Alert archive / Indiana / Winter Storm Warnings in 2008

Winter Storm Warning 11, NWS Northern Indiana

February 25, 200821 counties in Indiana; 8 counties in Ohio; Branch County, Hillsdale County, Michigan

NWS Northern Indiana issued this winter storm warning at Feb 25, 2008, 4:50 PM EST for 21 counties in Indiana; 8 counties in Ohio; Branch County, Hillsdale County, Michigan. It took effect at Feb 25, 2008, 7:00 PM EST. It was in force for 18 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: Feb 25, 2008, 4:50 PM EST (21:50 UTC)
In effect from: Feb 25, 2008, 7:00 PM EST
Expired: Feb 26, 2008, 1:09 PM EST
In force: 18 hr
Issued by: NWS Northern Indiana

All 31 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, LaGrange County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Pulaski County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Branch County, MI, Hillsdale County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 43 km from the middle of the area, began a volume at 21:47 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 12:00Z, 9.8 hours before the alert went out and 227 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 633 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this winter storm warning went out at Feb 25, 6:24 AM EST, 10 hours 26 minutes earlier.

Area forecast discussion, Feb 25, 6:24 AM EST, 10 hours 26 minutes before

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Hazardous weather outlook, Feb 25, 5:16 AM EST, 11 hours 34 minutes before

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The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 25, 4:50 PM EST	Lake Effect Snow Watch	IWX	Marshall, Starke	24 hr
Feb 25, 4:50 PM EST	Snow and Blowing Snow Advisory	IWX		23 hr

Nearby

Winter Storm Warnings in Indiana, 2008 Winter Storm Warnings in Ohio, 2008 Winter Storm Warnings in Michigan, 2008 Every winter storm warning 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.