Alert archive / Nebraska / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 461

June 13, 20048 counties in Iowa; Atchison County, Holt County, Nodaway County, Missouri; 18 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jun 13, 2004, 3:55 PM CDT for 8 counties in Iowa; Atchison County, Holt County, Nodaway County, Missouri; 18 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 13, 2004, 3:55 PM CDT (20:55 UTC)
Expired
Jun 13, 2004, 9:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 29 counties

Adams County, IA, Cass County, IA, Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Taylor County, IA, Atchison County, MO, Holt County, MO, Nodaway County, MO, Butler County, NE, Cass County, NE, Colfax County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Washington County, NE

The radar

The Omaha radar (KOAX), 38 km from the middle of the area, began a volume at 20:56 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

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

IssuedProductOfficeCountiesLasted
Jun 13, 3:59 PM CDTTornado WarningOAXButler46 min
Jun 13, 4:12 PM CDTSevere Thunderstorm WarningOAXSaunders63 min
Jun 13, 4:31 PM CDTTornado WarningOAXSaunders29 min
Jun 13, 4:39 PM CDTTornado WarningOAXLancaster51 min
Jun 13, 4:49 PM CDTFlash Flood WarningOAXSaunders4 hr
Jun 13, 4:54 PM CDTFlash Flood WarningOAXLancaster4 hr
Jun 13, 5:09 PM CDTTornado WarningOAXCass51 min
Jun 13, 5:16 PM CDTSevere Thunderstorm WarningOAXLancaster44 min
Jun 13, 5:32 PM CDTTornado WarningOAXOtoe58 min
Jun 13, 6:00 PM CDTSevere Thunderstorm WarningOAXCass15 min
Jun 13, 7:23 PM CDTSevere Thunderstorm WarningEAXNodaway67 min
Jun 13, 7:36 PM CDTTornado WarningEAXNodaway54 min
Jun 13, 8:29 PM CDTTornado WarningEAXNodaway46 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 12:00Z, 8.9 hours before the alert went out and 38 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 12:00Z on 2004-06-13Temperature 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 12:00Z on 2004-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
1481 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 12, 7:00 PM CDTMesoscale DiscussionSPCAllamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek2 hr
Jun 12, 7:09 PM CDTMesoscale DiscussionSPCAppanoose, Benton, Boone, Cedar, Clarke, Clinton and 32 more96 min
Jun 13, 6:54 PM CDTMesoscale DiscussionSPCAdams, Fremont, Mills, Montgomery, Page, Pottawattamie and 1 more66 min
Jun 12, 7:58 PM CDTMesoscale DiscussionSPCBarton, Cedar, Jasper, St. Clair, Vernon62 min
Jun 12, 7:59 PM CDTMesoscale DiscussionSPCBarton, Cedar, Jasper, St. Clair, Vernon61 min
Jun 12, 8:15 PM CDTTornado WatchSPCBarton, Jasper, Vernon3 hr
Jun 12, 9:06 PM CDTMesoscale DiscussionSPCAdair, Andrew, Atchison, Bates, Benton, Buchanan and 31 more84 min
Jun 12, 10:00 PM CDTSevere Thunderstorm WatchSPCAdair, Andrew, Audrain, Barton, Bates, Benton and 49 more5 hr
Jun 12, 11:47 PM CDTMesoscale DiscussionSPCBarry, Christian, Dade, Greene, Jasper, Lawrence and 5 more88 min
Jun 13, 1:44 AM CDTMesoscale DiscussionSPCBarton, Cedar, Dade, Jasper, Lawrence, McDonald and 2 more91 min
Jun 13, 2:46 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Caldwell, Clinton, Daviess and 7 more119 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2004Severe Thunderstorm Watches in Iowa, 2004Severe Thunderstorm Watches in Missouri, 2004Every severe thunderstorm watch in 2004

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.