Alert archive / Kansas / Mesoscale Discussions in 2009

Mesoscale Discussion 1069

June 11, 200914 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2009, 11:07 PM CDT for 14 counties in Kansas. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued: Jun 11, 2009, 11:07 PM CDT (04:07 UTC)
Expired: Jun 12, 2009, 12:00 AM CDT
In force: 53 min
Issued by: the Storm Prediction Center

Counties Finney County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Lane County, KS, Meade County, KS, Scott County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Wichita County, KS

The radar

The Dodge City radar (KDDC), 136 km from the middle of the area, began a volume at 04:11 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

Dodge City, (KDDC), launched 00:00Z, 4.1 hours before the alert went out and 141 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 342 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
ACUS11 KWNS 120407
SWOMCD
SPC MCD 120407 
KSZ000-COZ000-120500-

MESOSCALE DISCUSSION 1069
NWS STORM PREDICTION CENTER NORMAN OK
1107 PM CDT THU JUN 11 2009

AREAS AFFECTED...SOUTHWEST KS

CONCERNING...SEVERE THUNDERSTORM WATCH 384...

VALID 120407Z - 120500Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 384
CONTINUES.

SEVERE TSTM WATCH 384 CONTINUES UNTIL 10Z ACROSS PORTIONS OF
SOUTHWEST KS. PRIMARY POTENTIAL CONTINUES TO BE LARGE HAIL...WITH
DAMAGING WINDS AND PERHAPS A BRIEF TORNADO POSSIBLE AS WELL.

LONG LIVED SUPERCELL WITH HISTORY OF LARGE HAIL CONTINUES TO
STEADILY PROGRESS EAST-SOUTHEASTWARD ACROSS STANTON/HAMILTON
COUNTIES KS AS OF 04Z. LOW LEVEL SOUTHEASTERLY FLOW IN THE LOWEST 1
KM HAS NOTABLY INCREASED AHEAD OF THIS SUPERCELL OVER THE PAST 1-2
HOURS PER TRENDS IN DODGE CITY WSR-88D VWP DATA. RATHER FAVORABLE
WIND PROFILES WITH 50+ KT OF EFFECTIVE SHEAR AND AMPLE LOW LEVEL
HELICITY WILL CONTINUE TO SUPPORT UPDRAFT ROTATION/SUPERCELL
MAINTENENCE...WITH LARGE HAIL AS THE PRIMARY THREAT. IN SPITE OF
RATHER FAVORABLE WIND PROFILES FOR LOW LEVEL ROTATION...A
CONTINUALLY COOLING NOCTURNAL BOUNDARY LAYER AND AMPLE SURFACE BASED
CINH SHOULD KEEP ANY TORNADO THREAT BRIEF IN NATURE.

..GUYER.. 06/12/2009

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

ATTN...WFO...DDC...GLD...PUB...

LAT...LON   38590199 38530033 37140025 37110156 37540214 38210219
            38590199

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 11, 9:00 PM CDT	Mesoscale Discussion	SPC	Finney, Grant, Greeley, Hamilton, Kearny, Stanton and 1 more	60 min
Jun 11, 9:46 PM CDT	Severe Thunderstorm Watch	SPC	Clark, Finney, Ford, Grant, Gray, Greeley and 11 more	7 hr
Jun 12, 1:01 AM CDT	Mesoscale Discussion	SPC	Barber, Clark, Comanche, Edwards, Finney, Ford and 24 more	89 min
Jun 12, 2:04 AM CDT	Severe Thunderstorm Watch	SPC	Barber, Butler, Chautauqua, Comanche, Cowley, Edwards and 14 more	6 hr
Jun 12, 6:23 AM CDT	Mesoscale Discussion	SPC	Barber, Butler, Chautauqua, Cherokee, Comanche, Cowley and 15 more	67 min
Jun 12, 7:46 AM CDT	Severe Thunderstorm Watch	SPC	Chautauqua, Cowley, Sumner	7 hr
Jun 12, 5:32 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Franklin, Jackson and 10 more	58 min

Nearby

Mesoscale Discussions in Kansas, 2009 Every mesoscale discussion in 2009

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.