Alert archive / Missouri / Mesoscale Discussions in 2009

Mesoscale Discussion 1004

June 9, 2009Bourbon County, Linn County, Kansas; 15 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2009, 12:59 PM CDT for Bourbon County, Linn County, Kansas; 15 counties in Missouri. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: Jun 9, 2009, 12:59 PM CDT (17:59 UTC)
Expired: Jun 9, 2009, 2:30 PM CDT
In force: 91 min
Issued by: the Storm Prediction Center

Counties Bourbon County, KS, Linn County, KS, Bates County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Laclede County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 75 km from the middle of the area, began a volume at 18:02 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 357Jun 9, 1:30 PM CDT

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 6.0 hours before the alert went out and 112 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: 1981 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 510 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.1

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, 7:16 AM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Clay, Cloud, Dickinson, Douglas and 32 more	59 min
Jun 9, 8:40 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Chase, Clay, Cloud and 22 more	65 min
Jun 9, 9:02 AM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Chase and 34 more	6 hr
Jun 9, 11:11 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Butler and 38 more	94 min
Jun 9, 1:31 PM CDT	Tornado Watch	SPC	Bourbon, Cherokee, Crawford	8 hr
Jun 9, 1:34 PM CDT	Mesoscale Discussion	SPC	Barber, Butler, Chautauqua, Cowley, Edwards, Elk and 15 more	86 min
Jun 9, 2:34 PM CDT	Tornado Watch	SPC	Allen, Barber, Butler, Chautauqua, Comanche, Cowley and 17 more	7 hr
Jun 9, 6:22 PM CDT	Mesoscale Discussion	SPC	Allen, Barber, Bourbon, Butler, Chautauqua, Cherokee and 23 more	53 min
Jun 8, 7:18 PM CDT	Mesoscale Discussion	SPC	Bollinger, Cape Girardeau, Carter, Howell, Iron, Madison and 11 more	57 min
Jun 8, 9:35 PM CDT	Mesoscale Discussion	SPC	Bollinger, Butler, Cape Girardeau, Carter, Madison, Mississippi and 4 more	55 min
Jun 9, 3:04 PM CDT	Mesoscale Discussion	SPC	Bollinger, Butler, Cape Girardeau, Carter, Iron, Madison and 10 more	86 min
Jun 9, 3:41 PM CDT	Severe Thunderstorm Watch	SPC	Bollinger, Butler, Cape Girardeau, Carter, Crawford, Iron and 12 more	7 hr

Nearby

Mesoscale Discussions in Missouri, 2009 Mesoscale Discussions in Kansas, 2009 Every mesoscale discussion in 2009

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.