Alert archive / Indiana / Winter Storm Watches in 2008

Winter Storm Watch 3, NWS Northern Indiana

February 10, 20087 counties in Indiana; 6 counties in Ohio

NWS Northern Indiana issued this winter storm watch at Feb 10, 2008, 3:15 PM EST for 7 counties in Indiana; 6 counties in Ohio. It took effect at Feb 11, 2008, 7:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 10, 2008, 3:15 PM EST (20:15 UTC)
In effect from: Feb 11, 2008, 7:00 PM EST
Expired: Feb 11, 2008, 3:12 PM EST
In force
Issued by: NWS Northern Indiana

Counties Adams County, IN, Allen County, IN, Blackford County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, Wells County, IN, Allen County, OH, Defiance County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 92 km from the middle of the area, began a volume at 20:19 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, 8.3 hours before the alert went out and 182 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: 1144 m above ground
0-6 km bulk shear: 124 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 332 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 watch 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 watch went out at Feb 9, 6:56 PM EST, 20 hours 19 minutes earlier.

Area forecast discussion, Feb 9, 6:56 PM EST, 20 hours 19 minutes before

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Nearby

Winter Storm Watches in Indiana, 2008 Winter Storm Watches in Ohio, 2008 Every winter storm watch 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.