Alert archive / Nebraska / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 541

June 27, 20057 counties in Iowa; Atchison County, Missouri; 42 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jun 27, 2005, 8:35 PM CDT for 7 counties in Iowa; Atchison County, Missouri; 42 counties in Nebraska. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 27, 2005, 8:35 PM CDT (01:35 UTC)
Expired
Jun 28, 2005, 4:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 50 counties

Crawford County, IA, Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Pottawattamie County, IA, Shelby County, IA, Atchison County, MO, Adams County, NE, Boone County, NE, Buffalo County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dawson County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Johnson County, NE, Kearney County, NE, Lancaster County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Otoe County, NE, Phelps County, NE, Platte County, NE, Polk County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Valley County, NE, Washington County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 104 km from the middle of the area, began a volume at 01:35 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.

Warnings issued inside it

27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 27, 8:41 PM CDTSevere Thunderstorm WarningGIDFranklin55 min
Jun 27, 8:45 PM CDTSevere Thunderstorm WarningOAXSarpy45 min
Jun 27, 8:53 PM CDTSevere Thunderstorm WarningOAXCass37 min
Jun 27, 9:31 PM CDTSevere Thunderstorm WarningOAXCass, Sarpy44 min
Jun 27, 10:08 PM CDTSevere Thunderstorm WarningGIDPolk67 min
Jun 27, 10:15 PM CDTSevere Thunderstorm WarningOAXCass30 min
Jun 27, 10:23 PM CDTSevere Thunderstorm WarningOAXButler, Seward52 min
Jun 27, 10:24 PM CDTSevere Thunderstorm WarningGIDMerrick39 min
Jun 27, 10:42 PM CDTFlash Flood WarningOAXCass6 hr
Jun 27, 10:45 PM CDTSevere Thunderstorm WarningOAXCass32 min
Jun 27, 11:37 PM CDTSevere Thunderstorm WarningGIDDawson53 min
Jun 27, 11:44 PM CDTSevere Thunderstorm WarningOAXLancaster31 min
Jun 27, 11:58 PM CDTSevere Thunderstorm WarningLBFCuster53 min
Jun 27, 11:58 PM CDTSevere Thunderstorm WarningOAXCuming32 min
Jun 28, 12:06 AM CDTSevere Thunderstorm WarningOAXSarpy39 min
Jun 28, 12:11 AM CDTSevere Thunderstorm WarningGIDGosper54 min
Jun 28, 12:14 AM CDTFlash Flood WarningOAXSarpy4 hr
Jun 28, 12:29 AM CDTSevere Thunderstorm WarningOAXPottawattamie33 min
Jun 28, 12:35 AM CDTSevere Thunderstorm WarningGIDValley55 min
Jun 28, 12:43 AM CDTSevere Thunderstorm WarningOAXCass, Sarpy32 min
Jun 28, 12:59 AM CDTSevere Thunderstorm WarningOAXMills33 min
Jun 28, 1:13 AM CDTSevere Thunderstorm WarningGIDGreeley47 min
Jun 28, 1:14 AM CDTSevere Thunderstorm WarningOAXCass, Lancaster46 min
Jun 28, 1:39 AM CDTSevere Thunderstorm WarningOAXFremont51 min
Jun 28, 1:44 AM CDTSevere Thunderstorm WarningGIDFranklin36 min
Jun 28, 1:50 AM CDTSevere Thunderstorm WarningOAXBoone26 min
Jun 28, 2:59 AM CDTSevere Thunderstorm WarningEAXAtchison, Nodaway46 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.6 hours before the alert went out and 159 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 2005-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1656 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, Omaha, NE at 00:00Z on 2005-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 square meters per square second.193958Sfc1 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
1656 J/kg
Mixed-layer CIN
-133 J/kg
Mixed-layer LCL
2078 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
325 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 8:16 PM CDTMesoscale DiscussionSPCAdams, Audubon, Cass, Crawford, Fremont, Harrison and 7 more119 min
Jun 27, 11:37 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Carroll, Cass and 24 more83 min
Jun 28, 12:55 AM CDTSevere Thunderstorm WatchSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more5 hr
Jun 28, 2:57 AM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Crawford, Fremont, Harrison and 9 more93 min
Jun 27, 7:53 PM CDTMesoscale DiscussionSPCArthur, Banner, Box Butte, Cherry, Cheyenne, Dawes and 13 more2 hr
Jun 27, 9:39 PM CDTMesoscale DiscussionSPCAntelope, Blaine, Boyd, Brown, Cedar, Garfield and 8 more66 min
Jun 27, 9:50 PM CDTSevere Thunderstorm WatchSPCBlaine, Boyd, Brown, Garfield, Holt, Keya Paha and 4 more6 hr
Jun 28, 2:32 PM CDTMesoscale DiscussionSPCBox Butte, Dawes, Morrill118 min
Jun 28, 3:45 PM CDTTornado WatchSPCBox Butte, Cherry, Dawes, Sheridan7 hr
Jun 28, 5:13 PM CDTMesoscale DiscussionSPCArthur, Banner, Chase, Cheyenne, Deuel, Dundy and 11 more92 min
Jun 28, 6:26 PM CDTMesoscale DiscussionSPCBox Butte, Boyd, Brown, Cherry, Dawes, Keya Paha and 2 more94 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2005Severe Thunderstorm Watches in Iowa, 2005Severe Thunderstorm Watches in Missouri, 2005Every severe thunderstorm watch 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.