Alert archive / Illinois / Wind Advisories in 2012

Wind Advisory 2, NWS Chicago, IL

February 29, 201212 counties in Illinois; 5 counties in Indiana

NWS Chicago, IL issued this wind advisory at Feb 29, 2012, 3:59 AM CST for 12 counties in Illinois; 5 counties in Indiana. It took effect at Feb 29, 2012, 9:00 AM CST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Feb 29, 2012, 3:59 AM CST (09:59 UTC)
In effect from
Feb 29, 2012, 9:00 AM CST
Expired
Feb 29, 2012, 6:00 PM CST
In force
9 hr
Issued by
NWS Chicago, IL

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

The radar

The Chicago radar (KLOT), 31 km from the middle of the area, began a volume at 10:02 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, 10.0 hours before the alert went out and 137 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 00:00Z on 2012-02-29Temperature 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 00:00Z on 2012-02-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 square meters per square second.1939587897Sfc1 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
1465 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
390 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.

675 
WWUS73 KLOT 290959
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
359 AM CST WED FEB 29 2012

...VERY WINDY CONDITIONS THIS MORNING THROUGH THIS EVENING...

.STRONG WINDS WILL DEVELOP THIS MORNING AHEAD OF A DEEP LOW
PRESSURE SYSTEM TRANSITING THROUGH THE REGION. WINDS WILL VEER TO
THE SOUTHWEST BEHIND A WARM FRONT AND BECOME GUSTY THROUGH THE
EARLY EVENING HOURS. THE STRONGEST WINDS WILL GENERALLY BE SOUTH
OF THE INTERSTATE 80 CORRIDOR. WINDS WILL DIMINISH THIS EVENING AS
THE LOW PRESSURE FILLS AND CONTINUES TO MOVE EAST AWAY FROM THE
REGION.

ILZ019>023-032-033-039-INZ001-002-010-011-019-291800-
/O.NEW.KLOT.WI.Y.0002.120229T1500Z-120301T0000Z/
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...OTTAWA...OSWEGO...MORRIS...JOLIET...
KANKAKEE...PONTIAC...WATSEKA...PAXTON...GARY...VALPARAISO...
MOROCCO...RENSSELAER...FOWLER
359 AM CST WED FEB 29 2012 /459 AM EST WED FEB 29 2012/

...WIND ADVISORY IN EFFECT FROM 9 AM CST /10 AM EST/ THIS MORNING
TO 6 PM CST /7 PM EST/ THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 AM CST /10 AM EST/ THIS
MORNING TO 6 PM CST /7 PM EST/ THIS EVENING. 

* TIMING...WINDS WILL INCREASE THROUGH THE MORNING...REACHING
  ADVISORY CRITERIA BY LATE THIS MORNING AND LASTING THROUGH THE
  EARLY EVENING HOURS.

* WINDS...SUSTAINED WINDS OF 30 TO 35 MPH WITH GUSTS OF 45 TO 50
  MPH ARE EXPECTED GENERALLY SOUTH OF THE INTERSTATE 80 CORRIDOR.
  THE STRONGEST WINDS WILL BE ACROSS PORTIONS OF EAST CENTRAL
  ILLINOIS WHERE A BRIEF PERIOD OF WIND GUSTS TO 55 MPH IS
  POSSIBLE.

* IMPACTS...STRONG WINDS MAY CAUSE SMALL LIMBS AND TWIGS TO BREAK
  FROM TREES. WEAK OR OLD STRUCTURES MAY SUSTAIN MINOR DAMAGE AND
  A FEW LOOSE SHINGLES MAY BE REMOVED FROM HOUSES. LOOSE OBJECTS
  WILL BE BLOWN AROUND. THESE STRONG WINDS WILL ALSO MAKE DRIVING
  HAZARDOUS...PARTICULARLY FOR HIGH PROFILE VEHICLES.

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.

&&

$$

BMD
3 follow-up statements
723 
WWUS73 KLOT 291501
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
901 AM CST WED FEB 29 2012

...VERY WINDY CONDITIONS THIS MORNING THROUGH THIS EVENING...

.STRONG AND GUSTY SOUTHWEST WINDS ARE DEVELOPING THIS MORNING
AHEAD OF A DEEP LOW PRESSURE SYSTEM TRANSITIONING THROUGH THE
UPPER MIDWEST. WINDS WILL DIMINISH THIS EVENING AS THE LOW
PRESSURE FILLS AND CONTINUES TO MOVE EAST AWAY FROM THE REGION.

ILZ008-010>014-292300-
/O.EXA.KLOT.WI.Y.0002.120229T1500Z-120301T0000Z/
OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
INCLUDING THE CITIES OF...OREGON...DIXON...DEKALB...AURORA...
WHEATON...CHICAGO
901 AM CST WED FEB 29 2012

...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...

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

* TIMING...WINDS WILL INCREASE THROUGH THE MORNING...REACHING 
  ADVISORY CRITERIA BY LATE THIS MORNING AND LASTING THROUGH THE 
  EARLY EVENING HOURS. 

* WINDS...SUSTAINED WINDS OF 25 TO 35 MPH WITH GUSTS UP TO 45 MPH
  ARE EXPECTED.

