Alert archive / Missouri / Mesoscale Discussions in 2014

Mesoscale Discussion 1791

October 2, 201412 counties in Illinois; 9 counties in Kansas; 43 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Oct 2, 2014, 2:33 AM CDT for 12 counties in Illinois; 9 counties in Kansas; 43 counties in Missouri. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Oct 2, 2014, 2:33 AM CDT (07:33 UTC)
Expired
Oct 2, 2014, 4:30 AM CDT
In force
117 min
Issued by
the Storm Prediction Center
All 64 counties

Adams County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Montgomery County, IL, Morgan County, IL, Pike County, IL, Sangamon County, IL, Scott County, IL, Allen County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Audrain County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Cole County, MO, Cooper County, MO, Franklin County, MO, Gasconade County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Lincoln County, MO, Maries County, MO, Marion County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Pike County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Shelby County, MO, St. Clair County, MO, Vernon County, MO, Warren County, MO

The radar

The Pleasant Hill radar (KEAX), 106 km from the middle of the area, began a volume at 07:33 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, 7.6 hours before the alert went out and 174 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2014-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1108 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2014-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1108 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1358 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.9

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.

IssuedProductOfficeCountiesLasted
Oct 2, 11:59 AM CDTMesoscale DiscussionSPCAlexander, Bond, Christian, Clark, Clay, Clinton and 33 more91 min
Oct 2, 1:22 PM CDTSevere Thunderstorm WatchSPCBond, Clark, Clay, Clinton, Crawford, Cumberland and 24 more10 hr
Oct 2, 3:14 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Crawford, Cumberland and 24 more91 min
Oct 2, 5:25 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski95 min
Oct 2, 5:48 PM CDTTornado WatchSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski8 hr
Oct 2, 6:00 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Crawford, Cumberland and 24 more90 min
Oct 1, 9:20 PM CDTMesoscale DiscussionSPCAnderson, Douglas, Franklin, Jefferson, Johnson, Leavenworth and 3 more25 min
Oct 1, 9:52 PM CDTSevere Thunderstorm WatchSPCBourbon, Linn, Miami6 hr
Oct 1, 9:59 PM CDTMesoscale DiscussionSPCDecatur, Ellis, Gove, Graham, Lane, Ness and 9 more2 hr
Oct 1, 11:55 PM CDTMesoscale DiscussionSPCDouglas, Franklin, Johnson, Leavenworth, Linn, Miami and 1 more95 min
Oct 1, 11:59 PM CDTSevere Thunderstorm WatchSPCJewell, Mitchell, Osborne, Phillips, Rooks, Smith5 hr
Oct 2, 3:02 AM CDTMesoscale DiscussionSPCClay, Cloud, Jewell, Mitchell, Ottawa, Republic and 1 more118 min
Oct 2, 6:59 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Dickinson, Doniphan, Geary and 10 more61 min
Oct 2, 8:00 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Brown, Butler, Chase, Chautauqua and 34 more7 hr
Oct 2, 12:20 PM CDTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford8 hr
Oct 2, 3:16 PM CDTMesoscale DiscussionSPCCherokee59 min

Nearby

Mesoscale Discussions in Missouri, 2014Mesoscale Discussions in Illinois, 2014Mesoscale Discussions in Kansas, 2014Every mesoscale discussion in 2014

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.