Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 1247

June 13, 200410 counties in Kansas; 13 counties in Missouri; 7 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2004, 2:46 PM CDT for 10 counties in Kansas; 13 counties in Missouri; 7 counties in Nebraska. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2004, 2:46 PM CDT (19:46 UTC)
Expired: Jun 13, 2004, 4:45 PM CDT
In force: 119 min
Issued by: the Storm Prediction Center

All 30 counties

Atchison County, KS, Brown County, KS, Clay County, KS, Doniphan County, KS, Jackson County, KS, Jefferson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Washington County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Worth County, MO, Gage County, NE, Jefferson County, NE, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE

The radar

The Topeka radar (KTWX), 127 km from the middle of the area, began a volume at 19:48 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.

Severe Thunderstorm Watch 461Jun 13, 3:55 PM CDT

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 7.8 hours before the alert went out and 155 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: 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

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 12, 7:58 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 3 more	62 min
Jun 12, 7:59 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 3 more	61 min
Jun 12, 8:15 PM CDT	Tornado Watch	SPC	Allen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 6 more	3 hr
Jun 12, 9:06 PM CDT	Mesoscale Discussion	SPC	Anderson, Atchison, Barton, Brown, Chase, Clay and 36 more	84 min
Jun 12, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Butler and 40 more	5 hr
Jun 12, 11:47 PM CDT	Mesoscale Discussion	SPC	Cherokee	88 min
Jun 13, 1:44 AM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Butler, Chase, Chautauqua, Cherokee and 18 more	91 min
Jun 13, 6:54 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Jackson, Marshall, Nemaha	66 min
Jun 13, 3:55 PM CDT	Severe Thunderstorm Watch	SPC	Atchison, Holt, Nodaway	5 hr

Nearby

Mesoscale Discussions in Missouri, 2004 Mesoscale Discussions in Kansas, 2004 Mesoscale Discussions in Nebraska, 2004 Every 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.