Alert archive / Nebraska / Mesoscale Discussions in 2003

Mesoscale Discussion 1283

June 9, 2003Monona County, Woodbury County, Iowa; 9 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2003, 8:52 PM CDT for Monona County, Woodbury County, Iowa; 9 counties in Nebraska. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued: Jun 9, 2003, 8:52 PM CDT (01:52 UTC)
Expired: Jun 9, 2003, 10:45 PM CDT
In force: 113 min
Issued by: the Storm Prediction Center

Counties Monona County, IA, Woodbury County, IA, Antelope County, NE, Cedar County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Knox County, NE, Pierce County, NE, Thurston County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 116 km from the middle of the area, began a volume at 01:52 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, 1.9 hours before the alert went out and 116 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 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

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.

Issued	Product	Office	Counties	Lasted
Jun 9, 7:23 PM CDT	Mesoscale Discussion	SPC	Monona	2 hr
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

Nearby

Mesoscale Discussions in Nebraska, 2003 Mesoscale Discussions in Iowa, 2003 Every 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.