Alert archive / Nebraska / Winter Storm Warnings in 2006

Winter Storm Warning 1, NWS Omaha, NE

February 15, 20066 counties in Nebraska; Monona County, Iowa

NWS Omaha, NE issued this winter storm warning at Feb 15, 2006, 4:07 AM CST for 6 counties in Nebraska; Monona County, Iowa. It took effect at Feb 15, 2006, 9:00 PM CST. It was in force for 15 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 15, 2006, 4:07 AM CST (10:07 UTC)
In effect from
Feb 15, 2006, 9:00 PM CST
Expired
Feb 16, 2006, 11:58 AM CST
In force
15 hr
Issued by
NWS Omaha, NE

Counties Monona County, IA, Antelope County, NE, Cedar County, NE, Knox County, NE, Pierce County, NE, Thurston County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 129 km from the middle of the area, began a volume at 10:07 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

Omaha, NE (KOAX), launched 00:00Z, 10.1 hours before the alert went out and 129 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, Omaha, NE at 00:00Z on 2006-02-15Temperature 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, Omaha, NE at 00:00Z on 2006-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
1970 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 15, 3:44 PM CSTSnow and Blowing Snow AdvisoryOAXAntelope, Boone, Burt, Cedar, Colfax, Cuming and 9 more24 hr
Feb 15, 3:44 PM CSTWinter Weather AdvisoryOAXButler, Cass, Douglas, Gage, Jefferson, Johnson and 9 more24 hr

Nearby

Winter Storm Warnings in Nebraska, 2006Winter Storm Warnings in Iowa, 2006Every winter storm warning in 2006

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.