Alert archive / Nebraska / High Wind Watches in 2007

High Wind Watch 1, NWS Omaha, NE

January 6, 200725 counties in Nebraska; Monona County, Iowa

NWS Omaha, NE issued this high wind watch at Jan 6, 2007, 3:21 PM CST for 25 counties in Nebraska; Monona County, Iowa. It took effect at Jan 8, 2007, 8:00 AM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 6, 2007, 3:21 PM CST (21:21 UTC)
In effect from: Jan 8, 2007, 8:00 AM CST
Expired: Jan 7, 2007, 4:32 PM CST
In force
Issued by: NWS Omaha, NE

All 26 counties

Monona County, IA, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Knox County, NE, Lancaster County, NE, Madison County, NE, Pierce County, NE, Platte County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 55 km from the middle of the area, began a volume at 21:22 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.4 hours before the alert went out and 308 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: 1609 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 184 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 high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Omaha, NE wrote its last area forecast discussion before this high wind watch went out at Jan 6, 3:15 PM CST, 6 minutes earlier.

Area forecast discussion, Jan 6, 3:15 PM CST, 6 minutes before

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Hazardous weather outlook, Jan 6, 5:08 AM CST, 10 hours 13 minutes before

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Nearby

High Wind Watches in Nebraska, 2007 High Wind Watches in Iowa, 2007 Every high wind watch in 2007

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.