Alert archive / Missouri / Mesoscale Discussions in 2018

Mesoscale Discussion 883

June 26, 2018Monroe County, Illinois; 38 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2018, 2:19 AM CDT for Monroe County, Illinois; 38 counties in Missouri. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Jun 26, 2018, 2:19 AM CDT (07:19 UTC)
Expired
Jun 26, 2018, 4:15 AM CDT
In force
116 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 39 counties

Monroe County, IL, Barry County, MO, Benton County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Cole County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Hickory County, MO, Jasper County, MO, Jefferson County, MO, Laclede County, MO, Lawrence County, MO, Lincoln County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Montgomery County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Saint Charles County, MO, Saint Louis County, MO, Stone County, MO, Warren County, MO, Washington County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 60 km from the middle of the area, began a volume at 07:17 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, 7.3 hours before the alert went out and 111 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 2018-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 156 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 2018-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
156 J/kg
Mixed-layer CIN
-165 J/kg
Mixed-layer LCL
1534 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 8:08 PM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more2 hr
Jun 26, 7:39 AM CDTMesoscale DiscussionSPCAlexander, Bond, Christian, Clark, Clay, Clinton and 39 more2 hr
Jun 26, 9:26 AM CDTSevere Thunderstorm WatchSPCEdwards, Gallatin, Hardin, Massac, Pope, Saline and 2 more5 hr
Jun 26, 1:31 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Jo Daviess, Kane and 5 more89 min
Jun 26, 1:53 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Jackson, Johnson, Perry, Pulaski and 3 more67 min
Jun 26, 2:22 PM CDTSevere Thunderstorm WatchSPCAlexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 10 more6 hr
Jun 26, 12:16 PM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Cass, Cedar, Dade and 10 more59 min
Jun 26, 12:35 PM CDTSevere Thunderstorm WatchSPCBarton, Bates, Benton, Camden, Carroll, Cass and 31 more7 hr
Jun 26, 12:56 PM CDTMesoscale DiscussionSPCBarry, McDonald, Newton, Stone64 min
Jun 26, 1:26 PM CDTSevere Thunderstorm WatchSPCBarry, Christian, Douglas, Jasper, Lawrence, McDonald and 4 more6 hr
Jun 26, 2:46 PM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Camden, Cass and 29 more89 min
Jun 26, 5:26 PM CDTSevere Thunderstorm WatchSPCButler, Carter, Dunklin, Mississippi, New Madrid, Pemiscot and 3 more6 hr
Jun 26, 6:49 PM CDTMesoscale DiscussionSPCHowell, Oregon, Ozark, Ripley116 min

Nearby

Mesoscale Discussions in Missouri, 2018Mesoscale Discussions in Illinois, 2018Every mesoscale discussion in 2018

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.