Alert archive / Illinois / Wind Advisories in 2008

Wind Advisory 5, NWS St. Louis, MO

April 11, 200814 counties in Illinois; 6 counties in Missouri

NWS St. Louis, MO issued this wind advisory at Apr 11, 2008, 2:22 PM CDT for 14 counties in Illinois; 6 counties in Missouri. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Apr 11, 2008, 2:22 PM CDT (19:22 UTC)
Expired
Apr 11, 2008, 7:00 PM CDT
In force
5 hr
Issued by
NWS St. Louis, MO

Counties Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Saint Clair County, IL, City of Saint Louis, MO, Jefferson County, MO, Lincoln County, MO, Pike County, MO, Saint Charles County, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 50 km from the middle of the area, began a volume at 19:23 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 191 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 2008-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 54 joules per kilogram.LCLLFCEL10008507005003002001001 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 2008-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 234 square meters per square second.1939587897117136156Sfc1 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
54 J/kg
Mixed-layer CIN
-174 J/kg
Mixed-layer LCL
1175 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
234 m²/s²
0-3 km storm-relative helicity
336 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.

000 
WWUS73 KLSX 111922
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
222 PM CDT FRI APR 11 2008

ILZ058>060-064-065-069-095>102-MOZ036-052-061-063>065-120000-
/O.EXP.KLSX.WI.Y.0004.000000T0000Z-080411T1900Z/
/O.NEW.KLSX.WI.Y.0005.080411T1922Z-080412T0000Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
ADAMS IL-BROWN IL-PIKE IL-CALHOUN IL-JERSEY IL-MADISON IL-
ST. CLAIR IL-MONROE IL-PIKE-LINCOLN-ST. CHARLES-ST. LOUIS-
ST. LOUIS CITY-JEFFERSON-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...QUINCY...
EDWARDSVILLE...BELLEVILLE...BOWLING GREEN...ST CHARLES...ST LOUIS
222 PM CDT FRI APR 11 2008

...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...WIND ADVISORY HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS BEEN EXTENDED TIL
7:00 PM CDT THIS FRIDAY EVENING.

A WIND ADVISORY IS IN EFFECT TIL EARLY THIS EVENING. WINDS GUSTING 
BETWEEN 35 TO 50 MPH WILL CONTINUE OVER PARTS OF NORTHEAST AND
EAST CENTRAL MISSOURI AND OVER PARTS OF WEST CENTRAL THROUGH
SOUTHWEST ILLINOIS THROUGH EARLY THIS EVENING. A STRONG LOW
PRESSURE CENTER OVER EASTERN IOWA WAS RESPONSIBLE FOR THE STRONG
SURFACE WINDS OVER THE REGION. WIND GUSTS WILL SLOWLY RETREAT TO 20
TO 30 MPH LATER THIS EVENING OVER THE REGION.

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE
30 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 45 AND 57 MPH. WINDS OF
THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA
PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION
UNTIL THE WINDS SUBSIDE.

$$

RP
1 follow-up statement
000 
WWUS73 KLSX 112357
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
657 PM CDT FRI APR 11 2008

...THE WIND ADVISORY WILL BE ALLOWED TO EXPIRE...

GUSTY WINDS WILL CONTINUE ACROSS MUCH OF THE REGION THIS
EVENING...BUT THE WINDS ARE EXPECTED TO BE BELOW ADVISORY CRITERIA. 

ILZ058>060-064-065-069-095>102-MOZ036-052-061-063>065-120100-
/O.EXP.KLSX.WI.Y.0005.000000T0000Z-080412T0000Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
ADAMS IL-BROWN IL-PIKE IL-CALHOUN IL-JERSEY IL-MADISON IL-
ST. CLAIR IL-MONROE IL-PIKE-LINCOLN-ST. CHARLES-ST. LOUIS-
ST. LOUIS CITY-JEFFERSON-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...QUINCY...
EDWARDSVILLE...BELLEVILLE...BOWLING GREEN...ST CHARLES...ST LOUIS
657 PM CDT FRI APR 11 2008

...WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING...

THE WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING. 

A DEEP LOW PRESSURE SYSTEM OVER THE UPPER MIDWEST WILL CAUSE GUSTY
WINDS THIS EVENING. WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED TO
CONTINUE DURING THE EVENING...ESPECIALLY ACROSS NORTHEAST MISSOURI
AND WEST CENTRAL ILLINOIS.

$$

SCHROEDER

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 7:31 PM CDTSevere Thunderstorm WarningLSXMarion24 min
Apr 11, 9:32 AM CDTWind AdvisoryLSXAdams, Bond, Brown, Calhoun, Clinton, Fayette and 8 more4 hr

Nearby

Wind Advisories in Illinois, 2008Wind Advisories in Missouri, 2008Every wind advisory in 2008

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.