Alert archive / Nebraska / Mesoscale Discussions in 2005

Mesoscale Discussion 2097

August 27, 200512 counties in Kansas; 14 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2005, 10:04 PM CDT for 12 counties in Kansas; 14 counties in Nebraska. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued
Aug 27, 2005, 10:04 PM CDT (03:04 UTC)
Expired
Aug 27, 2005, 11:00 PM CDT
In force
56 min
Issued by
the Storm Prediction Center
All 26 counties

Decatur County, KS, Finney County, KS, Gove County, KS, Graham County, KS, Lane County, KS, Logan County, KS, Norton County, KS, Scott County, KS, Sheridan County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Kearney County, NE, Nuckolls County, NE, Phelps County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 134 km from the middle of the area, began a volume at 03:06 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 00:00Z, 3.1 hours before the alert went out and 190 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, N. Platte/Lee Bi, NE at 00:00Z on 2005-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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, N. Platte/Lee Bi, NE at 00:00Z on 2005-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
3401 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
55 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
Aug 28, 2:42 PM CDTMesoscale DiscussionSPCAtchison, Barton, Brown, Chase, Clay, Cloud and 35 more2 hr
Aug 28, 5:09 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 8 more96 min
Aug 28, 5:25 PM CDTSevere Thunderstorm WatchSPCAtchison, Brown, Clay, Cloud, Doniphan, Jackson and 7 more3 hr
Aug 28, 11:49 AM CDTMesoscale DiscussionSPCAdams, Antelope, Blaine, Boone, Brown, Buffalo and 46 more116 min
Aug 28, 12:20 PM CDTSevere Thunderstorm WatchSPCBoone, Butler, Clay, Colfax, Fillmore, Gage and 23 more7 hr
Aug 28, 3:21 PM CDTMesoscale DiscussionSPCAdams, Boone, Butler, Cass, Clay, Colfax and 29 more84 min

Nearby

Mesoscale Discussions in Nebraska, 2005Mesoscale Discussions in Kansas, 2005Every mesoscale discussion in 2005

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.