Alert archive / Nebraska / Mesoscale Discussions in 2003
Mesoscale Discussion 1278
The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2003, 7:23 PM CDT for Monona County, Iowa; 13 counties in Nebraska; Gregory County, South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2003, 7:23 PM CDT (00:23 UTC)
- Expired
- Jun 9, 2003, 9:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Monona County, IA, Antelope County, NE, Boyd County, NE, Burt County, NE, Cedar County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Holt County, NE, Keya Paha County, NE, Knox County, NE, Pierce County, NE, Thurston County, NE, Wayne County, NE, Gregory County, SD
The radar
The Sioux Falls radar (KFSD), 144 km from the middle of the area, began a volume at 00:24 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, 0.4 hours before the alert went out and 208 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
- 223 J/kg
- Mixed-layer CIN
- -235 J/kg
- Mixed-layer LCL
- 2359 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 8:52 PM CDT | Mesoscale Discussion | SPC | Monona, Woodbury | 113 min |
| Jun 9, 9:22 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 32 more | 53 min |
| Jun 9, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 37 more | 6 hr |
| Jun 9, 10:10 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Fremont, Mills, Montgomery, Pottawattamie | 6 hr |
| Jun 9, 10:13 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Sioux | 2 hr |
| Jun 9, 11:20 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 16 more | 115 min |
| Jun 9, 11:46 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 119 min |
| Jun 10, 2:44 AM CDT | Mesoscale Discussion | SPC | Appanoose, Decatur, Lucas, Mahaska, Monroe, Ringgold and 2 more | 2 hr |
| Jun 9, 8:13 PM CDT | Mesoscale Discussion | SPC | Boyd, Holt | 32 min |
| Jun 10, 12:15 AM CDT | Severe Thunderstorm Watch | SPC | Nemaha, Richardson | 5 hr |
| Jun 10, 1:06 PM CDT | Mesoscale Discussion | SPC | Banner, Cheyenne, Kimball | 114 min |
| Jun 10, 6:20 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Chase, Cheyenne, Dawes, Deuel and 6 more | 2 hr |
| Jun 9, 8:03 PM CDT | Mesoscale Discussion | SPC | Brown, Edmunds, Faulk, Spink | 57 min |
Nearby
Mesoscale Discussions in Nebraska, 2003Mesoscale Discussions in Iowa, 2003Mesoscale Discussions in South Dakota, 2003Every mesoscale discussion in 2003
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.