Alert archive / Indiana / High Wind Warnings in 2012

High Wind Warning 4, NWS Chicago, IL

December 21, 2012Porter County, Indiana

NWS Chicago, IL issued this high wind warning at Dec 21, 2012, 2:52 AM CST for Porter County, Indiana. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 21, 2012, 2:52 AM CST (08:52 UTC)
Expired
Dec 21, 2012, 11:56 AM CST
In force
9 hr
Issued by
NWS Chicago, IL

County Porter County, IN

The radar

The Chicago radar (KLOT), 85 km from the middle of the area, began a volume at 08:51 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, 8.9 hours before the alert went out and 198 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 2012-12-21Temperature 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 2012-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 445 square meters per square second.19395878Sfc1 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
536 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
445 m²/s²
0-3 km storm-relative helicity
488 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.

830 
WWUS73 KLOT 210852
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
252 AM CST FRI DEC 21 2012

INZ002-211700-
/O.NEW.KLOT.HW.W.0004.121221T0852Z-121221T1800Z/
PORTER-
INCLUDING THE CITY OF...VALPARAISO
252 AM CST FRI DEC 21 2012

...HIGH WIND WARNING IN EFFECT UNTIL NOON CST TODAY NEAR THE LAKE...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A HIGH WIND
WARNING FOR THE PORTER COUNTY LAKESHORE...WHICH IS IN EFFECT
UNTIL NOON CST TODAY.

* TIMING...VERY STRONG WINDS AND POTENTIALLY DAMAGING WINDS ARE
  LIKELY THIS MORNING.

* WINDS...GUSTS UP TO 60 MPH ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

&&

$$

ILZ019-023-032-033-039-INZ010-011-019-211200-
/O.CON.KLOT.WI.Y.0014.000000T0000Z-121221T1200Z/
LA SALLE-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...OTTAWA...KANKAKEE...PONTIAC...WATSEKA...
PAXTON...MOROCCO...RENSSELAER...FOWLER
252 AM CST FRI DEC 21 2012 /352 AM EST FRI DEC 21 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST /7 AM EST/
EARLY THIS MORNING...

* TIMING...THROUGH SUNRISE.

* WINDS...WEST TO NORTHWEST 25 TO 35 MPH GUSTING TO AROUND 45 
  MPH.

* IMPACTS...BE CERTAIN THAT ANY LOOSE ITEMS SUSCEPTIBLE TO HIGH 
  WINDS ARE SECURED. WINDS MAY ADVERSELY IMPACT HIGH PROFILE 
  VEHICLES. 

* OTHER IMPACTS...LIGHT SNOW ACCUMULATION MAY RESULT IN SOME 
  BLOWING SNOW WHICH MAY STICK TO ROADWAYS. USE EXTRA CAUTION 
  AND BE ALERT FOR SLIPPERY AREAS. 

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
2 follow-up statements
922 
WWUS73 KLOT 211152
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
552 AM CST FRI DEC 21 2012

ILZ019-023-032-033-039-INZ010-011-019-211300-
/O.EXP.KLOT.WI.Y.0014.000000T0000Z-121221T1200Z/
LA SALLE-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...OTTAWA...KANKAKEE...PONTIAC...WATSEKA...
PAXTON...MOROCCO...RENSSELAER...FOWLER
552 AM CST FRI DEC 21 2012 /652 AM EST FRI DEC 21 2012/

...WIND ADVISORY WILL EXPIRE AT 6 AM CST /7 AM EST/ EARLY THIS
MORNING...

WEST NORTHWEST WINDS WILL REMAIN GUSTY UP TO 40 MPH THIS MORNING.
HOWEVER...WIND SPEEDS WILL GRADUALLY DIMINISH THROUGH THE DAY. 

$$

INZ002-211800-
/O.CON.KLOT.HW.W.0004.000000T0000Z-121221T1800Z/
PORTER-
INCLUDING THE CITY OF...VALPARAISO
552 AM CST FRI DEC 21 2012

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* TIMING...VERY STRONG WINDS AND POTENTIALLY DAMAGING WINDS ARE 
  LIKELY THIS MORNING. 

* WINDS...GUSTS UP TO 60 MPH ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

&&

$$

KJB
765 
WWUS73 KLOT 211756
NPWLOT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1156 AM CST FRI DEC 21 2012

INZ002-211900-
/O.CAN.KLOT.HW.W.0004.000000T0000Z-121221T1800Z/
PORTER-
INCLUDING THE CITY OF...VALPARAISO
1156 AM CST FRI DEC 21 2012

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE HIGH
WIND WARNING. 

WINDS HAVE STEADILY DIMINISHED THIS MORNING AND WILL ALLOW THE
HIGH WIND WARNING TO EXPIRE. GUSTY WINDS UP TO 40 MPH ARE STILL
EXPECTED THROUGH THIS EVENING...ESPECIALLY ALONG THE LAKE MICHIGAN
LAKE SHORE.

$$

JEE

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 21, 12:00 AM CSTWind AdvisoryLOTBenton, Jasper, Newton6 hr

Nearby

High Wind Warnings in Indiana, 2012Every high wind warning 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.