Alert archive / Illinois / Wind Advisories in 2012

Wind Advisory 7, NWS Chicago, IL

April 16, 201216 counties in Illinois; 5 counties in Indiana

NWS Chicago, IL issued this wind advisory at Apr 16, 2012, 8:28 AM CDT for 16 counties in Illinois; 5 counties in Indiana. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Apr 16, 2012, 8:28 AM CDT (13:28 UTC)
Expired
Apr 16, 2012, 6:00 PM CDT
In force
10 hr
Issued by
NWS Chicago, IL
All 21 counties

Boone County, IL, DeKalb County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, McHenry County, IL, Ogle County, IL, Winnebago County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 15 km from the middle of the area, began a volume at 13:27 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, 1.5 hours before the alert went out and 156 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 12:00Z on 2012-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2012-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1214 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
74 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.

990 
WWUS73 KLOT 161328
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
828 AM CDT MON APR 16 2012

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
162130-
/O.NEW.KLOT.WI.Y.0007.120416T1328Z-120416T2300Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
828 AM CDT MON APR 16 2012 /928 AM EDT MON APR 16 2012/

...WIND ADVISORY IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING. 

* TIMING...STRONG WINDS WILL CONTINUE THROUGH THE AFTERNOON.

* WINDS...SUSTAINED 25 TO 35 MPH WITH GUSTS OVER 45 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

$$

IZZI
3 follow-up statements
409 
WWUS73 KLOT 161718
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1218 PM CDT MON APR 16 2012

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
162300-
/O.CON.KLOT.WI.Y.0007.000000T0000Z-120416T2300Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
1218 PM CDT MON APR 16 2012 /118 PM EDT MON APR 16 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING...

* TIMING...STRONG WINDS WILL CONTINUE THROUGH THE AFTERNOON.

* WINDS...SUSTAINED 25 TO 35 MPH WITH OCCASIONAL GUSTS OVER 45
  MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

$$

IZZI
478 
WWUS73 KLOT 162002
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
302 PM CDT MON APR 16 2012

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
162300-
/O.CON.KLOT.WI.Y.0007.000000T0000Z-120416T2300Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
302 PM CDT MON APR 16 2012 /402 PM EDT MON APR 16 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING...

* TIMING...STRONG WINDS WILL BEGIN TO DIMINISH LATE THIS EVENING.

* WINDS...SUSTAINED 25 TO 35 MPH WITH OCCASIONAL GUSTS OVER 45 
  MPH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

$$

IZZI
348 
WWUS73 KLOT 162249
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
549 PM CDT MON APR 16 2012

.WHILE STILL A BIT WINDY...SPEEDS HAVE STEADILY DIMINISHED DURING
THE LATE AFTERNOON. THEY ARE EXPECTED TO QUICKLY DROP OFF WITH
THE SUN SETTING.

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
170000-
/O.EXP.KLOT.WI.Y.0007.000000T0000Z-120416T2300Z/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
549 PM CDT MON APR 16 2012 /649 PM EDT MON APR 16 2012/

...WIND ADVISORY WILL EXPIRE AT 6 PM CDT /7 PM EDT/ THIS
EVENING...

WEST WINDS HAD DIMINISHED TO 15 TO 25 MPH WITH GUSTS OF 30 TO 
40 MPH DURING THE LATER AFTERNOON. WINDS WILL QUICKLY DROP OFF
WITH SUNSET WITH WINDS BY MID EVENING FROM THE NORTHWEST AT ONLY
AROUND 10 MPH. THUS...THE WIND ADVISORY WILL BE ALLOWED TO
EXPIRE.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 9:28 PM CDTGale WarningLOT28 hr
Apr 15, 9:28 PM CDTSmall Craft AdvisoryLOT6 hr
Apr 15, 11:28 PM CDTSpecial Marine WarningLOT4 hr
Apr 16, 6:53 PM CDTSmall Craft AdvisoryLOT3 hr

Nearby

Wind Advisories in Illinois, 2012Wind Advisories in Indiana, 2012Every wind advisory in 2012

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.