Alert archive / Indiana / Wind Advisories in 2009

Wind Advisory 1, NWS Chicago, IL

February 11, 20094 counties in Illinois; 5 counties in Indiana

NWS Chicago, IL issued this wind advisory at Feb 11, 2009, 3:40 AM CST for 4 counties in Illinois; 5 counties in Indiana. It took effect at Feb 11, 2009, 3:00 PM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2009, 3:40 AM CST (09:40 UTC)
In effect from
Feb 11, 2009, 3:00 PM CST
Expired
Feb 11, 2009, 10:02 PM CST
In force
7 hr
Issued by
NWS Chicago, IL

Counties Ford County, IL, Iroquois County, IL, Kankakee County, IL, Livingston County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 78 km from the middle of the area, began a volume at 09:43 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.7 hours before the alert went out and 369 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, Cncnati-Daytn, OH at 00:00Z on 2009-02-11Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2009-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 215 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
502 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
215 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 10, 9:29 PM CSTGale WarningLOT37 hr
Feb 10, 9:56 PM CSTRiver Flood WarningLOTKankakee48 hr
Feb 10, 10:03 PM CSTRiver Flood WarningLOTWinnebago24 hr
Feb 10, 10:15 PM CSTRiver Flood AdvisoryLOTBoone34 hr
Feb 11, 1:31 AM CSTDense Fog AdvisoryLOTBoone, DeKalb, DuPage, Grundy, Kane, Kankakee and 8 more7 hr
Feb 11, 9:23 AM CSTRiver Flood WarningLOTLake4 days
Feb 11, 9:23 AM CSTRiver Flood WarningLOTIroquois24 hr
Feb 11, 9:23 AM CSTRiver Flood WarningLOTLaSalle36 hr
Feb 11, 10:52 AM CSTRiver Flood AdvisoryLOTLaSalle47 hr
Feb 11, 11:43 AM CSTRiver Flood WarningLOTGrundy34 hr
Feb 11, 11:43 AM CSTRiver Flood WarningLOTBureau, LaSalle6 days
Feb 11, 1:05 PM CSTRiver Flood AdvisoryLOTOgle20 hr
Feb 11, 9:23 AM CSTRiver Flood WarningLOTJasper24 hr
Feb 11, 9:23 AM CSTRiver Flood WarningLOTPorter8 days
Feb 11, 9:23 AM CSTRiver Flood WarningLOTJasper, Porter9 days

Nearby

Wind Advisories in Indiana, 2009Wind Advisories in Illinois, 2009Every wind advisory in 2009

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.