Alert archive / Arkansas / Mesoscale Discussions in 2016

Mesoscale Discussion 1200

July 8, 201623 counties in Arkansas; 4 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jul 8, 2016, 1:45 AM CDT for 23 counties in Arkansas; 4 counties in Missouri. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Jul 8, 2016, 1:45 AM CDT (06:45 UTC)
Expired
Jul 8, 2016, 3:15 AM CDT
In force
90 min
Issued by
the Storm Prediction Center
All 27 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Cleburne County, AR, Craighead County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Poinsett County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Howell County, MO, Oregon County, MO, Ozark County, MO, Ripley County, MO

The radar

The Springfield radar (KSGF), 122 km from the middle of the area, began a volume at 06:47 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, 6.8 hours before the alert went out and 112 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 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2840 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 2016-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
2840 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
1070 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
329 m²/s²
Significant tornado parameter
0.4
Supercell composite
10.7

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
Jul 8, 9:23 AM CDTMesoscale DiscussionSPCBenton, Crawford, Madison, Sebastian, Washington97 min
Jul 8, 1:59 PM CDTMesoscale DiscussionSPCBaxter, Boone, Clay, Cleburne, Craighead, Fulton and 12 more2 hr
Jul 8, 2:26 PM CDTSevere Thunderstorm WatchSPCBaxter, Clay, Cleburne, Craighead, Crittenden, Cross and 15 more5 hr
Jul 8, 4:42 PM CDTMesoscale DiscussionSPCClay, Craighead, Greene, Lawrence, Mississippi, Randolph and 1 more63 min
Jul 7, 8:01 PM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Camden, Cass, Cedar and 11 more119 min
Jul 7, 8:21 PM CDTSevere Thunderstorm WatchSPCAudrain, Barry, Barton, Bates, Benton, Boone and 37 more6 hr
Jul 7, 11:01 PM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Boone, Callaway, Camden and 16 more119 min

Nearby

Mesoscale Discussions in Arkansas, 2016Mesoscale Discussions in Missouri, 2016Every mesoscale discussion in 2016

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.