Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 376
The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2011, 8:32 PM CDT for 36 counties in Kansas; 28 counties in Missouri; 12 counties in Oklahoma. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2011, 8:32 PM CDT (01:32 UTC)
- Expired
- Apr 8, 2011, 10:00 PM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 76 counties
Allen County, KS, Anderson County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Jefferson County, KS, Johnson County, KS, Kingman County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Pettis County, MO, Polk County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO, Alfalfa County, OK, Craig County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Major County, OK, Noble County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Washington County, OK
The radar
The Wichita radar (KICT), 134 km from the middle of the area, began a volume at 01:32 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Lamont, OK (KLMN), launched 00:00Z, 1.5 hours before the alert went out and 161 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3252 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
994
ACUS11 KWNS 090132
SWOMCD
SPC MCD 090132
MOZ000-KSZ000-OKZ000-090300-
MESOSCALE DISCUSSION 0376
NWS STORM PREDICTION CENTER NORMAN OK
0832 PM CDT FRI APR 08 2011
AREAS AFFECTED...NORTHERN OK AND SOUTH-CENTRAL/EASTERN KS INTO
WESTERN MO
CONCERNING...TORNADO WATCH 108...
VALID 090132Z - 090300Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 108 CONTINUES.
TORNADO WATCH 108 CONTINUES UNTIL 06Z ACROSS PORTIONS OF
NORTHERN/WESTERN OK AND SOUTH-CENTRAL/EASTERN KS. AN ADDITIONAL
WATCH IS PROBABLE ACROSS PORTIONS OF NORTHEAST KS/WEST-CENTRAL MO.
SUPERCELLS CONTINUE TO DEVELOP/SPLIT ACROSS FAR NORTH-CENTRAL OK AND
SOUTH-CENTRAL TO SOUTHEAST KS...ROUGHLY IN A CORRIDOR 50-70 MILES
EITHER SIDE OF I-35. LEFT SPLITTING/MOVING STORMS WILL CONTINUE TO
POSE A LARGE HAIL THREAT AS THEY MOVE NORTH-NORTHEASTWARD ACROSS
SOUTH-CENTRAL/EAST-CENTRAL KS OVER THE NEXT FEW HOURS...WHILE
RIGHT/EASTWARD MOVING SUPERCELLS WILL CONTINUE TO POSE A LARGE
HAIL/ISOLATED TORNADO RISK IN THE SHORT TERM. AIDED BY A
STRENGTHENING EASTERN BRANCH LOW LEVEL JET...THIS ACTIVITY IS
EXPECTED TO MOVE/EXPAND GENERALLY NORTHEASTWARD TOWARD /WITH
ADDITIONAL DEVELOPMENT NEAR AND NORTH OF/ A WEST-EAST BOUNDARY
ROUGHLY THAT CURRENTLY RESIDES PARALLEL TO /BUT SOUTH OF/ I-70 IN KS
AND MO. STEEP LAPSE ENVIRONMENT/AMPLE BUOYANCY WILL CONTINUE TO
SUPPORT A DOMINANT THREAT OF LARGE HAIL. WHILE THE LIKELIHOOD
THEREOF IS UNCLEAR...ONGOING RIGHT MOVING/SURFACE BASED TSTMS COULD
ULTIMATELY CONGEAL WITH TIME INTO A LOOSELY ORGANIZED EAST-NORTHEAST
MOVING COMPLEX ACROSS SOUTHEAST KS...WITH THE POSSIBILITY OF LARGE
HAIL/DAMAGING WINDS DEVELOPING INTO WESTERN MO LATER TONIGHT.
..GUYER.. 04/09/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LSX...SGF...EAX...TSA...TOP...ICT...OUN...DDC...
LAT...LON 36039772 36049899 37149860 39379627 39369303 38889215
37589250 36199661 36039772SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 9:01 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Atchison, Bourbon, Brown, Butler, Chautauqua and 35 more | 7 hr |
| Apr 8, 11:01 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Butler, Chautauqua, Cherokee, Coffey and 9 more | 59 min |
| Apr 8, 11:26 PM CDT | Mesoscale Discussion | SPC | Atchison, Bourbon, Doniphan, Douglas, Jackson, Jefferson and 7 more | 94 min |
| Apr 9, 1:52 AM CDT | Mesoscale Discussion | SPC | Cherokee | 53 min |
| Apr 9, 4:12 AM CDT | Mesoscale Discussion | SPC | Lincoln, Saint Charles, Saint Louis, City of Saint Louis | 93 min |
| Apr 9, 7:25 AM CDT | Severe Thunderstorm Watch | SPC | Mississippi, New Madrid | 6 hr |
Nearby
Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Missouri, 2011Mesoscale Discussions in Oklahoma, 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.