACHLER

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

Special weather statement, Aug 1, 11:54 AM CDT, 2 hours 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1154 AM CDT FRI AUG 1 2014

ILZ014-011745-
COOK IL-
1154 AM CDT FRI AUG 1 2014

...SPECIAL WEATHER STATEMENT...

AT 1151 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR FOREST VIEW...MOVING EAST AT 10 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...OCCASIONAL
CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH
THIS STORM.

CITIES AND TOWNS AFFECTED...
  GRANT PARK...         SUMMIT...             LYONS...
  BEDFORD PARK...       RIVERSIDE...          BROOKFIELD...
  HODGKINS...           STICKNEY...           MIDWAY AIRPORT...

OTHER LOCATIONS AFFECTED...
SOLDIER FIELD...MUSEUM CAMPUS...MCCORMICK PLACE AND NORTHERLY
ISLAND...TOYOTA PARK...UNIVERSITY OF CHICAGO...MUSEUM OF
SCIENCE AND INDUSTRY...US CELLULAR FIELD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. HEAVY
RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND POOR
VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS
PASSED.

&&

LAT...LON 4176 8786 4183 8788 4187 8760 4184 8760
      4178 8756 4177 8756 4175 8753 4173 8752
TIME...MOT...LOC 1652Z 263DEG 9KT 4180 8778

BEACHLER

Local storm report, Aug 1, 12:14 PM CDT, 2 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1214 PM CDT FRI AUG 01 2014

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

1212 PM     HAIL             LA GRANGE               41.81N 87.87W
08/01/2014  E0.50 INCH       COOK               IL   PUBLIC

            QUARTER TO HALF INCH HAIL.

&&

C

Local storm report, Aug 1, 1:18 PM CDT, 1 hour 3 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
118 PM CDT FRI AUG 01 2014

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

1212 PM     HAIL             LA GRANGE               41.81N 87.87W
08/01/2014  E0.50 INCH       COOK               IL   PUBLIC

            QUARTER OF AN INCH TO HALF INCH HAIL.

&&

C

Local storm report, Aug 1, 1:19 PM CDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
119 PM CDT FRI AUG 01 2014

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

0101 PM     HAIL             5 W MOKENA              41.53N 87.97W
08/01/2014  E0.50 INCH       WILL               IL   COCORAHS

            QUARTER OF AN INCH TO HALF INCH HAIL.

&&

C

Special weather statement, Aug 1, 2:21 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
221 PM CDT FRI AUG 1 2014

ILZ012-014-012000-
COOK IL-KANE IL-
221 PM CDT FRI AUG 1 2014

...SPECIAL WEATHER STATEMENT...

AT 217 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WEST DUNDEE...MOVING EAST AT 10 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...OCCASIONAL
CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH
THIS STORM.

CITIES AND TOWNS AFFECTED...
  WEST DUNDEE...        SLEEPY HOLLOW...      ELGIN...
  CARPENTERSVILLE...    EAST DUNDEE...        STREAMWOOD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. HEAVY
RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND POOR
VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS
PASSED.

&&

LAT...LON 4215 8815 4200 8816 4204 8835 4214 8835
TIME...MOT...LOC 1922Z 270DEG 8KT 4209 8827

BEACHLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 6:01 AM CDT	Areal Flood Advisory	LOT	Will	3 hr
Aug 1, 6:17 AM CDT	Areal Flood Advisory	LOT	LaSalle	3 hr
Aug 1, 11:54 AM CDT	Special Weather Statement	LOT	Cook	51 min
Aug 1, 2:02 PM CDT	Areal Flood Advisory	LOT	Cook	4 hr
Aug 1, 2:24 PM CDT	Special Weather Statement	LOT	Cook	51 min
Aug 1, 4:15 PM CDT	Special Weather Statement	LOT	DuPage	15 min
Aug 1, 4:35 PM CDT	Special Weather Statement	LOT	Livingston	25 min
Aug 1, 4:43 PM CDT	Special Weather Statement	LOT	DuPage	32 min
Aug 1, 4:59 PM CDT	Areal Flood Advisory	LOT	DuPage	3 hr
Aug 1, 5:22 PM CDT	Special Weather Statement	LOT	Will	23 min
Aug 1, 5:44 PM CDT	Special Weather Statement	LOT	DeKalb	31 min
Aug 1, 5:56 PM CDT	Areal Flood Advisory	LOT	Kankakee, Will	4 hr
Aug 1, 6:18 PM CDT	Special Weather Statement	LOT	DeKalb	27 min
Aug 1, 6:41 PM CDT	Areal Flood Advisory	LOT	DeKalb	4 hr
Aug 1, 6:47 PM CDT	Special Weather Statement	LOT	DeKalb	28 min
Aug 1, 6:50 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb	25 min
Aug 1, 1:52 PM CDT	Areal Flood Advisory	LOT	Jasper, Porter	6 hr
Aug 1, 2:43 PM CDT	Areal Flood Advisory	LOT	Lake, Porter	4 hr

Nearby

Special Weather Statements in Illinois, 2014 Every special weather statement 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.