Alert archive / Kansas / Mesoscale Discussions in 2021

Mesoscale Discussion 1087

June 24, 202120 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2021, 10:30 PM CDT for 20 counties in Kansas. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued
Jun 24, 2021, 10:30 PM CDT (03:30 UTC)
Expired
Jun 24, 2021, 11:30 PM CDT
In force
60 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm watch 310

Counties Clark County, KS, Edwards County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Meade County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Rush County, KS, Scott County, KS, Trego County, KS, Wichita County, KS

The radar

The Dodge City radar (KDDC), 65 km from the middle of the area, began a volume at 03:33 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, 3.5 hours before the alert went out and 64 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, Dodge City, at 00:00Z on 2021-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1222 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, Dodge City, at 00:00Z on 2021-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
1222 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
2487 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted.

962 
ACUS11 KWNS 250331
SWOMCD
SPC MCD 250330 
KSZ000-250430-

Mesoscale Discussion 1087
NWS Storm Prediction Center Norman OK
1030 PM CDT Thu Jun 24 2021

Areas affected...west-central and into parts of central Kansas

Concerning...Severe Thunderstorm Watch 310...

Valid 250330Z - 250430Z

The severe weather threat for Severe Thunderstorm Watch 310
continues.

SUMMARY...Isolated severe risk continues with a cluster of storms
over west-central Kansas.  While storms are likely to continue
beyond the scheduled 04Z expiration of WW 310, uncertainty exists
regarding ongoing severe potential.

DISCUSSION...Latest radar loop shows a cluster of vigorous storms
moving across Logan/Greeley/Wichita County, and vicinity, where risk
for marginal hail and locally damaging winds persists.  While some
CAMs continue to favor solutions that bring this convection into
central Kansas, presumably aided by the increasing low-level jet, it
remains unclear as to the degree of severe risk which may extend
beyond the scheduled 04Z WW expiration time.  Current thinking is to
let the WW expire, though will coordinate with local offices with
respect to any possible WW extension, or even new WW issuance.

..Goss.. 06/25/2021

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...ICT...GID...DDC...GLD...

LAT...LON   38330172 38990100 39180001 39149945 38999903 38269890
            37799857 37309914 37120047 38330172

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 7:29 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Marshall, Nemaha and 2 more61 min
Jun 24, 8:13 PM CDTMesoscale DiscussionSPCBarton, Edwards, Ellis, Ellsworth, Finney, Ford and 29 more2 hr
Jun 24, 8:33 PM CDTMesoscale DiscussionSPCAtchison, Doniphan, Douglas, Franklin, Jefferson, Johnson and 3 more87 min
Jun 24, 8:57 PM CDTSevere Thunderstorm WatchSPCAtchison, Douglas, Franklin, Geary, Jackson, Jefferson and 9 more6 hr
Jun 25, 1:40 AM CDTMesoscale DiscussionSPCAllen, Anderson, Butler, Chase, Coffey, Dickinson and 16 more3 hr
Jun 25, 11:56 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Coffey and 17 more3 hr
Jun 25, 1:21 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Jewell, Norton, Phillips, Rawlins and 4 more114 min
Jun 25, 1:43 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Bourbon, Butler, Chase, Coffey and 32 more9 hr
Jun 25, 2:11 PM CDTMesoscale DiscussionSPCClark, Finney, Ford, Gove, Grant, Gray and 18 more2 hr
Jun 25, 2:30 PM CDTSevere Thunderstorm WatchSPCBarber, Barton, Clark, Comanche, Edwards, Finney and 20 more10 hr
Jun 25, 3:07 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Graham, Greeley, Jewell and 11 more6 hr
Jun 25, 3:13 PM CDTMesoscale DiscussionSPCAnderson, Chase, Coffey, Douglas, Franklin, Johnson and 6 more2 hr
Jun 25, 5:54 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Jewell and 11 more66 min
Jun 25, 6:21 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Butler, Greenwood, Harvey, Linn and 4 more84 min

Nearby

Mesoscale Discussions in Kansas, 2021Every mesoscale discussion in 2021

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.