Alert archive / Kansas / Mesoscale Discussions in 2016

Mesoscale Discussion 721

May 24, 20165 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2016, 11:37 PM CDT for 5 counties in Kansas. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
May 24, 2016, 11:37 PM CDT (04:37 UTC)
Expired
May 25, 2016, 1:30 AM CDT
In force
113 min
Issued by
the Storm Prediction Center

Counties Edwards County, KS, Pawnee County, KS, Pratt County, KS, Rush County, KS, Stafford County, KS

The radar

The Dodge City radar (KDDC), 86 km from the middle of the area, began a volume at 04:38 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

Topeka, KS (KFOE), launched 00:00Z, 4.6 hours before the alert went out and 316 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, Topeka, KS at 00:00Z on 2016-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1524 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2016-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
1524 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
1159 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted.

867 
ACUS11 KWNS 250438
SWOMCD
SPC MCD 250437 
KSZ000-250630-

MESOSCALE DISCUSSION 0721
NWS STORM PREDICTION CENTER NORMAN OK
1137 PM CDT TUE MAY 24 2016

AREAS AFFECTED...SOUTH-CENTRAL KS

CONCERNING...TORNADO WATCH 204...

VALID 250437Z - 250630Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 204 CONTINUES.

SUMMARY...TORNADO WATCH 204 WILL BE ALLOWED TO EXPIRE AS SCHEDULED
AT 05Z.  HOWEVER...ISOLATED HAIL APPROACHING SEVERE-CALIBER OF 1
INCH IN DIAMETER REMAINS POSSIBLE NORTH OF AN EAST-WEST ORIENTED
CONVECTIVE OUTFLOW BOUNDARY EXTENDING FROM NORTHERN SUMNER COUNTY
THROUGH FAR NORTHERN HARPER AND BARBER COUNTIES TO NEAR DDC.

DISCUSSION...ISOLATED HAIL APPROACHING THE SIZE OF QUARTERS WILL
REMAIN POSSIBLE INTO...AT LEAST...THE EARLY OVERNIGHT AS A 45-KT
SOUTHERLY LOW-LEVEL JET MAINTAINS A WARM ADVECTION REGIME FOR ASCENT
WITHIN THE SOUTHWEST FLANK OF THE LARGE CENTRAL/EASTERN KS MCS. 
WITH STEEP MIDLEVEL LAPSE RATES PER 00Z OUN SOUNDING AND THE LLJ
MAINTAINING A FEED OF MODERATELY STRONG INSTABILITY INTO
SOUTH-CENTRAL KS...TSTMS ALONG THE SOUTHWEST FLANK OF THE MCS SHOULD
PERSIST OVERNIGHT.

..PETERS.. 05/25/2016

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

ATTN...WFO...ICT...DDC...

LAT...LON   38209966 38549932 38449847 37869845 37609849 37709908
            37799933 38209966

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 7:09 PM CDTTornado WatchSPCCheyenne, Rawlins, Sherman, Thomas6 hr
May 24, 7:15 PM CDTMesoscale DiscussionSPCBarton, Ellsworth, Harper, Kingman, Reno, Rice30 min
May 24, 7:27 PM CDTTornado WatchSPCBarton, Butler, Cloud, Cowley, Dickinson, Ellsworth and 19 more6 hr
May 24, 8:26 PM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Comanche, Edwards, Ellis and 15 more64 min
May 24, 9:49 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Barber, Barton, Bourbon and 55 more86 min
May 24, 10:09 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Brown, Chase, Clay and 24 more6 hr
May 25, 2:47 PM CDTMesoscale DiscussionSPCButler, Chase, Cowley, Dickinson, Elk, Greenwood and 7 more118 min
May 25, 3:44 PM CDTTornado WatchSPCBarton, Butler, Chase, Chautauqua, Clay, Cloud and 25 more9 hr

Nearby

Mesoscale Discussions in Kansas, 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.