Alert archive / Nebraska / Mesoscale Discussions in 2013

Mesoscale Discussion 264

March 9, 20135 counties in Kansas; 19 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Mar 9, 2013, 8:35 PM CST for 5 counties in Kansas; 19 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 9, 2013, 8:35 PM CST (02:35 UTC)
Expired
Mar 10, 2013, 3:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 24 counties

Decatur County, KS, Norton County, KS, Rawlins County, KS, Sheridan County, KS, Thomas County, KS, Boone County, NE, Buffalo County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Harlan County, NE, Hitchcock County, NE, Howard County, NE, Kearney County, NE, Nance County, NE, Phelps County, NE, Red Willow County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE

The radar

The Grand Island radar (KUEX), 98 km from the middle of the area, began a volume at 02:38 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, 2.6 hours before the alert went out and 274 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 2013-03-10Temperature 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 2013-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 209 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
713 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
209 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 10, 1:16 PM CDTMesoscale DiscussionSPCBurt, Douglas, Washington5 hr

Nearby

Mesoscale Discussions in Nebraska, 2013Mesoscale Discussions in Kansas, 2013Every mesoscale discussion in 2013

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.