Alert archive / Missouri / Mesoscale Discussions in 2011

Mesoscale Discussion 1002

May 28, 201112 counties in Kansas; 19 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 28, 2011, 6:06 AM CDT for 12 counties in Kansas; 19 counties in Missouri. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued
May 28, 2011, 6:06 AM CDT (11:06 UTC)
Expired
May 28, 2011, 7:30 AM CDT
In force
84 min
Issued by
the Storm Prediction Center
All 31 counties

Allen County, KS, Anderson County, KS, Bourbon County, KS, Chase County, KS, Coffey County, KS, Crawford County, KS, Greenwood County, KS, Linn County, KS, Lyon County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Cole County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Laclede County, MO, Maries County, MO, Miller County, MO, Morgan County, MO, Osage County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 95 km from the middle of the area, began a volume at 11:05 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, 11.1 hours before the alert went out and 125 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 2011-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 333 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
333 m²/s²
0-3 km storm-relative helicity
511 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

765 
ACUS11 KWNS 281107
SWOMCD
SPC MCD 281106
MOZ000-KSZ000-281230-

MESOSCALE DISCUSSION 1002
NWS STORM PREDICTION CENTER NORMAN OK
0606 AM CDT SAT MAY 28 2011

AREAS AFFECTED...E CENTRAL AND SERN KS EWD INTO S CENTRAL MO

CONCERNING...SEVERE THUNDERSTORM WATCH 390...

VALID 281106Z - 281230Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 390
CONTINUES.

ONGOING/STEADY DECREASE IN STORM INTENSITY/SEVERITY SHOULD
CONTINUE...BUT ISOLATED/MARGINAL HAIL REMAINS POSSIBLE.

STRONGER ELEVATED SUPERCELL STORMS WHICH DEVELOPED EARLIER OVER S
CENTRAL KS HAVE DISSIPATED...WITH SOMEWHAT LESS INTENSE STORMS
SHIFTING EWD ACROSS E CENTRAL KS INTO WRN AND CENTRAL MO ATTM.  THIS
EWD SHIFT SHOULD CONTINUE...AS LATEST VWP/PROFILER DATA INDICATE
STEADY VEERING OF THE LOW-LEVEL JET OVER THE PAST 1-2 HOURS.  IF
PRESENT TRENDS CONTINUE AS ANTICIPATED...WW CAN LIKELY BE CANCELLED
PRIOR TO THE SCHEDULED 28/16Z EXPIRATION.

..GOSS.. 05/28/2011

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LSX...SGF...EAX...TOP...ICT...

LAT...LON   37519579 37989710 38459686 38609368 38659186 37629151
            37369171 37519579

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 28, 2:50 AM CDTMesoscale DiscussionSPCAllen, Anderson, Barber, Barton, Bourbon, Butler and 44 more85 min
May 28, 4:11 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Bourbon, Butler, Chase, Coffey and 17 more5 hr
May 28, 6:34 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chautauqua, Coffey and 11 more116 min
May 28, 12:15 PM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Caldwell, Carroll, Chariton and 22 more90 min
May 28, 5:39 PM CDTMesoscale DiscussionSPCLincoln, Saint Charles, Saint Louis, Warren, City of Saint Louis66 min

Nearby

Mesoscale Discussions in Missouri, 2011Mesoscale Discussions in Kansas, 2011Every mesoscale discussion in 2011

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.