Alert archive / Nebraska / Mesoscale Discussions in 2004
Mesoscale Discussion 1513
The Storm Prediction Center issued this mesoscale discussion at Jul 5, 2004, 1:16 AM CDT for 4 states. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Jul 5, 2004, 1:16 AM CDT (06:16 UTC)
- Expired
- Jul 5, 2004, 2:45 AM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 77 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cherokee County, IA, Crawford County, IA, Dallas County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Harrison County, IA, Ida County, IA, Madison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Plymouth County, IA, Pocahontas County, IA, Polk County, IA, Pottawattamie County, IA, Sac County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Webster County, IA, Woodbury County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Atchison County, MO, Holt County, MO, Nodaway County, MO, Boone County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Greeley County, NE, Hamilton County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE, York County, NE
The radar
The Omaha radar (KOAX), 29 km from the middle of the area, began a volume at 06:17 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 6.3 hours before the alert went out and 29 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.
- Mixed-layer CAPE
- 1889 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1675 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
066 ACUS11 KWNS 050617 SWOMCD SPC MCD 050616 IAZ000-MOZ000-KSZ000-NEZ000-SDZ000-050745- MESOSCALE DISCUSSION 1513 NWS STORM PREDICTION CENTER NORMAN OK 0116 AM CDT MON JUL 05 2004 AREAS AFFECTED...ERN NEB....WRN IA...NERN KS...NWRN MO CONCERNING...SEVERE THUNDERSTORM WATCH 555...557... VALID 050616Z - 050745Z IT APPEARS SEVERE TSTM WATCHES 555 AND 557 WILL NEED TO BE REPLACED WITH A NEW SEVERE TSTM WATCH COVERING SECTIONS OF ERN NEB/WRN IA...NERN KS AND NWRN MO. LARGE ARC OF OUTFLOW IN ADVANCE OF DEEP CONVECTIVELY INDUCED COLD POOL AND STRATIFORM RAIN AREA CONTINUES DEVELOPING NEWD TOWARD THE MO RIVER VALLEY AREA THIS MORNING. LATEST TRACK TAKES DEEP CONVECTION NEWD AT 35-40KT ACROSS ERN NEB AND INTO WRN IA THROUGH 09Z. AN AXIS OF STRONG INSTABILITY REMAINS FOCUSED ALONG SYNOPTIC BOUNDARY BISECTING IA...AS WELL AS AHEAD OF NRN OUTFLOW BOUNDARY NOW MOVING INTO NERN NEB. GIVEN FAST NEWD COLD POOL MOTION AND FCST OF STRENGTHENING MID LEVEL FLOW AS UPPER SHORT WAVE TROUGH MOVES EWD FROM THE HIGH PLAINS...CONVECTION SHOULD OCCASIONALLY REACH SEVERE LEVELS WITH HIGH WIND AND HAIL HAZARD SPREADING NEWD INTO EARLY MORNING. ..CARBIN.. 07/05/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...DMX...EAX...FSD...OAX...TOP...GID...LBF... 39089563 40389749 40849825 41399886 42799688 42989494 41909327
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 11:05 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Mills | 5 hr |
| Jul 5, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 31 more | 5 hr |
| Jul 5, 4:45 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 30 more | 2 hr |
| Jul 5, 3:00 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Dallas, Davis, Decatur, Des Moines and 22 more | 60 min |
| Jul 5, 4:20 PM CDT | Tornado Watch | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 51 more | 6 hr |
| Jul 5, 6:30 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 40 more | 60 min |
| Jul 4, 7:02 PM CDT | Mesoscale Discussion | SPC | Norton, Phillips | 58 min |
| Jul 4, 7:12 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 15 more | 2 hr |
| Jul 4, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | Cloud, Graham, Jewell, Mitchell, Norton, Osborne and 5 more | 7 hr |
| Jul 4, 9:21 PM CDT | Mesoscale Discussion | SPC | Butler, Chase, Cowley, Dickinson, Elk, Ellsworth and 11 more | 54 min |
| Jul 4, 9:40 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Barber, Barton, Butler, Chase and 44 more | 6 hr |
| Jul 4, 10:45 PM CDT | Mesoscale Discussion | SPC | Cloud, Jewell, Mitchell, Phillips, Republic, Smith | 60 min |
| Jul 4, 11:20 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Chase, Clark, Comanche and 30 more | 55 min |
| Jul 5, 2:06 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Barber, Butler, Chase, Chautauqua and 20 more | 114 min |
| Jul 5, 3:25 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 10 more | 6 hr |
| Jul 5, 6:02 AM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Labette, Montgomery, Neosho | 88 min |
| Jul 5, 12:40 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Rawlins, Sherman, Thomas | 2 hr |
| Jul 5, 2:20 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Logan, Rawlins, Sheridan and 3 more | 6 hr |
| Jul 5, 3:43 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Cherokee, Crawford, Labette and 5 more | 92 min |
| Jul 5, 4:21 PM CDT | Mesoscale Discussion | SPC | Allen, Barber, Bourbon, Butler, Chautauqua, Cherokee and 20 more | 114 min |
| Jul 5, 4:36 PM CDT | Mesoscale Discussion | SPC | Clark, Finney, Ford, Grant, Gray, Hamilton and 7 more | 54 min |
| Jul 5, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Barber, Bourbon, Butler, Chautauqua, Cherokee and 17 more | 5 hr |
| Jul 5, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Comanche, Edwards, Finney, Ford, Grant and 18 more | 6 hr |
| Jul 5, 5:52 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Graham, Logan, Norton, Rawlins and 4 more | 83 min |
| Jul 5, 6:55 AM CDT | Severe Thunderstorm Watch | SPC | Audrain, Benton, Boone, Callaway, Camden, Cole and 19 more | 4 hr |
| Jul 5, 9:12 AM CDT | Mesoscale Discussion | SPC | Franklin, Jefferson, Lincoln, Pike, Saint Charles, Saint Louis and 2 more | 63 min |
| Jul 5, 4:00 PM CDT | Tornado Watch | SPC | Audrain, Barton, Bates, Benton, Boone, Callaway and 46 more | 6 hr |
Nearby
Mesoscale Discussions in Nebraska, 2004Mesoscale Discussions in Iowa, 2004Mesoscale Discussions in Kansas, 2004Every mesoscale discussion 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.