* IMPACTS...STRONG WINDS MAY CAUSE SMALL LIMBS AND TWIGS TO 
  BREAK FROM TREES. WEAK OR OLD STRUCTURES MAY SUSTAIN MINOR 
  DAMAGE AND A FEW LOOSE SHINGLES MAY BE REMOVED FROM HOUSES. 
  LOOSE OBJECTS WILL BE BLOWN AROUND. THESE STRONG WINDS WILL 
  ALSO MAKE DRIVING HAZARDOUS...PARTICULARLY FOR HIGH PROFILE 
  VEHICLES. 

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.

&&

$$

ILZ019>023-032-033-039-INZ001-002-010-011-019-292300-
/O.CON.KLOT.WI.Y.0002.000000T0000Z-120301T0000Z/
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...OTTAWA...OSWEGO...MORRIS...JOLIET...
KANKAKEE...PONTIAC...WATSEKA...PAXTON...GARY...VALPARAISO...
MOROCCO...RENSSELAER...FOWLER
901 AM CST WED FEB 29 2012 /1001 AM EST WED FEB 29 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /7 PM EST/ THIS
EVENING...

* TIMING...WINDS WILL INCREASE THROUGH THE MORNING...REACHING 
  ADVISORY CRITERIA BY LATE THIS MORNING AND LASTING THROUGH THE 
  EARLY EVENING HOURS. 

* WINDS...SUSTAINED WINDS OF 30 TO 35 MPH WITH GUSTS UP TO 50
  MPH ARE EXPECTED. THE STRONGEST WINDS WILL BE ACROSS PORTIONS
  OF EAST CENTRAL ILLINOIS WHERE A BRIEF PERIOD OF WIND GUSTS TO
  55 MPH IS POSSIBLE.

* IMPACTS...STRONG WINDS MAY CAUSE SMALL LIMBS AND TWIGS TO 
  BREAK FROM TREES. WEAK OR OLD STRUCTURES MAY SUSTAIN MINOR 
  DAMAGE AND A FEW LOOSE SHINGLES MAY BE REMOVED FROM HOUSES. 
  LOOSE OBJECTS WILL BE BLOWN AROUND. THESE STRONG WINDS WILL 
  ALSO MAKE DRIVING HAZARDOUS...PARTICULARLY FOR HIGH PROFILE 
  VEHICLES. 

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.

&&

$$

RC
311 
WWUS73 KLOT 292200
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
400 PM CST WED FEB 29 2012

...VERY WINDY CONDITIONS THROUGH THIS EVENING...

.WINDS WILL SLOWLY DIMINISH DURING THE EVENING AS THE LOW
PRESSURE TO OUR NORTHWEST FILLS AND CONTINUES TO MOVE EAST AWAY
FROM THE REGION.

ILZ008-010>014-019>023-032-033-039-INZ001-002-010-011-019-010000-
/O.CON.KLOT.WI.Y.0002.000000T0000Z-120301T0000Z/
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...OREGON...DIXON...DEKALB...AURORA...
WHEATON...CHICAGO...OTTAWA...OSWEGO...MORRIS...JOLIET...
KANKAKEE...PONTIAC...WATSEKA...PAXTON...GARY...VALPARAISO...
MOROCCO...RENSSELAER...FOWLER
400 PM CST WED FEB 29 2012 /500 PM EST WED FEB 29 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /7 PM EST/ THIS
EVENING...

* TIMING...STRONG WINDS WILL PERSIST THROUGH THE EARLY EVENING
  HOURS.

* WINDS...SUSTAINED WINDS OF 25 TO 35 MPH WITH GUSTS UP TO 45 MPH
  ARE EXPECTED. OCCASIONAL GUSTS TO 50 MPH ARE POSSIBLE.

* IMPACTS...STRONG WINDS MAY CAUSE SMALL LIMBS TO BREAK FROM
  TREES. WEAK OR OLD STRUCTURES MAY SUSTAIN MINOR DAMAGE AND A FEW
  LOOSE SHINGLES MAY BE REMOVED FROM HOUSES. LOOSE OBJECTS WILL BE
  BLOWN AROUND. THESE STRONG WINDS WILL ALSO MAKE DRIVING
  HAZARDOUS...PARTICULARLY FOR HIGH PROFILE VEHICLES.

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.

&&

$$

JEE
319 
WWUS73 KLOT 010005
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
605 PM CST WED FEB 29 2012

ILZ008-010>014-019>023-032-033-039-INZ001-002-010-011-019-010115-
/O.EXP.KLOT.WI.Y.0002.000000T0000Z-120301T0000Z/
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...OREGON...DIXON...DEKALB...AURORA...
WHEATON...CHICAGO...OTTAWA...OSWEGO...MORRIS...JOLIET...
KANKAKEE...PONTIAC...WATSEKA...PAXTON...GARY...VALPARAISO...
MOROCCO...RENSSELAER...FOWLER
605 PM CST WED FEB 29 2012 /705 PM EST WED FEB 29 2012/

...WIND ADVISORY HAS EXPIRED...

WESTERLY WINDS WILL GUST TO 40 MPH THIS EVENING BUT WILL CONTINUE
TO GRADUALLY DIMINISH.

$$

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.