Alert archive / Missouri / Mesoscale Discussions in 2015

Mesoscale Discussion 1523

July 24, 201511 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jul 24, 2015, 7:51 PM CDT for 11 counties in Missouri. It was in force for 24 min.

The area

The outline as issued.

The facts

Issued: Jul 24, 2015, 7:51 PM CDT (00:51 UTC)
Expired: Jul 24, 2015, 8:15 PM CDT
In force: 24 min
Issued by: the Storm Prediction Center

Counties Christian County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Laclede County, MO, Ozark County, MO, Polk County, MO, Stone County, MO, Taney County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 54 km from the middle of the area, began a volume at 00:52 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, 0.9 hours before the alert went out and 95 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: 2744 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1466 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 7.2

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
Jul 24, 7:49 PM CDT	Severe Thunderstorm Watch	SPC	Christian, Dallas, Douglas, Greene, Laclede, Ozark and 5 more	3 hr
Jul 24, 9:15 PM CDT	Mesoscale Discussion	SPC	Christian, Dallas, Douglas, Greene, Laclede, Ozark and 5 more	60 min
Jul 25, 12:33 AM CDT	Mesoscale Discussion	SPC	Andrew, Atchison, Buchanan, Caldwell, Clinton, Daviess and 9 more	2 hr
Jul 25, 2:55 PM CDT	Mesoscale Discussion	SPC	Cass, Clay, Jackson, Platte	95 min
Jul 25, 3:20 PM CDT	Severe Thunderstorm Watch	SPC	Cass, Clay, Jackson, Platte	8 hr
Jul 25, 6:46 PM CDT	Mesoscale Discussion	SPC	Cass, Clay, Jackson, Platte	89 min

Nearby

Mesoscale Discussions in Missouri, 2015 Every mesoscale discussion in 2015

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.