Alert archive / Illinois / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 25, NWS Chicago, IL

June 14, 2016Ogle County, Illinois

NWS Chicago, IL issued this severe thunderstorm warning at Jun 14, 2016, 5:49 PM CDT for Ogle County, Illinois. It was in force for 26 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 14, 2016, 5:49 PM CDT (22:49 UTC)
Expired: Jun 14, 2016, 6:15 PM CDT
In force: 26 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Ogle County, IL

The radar

The Chicago radar (KLOT), 113 km from the middle of the area, began a volume at 22:50 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

Davenport, (KDVN), launched 12:00Z, 10.8 hours before the alert went out and 108 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: 569 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 989 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 14, 4:47 PM CDT, 1 hour 2 minutes earlier.

Area forecast discussion, Jun 14, 4:47 PM CDT, 1 hour 2 minutes before

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Hazardous weather outlook, Jun 14, 4:00 PM CDT, 1 hour 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 PM CDT TUE JUN 14 2016

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
152100-
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-
400 PM CDT TUE JUN 14 2016 /500 PM EDT TUE JUN 14 2016/

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

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:
  SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
      LIMITED HAIL RISK...UP TO QUARTER SIZE.
      LIMITED THUNDERSTORM WIND DAMAGE RISK...UP TO 60 MPH.
  ELEVATED FLOODING RISK.
  LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

WIDESPREAD SEVERE WEATHER IS NOT EXPECTED THIS AFTERNOON AND
EVENING...BUT A FEW STORMS COULD PRODUCE BURSTS OF STRONG WINDS
AND PERHAPS SOME HAIL TO THE SIZE OF QUARTERS. SLOW MOVING STORMS
ALSO MAY PRODUCE LOCAL FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

WEDNESDAY...
  ELEVATED SEVERE THUNDERSTORM RISK.
  LIMITED EXCESSIVE HEAT RISK.
THURSDAY...
 ELEVATED SWIM RISK.
SUNDAY... LIMITED THUNDERSTORM RISK.

DISCUSSION:

A FEW OF THE STORMS ALONG A WARM FRONT LIFTING ACROSS THE AREA
TOMORROW COULD PRODUCE DAMAGING WINDS AND LARGE HAIL IN FAR
NORTHEAST ILLINOIS AND NORTHWEST INDIANA...THOUGH WIDESPREAD
SEVERE WEATHER IS NOT ANTICIPATED FOR THOSE AREAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS AFTERNOON AND EVENING.

GENERAL STORM MOTION OF THE DAY:

MOVING NORTHEAST AT 15 MPH.

&&

LMZ740>745-152100-
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-
400 PM CDT TUE JUN 14 2016

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

.DAY ONE...TONIGHT.

PERIODIC THUNDERSTORMS ARE EXPECTED THIS EVENING AND TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE WILL BE PERIODIC THUNDERSTORM CHANCES WEDNESDAY...WITH
SOME THUNDERSTORMS BECOMING SEVERE. ADDITIONAL THUNDERSTORMS
WILL BE POSSIBLE AGAIN SUNDAY NIGHT INTO MONDAY.

ALSO...STRONG WINDS AND HIGH WAVES MAY LEAD TO HAZARDOUS
CONDITIONS FOR SMALL CRAFT THURSDAY INTO THURSDAY NIGHT.

&&

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-152100-
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-
400 PM CDT TUE JUN 14 2016

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

.DAY ONE...TONIGHT.

THERE WILL BE PERIODIC THUNDERSTORM CHANCES THIS EVENING AND
TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE WILL BE PERIODIC THUNDERSTORM CHANCES WEDNESDAY...WITH
SOME THUNDERSTORMS BECOMING SEVERE MAINLY ACROSS THE SOUTHERN
HALF OF LAKE MICHIGAN. ADDITIONAL THUNDERSTORMS WILL BE
POSSIBLE AGAIN SUNDAY NIGHT INTO MONDAY.

&&

LENNING

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

In the hours before

Special weather statement, Jun 14, 2:28 PM CDT, 3 hours 21 minutes before

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Special weather statement, Jun 14, 2:33 PM CDT, 3 hours 16 minutes before

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Special weather statement, Jun 14, 2:55 PM CDT, 2 hours 54 minutes before

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Local storm report, Jun 14, 5:45 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
545 PM CDT TUE JUN 14 2016

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

0544 PM     HEAVY RAIN       DOWNERS GROVE           41.80N 88.02W
06/14/2016  M2.01 INCH       DUPAGE             IL   PUBLIC

            FOR THE DAY. 1.84 INCHES FROM 4 PM TO 530 PM

&&

C

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 10:52 PM CDT	Areal Flood Advisory	LOT	DeKalb, LaSalle, Lee	3 hr
Jun 14, 12:35 AM CDT	Areal Flood Advisory	LOT	Grundy, Kankakee, Will	4 hr
Jun 14, 3:05 AM CDT	Areal Flood Advisory	LOT	Grundy, LaSalle, Livingston	4 hr
Jun 14, 5:55 AM CDT	Areal Flood Advisory	LOT	DeKalb, Lee, Ogle	4 hr
Jun 14, 2:28 PM CDT	Special Weather Statement	LOT	Ford	47 min
Jun 14, 2:33 PM CDT	Special Weather Statement	LOT	Ford	42 min
Jun 14, 2:55 PM CDT	Special Weather Statement	LOT	Grundy	20 min
Jun 14, 3:49 PM CDT	Severe Thunderstorm Warning	LOT	Lee	26 min
Jun 14, 4:59 PM CDT	Areal Flood Advisory	LOT	DuPage	2 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2016 Every severe thunderstorm warning in 2016

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.