Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 936

May 27, 200418 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 27, 2004, 3:27 AM CDT for 18 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 27, 2004, 3:27 AM CDT (08:27 UTC)
Expired: May 27, 2004, 5:30 AM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Laclede County, MO, Lawrence County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, Stone County, MO, Texas County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 61 km from the middle of the area, began a volume at 08:29 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

Springfield, MO (KSGF), launched 00:00Z, 8.5 hours before the alert went out and 106 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: 1669 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 273 m²/s²
0-3 km storm-relative helicity: 351 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 12.9

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
May 26, 7:57 PM CDT	Mesoscale Discussion	SPC	Barry, Barton, Benton, Bollinger, Butler, Camden and 46 more	63 min
May 26, 8:29 PM CDT	Mesoscale Discussion	SPC	McDonald	91 min
May 26, 8:30 PM CDT	Tornado Watch	SPC	Barton, Bates, Benton, Camden, Cedar, Dade and 15 more	6 hr
May 26, 8:55 PM CDT	Tornado Watch	SPC	Bollinger, Cape Girardeau, Crawford, Dent, Franklin, Gasconade and 8 more	5 hr
May 26, 9:36 PM CDT	Mesoscale Discussion	SPC	Audrain, Callaway, Lincoln, Marion, Monroe, Montgomery and 5 more	54 min
May 26, 11:14 PM CDT	Mesoscale Discussion	SPC	Barton, Bates, Benton, Bollinger, Boone, Callaway and 49 more	2 hr
May 26, 11:40 PM CDT	Severe Thunderstorm Watch	SPC	Cass, Clay, Cooper, Henry, Howard, Jackson and 6 more	5 hr
May 27, 1:16 AM CDT	Mesoscale Discussion	SPC	Carroll, Cass, Clay, Cooper, Howard, Jackson and 6 more	119 min
May 27, 1:50 AM CDT	Tornado Watch	SPC	Barton, Camden, Cedar, Christian, Dade, Dallas and 15 more	4 hr
May 27, 3:55 AM CDT	Mesoscale Discussion	SPC	Andrew, Atchison, Buchanan, Caldwell, Carroll, Cass and 14 more	95 min
May 27, 11:10 AM CDT	Mesoscale Discussion	SPC	Adair, Audrain, Chariton, Clark, Daviess, Gentry and 20 more	2 hr
May 27, 11:55 AM CDT	Severe Thunderstorm Watch	SPC	Adair, Atchison, Clark, Gentry, Grundy, Harrison and 11 more	6 hr
May 27, 1:52 PM CDT	Mesoscale Discussion	SPC	Adair, Andrew, Audrain, Boone, Buchanan, Caldwell and 32 more	113 min
May 27, 2:25 PM CDT	Severe Thunderstorm Watch	SPC	Andrew, Audrain, Boone, Buchanan, Caldwell, Callaway and 36 more	7 hr
May 27, 3:37 PM CDT	Mesoscale Discussion	SPC	Audrain, Boone, Caldwell, Callaway, Carroll, Chariton and 28 more	113 min
May 27, 5:01 PM CDT	Mesoscale Discussion	SPC	Andrew, Audrain, Benton, Boone, Buchanan, Caldwell and 53 more	89 min

Nearby

Mesoscale Discussions in Missouri, 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.