Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 959

May 27, 200419 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 27, 2004, 9:08 PM CDT for 19 counties in Missouri. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: May 27, 2004, 9:08 PM CDT (02:08 UTC)
Expired: May 27, 2004, 10:45 PM CDT
In force: 97 min
Issued by: the Storm Prediction Center

Counties Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent 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), 57 km from the middle of the area, began a volume at 02:11 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, 2.1 hours before the alert went out and 103 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: 1874 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.3

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 27, 7:12 PM CDT	Mesoscale Discussion	SPC	Bollinger, Butler, Camden, Cape Girardeau, Carter, Cole and 36 more	93 min
May 27, 7:40 PM CDT	Tornado Watch	SPC	Bollinger, Cape Girardeau, Franklin, Iron, Jefferson, Madison and 5 more	5 hr
May 27, 10:27 PM CDT	Mesoscale Discussion	SPC	Bollinger, Cape Girardeau, Iron, Madison, Reynolds, Wayne	93 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.