Alert archive / Missouri / Mesoscale Discussions in 2008

Mesoscale Discussion 617

April 10, 200815 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2008, 6:56 AM CDT for 15 counties in Missouri. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Apr 10, 2008, 6:56 AM CDT (11:56 UTC)
Expired: Apr 10, 2008, 8:00 AM CDT
In force: 64 min
Issued by: the Storm Prediction Center

Counties Christian County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Laclede County, MO, Maries County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Pulaski County, MO, Shannon County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 60 km from the middle of the area, began a volume at 11:58 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.

Tornado Watch 188Apr 10, 7:45 AM CDT

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.9 hours before the alert went out and 98 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: 615 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 315 m²/s²
0-3 km storm-relative helicity: 393 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
Apr 10, 3:00 AM CDT	Mesoscale Discussion	SPC	Dunklin, Mississippi, New Madrid, Pemiscot	60 min
Apr 10, 3:28 AM CDT	Tornado Watch	SPC	Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Iron and 10 more	7 hr
Apr 10, 7:44 AM CDT	Tornado Watch	SPC	Dent, Douglas, Howell, Oregon, Ozark, Shannon and 2 more	2 hr
Apr 10, 9:27 AM CDT	Mesoscale Discussion	SPC	Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 11 more	2 hr
Apr 10, 9:51 AM CDT	Tornado Watch	SPC	Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 11 more	7 hr
Apr 10, 10:51 AM CDT	Mesoscale Discussion	SPC	Butler, Cape Girardeau, Dunklin, Mississippi, New Madrid, Pemiscot and 2 more	84 min
Apr 10, 11:16 AM CDT	Mesoscale Discussion	SPC	Cape Girardeau	2 hr
Apr 10, 1:41 PM CDT	Mesoscale Discussion	SPC	Butler, Cape Girardeau, Dunklin, Mississippi, New Madrid, Pemiscot and 2 more	2 hr
Apr 10, 2:03 PM CDT	Mesoscale Discussion	SPC	Andrew, Barton, Bates, Benton, Buchanan, Caldwell and 21 more	117 min
Apr 10, 2:28 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Andrew, Atchison, Barton, Bates, Benton and 51 more	7 hr
Apr 10, 4:55 PM CDT	Tornado Watch	SPC	Adair, Audrain, Clark, Gentry, Grundy, Harrison and 15 more	5 hr
Apr 10, 5:03 PM CDT	Tornado Watch	SPC	Mississippi	6 hr
Apr 10, 6:44 PM CDT	Mesoscale Discussion	SPC	Adair, Andrew, Atchison, Audrain, Barton, Bates and 59 more	61 min

Nearby

Mesoscale Discussions in Missouri, 2008 Every mesoscale discussion in 2008

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.